TSI Instruments SUREFLOW 8635-M Operation And Service Manual
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TSI Instruments SUREFLOW 8635-M Operation And Service Manual

TSI Instruments SUREFLOW 8635-M Operation And Service Manual

Room pressure monitor
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SUREFLOW™
ROOM PRESSURE MONITOR
MODELS 8635-M
OPERATION AND SERVICE MANUAL
P/N 1980272, REVISION E
FEBRUARY 2013

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  • Page 1 SUREFLOW™ ROOM PRESSURE MONITOR MODELS 8635-M OPERATION AND SERVICE MANUAL P/N 1980272, REVISION E FEBRUARY 2013...
  • Page 3 SUREFLOW™ ROOM PRESSURE MONITOR MODELS 8635-M OPERATION AND SERVICE MANUAL P/N 1980272, REVISION E FEBRUARY 2013 U.S. AND CANADA OTHER COUNTRIES Sales & Customer Service: Sales & Customer Service: (800) 874-2811/(651) 490-2811 (001 651) 490-2811 Fax: Fax: (651) 490-3824 (001 651) 490-3824 SHIP/MAIL TO: E-MAIL TSI Incorporated...
  • Page 4 Copyright  TSI Incorporated / 2000-2013 / All rights reserved. Part number 1980272, Revision E LIMITATION OF WARRANTY AND LIABILITY (effective June 2011) Seller warrants the goods sold hereunder, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for 24 months, or if less, the length of time specified in the operator's manual, from the date of shipment to the customer.

  • Page 5: Table Of Contents

    CONTENTS HOW TO USE THIS MANUAL ................... 1 PART ONE USER BASICS ................1 The Instrument ................1 Operator Panel ................3 Alarms ..................5 Before Calling TSI ................ 6 PART TWO TECHNICAL SECTION .............. 7 Software Programming ..............8 Menu and Menu Items ...............
  • Page 6 (This page intentionally left blank)

  • Page 7: How To Use This Manual

    PART ONE User Basics Reading product manuals should not be a difficult and time consuming process. This section provides a brief but thorough overview of the SureFlow product by maximizing information with minimal reading. These few pages explain the purpose (The Instrument), and the operation (Useful User Information, Digital Interface Module, Alarms) of the unit.
  • Page 8 compared to the hallway. This pressure differential forces air to flow from the hallway into the bathroom. The SureFlow device informs the laboratory users when the laboratory is under proper pressure, and provides alarms when the room pressure is inadequate. If the room pressure is in the safe range, a green light is on.

  • Page 9: Operator Panel

    Operator Panel The DIM in Figure 3 shows the location of the digital display, keypad and lights. An explanation of the operator panel follows the figure. Figure 3: SureFlow Monitor Operator Panel - Open Green / Red light The green light is on when all the conditions for proper room pressure are adequate. This light indicates the laboratory is operating safely.
  • Page 10 User Keys - Gray with Black Letters The four keys with black letters provide the user information without changing the operation or the function of the unit. TEST Key The TEST key initiates an instrument self-test. Pressing the TEST key activates a scrolling sequence on the display that shows the product model number, software version, and all set point and alarm values.

  • Page 11: Alarms

    / Keys The / keys are used to scroll through the menus, menu items, and through the range of item values that can be selected. Depending on the item type the values may be numerical, specific properties (on / off), or a bar graph. Alarms SureFlow monitor has visual (red light) and audible alarms to inform the user of changing conditions.

  • Page 12: Before Calling Tsi

    Before Calling TSI This manual should answer most questions and resolve most problems the user may encounter. If you need assistance or further explanation, contact your local TSI representative or TSI. TSI is committed to providing high quality products backed by outstanding service.

  • Page 13: Technical Section

    PART TWO Technical Section The SureFlow monitor is ready to use after being properly installed. The pressure sensor is factory calibrated prior to shipping, and should not need adjustment. The Digital Interface Module (DIM) is programmed with a default configuration that can be easily modified to fit your application.

  • Page 14: Software Programming

    Software Programming Programming the SureFlow monitor is quick and easy if the programming keys are understood, and the proper keystroke procedure is followed. The programming keys are defined first, followed by the required keystroke procedure. At the end of this section is a programming example.
  • Page 15 SELECT Key The SELECT key has three functions. 1. The SELECT key is used to gain access to specific menus. To access a menu, scroll through the menus (using arrow keys) and place the flashing cursor on the desired menu. Press the SELECT key to select the menu. The first line on the display will now be the selected menu, and the second line will show the first menu item.
  • Page 16 If more than one item is to be changed, skip steps 8 and 9 until all changes are complete. If more items in the same menu are to be changed, scroll to them after saving the data (step 7). If other menus need to be accessed, press the MENU key once to access list of menus.
  • Page 17 Three short beeps will sound HIGH ALARM indicating that the data is being Saving Data saved. Immediately after the data is saved, ALARM the SureFlow monitor will return to HIGH ALARM the menu level displaying the menu title on the top line of the display and the menu item on the bottom line (goes to step 3).

