TEL AFA4000/1 Installation And Operating Manual
  1. Manuals
  2. Brands
  3. TEL Manuals
  4. Measuring Instruments
  5. AFA4000/1
  6. Installation and operating manual

TEL AFA4000/1 Installation And Operating Manual

Airflow monitor
Hide thumbs
Table of Contents

Advertisement

Quick Links

AFA4000/1
Airflow monitor
Installation and operating manual
Issue 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AFA4000/1 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for TEL AFA4000/1

Summary of Contents for TEL AFA4000/1

  • Page 1 AFA4000/1 Airflow monitor Installation and operating manual Issue 1...

  • Page 2: Table Of Contents

    Overview: Auto Sash Controller ........................28 Features ..............................28 Auto Sash control options ........................29 Control system components ......................32 Installation: Airflow Monitor .......................... 40 Location ..............................40 Installation ............................... 42 Connections ............................45 Dimensions.............................. 49 AFA4000/1 Airflow Monitor / p.2...
  • Page 3 6.10 Auto Sash System Control Box - general wiring diagram ............87 6.11 Start up ..............................88 Calibration ................................89 AFA4000/1 Airflow Monitor ....................... 89 Auto Sash Controller 1, 2 or 3 position..................91 Sash lock function ..........................93 Auto Sash Controller –...
  • Page 4 13.3 Auto sash alarm indications ......................155 Cleaning and maintenance ..........................158 14.1 Cleaning ..............................158 14.2 Contamination .............................159 14.3 Maintenance ............................159 Technical specifications ..........................160 15.1 AFA4000/1 Airflow Monitor ......................160 15.2 Auto Sash Controller ..........................162 Warranty ................................169 Index ...................................171 AFA4000/1 Airflow Monitor / p.4...

  • Page 5: Introduction

    1. Introduction The TEL AFA4000 is a system for controlling and monitoring airflow in industrial and educational fume cupboards and biological safety cabinets for user safety. The AFA4000 airflow monitor and controller is available with optional Auto Sash integration. Using the Auto Sash with the AFA4000 controller means you will no longer need a separate Auto Sash keypad.

  • Page 6: Features

    • Visual & audible alarms • Three digital inputs and three digital outputs • Diagnostics Menu • Bespoke overlay designs, with a choice of two, coloured cases • Bespoke software options tailored to customer requirements • Touch sensitive buttons AFA4000/1 Airflow Monitor / p.6...

  • Page 7: Safety

    WARNINGS appear as follows: Switch off the mains voltage and remove the mains cord before maintenance. Always follow the instructions given by warning labels on the equipment. For further information refer to this guide and other documentation provided. AFA4000/1 Airflow Monitor / p.7...

  • Page 8: Operating Conditions

    • Relative humidity below 80% for temperatures up to 31°C, decreasing linearly to 50% at 40°C • Electrical supply fluctuations not to exceed +10% of nominal voltage The protection provided by the equipment may be impaired if the environmental conditions do not lie within these parameters. AFA4000/1 Airflow Monitor / p.8...

  • Page 9: Electrical Safety

    • Disconnect the equipment from live voltage sources before adjustments, replacements, maintenance or repairs are carried out. If the equipment must be operated during adjustment, maintenance or repair, only a supplier’s Service Engineer is to carry out the procedure. AFA4000/1 Airflow Monitor / p.9...

  • Page 10: Electrical Protection

    External circuits: External circuits which are connected to the Auto Sash controller, except mains connection, shall be insulated by double or reinforced insulation from the mains. AFA4000/1 Airflow Monitor / p.10...

  • Page 11: Emc Compliance

    The Airflow Monitor System and Auto Sash Controller Systems are classified as digital devices used exclusively as industrial, commercial or medical test equipment. They are exempt from the technical standards specified in Part 15 of the FCC Rules and Regulations based on Section 15.103 (c). AFA4000/1 Airflow Monitor / p.11...

  • Page 12: Overview: Airflow Monitor

    Operator display panel Airflow bargraph or timeline display Airflow velocity display with LED halo (red/amber/green) Status window, airflow alarm status Auto Sash status (AFA4000/1/AS only) Menu pushbuttons and alarm mute Auto Sash Up/Down/Cancel buttons (AFA4000/1/AS only) Figure 1: Operator display panel...
  • Page 13 • The display backlight dims to save energy when the following functions are in use: • Fan Off activated- display backlight dims until Fan On is selected. Backlight brightens to normal level when you access the Set Up or Diagnostics menus. AFA4000/1 Airflow Monitor / p.13...

  • Page 14: Alarms And Events

    The Hi/Lo 2 Speed operation is enabled. Message Displayed when Mains fail The power fails to connect to the monitor, when activated. Note: This is an optional extra feature that requires an additional battery unit. AFA4000/1 Airflow Monitor / p.14...
  • Page 15 Note: This is an optional extra feature that requires an additional temperature sensor. High temperature The fume cupboard temperature rises above the high temperature alarm point, when activated. Note: This is an optional extra feature that requires an additional temperature sensor. AFA4000/1 Airflow Monitor / p.15...

  • Page 16: Controls And Indicators

    3.3.2 Audible alarm sounder The AFA4000/1 has an audible sounder with local or remote mute facilities. You can permanently disable the alarm in the calibration and configuration menus. You can mute the alarm by activating the Setback or Alarm Disable functions.

  • Page 17: Operator Display Panel Menu Navigation

    Passwords * Monitor passwords menu Select the password to set: • Admin • Calibration • Configure Enter and re-enter the new password, then press the Mute button. Select Done to return to the Main menu. AFA4000/1 Airflow Monitor / p.17...
  • Page 18 Note: This option is only available if the Auto Sash is connected. Menu item Option Instructions Shows the firmware (F/W) TEL Sash Closer Read-only information and Hardware (H/W) versions Setup Menu * Auto Sash setup menu See section 8.2.1. Engineering Menu * Auto Sash engineering See section 8.2.2.

