Watts HF scientific AccUView LED Owner's Manual
Uv transmittance & absorbance monitor
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- Instruction for operation and maintenance (20 pages)
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Summary of Contents for Watts HF scientific AccUView LED
- Page 1 OWNER’S MANUAL AccUView LED UV Transmittance & Absorbance Monitor HF scientific 3170 Old Metro Parkway Ft. Myers, FL 33916 Phone: 239-337-2116 Fax: 239-332-7643 Toll Free: 888-203-7248 E-Mail: HF.Info@Wattswater.com Website: www.hfscientific.com Catalog No. 29173 (1/2020) Rev 2...
- Page 3 28041 & 28042 (with Flow Switch) I, the undersigned, hereby declare that the equipment specified above conforms to the above Directives and Standards. Place: Fort Myers, Florida USA (Signature) Date: 18 August, 2015 Mike Trammell, Vice President of Product Development, Watts Water Quality...
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Page 5: Table Of Contents
Table of Contents Section Page Specifications .....................1 Overview ......................2 Unpacking and Inspection of the Instrument and Accessories .....2 The Display ...................3 The Touch Pad ..................3 Vapor Purge ...................4 Safety .........................4 Installation and Commissioning ...............5 Mounting and Site Selection ..............5 Plumbing ....................6 3.2.1 Pressurized Systems ..............7 3.2.2 Drain Vent ..................7 Electrical Connections ................7... - Page 6 Table of Contents (continued) Section Page Configuring the Alarms ...............19 7.4.1 Alarm 1 ..................19 7.4.2 Alarm 2 ...................20 Enabling the Security Access...............21 Extended Settings.................21 Units ....................21 Speed of Response ................22 LCD Backlight Brightness ..............22 7.10 Ultrasonic Cleaning ................22 7.11 RS-485 Parameter - Bits ..............23 7.12 RS-485 Parameter - Parity ..............23 7.13...
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Page 7: Specifications
Specifications Measurement Range 0 – 100.0 %T 0 – 2.0 ABS Repeatability ± 1.0 %T ± 0.002 ABS Resolution 0.1 % T 0.0004 ABS Accuracy ± 2.0 % T ± 0.008 ABS Response Time Adjustable Averaging Path Length 22 mm(Readings corrected to 10 mm) Display Multi-Line Liquid Crystal Backlit Display Alarms... -
Page 8: Overview
Overview The AccUView LED process transmittance monitor allows for the UV transmittance or absorbance measurement of process water on-line. A unique feature of the instrument is the ultrasonic cleaning. Refer to section 8.2 for more information. 1.1 Unpacking and Inspection of the Instrument and Accessories The table below indicates the items in the monitor shipment. -
Page 9: The Display
1.2 The Display Figure 1 illustrates all the items that can appear on the display. The upper row of the display (1) is used for reporting the % T levels and to provide user guidance in the customer setting routine. The lower row of the display (2) is used to communicate error messages and provide user guidance. -
Page 10: Vapor Purge
1.4 Vapor Purge The AccUView LED is equipped with a continuous vapor purge system. A replaceable desiccant pouch in the lower portion of the instrument dries the air. System heat is used to warm the air. A fan inside the instrument continuously circulates heated dry air around the optical well and the flow through cuvette. -
Page 11: Installation And Commissioning
3.0 Installation and Commissioning Prior to use for the first time, the supplied desiccant pouch will need to be installed. Refer to section 9.2 Replacing or Installing the Desiccant Pouch. 3.1 Mounting & Site Selection The instrument is designed for wall mounting. For ease of service there should be about 20 cm (8”) free area above the instrument;... -
Page 12: Plumbing
3.2 Plumbing The recommended plumbing for the instrument is shown in Figure 4. The instrument is designed to require very little head pressure to operate; around 6.9kPa (1 PSI). Flow requirements are 100ml/min. – 1.5 liter/min. (0.026-0.40Gal/min). The pressure regulator will allow for a maximum pressure of 1380kPa (200 PSI.). -
Page 13: Pressurized Systems
3.2.1 Pressurized Systems: A standard feature of the AccUView LED is a pressure regulator. The regulator is rated for use up to 1380 kPa (200 PSI) and will lower the pressure down to a pressure more suitable for use in the AccUView LED. If inlet pressures can exceed 325 kPa (47 PSI) use appropriate tubing to connect to the AccUView LED. -