  • Page 18: Menu And Menu Items

    Menu and Menu Items The SureFlow monitor is a very versatile device which can be configured to meet your specific application. This section describes all of the menu items available to program and change (except diagnostics menu). Changing any item is accomplished by using the keypad, or if communications are installed through the RS-485 Communications port.
  • Page 19 ALARM CONFIGURE CALIBRATION INTERFACE DIAGNOSTICS LOW ALARM DISPLAY AVG SENSOR ZERO NET PROTOCOL SENSOR INPUT HIGH ALARM UNITS SENSOR SPAN NET ADDRESS SENSOR STAT REM LOW ALM DUCT AREA FLOW ZERO OUTPUT RANGE ANALOG OUT REM HIGH ALM FLO STA TYPE ELEVATION OUTPUT SIG SWITCH INPUT...
  • Page 20 ALARM MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE LOW ALARM The LOW ALARM item sets the low pressure alarm set point. A OFF, 0 to -0.19500 PRESSURE low alarm condition is defined as when the magnitude of the "H ALARM room pressure falls below or goes in the opposite direction of...
  • Page 21 ALARM MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE The MIN FLOW ALM item sets the duct’s flow alarm set point. A MINIMUM MIN FLOW FLOW ALARM minimum flow alarm is defined as when the duct flow is less Pressure based flow than the MIN FLOW ALM set point.
  • Page 22 ALARM MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE DOOR DELAY DOOR The DOOR DELAY item is an alarm delay used when the door 20 to 600 SECONDS DELAY will be open for an extended period of time. The DOOR DELAY SECONDS is usually set for a longer period of time than the ALARM DELAY.
  • Page 23 ALARM MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE END OF The END OF MENU item informs the user that the end of a MENU menu has been reached. The user can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.
  • Page 24 ALARM CONSTRAINTS (continued) The display can only show one alarm message. Therefore, the controller has an alarm priority system, with the highest priority alarm being displayed. If multiple alarms exist, the lower priority alarms will not display until after the highest priority alarm has been eliminated.
  • Page 25 CONFIGURE MENU MENU ITEM SOFTWARE NAME ITEM DESCRIPTION ITEM RANGE DEFAULT VALUE The DISPLAY AVG item selects the display’s averaging DISPLAY DISPLAY AVG 0.75, 1, 2, 3, 5, 20 seconds AVERAGE period. The display averaging period is the length of time the 10, 20 or 40 room pressure has been averaged before being displayed.
  • Page 26 CONFIGURE MENU MENU ITEM SOFTWARE NAME ITEM DESCRIPTION ITEM RANGE DEFAULT VALUE ROOM ROOM VOLUME The ROOM VOLUME item is used to input the volume of the 0 to 20,000 cubic VOLUME room. The room volume is required to calculate air changes feet per hour.
  • Page 27 CALIBRATION MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE SENSOR SENSOR The SENSOR ZERO item is used to calibrate the SureFlow NONE Unit is ZERO ZERO pressure sensor. factory calibrated. A sensor zero should be established prior to adjusting the No initial sensor span (see Calibration...
  • Page 28 CALIBRATION MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE ACCESS ACCESS The ACCESS CODE item selects whether an access code ON or OFF CODE CODE (pass code) is required to enter the menu. The ACCESS CODE item prevents unauthorized access to a menu. If the ACCESS CODE is ON a code is required before the menu can be entered.
  • Page 29 INTERFACE MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE NETWORK The NET PROTOCOL item selects the communications MODBUS MODBUS PROTOCOL PROTOCOL protocol used to interface with the building management system. CIMETRICS NETWORK The NET ADDRESS item is used to select the main network 1 to 247 ADDRESS ADDRESS...
  • Page 30 INTERFACE MENU MENU ITEM SOFTWARE ITEM DESCRIPTION ITEM RANGE DEFAULT NAME VALUE OUTPUT OUTPUT The OUTPUT SIG item selects the type of analog pressure 0 to 10 VDC or 0 to 10 VDC SIGNAL signal output. The analog output signal can either be 0 to 10 4 to 20 mA VDC or 4 to 20 mA.