  • Page 19: External Connections

    External connections 3.5.1 Inputs The AFA4000/1 has the following inputs: 3.5.1.1 Input 1, Input2, Input 3 These are volt-free inputs configurable for: • Normally closed relays • Normally open relays or • Analogue 0 - 5 Vdc input The inputs can be configured as:...
  • Page 20 3.5.5.2 PIR occupancy sensor Auxiliary PIR used for close sash alarm based on the fume cupboard occupancy. 3.5.5.3 Mains fail battery unit Auxiliary plug-in battery unit has a mains fail alarm. AFA4000/1 Airflow Monitor / p.20...

  • Page 21: Functions

    Functions 3.6.1 Airflow functions The AFA4000/1 airflow display can be set up using the pushbutton menus to display airflow in units of m/sec or fpm and can also be set to show plain text Air Safe & Air Fail only.
  • Page 22 Config menu (Setup Monitor > Configure > Cal Config Menu > Audible Alarm). 3.6.3 Input functions The AFA4000/1 has 3 programmable inputs that can be set to: • Analogue (0 - 5 Vdc) • Digital open or • Digital closed operation 3.6.3.1...
  • Page 23 • Sash High relay operates (when configured) • Alarm re-activates after time delay when repeat time enabled High / Low When input configured as High/Low is activated: • Display Icon shows ↑ (High) or ↓ (Low) AFA4000/1 Airflow Monitor / p.23...
  • Page 24 • Audible alarm and relays inhibited until Start up time has elapsed. Note: Used if the AFA4000 is a Slave unit with a common fan. Remote master On/Off signal is used Mute When the input configured as Mute is activated: AFA4000/1 Airflow Monitor / p.24...
  • Page 25 • Audible alarm muted. • Mute Icon shown on display. Note: The Mute function disables the pushbutton mute so that any audible alarm can only be muted using the input, for example remote key switch. AFA4000/1 Airflow Monitor / p.25...

  • Page 26: Components

    Components 3.7.1 Airflow monitor components • 1 – AFA4000/1 Airflow Monitor • 1 – Airflow Sensor c/w 2 metre RJ45 Sensor Cable • 1 – Plug in type low voltage power supply with 5 metre Cable Figure 2: AFA4000/1 airflow monitor AFA4000/1 Airflow Monitor / p.26...
  • Page 27 3.7.2 Auxiliary components The following auxiliary components are available for the AFA4000/1 airflow monitor: Component Function Sash High Proximity Switch Used for Sash High Alarm Sash High Micro Switch Used for Sash High Alarm Personnel Sensor Passive Infra-Red sensor - used for Close Sash Alarm...

  • Page 28: Overview: Auto Sash Controller

    The sash automatically closes when a signal is received System (BMS) Inputs from the BMS. • Building Management The Auto Sash Controller sends signals to the BMS System (BMS) Outputs regarding the current status of the fume hood. AFA4000/1 Airflow Monitor / p.28...

  • Page 29: Auto Sash Control Options

    • When the Tiptronic feature is enabled, manually tip the sash upwards and the sash will drive to the mid- position. • Manually tip the sash downwards and the sash will drive to the bottom position. AFA4000/1 Airflow Monitor / p.29...
  • Page 30 Lock position has been calibrated, the Auto Close feature is disabled and the sash locks in its current position when the sash is raised to the Sash Lock position or higher. This facilitates loading the Fume Cupboard. AFA4000/1 Airflow Monitor / p.30...
  • Page 31 4.2.2 Auto Sash Controller with Sash Low micro-switch A Sash Low Micro-Switch can be specified for fitting by TEL or by the fume hood manufacturer. The switch can be arranged to be open / closed when the sash is closed, depending on fitting.

  • Page 32: Control System Components

    Control system components The Auto Sash Control System comprises of a control unit and additional components. Figure 3: Typical location of main components Note: This example installation is fitted with a pulley and wire sash drive. AFA4000/1 Airflow Monitor / p.32...
  • Page 33 The Auto Sash Control Unit processes inputs from sensors, switches associated with the sash control function and output signals relevant to the motor drive(s) and the alarm panel. Figure 4: Auto Sash Control Unit - single and dual controller enclosure AFA4000/1 Airflow Monitor / p.33...
  • Page 34 'ignored' by the sensor. When the user is not present at the fume hood, the sash will close automatically. This follows a pre-set delay time, if the Sash Light Curtain is not broken and the sash is open. AFA4000/1 Airflow Monitor / p.34...
  • Page 35 • The infra-red transmitter has multiple, closely spaced, Light Emitting Diodes (LEDs) to facilitate the detection of small objects. AFA4000/1 Airflow Monitor / p.35...
  • Page 36 A sensor on one side of the fume hood detects the reflection of a beam of light from a self-adhesive strip of retro-reflective tape mounted on the opposite inside wall of the fume hood. AFA4000/1 Airflow Monitor / p.36...
  • Page 37 During the initial on-screen calibration set up the sash controller detects the sensor direction of travel and then provides position information of the sash to the Auto Sash Control Unit, to enable calibration of the sash open / closed positions. AFA4000/1 Airflow Monitor / p.37...
  • Page 38 The Tilt Switch is an optional, third party supplied component, which is fitted to the fume hood top panel. It operates to isolate the Auto Sash controls, when the top panel is open to facilitate the servicing of the fume hood. Figure 13: Typical third-party tilt switch AFA4000/1 Airflow Monitor / p.38...
  • Page 39 Three types of drive are available, none of which preclude manual opening / closing: • Rack and pinion drive • Chain and sprocket drive • Pulley and wire drive Chain and sprocket drive Rack and pinion drive Pulley and wire drive Figure 15: Example drives AFA4000/1 Airflow Monitor / p.39...

  • Page 40: Installation: Airflow Monitor

    • The standard 2 metre ‘telephone style’ sensor cable must reach from the back of the AFA4000/1 airflow monitor to the airflow sensor. When possible ensure that the airflow sensor is mounted on the same side of the fume cupboard as the AFA4000/1. Note: Longer sensor cables are available on request.
  • Page 41 If possible, mount the sensor on the front of the fume cupboard and use a short length of tube. Tube lengths of more than 1 m or smaller diameter will restrict the AFA4000/1 Airflow Monitor / p.41...

