Mil-Ram Technology, Inc. TA-2102 Instruction Manual Download Page 6 | Manualshive

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22May2002

Page

4

IV.

Transmitter Wiring:

The

smarter

transmitter is 2-wire loop powered and operates on 10-30 VDC. Make

connections as follows:

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Summary of Contents for TA-2102

Page 1: ...Hydrogen Cyanide HCN Hydrogen Fluoride HF Hydrogen Iodide HI Hydrogen Peroxide H2O2 Hydrogen Sulfide H2S Nitric Acid Vapors HNO3 Nitrogen Dioxide NO2 Oxygen O2 Ozone O3 Sulfur Dioxide Silicon Tetrafluoride SiF4 Sulfur Dioxide SO2 Sulfuric Acid Vapors H2SO4 Mil Ram Technology Inc no false alarms Arsine AsH3 Tungsten Hexafluoride WF6 Phosphine PH3 Tetrachlorosilane SiCl4 Diborane B2H6 Hydrazine N2H4...

Page 2: ...mitter Operation 5 A Main Information Mode 6 B Loop Test 9 VI Diagnostic Messages 11 VII Rain Splash RF Shield optional 12 IIX Sensor Calibration 13 A Zero Calibration 14 B Span Calibration 15 IX Off Site Sensor Calibration 16 X Self Calibration 17 XI Remaining Sensor Life 17 Installation Drawings Warranty ...

Page 3: ...window of explosion proof junction box no mechanical adjustments required LCD Display 12 character x 2 line display provides meter readings calculated values and diagnostic messages Life Remaining sensor life remaining based on calibration history life curve for sensor and electrical characteristics of sensor Peak Value 15 min TWA Number of days since last gas calibration Transmitter displays this...

Page 4: ...of junction box which houses the smarter electronics The sensor smarter electronics junction box assembly constitutes the transmitter Install transmitter as follows 1 Unscrew cover with glass window from junction box Junction Box with cover glass window removed Removal of LCD display main circuit board assembly from junction box Junction box with banana sockets ...

Page 5: ...cuit board at 9 pin brown connector marked SENSOR Seat the sensor connector fully to lock in place 4 Install LCD display main circuit board assembly in junction box by carefully aligning banana plugs on bottom of main circuit board with sockets in junction box Gently push directly above face plate screws until banana plugs seat fully in sockets 5 Replace cover on junction box 6 Mount junction box ...

Page 6: ...22May2002 Page 4 IV Transmitter Wiring The smarter transmitter is 2 wire loop powered and operates on 10 30 VDC Make connections as follows ...

Page 7: ...ction box The shield should be terminated at the controller signal common but left floating do not attach to anything inside the transmitter junction box to avoid ground loop interference Apply electrical tape to exposed shield inside junction box The smarter transmitter can be located up to several thousand feet max total loop resistance 500 ohms from the controller electronics using 18 AWG stand...

Page 8: ...pan Calibration mode and decrement span calibration gas concentration The DOWN switch is also used to exit Loop Test before generating any output RESET A magnetic switch used to reset Peak Value and escape Span Calibration mode without performing calibration A Main Information Mode The smarter transmitter displays the following parameters when the Information Mode is entered Peak Value Remaining S...

Page 9: ...s displayed the value can be reset by momentarily holding magnet directly over RESET switch A successful reset provides the following message on the LCD display Following Peak Value the LCD will automatically proceed to Remaining Sensor Life ...

Page 10: ...ge 8 Next the LCD will proceed to 15 Min TWA Time Weighted Average Next the LCD will proceed to Ambient Temperature After approximately 5 sec LCD display will return to normal operating mode to provide gas readings ...

Page 11: ...t in loop test whereby the transmitter outputs 4 8 12 16 20 mA on demand The generated output signal can be used to verify readings alarms at the Controller electronics and loop integrity To enter loop test hold magnet directly over RESET switch until LCD display shows ...

Page 12: ...tch until LCD display returns to normal operating mode To proceed withloop test hold magnet directly over UP switch until LCD display shows To incrementSignal Output hold magnet directly over UP switch until LCD Increments Output Value When Output reaches 20 mA the next increment will roll over to 4 mA ...

Page 13: ...s The 2 Wire smarter Transmitter does not provide local relay outputs However external relays are often used at the controller electronics to provide appropriate alarms at pre set alarm points The following definitions are provided for general information Non latching when alarm set point is reached and exceeded relay is activated open contacts close and closed contacts open When gas concentration...

Page 14: ...d the relay changes state VII Rain Splash RF Shield Optional A black anodized aluminum shield offers protection to the sensor from rain splashing radio frequency RF and mechanical shock The upper portion of the housing is provided with internal and external 3 4 NPT threads The external threads screw into the explosion proof junction box which houses the remote amplifier The sensor screws into the ...

Page 15: ...ance of the sensor and system Although the sensors are normally quite stable it is generally recommended that calibration be performed monthly in the interest of safety Sensor calibration is performed at the smarter transmitter using a gas sample of known concentration To calibrate the sensor follow the steps outlined below NOTE The sensors are factory calibrated with gas prior to delivery Field c...

Page 16: ...ntarily hold magnet over ZERO CAL switch until LCD display shows When zero calibration is complete the transmitter will return to normal operation to provide meter readings Note If ambient air is not known to be gas free apply zero air cylinder using calibration Cup ...

Page 17: ...an calibration mode without performing calibration momentarily hold Magnet directly overt RESET switch 2 Momentarily hold magnet directly over UP or Down switch to increment or decrement calibration gas concentration When proper gas concentration is displayed hold magnet directly over ENTER switch to advance to next display ...

Page 18: ...he transmitter will return to normal operation to provide meter readings Note during span calibration and for a period of 5 minutes after calibration the smarter transmitter outputs 4 0mA to prevent activation of alarms at the controller electronics 5 Remove calibration cup and allow sensor to recover LCD display will show recov ery of sensor to zero ...

Page 19: ...a field calibration is performed with a gas sample of known concentration the life curve is re extrapolated based on actual calibration data Note The self calibration feature is intended to supplement and not replace a regular calibration program using a certified gas sample of known concentration Although the sensors are normally quite stable it is generally recommended that calibration be perfor...

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Page 24: ...ith the corresponding instruction manuals and specifications This warranty indicates the full extent of our liability and we are not responsible for removal or replacement costs local repair costs transportation costs or contingent expenses incurred without our prior written approval Mil Ram Technology Inc s obligation under this warranty shall be limited to repairing or replacing and returning an...

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