Page 14: Power
Figure 5: Electrical Connections for the Instrument 3.3.1 Power: The instrument is equipped with a 100-240 VAC, 47-63 Hz switching power supply; please verify that the line voltage falls within these specifications. It is recommended that a circuit breaker be placed prior to the power connection to allow for service. -
Page 15: Operation
Operation This process monitor allows for the measurement of the transmittance of process water on- line. Process water is usually reported in units of %T. Readings above 102 %T are indicated by a flashing display. Readings above 100 %T indicate that the current sample is better than the calibration water. -
Page 16: Security Access Feature
4.3 Security Access Feature The instrument is equipped with a security access code feature that can be activated in the configuration mode. If the security feature is enabled, the screen shown in the illustration below will appear when the MODE/EXIT button is pressed. The security code (333) must be entered to gain access to CAL or CONFIG menus. -
Page 17: Instrument Calibration
Instrument Calibration The instrument was calibrated and tested prior to leaving the factory. Therefore, it is possible to use the instrument directly out of the box. Under normal conditions, re- calibration is recommended at least once every month. To get the greatest accuracy, you may need to calibrate once per week. -
Page 18: Abs Calibration
5.2 ABS Calibration Before starting the calibration procedure, be sure to turn off the instrument’s ultrasonic cleaning option. See section 7.10 for instructions. 1. Select the calibration function of the instrument by pressing the MODE/EXIT button once. The arrow beside CAL will be illuminated on the display. The lower display shows alternating 0 (indicating that the 0.000ABS standard is requested) and ↵. -
Page 19: Calibration Error
5.3 Calibration Error If the screen shown below is displayed after the 100%T or 0 ABS calibration, the internal diagnostics have determined that the calibration fluid requires replacement or the flow through cuvette requires replacement. Check, the calibration fluid & cuvette, then recalibrate or restore the factory calibration see 6.1 Restoring Factory Settings. -
Page 20: Restore Factory Settings
Restore Factory Settings. 6.1 Restoring Factory Settings If the instrument is unable to perform a calibration due to a low lamp output, bad calibration standard or a dirty cuvette, the instrument will display CAL on the lower row of the display and Err on the upper row. The operator has two choices to correct this problem or restore the factory calibration. -
Page 21: Instrument Configuration (Config Mode)
Instrument Configuration (CONFIG mode) The instrument has been designed to provide the ability to customize the instrument according to needs at any time during normal operation. This mode has been split into sub-menus to facilitate instrument configuration. This section describes how to use each of the sub-menus to configure the instrument. -
Page 22: Setting The 4 Ma Level
7.2.1 Setting the 4 mA Level Select the %T or ABS level to assign to the 4MA using the and buttons. The factory setting is 90%T or. Once the desired level has been set, press the ↵ button to accept it. The factory default setting for %T is 90%T and the for ABS is 0 The 4MA cannot be set higher than the 20 MA level. -
Page 23: Configuring The Rs-485 Port
7.3 Configuring the RS–485 Port If the instrument is wired for this option, and the I/O selection is changed to 485, prompts will appear for setting the baud rate and the address. 7.3.1 Setting the Baud rate Select the correct baud rate (1200, 2400, 4800, 9600, or 19200) for operation of the I/O port by pressing the ... -
Page 24: Configuring The Alarms
7.4 Configuring the Alarms Two relays are provided that are designed to operate as two independent programmable alarms. Three types of information must be input to fully program each alarm: 1. The alarm function (HI, LO, OFF or Error) 2. The alarm set point (level at which the alarm activates) 3. -
Page 25: Alarm 2
Alarm 1 Set Point: This prompt is used to select the set point for this alarm; this is indicated by “S/P” shown on the lower row of the display. Select the desired alarm level by using the and buttons. Once the desired set point has been set, press the ↵ button to accept it. -
Page 26: Enabling The Security Access