  • Page 42: Installation

    5.2.1 AFA4000/1 Use the cut-out details provided with the unit (Figure 17) to cut-out and drill the holes in the fume cupboard for the AFA4000/1 mounting bracket. Make sure that the AFA4000 fits into the cut-out before proceeding. AFA4000/1 Airflow Monitor / p.42...
  • Page 43 Figure 17: AFA4000 cut-out template Note: Print to A4. Do not scale or print to fit page. Note: Separate mounting boxes and adaptor plates are available for retro-fitting to older fume cupboards. AFA4000/1 Airflow Monitor / p.43...
  • Page 44 Push the bottom of the AFA4000 onto the mounting bracket (D in Figure 18). Secure the AFA4000 to the mounting bracket using the fixing screw in the bottom face of the monitor (E in Figure 18). AFA4000/1 Airflow Monitor / p.44...

  • Page 45: Connections

    Note: Print to A4. Do not scale or print to fit page. Connections Connect the power supply cable into the back of the AFA4000/1 (H in Figure 20) and to the connection on top of the fume cupboard. Connect the ‘telephone style’ airflow sensor plug-in cable to the sensor and the back of the AFA4000/1 unit (J in Figure 20).
  • Page 46 Figure 20: AFA4000/1 monitor connections 0-10 V velocity re-transmission Relay output 3 (used if relay interface output, 0-10 Vdc over 0-1.00 m/sec / is not fitted) 0-200 fpm Input 1 – digital or analogue 15 Vdc power supply (used if relay interface is not fitted) Input 2 –...
  • Page 47 Figure 21: AFA4000/1 typical connection diagram AFA4000/1 Airflow Monitor / p.47...
  • Page 48 Figure 22: AFA4000/1/AS typical connection diagram AFA4000/1 Airflow Monitor / p.48...

  • Page 49: Dimensions

    Dimensions Figure 23: AFA4000/1 dimensions AFA4000/1 Airflow Monitor / p.49...
  • Page 50 Figure 24: SM7 airflow sensor dimensions AFA4000/1 Airflow Monitor / p.50...

  • Page 51: Start Up

    Start up 5.5.1 AFA4000/1 The AFA4000/1 must be field-calibrated once the room air supply and exhaust is proportionally balanced. When the unit is powered up, the following sequence of events occurs: The alarm performs a self-test of its functions and audible alarm which takes approximately 3 seconds.
  • Page 52 • When the Auto Sash Controller is disconnected, the Auto sash controller status and menus are not displayed. AFA4000/1 Airflow Monitor / p.52...

  • Page 53: Installation: Auto Sash Controller

    / front panel facing upwards. • Screwed to the outside wall of fume hood wall - vertical mounting Figure 25: Auto Sash Control Unit Lid/Front Figure 26: Rear of Auto Sash Control Unit Panel AFA4000/1 Airflow Monitor / p.53...
  • Page 54 / or sidewall. Where a cable is supplied with a DIN connector, the grommet should have a minimum internal diameter of 17mm (0.67"). • Do not overstress cables by bending, for example when passing at 90° through a sidewall. AFA4000/1 Airflow Monitor / p.54...
  • Page 55 Figure 28: Sash Control System – general layout, wiring schematic and illustration (inset) AFA4000/1 Airflow Monitor / p.55...

  • Page 56: Auto Sash Keypad / Alarm Panel

    Fit the Auto Sash Keypad to the fume hood using either a single gang socket for UK applications (Figure 29) or using a cut-out to the (Version 2) dimensions (Figure 30). Figure 29: Version 1 - UK Single Gang Keypad Fits in Standard Single Gang Socket AFA4000/1 Airflow Monitor / p.56...

  • Page 57: Auto Sash Motor Drive Unit

    A Motor Drive Unit is used to automatically raise and lower the fume hood sash. Three types of drives are available: • Rack and pinion motor drive. • Chain and sprocket motor drive. • Wire and pulley motor drive. The optimal choice of sash drive type depends on whether: AFA4000/1 Airflow Monitor / p.57...
  • Page 58 To ensure that the T-bar fixing clears the bottom of the motor assembly, there should be at least 50 mm between the top of the sash and the bottom of the motor drive assembly, when the sash is fully opened. AFA4000/1 Airflow Monitor / p.58...
  • Page 59 Ensure that the rack is free to move over the full sash opening before marking up and fixing the T-bar to the sash frame. Note: The rack must to run vertically at 90º to the horizontal axis of the sash frame. AFA4000/1 Airflow Monitor / p.59...
  • Page 60 See the wiring schematic in section 6.10 and Figure 31. Note: It is important to observe the correct polarity when making electrical connections. Connect the clutch assembly to the Auto Sash Control Unit using the cables provided (with blue and yellow connectors). AFA4000/1 Airflow Monitor / p.60...
  • Page 61 Figure 34: Side views of a rack and pinion drive typical installation 6.3.2 Chain and sprocket drives Two types of chain and sprocket drives are available: • Shaft Drive AFA4000/1 Airflow Monitor / p.61...
  • Page 62 Where possible positioned the motor drive and sprocket centrally on the shaft. The motor assembly should be fitted to a rigid framework to support the motor. Loosely fit the chain before fixing the motor plate to ensure the chain is correctly tensioned and aligned. AFA4000/1 Airflow Monitor / p.62...
  • Page 63 Fit one end of the chain to the counterweight or sash wire near to the counterweight. Fit the freewheeling sprocket in line with the drive sprocket. Loosely fit the chain over the freewheeling pulley and determine the best position for the chain counterweight. AFA4000/1 Airflow Monitor / p.63...
  • Page 64 Run the sash wire over the first guide pulley, around the drive pulley and then over the final guide pulley. When the motor drive has been installed, open / close the sash to ensure that the sash can travel freely. AFA4000/1 Airflow Monitor / p.64...