  • Page 31: Calibration

    Calibration The calibration section explains how to calibrate the SureFlow pressure sensor, including setting the proper elevation, and how to zero a flow station. NOTE: The SureFlow pressure sensor is factory calibrated and normally does not need to be adjusted. However, inaccurate readings may be detected if pressure sensor is not installed correctly, or problems with the sensor exists.
  • Page 32 Sensor span NOTE: Always take a sensor zero prior to adjusting the sensor span. A smoke test and a comparison measurement by an air velocity meter are required to calibrate the pressure sensor. The air velocity meter only gives a velocity reading, so a smoke test must be performed to determine pressure direction.
  • Page 33 Linear flow station 1-5 VDC output Remove flow station from duct, or cutoff flow in duct. Flow station must have no flow going past sensor. Enter calibration menu. Access code is required. Select FLOW ZERO to take flow zero. Press SELECT key. Flow zero procedure, which takes 10 seconds, is automatic. Press SELECT key to save data.

  • Page 34: Maintenance And Repair Parts

    Maintenance and Repair Parts The Model 8635 SureFlow Room Pressure Monitor requires minimal maintenance. Periodic inspection of system components as well as an occasional pressure sensor cleaning are all that are needed to insure that the Model 8635 is operating properly. System Component Inspection It is recommended that the pressure sensor be periodically inspected for accumulation of contaminants.

  • Page 35: Troubleshooting Section

    Replacement Parts All components of the room pressure monitor are field replaceable. Contact TSI HVAC Control Products at (800) 874-2811 (U.S. and Canada) or (001 651) 490-2811 (other countries) or your nearest TSI Manufacturer's Representative for replacement part pricing and delivery. Part Number Description 800222...
  • Page 36 Confirming wiring is correct The most common problem with installed hardware equipment is incorrect wiring. This problem usually exists on initial installation, or when modifications to the system take place. The wiring should be very closely checked to verify it exactly matches the wiring diagram.
  • Page 37 NOTE: This test is only performed if analog output feature is being used. Enter ANALOG OUT menu item in diagnostics menu. A value between 0 and 255 will be displayed. Hook up a DC voltmeter to pins 9 and 10. Press the / keys to change output from 0 to 255.
  • Page 38 The ANALOG OUT item is used to vary the analog output from the SureFlow unit. When this item is entered, a number will be shown on the display indicating the last analog output value. The value displayed ranges from 0 to 255. The value 255 corresponds to the lowest voltage (current) output and 0 corresponds to the highest voltage (current) output.
  • Page 39 Access Code Menu Item - ACCESS CODE The ACCESS CODE item selects whether an access code (pass code) is required to enter the menu. The ACCESS CODE item prevents unauthorized access to a menu. If the ACCESS CODE is ON, code is required before the menu can be entered. Conversely, if the ACCESS CODE is OFF, no code is required to enter the menu.
  • Page 40 Troubleshooting Chart Symptom Possible Cause Corrective Action Display is blank. Fuse is blown. Measure voltage at pins 1 and 2 on DIM. The voltage should nominally be 24 to 30 VAC. If correct voltage is measured, internal DIM fuse is probably blown.
  • Page 41 Symptom Possible Cause Corrective Action Pressure sensor Problem with Check SENSOR STAT and confirm NORMAL is red LED is sensor (slow displayed. If ERROR is displayed, correct error. blinking (Figure uniform blink). Communication Unit is communicating with DIM. This is normal. (fast burst of non-uniform blinking).
  • Page 42 Symptom Possible Cause Corrective Action "DATA ERROR" DIM was hit by All data may be lost or changed. Review all flashing on electrical configuration parameters. DATA ERROR is removed display. disturbance. by pressing the RESET key. Displayed Exhaust or supply Check supply and exhaust flow for stability.

  • Page 43: Specifications

    Appendix A Specifications Room Pressure Module Display Range ..............-0.20000 to +0.20000 inches Resolution ............5% of reading Display Update ............. 0.5 sec Inputs Switch in ............... SPST (N.O.) Switch. Closing switch initiates condition. Flow in ..............0 to 5 VDC Outputs Low Alarm Range ..........
  • Page 44 (This page intentionally left blank) Appendix A...

  • Page 45: Wiring Information

    Appendix B Wiring Information Back Panel Wiring Input / Output / PIN # Communication Description 1, 2 Input 24 VAC to power Digital Interface Module (DIM) and sensor. NOTE: 24 VAC becomes polarized when connected to DIM. 3, 4 Output 24 VAC power for Pressure Sensor 5, 6 Input...
  • Page 46 Appendix B...

  • Page 47: Access Codes

    Appendix C Access Codes These are the access codes to the different menus of the SureFlow monitor. When an access code is required, pressing the following key sequence will provide access to the required menu. Key # Alarm Configure Calibration Interface Diagnostics TEST...
  • Page 48 (This page intentionally left blank) Appendix C...
  • Page 49 TSI Incorporated – Visit our website www.tsi.com for more information. Tel: +1 800 874 2811 India Tel: +91 80 67877200 Tel: +44 149 4 459200 China Tel: +86 10 8251 6588 France Tel: +33 4 91 11 87 64 Singapore Tel: +65 6595 6388 Germany Tel: +49 241 523030...

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