7.5 Enabling the Security Access The instrument is equipped with a security access. If this option is turned on, the user is required to input the access code into the instrument to get to any mode other than AUTO. The only code is 333. This code may not be changed. See section 4.3 for more information on this security feature. -
Page 27: Speed Of Response
7.8 Speed of Response The speed of response for both displayed and output values can be adjusted in this menu. The factory setting is 3 however, 10 response speeds are available. Select the desired speed of response using the and buttons. Press the ↵ button to accept it. Please note that the response is simply an average of the previous readings combined with the current reading. -
Page 28: Rs-485 Parameter - Bits
7.11 RS-485 Parameter - Bits This is the first of three menus to setup the RS-485 parameters. These menus will only appear if the RS-485 mode is selected. Selections are 7 or 8 bits. The factory selection is 8 bits. Make a selection using the and buttons then press the ↵ button. 7.12 RS-485 Parameter –... -
Page 29: Desiccant Alarm
7.15 Desiccant Alarm When the humidity detector in the AccUView LED indicates that the internal environment is close to the point where humidity could cause condensation, the instrument will display DESC as a warning. If desired, a desiccant warning can activate the alarms and send the 4-20mA to 2mA. -
Page 30: Saving Configuration Settings
7.18 Saving Configuration Settings ↵ If extended settings is set to OFF, pressing the button will save all settings and the AccUView LED will automatically return to the normal AUTO mode of the instrument. If extended settings is set to On, after the last menu of the extended settings, pressing the ↵... -
Page 31: Additional Features And Options
Additional Features and Options 8.1 Backlit LCD The backlit LCD allows for easier readability of the LCD display in low light or no light conditions. The backlight is intended for continuous operation. The brightness is adjustable from a menu in the CONFIG mode. 8.2 Ultrasonic Cleaning This option is used to continuously clean the flow through cuvette. -
Page 32: Simple Communication
8.3.2 Simple Communication The AccUView LED can provide basic communications over simple programs such as the Hilgraeve HyperTerminal that is included with most Microsoft Windows packages. The user could also use Visual Basic or other programs. The default communication parameters are 8 bits, no parity and 1 stop bit. These parameters may be changed in the extended CONFIG menu. -
Page 33: Routine Maintenance
Routine Maintenance 9.1 Cleaning the Flow Through Cuvette Measurement cuvettes used for the flow through should be clean and free of marks or scratches. Cleaning is accomplished by cleaning the interior and exterior with a detergent solution and then rinsing several times with distilled or de-ionized water. The cuvette can be replaced by first shutting off the flow using the provided shutoff clamp;... -
Page 34: Troubleshooting
10.0 Troubleshooting 10.1 AccUView LED Fault Detection The AccUView LED performs continuous diagnostic monitoring. In the AccUView LED there are three levels of fault detection; warnings, errors and failures. Any faults are displayed in a queue form in the bottom row of the LCD. A warning is simply a screen indication of a problem. -
Page 35: Diagnostic Chart
10.3 Diagnostic Chart Symptom Cause Cure Lower display shows MA 4-20 mA loop open Check wiring. See sections 3.3.4 and 7.2 Lower display shows DESC Desiccant pouch bad Change desiccant pouch. section 9.2 Lower display shows LAMP LED failed Replace lamp. Refer to section 9.3 Lower display shows FLOW Sample flow has stopped Restore flow. -
Page 36: Accessories And Replacement Parts List
11.0 Accessories and Replacement Parts List The items shown below are recommended accessories and replacement parts. Accessory Catalog Number Replacement Desiccant Pouch 21555R 100 % T Calibration Solution - 500 ml 19323 Replacement Electronics Service Module Contact Factory Replacement Quartz Cuvette with Ultrasonic Transducer 24232S Operating Manual, AccUView LED 29173... -
Page 37: Warranty
12.0 Warranty HF scientific, as vendor, warrants to the original purchaser of this instrument that it will be free of defects in material and workmanship, in normal use and service, for a period of one year from date of delivery to the original purchaser. HF scientific’s obligation under this warranty is limited to replacing, at its factory, the instrument or any part thereof.