  • Page 65: Sash Light Curtain

    Figure 38: Sash Light Curtain Control Box Use the pre-assembled cables and connectors supplied to connect the Light Curtain Control Box to the Auto Sash Control Unit. See the wiring schematic in section 6.10 and Figure 31. AFA4000/1 Airflow Monitor / p.65...
  • Page 66 The sash light curtain transmitter and receiver should be fitted so that their cable entry / exit points are at the top. Ensure that the light beam path is free from other obstructions. AFA4000/1 Airflow Monitor / p.66...
  • Page 67 0 to 3 m (0 to 118.11") range of fume hood widths. For a typical fume hood width of 1 to 2 m (39.37 to 78.740"), the maximum allowable misalignment / displacement ranges from approximately 20 to 40 mm (0.79 to 1.58"). AFA4000/1 Airflow Monitor / p.67...
  • Page 68 Note: There is a 123 mm (4.84") gap from the top of the light curtain transmitter to the first LED down and a 22 mm (0.87") gap from the bottom of the transmitter to the first LED up. AFA4000/1 Airflow Monitor / p.68...
  • Page 69 Drill the holes for the fixing screws. Use the 2 mm (0.08") drill bit provided and fix the transmitter and receiver. Figure 43: Transmitter / Receiver fixing holes AFA4000/1 Airflow Monitor / p.69...
  • Page 70 Pass the cables through the sidewall and connect to the Sash Light Curtain Control Box on the top of the fume hood. Connect the light curtain transmitter and receiver to the Sash Light Curtain Control Box using the plug-in RJ45 cables provided. AFA4000/1 Airflow Monitor / p.70...
  • Page 71 Control Box to the Auto Sash Control Unit. See the wiring schematic in section 6.10 and Figure 31. Fix the light curtain transmitter and receiver to the sidewall using their fixing holes and re-attach the plastic covers. AFA4000/1 Airflow Monitor / p.71...

  • Page 72: Installing And Aligning The Under Sash Sensor

    Attach the 5 m cable to the sash counterweight to keep the cable taught as the sash opens or closes. Encase the cable from the sash counterweight to the sash controller box can in plastic sheathing to guide the cable slack and stop it from snagging. AFA4000/1 Airflow Monitor / p.72...
  • Page 73 Position the centre of the retro-reflective tape strip in line with the centre of the sensor. A small offset between the sensor and retro-reflective tape strip is acceptable. The maximum offset values are shown in Figure 49. AFA4000/1 Airflow Monitor / p.73...

  • Page 74: Tilt Switch

    6.10 and Figure 31. • Link out / connect the relevant terminals on the Auto Sash Control Unit when not using a Tilt Switch. See the wiring schematic in section 6.10 and Figure 31. AFA4000/1 Airflow Monitor / p.74...

  • Page 75: Sash Low Switch

    Auto Sash Control Unit to terminals C and NO on the switch. If the switch is installed so that the lever pushes in when the sash is open, connect the wiring to the Auto Sash Control Unit to terminals C and NC on the switch. AFA4000/1 Airflow Monitor / p.75...
  • Page 76 Connect the Sash Low Proximity Switch to the Auto Sash Control Unit (Figure 52). See the wiring schematic in section 6.10 and Figure 31. Figure 52: Sash low proximity switch wiring schedule AFA4000/1 Airflow Monitor / p.76...

  • Page 77: Sash Position Sensor

    Where the wire runs at an angle to the sensor, ensure the angle is as small as possible to prevent the wire from rubbing on any part of the sensor body, including the cable housing extension. AFA4000/1 Airflow Monitor / p.77...
  • Page 78 4.85 mm (0.18") diameter fixing hole in its centre. • The sash cable using a cable tie, ensuring that the fixing ring does not run over the pulleys. • The counterweight using a cable (Figure 55). AFA4000/1 Airflow Monitor / p.78...

  • Page 79: Personnel Sensor

    Personnel Sensor. Mount the sensor centrally to the front of the fume hood and above the fume hood sash, use the fixing holes in the back of the sensor. See the table in Figure 56 for the correct mounting hole dimensions and locations. AFA4000/1 Airflow Monitor / p.79...
  • Page 80 The Personnel Sensor should be positioned so that it points straight down, with the horizontal axis of the sensor parallel to the horizontal axis of the fume hood (Figure 57). Note: Do not mount the sensor higher than 250 0mm (98”) from the laboratory floor. AFA4000/1 Airflow Monitor / p.80...
  • Page 81 Fit the connection cable to the sensor cable inside the sensor housing. Plug the 4-way terminal block into the Auto Sash Control Unit (Figure 58). See the wiring schematic in section 6.10 and Figure 31. Figure 58: Personnel sensor 4-way terminal block AFA4000/1 Airflow Monitor / p.81...
  • Page 82 Figure 59: Personnel sensor beam width adjustment potentiometers Adjust the width of the Personnel Sensor beam using the two potentiometers. This is to achieve the best field coverage in front of the fume hood for the hood's width (Figure 60). AFA4000/1 Airflow Monitor / p.82...
  • Page 83 The body of the Personnel Sensor can be tilted from 0° to 5° in three increments to achieve this. AFA4000/1 Airflow Monitor / p.83...
  • Page 84 Figure 61: Adjusting the personnel sensor beam angle away from the fume hood AFA4000/1 Airflow Monitor / p.84...
  • Page 85 ON/OFF (Figure 62). Note: The timer will reset if any movement is detected during the time period. 3 & 4 Pattern depth Set the distance of the detection field away from the sensor. AFA4000/1 Airflow Monitor / p.85...
  • Page 86 Self-Diagnostics Setting switch 8 to 'ON' will start a self-diagnostic test when the sensor is switched on. If the test detects a fault the LED will continually flash red and green. AFA4000/1 Airflow Monitor / p.86...

  • Page 87: Auto Sash System Control Box - General Wiring Diagram

    6.10 Auto Sash System Control Box - general wiring diagram AFA4000/1 Airflow Monitor / p.87...

  • Page 88: Start Up

    • When the controller has not been calibrated, the monitor displays the messages: • Sash drive inhibited, if the tilt switch input is open • Auto Sash Not Configured, if the tilt switch is closed AFA4000/1 Airflow Monitor / p.88...

  • Page 89: Calibration

    7. Calibration AFA4000/1 Airflow Monitor The airflow monitor must be calibrated when it is first installed, or when required during use. From the Run Screen press and hold the Mute button for 5 seconds until the Main Menu is displayed.
  • Page 90 • Do not use fully open and fully closed sash positions for the calibration points. The recommended positions are normal operating height (for example, 500 mm 20”) for the first sample and approximately half the sash opening (for example, 250 mm 10”) for the second sample. AFA4000/1 Airflow Monitor / p.90...

  • Page 91: Auto Sash Controller 1, 2 Or 3 Position

    Note: When you go from the main menu to the run screen, a note briefly appears saying ‘calibration required’. Use the ↑ / ↓ buttons to select Set Up Auto Sash. The display shows the message TEL SASH CLOSER. Press the Mute button to display the current Hardware and Software version, for example, 1.
  • Page 92 For example, before calibrating the lower position, fully close the sash and then open it by 5 mm, or before calibrating the middle position, open the sash to the normal height and then lower it by 5 mm. AFA4000/1 Airflow Monitor / p.92...

  • Page 93: Sash Lock Function

    Note: When you go from the main menu to the run screen, a note briefly appears saying ‘calibration required’. Use the ↑ / ↓ buttons to select Set Up Auto Sash. The display shows the message TEL SASH CLOSER. Press the Mute button to display the current Hardware and Software version, for example, 1.

  • Page 94: Auto Sash Controller - Stand-Alone

    Note: Check that all cables are secured away from moving components and are not overstressed or damaged. Note: Check the security of all electrical connections. AFA4000/1 Airflow Monitor / p.94...
  • Page 95 • When the Tilt Switch input is closed, the display shows ‘Auto Sash Not Configured'. 7.4.2 Calibrating the Auto Sash Control Unit for Tiptronic operation using the Auto Sash keypad The Auto Sash Control Unit must have each of its required stationary positions defined for Tiptronic functionality: AFA4000/1 Airflow Monitor / p.95...
  • Page 96 • Press Mute, if only two pre-set positions (‘lowest’ and ‘normal’) are required. • Set the sash to the full opening height. Press Enter, for three position operation. The lowest, normal and fully open positions are now calibrated. Press Enter, to exit Calibration mode. AFA4000/1 Airflow Monitor / p.96...
  • Page 97 If the chosen position is acceptable, the lock position will be set. Press ↓ button, select Back to Set up menu and press Enter. Press ↓ button, select Exit and Save Changes and press Enter. AFA4000/1 Airflow Monitor / p.97...
  • Page 98 Auto Sash Control Unit. This activates the Sash Control Alarm after the selected time delay and the reset button must be pressed once the Safety Light Curtain has been calibrated. Remove the cover from the Safety Light Curtain Control Box. AFA4000/1 Airflow Monitor / p.98...
  • Page 99 Power up the Auto Sash Control Unit. Check that the Safety Light Curtain Transmitter and Receiver are connected correctly and are operational. The red Power On LED will now be visible on the receiver (Figure 66). AFA4000/1 Airflow Monitor / p.99...
  • Page 100 Set sw3 to Off to store the settings. Turn the gain potentiometer approximately 5 degrees clockwise to ensure sufficient gain. Use a glass object to test whether it breaks the beam. Do this across the entire open face of the fume hood. AFA4000/1 Airflow Monitor / p.100...
  • Page 101 The sensor will be fully operational approximately 10 seconds after the sensor is powered up. The LED on the sensor will be green if the detection area is clear and red if it is not clear. AFA4000/1 Airflow Monitor / p.101...
  • Page 102 To test that the sensor is operational, listen to whether the internal relay clicks when standing in front of the fume hood and when walking away. 7.4.8 Sash low switch No user calibration of the Sash Low Switch is possible. AFA4000/1 Airflow Monitor / p.102...

  • Page 103: Configuration

    AFA4000/1 configuration menus To configure the AFA4000/1 Airflow Monitor, navigate to Main Menu > Set up Monitor > Configure to display the Monitor Set up Menu. Press the ↓ button to scroll down the menu list and press Mute to select the required option.
  • Page 104 If the timer is enabled, set the time. Low Air Relay Low air relay Select the required relay: • None • Output 1 – Output 3 Allow inhibit Enable or disable the inhibit screen feature. AFA4000/1 Airflow Monitor / p.104...
  • Page 105 Night set-back relay Select the required relay: • None • Output 1 – Output 3 Night Set Back Night set-back mute Enable or disable the night set-back Mute mute. AFA4000/1 Airflow Monitor / p.105...
  • Page 106 Select the required protocol: • Modbus • None • TEL • BACNet Note: The TEL protocol is used to connected to TEL Config Manager software and the TEL AFA5000 Room Space Controller, the Modbus Slave ID is used when set to TEL protocol.
  • Page 107 Enable or disable the high air alarm. If enabled, set the high air flow threshold. Lower Air Fluctuation Set the lower air fluctuation level (%). Higher Air Fluctuation Set the higher air fluctuation level (%). AFA4000/1 Airflow Monitor / p.107...
  • Page 108 Select Enable to sound the audible alarm or Disable not to sound it. Sensor Difference Set the sensor difference (%). Display Smoothing Set the sensor difference (seconds). Keyboard Click Enable or disable the keyboard click. Done Return to the Monitor config menu (section 8.1.1). AFA4000/1 Airflow Monitor / p.108...
  • Page 109 • 1200 • 14400 • 2400 • 19200 • 4800 • 38400 • 9600 • 57600 Parity Set the parity: • None • Odd • Even Done Return to the Monitor config menu (section 8.1.1). AFA4000/1 Airflow Monitor / p.109...
  • Page 110 • 9600 • 57600 Parity Set the parity: • None • Odd • Even Max Masters Set the maximum number of AFA4000 devices on the network. Done Return to the Monitor config menu (section 8.1.1). AFA4000/1 Airflow Monitor / p.110...

  • Page 111: Afa4000/1/As Configuration Menus

    Note: The Auto Sash menus are only available when the Auto Sash is connected. To configure the AFA4000/1/AS Airflow Monitor, navigate to Main Menu > Set up Auto Sash > Setup Menu to display the Menu options. Press the ↓ button to scroll down the menu list and press Mute to select the required option.
  • Page 112 (0 – 3600 seconds) Menu item Option Instructions Sash 1 settings Open Alarm This displays when Auto Open is (cont.) enabled. Set the time before the alarm activates and the sash opens. (0 – 10 seconds) AFA4000/1 Airflow Monitor / p.112...
  • Page 113 • Normally Closed (N/C) Contact • Disabled Menu item Option Instructions Sash 1 settings Light Curtain Test Activate the sensor test, if the Fail-Safe (cont.) sensors with test wire are fitted: • Pulse High • Pulse Low • Disabled AFA4000/1 Airflow Monitor / p.113...
  • Page 114 Note: TipTime is the time threshold for the Auto Sash to detect manual movement, to allow manual operation. When movement is detected outside of the set times the sash will automatically drive to the calibrated position. AFA4000/1 Airflow Monitor / p.114...
  • Page 115 Set the Open Sash BMS input: Settings (cont.) • Disabled • Input 1 – 4 open • Input 1 – 4 closed Close Sash Set the Close Sash BMS input: • Disabled • Input 1 – 4 open AFA4000/1 Airflow Monitor / p.115...
  • Page 116 Menu item Option Instructions BMS Output Alarm Sounder Enable / disable the alarm sounder. Settings Analog Volts Select the required analogue voltage output: • 0 – 10V • 1 – 10V • 0 – 5V AFA4000/1 Airflow Monitor / p.116...
  • Page 117 Changes any changes. Exit and Save Return to Main menu saving all changes Changes made. 8.2.2 Auto Sash engineering menu Note: The Engineering menu is password protected. The default password is 1 2 1 2. AFA4000/1 Airflow Monitor / p.117...
  • Page 118 The Engineering menu is used by TEL Ltd engineers to test the Auto Sash Controller inputs and outputs. To change options in the Engineering menu: Press Mute to select the Engineering menu item. The ‘>’ symbol next to the first option is underlined.
  • Page 119 When Mute is pressed, an X appears in the bottom row to indicate that the motor is driving forward. When Mute is pressed, an X appears in the bottom row to indicate that the motor is driving in reverse. AFA4000/1 Airflow Monitor / p.119...
  • Page 120 Menu item Option Instructions Input / Output > 0-10V 0-20mA Output test settings. Diagnostics BMS 10V 20mA Select a voltage or current for the (cont.) outputs for testing. Editable parameters are: AFA4000/1 Airflow Monitor / p.120...
  • Page 121 S1 String Type Current setting of the Sash 1 String Information type. (cont.) S1 String Dir Current setting of the Sash 1 String direction. S1 Top Position Current setting of the Sash 1 top position. AFA4000/1 Airflow Monitor / p.121...
  • Page 122 Exit options. Exit and Save Changes Press Mute to save the password changes and to exit back to the Main Menu. Cancel Back to Press Mute to exit without saving the Engineering Menu password changes. AFA4000/1 Airflow Monitor / p.122...

  • Page 123: Auto Sash Controller System Menus

    The System Menus allow the user to define parameters affecting the operation of the Auto Sash Controller and associated systems. The overall structure of the System Menus and routes to access individual menu items are illustrated in the flow chart on the next page: AFA4000/1 Airflow Monitor / p.123...
  • Page 124 AFA4000/1 Airflow Monitor / p.124...
  • Page 125 To return to the Main / Setup menu use ↑/↓ buttons and select Back to Setup Menu, press Enter. Using ↑/↓ buttons select one of: • Exit and Abandon Changes • Exit and Save Changes AFA4000/1 Airflow Monitor / p.125...
  • Page 126 • Auto Close Only S1 Open Delay Set the time delay before the sash opens. (0 – 3600 seconds) S1 Open Alarm Set the time before the alarm activates before the sash opens. (0 – 10 seconds) AFA4000/1 Airflow Monitor / p.126...
  • Page 127 Calibrates sash position sensor and motor direction. See section 7.4.2. S1 Tiptronic Enable/disable the Tiptronic feature. Menu item Option Instructions Sash 1 settings S1 Max Tiptime Sets Tiptronic touch sensitivity. (cont.) (0 to 1500ms – 0 to 1.5 seconds) AFA4000/1 Airflow Monitor / p.127...
  • Page 128 • Input 1 Open • Input 1 Closed Close Sash Set the Close Sash BMS input: • Disabled • Input 1 Open • Input 1 Closed EV Open Sash Set the EV Open Sash BMS input: AFA4000/1 Airflow Monitor / p.128...
  • Page 129 Set the Foot SW Open BMS input: (cont.) • Disabled • Input 1 Open • Input 1 Closed Foot SW Closed Set the Foot SW Close BMS input: • Disabled • Input 1 Open • Input 1 Closed AFA4000/1 Airflow Monitor / p.129...
  • Page 130 • Close on Obstruction Detected • Open on User Detected • Close on User Detected • Open on Sash Open • Close on Sash Open • Open on Sash Locked • Close on Sash Locked AFA4000/1 Airflow Monitor / p.130...

  • Page 131: Auxiliary Features And Connections

    9. Auxiliary features and connections Optional input function - temperature sensor The AFA4000/1 can be fitted with a temperature sensor. The sensor displays the fume cupboard temperature and can produces high and low temperature alarms. The temperature display can be hidden or shown with the airflow velocity display.
  • Page 132 Use the ↑ / ↓ buttons to select High Temperature Alarm, use the ↑ / ↓ buttons to set alarm point. Use the ↑ / ↓ buttons to select Show Temperature, use the ↑ / ↓ buttons to select Enabled or Not Enabled AFA4000/1 Airflow Monitor / p.132...

  • Page 133: Optional Input Function - Close Sash Alarm

    The alarm can be set to repeat if the sash is left open for prolonged periods. The alarm function uses a PIR occupancy sensor and is connected in series with a micro- switch input to detect the sash position. AFA4000/1 Airflow Monitor / p.133...
  • Page 134 Switch Mounting Switch Notes connections Switch closes when sash is C & NO Refer to the micro-switch for open switch connection details. Switch closes when sash is C & NC closed AFA4000/1 Airflow Monitor / p.134...
  • Page 135 1 minute, once muted the alarm will re-sound after 5 minutes. The alarm will reset if the fume cupboard is then occupied or the sash is <100 mm. AFA4000/1 Airflow Monitor / p.135...

  • Page 136: Rs485 Communications Output

    10. RS485 communications output 10.1 Overview and connections The AFA4000 series has onboard RS485 comms with 3 protocols: Protocol Description Protocol for connections to TEL Configure Manager PC software and room controls Modbus Modbus RTU protocol BACNet BACNet MS/TP protocol (To connect to BACnet IP, a 3rd party router is...
  • Page 137 Figure 69 Typical connection diagram AFA4000/1 Airflow Monitor / p.137...

  • Page 138: Configuration Settings

    When you change protocols, power cycle the AFA4000 to make sure that any changes you make take effect. The TEL protocol has fixed parameters so cannot be adjusted in the field, select the TEL protocol. From the Requires set up screen, press Mute, or from the Run Screen press and hold the Mute button for 5 seconds until the Main Menu is displayed.
  • Page 139 Use the ↑ / ↓ buttons to select Device Instance, then press Mute. Enter the required instance and press Mute. Use the ↑ / ↓ buttons to select Station ID, then press Mute. Enter the required ID and press Mute. AFA4000/1 Airflow Monitor / p.139...

  • Page 140: Config Manager

    RS232/485 converter and TEL comms adaptor to communicate with the RS485 comms port on the AFA4000. The software is free to download, and the comms adaptor is available to buy from TEL. Most 3rd party RS232/485 converters will work with the AFA4000, the recommended converter has the part number: - EasySYNC ES-U-2101-M.
  • Page 141 Figure 70: Connection diagram with RS232/485 converter AFA4000/1 Airflow Monitor / p.141...

  • Page 142: Operation: Airflow Monitor

    (AFA4000/1/AS only) Figure 71: Operator display panel showing the Run screen The Run screen displays when the AFA4000/1 is switched on and shows the real-time status of the system. The colour of the LED halo, text and status message is important:...

  • Page 143: Operation: Auto Sash Controller

    • When a user is present in front of the fume hood, the sash can be operated by hand. 12.2 Modes of operation The Auto Sash Controller has the following modes of operation: • User Present • User Not Detected • Auto-Open (User Configurable) • Building Management System (BMS) Inputs • Sash Lock AFA4000/1 Airflow Monitor / p.143...
  • Page 144 • If the sash is closed by any other method, for example manually, tiptronically, pushbutton and BMS, the sash will open automatically and return to its calibrated position. AFA4000/1 Airflow Monitor / p.144...
  • Page 145 • The controller does not detect sash movement when the motor is driving. 12.2.3.1 AFA4000/1/AS only When the Auto open feature is enabled in the menu and is switched on from the keypad, * (asterix) is displayed in the left-hand corner of the Status Window, for example * User present.
  • Page 146 This function is used when the sash needs to remain in the open position for a prolonged time, to allow loading or setting up of equipment inside the fume cupboard. AFA4000/1 Airflow Monitor / p.146...

  • Page 147: Operation And Alarm Indication

    Sash Disabled Displayed when the sash drive has been disabled in the menu settings. Sash Locked Displayed when the sash is at or above the calibrated lock position. AFA4000/1 Airflow Monitor / p.147...
  • Page 148 12.3.2.2 AFA4000/1/AS The Auto Sash can be set to be Disabled, Enabled or USR enabled (User enable / disable). To User enable the Auto Sash, press and hold the Mute and ↑ buttons for 1 second.

  • Page 149: Troubleshooting

    13. Troubleshooting 13.1 Fault finding 13.1.1 AFA4000/1 Problem Check for No LEDs, Screen blank • Check the power supply is securely plugged into the monitor. • Check the power supply is securely plugged into the mains power socket. • Check that there is 15 Vdc power supply on the monitor terminals.
  • Page 150 AFA4000. 13.1.2 RS485 comms Problem Check for BACnet: • Ensure the AFA4000/1 is in Run mode or Diagnostics screen. The comms are interrupted when the AFA4000 is Device not present on in the pushbutton menus. Network • Power cycle the AFA4000. This is required when the protocol has been changed.
  • Page 151 • Check the Light curtains or Under sash sensors have been Alarm always shown calibrated. • Check the Light curtain or Under sash sensor Input polarity is correct (block the beam, if the error resets then the input polarity is wrong). AFA4000/1 Airflow Monitor / p.151...
  • Page 152 Fault LED is illuminated Ensure that the area between the sash sensor transmitter and receiver is clear and that the sensors are aligned, power up again to reset. AFA4000/1 Airflow Monitor / p.152...

  • Page 153: Diagnostics Menu

    Alarm Test Sounds the Audible Alarm Comms Data Displays the following: • Protocol (None / TEL / Modbus / BACnet) • Slave ID (for Modbus) or Device Instance (for BACnet) • Baud Rate • Parity • Tx – Number of Data Packets transmitted (increments when transmitting).
  • Page 154 • Sash Closed On / Off status • Obstruction On / Off status • User On / Off status (User detected) • Sash open On / Off status • Sash Locked On / Off status AFA4000/1 Airflow Monitor / p.154...

  • Page 155: Auto Sash Alarm Indications

    Remove Sash Lock / This is displayed when the sash is at or above the calibrated Cancel to Reset lock position for longer than the pre-set alarm time. Press Mute or lower the sash to reset the alarm. AFA4000/1 Airflow Monitor / p.155...
  • Page 156 This is displayed along with the normal text when the user is not detected and when the EV Close input is activated. The sash will drive closed when the user is not present and the sash is clear. The sash can be operated manually when the AFA4000/1 Airflow Monitor / p.156...
  • Page 157 Sash Opening This is displayed when the Sash Open Footswitch has been operated whilst the operator is present. Sash Closing This is displayed when the Sash Close Footswitch has been operated whilst the operator is present. AFA4000/1 Airflow Monitor / p.157...

  • Page 158: Cleaning And Maintenance

    14. Cleaning and maintenance 14.1 Cleaning The Auto Sash Controller and AFA4000/1 are generally maintenance free. All parts fitted within the laboratory space may need occasional cleaning depending on the environmental conditions and usage. Include the following: Part Method Notes...

  • Page 159: Contamination

    A new tested label should be fitted or a new date should be applied to an existing label to show that the system has been repaired and tested and is safe to use. AFA4000/1 Airflow Monitor / p.159...

  • Page 160: Technical Specifications

    15. Technical specifications 15.1 AFA4000/1 Airflow Monitor 15.1.1 Physical Specification AFA4000 Dimensions (device) 148 mm (H) x 80 mm (W) x 25.9 mm (max) Dimensions (mounting bracket) 143.4 mm (H) x 75.4 mm (W) Mounting Semi flush Connections Flying leads with plug in connections...
  • Page 161 Specification AFA4000 Monitor operating range +13 to +30 ̊ C Airflow sensor operating temperature +15 to +30 ̊ C Airflow sensor working temperature Ambient to +30 ̊ C Storage temperature -30 to +65 ̊ C AFA4000/1 Airflow Monitor / p.161...

  • Page 162: Auto Sash Controller

    Steel wire sprung potentiometer • 1 m length for bench type F/Cs Sensor • 3 m length for walk-in type F/Cs Sash Sensor PIR sensor with glass detection • Light Curtain (retro-fit and new build types) AFA4000/1 Airflow Monitor / p.162...
  • Page 163 • 4 – 20 mA Control Sash operation • Manual sash operation (where Functions user detected) Tiptronic 'touch sensitive' open/close • Auto-Close (unoccupied condition) • Auto-Open (pushbutton enable feature) • Keypad Pushbutton open/close • Footswitch open/close (optional) AFA4000/1 Airflow Monitor / p.163...
  • Page 164 Sash status (user present / open / Indication closing / closed etc) Connections Flying leads with plug-in (All cable lengths can be connections specified) Agency Listing CE RoHS Mains Power On-board fuse (F1) 3.15 A, 250 V rated Protection AFA4000/1 Airflow Monitor / p.164...
  • Page 165 PWM Output Clutch 24 Vdc • Max total power 135W (5.6A) Personnel Sensor CN6 • 2 m flying lead with 4-way • Max 24 Vdc 100 plug-in terminal block mA (PTC Fused 200 mA) AFA4000/1 Airflow Monitor / p.165...
  • Page 166 (2 Way) (Programable 20 or 4-20 mA) • External Sounder (2-way) BMS Digital Inputs CN10 • 4 programmable digital • Max 24 Vdc 100 inputs mA per input • 8-way plug-in terminal • Input impedance block 100kΩ AFA4000/1 Airflow Monitor / p.166...
  • Page 167 15.2.5 Auxiliary equipment interconnections 15.2.5.1 TEL supplied equipment All TEL supplied equipment is provided with plug-in terminal connections. Isolate the mains supply to the controller before connecting any equipment. Follow the installation instructions in the relevant sections of this manual.
  • Page 168 Where possible test the mechanical operation of the equipment before the mains power is switched on to the controller. Test that the motor assembly is free and the sash moves correctly by hand. Test that the sash position sensor draw wire is free and not catching. AFA4000/1 Airflow Monitor / p.168...

  • Page 169: Warranty

    OR, AT THE OPTION OF THE SELLER, THE REPAIR OR REPLACEMENT OF THE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES. SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION, DISMANTLING, REASSEMBLY OR REINSTALLATION COSTS OR CHARGES. NO ACTION, AFA4000/1 Airflow Monitor / p.169...
  • Page 170 Seller. This LIMITATION OF WARRANTY AND LIABILITY may not be amended or modified nor may any of its terms be waived except by a writing signed by an authorized representative of the Seller. AFA4000/1 Airflow Monitor / p.170...

  • Page 171: Index

    17. Index AFA4000/1 ............ 89 contamination ........159 calibration installation ..........53 messages ..........90 control box wiring diagram ....87 notes ............90 control unit ..........53 airflow monitor mounting ..........53 audible alarm sounder ......16 wiring ............54 auxiliary components ......
  • Page 172 ........37 maintenance ........159 sash position sensor......37 configuration..........103 tilt switch ..........38 AFA4000/1 configuration menus ..103 under sash sensor........ 36 BACnet settings menu ....... 110 features ............. 28 cal config menu........107 options ............29 hours counter menu......
  • Page 173 ......143 calibration ..........93 modes of operation ......143 technical specifications ......160 auto open ........... 144 AFA4000/1 ..........160 bms inputs .......... 145 I/O ............161 sash lock ..........146 operational ........... 160 user not detected ......144 physical ..........
  • Page 174 AFA4000/1 Airflow Monitor / p.174...
  • Page 175 Temperature Electronics Ltd. Unit 2 Wren Nest Road Glossop SK13 8HB United Kingdom T: +44 (0) 1457 865 635 www.tel-uk.com E: sales@tel-uk.com...

Table of Contents