OPERATION & MAINTENANCE MANUAL TMS2000/3000
TMS Operations and Maintenance Manual.docx February 12, 2018
PAGE 82
APPENDIX E – TMS2000A2x 2-412 and 2-501 Calibration Procedure
The following procedure describes the simple process of calibrating either the Pneumercator 2-412 vertical lift level
transmitter or 2-501 pivot-arm level transmitter with both the TMS2000A21 2-level transmitter/2 leak/point-level
sensor and the TMS2000A22 4-level transmitter/4 leak/point-level sensor Tank Management System configurations.
Both transmitter types are three-wire, with RED-to-BLACK corresponding to full-scale resistance, and WHITE being
the wiper or varying resistance corresponding to level change. This procedure can also be used with some third-party
resistive level transmitters. Consult Pneumercator Technical Support at (800) 209-7858 for assistance in determining
if your level transmitter is compatible.
1) Use XMTR SEL to select level transmitter to be calibrated. Each press and release of XMTR SEL will
advance to next transmitter and will be indicated by the corresponding LED.
2) Position level transmitter float to the “empty” position, then press ZERO. Corresponding LED will blink, then
return to “steady on”. If the LED continues to blink for more than 10 seconds, float is either not positioned at
“empty”, or there may be a problem with transmitter or associated wiring. Confirm proper float position and
again press ZERO. If problem persists, refer to Pneumercator E700-1/LDE700 Instruction Manual, pages 46
and 47, “Testing the Tank Sensor” for troubleshooting guidance, or contact Tech Support at (800) 209-7858.
3) Position level transmitter float to the “full” position, then press SPAN. Corresponding LED will blink, then
return to “steady on”. If the LED continues to blink for more than 10 seconds, float is either not positioned at
“full”, or there may be a problem with transmitter or associated wiring. Confirm proper float position and again
press SPAN. If problem persists, refer to Pneumercator E700-1/LDE700 Instruction Manual, pages 46 and
47, “Testing the Tank Sensor” for troubleshooting guidance, or contact Tech Support at (800) 209-7858.
4) Repeat steps 1 thru 3 for all desired transmitters. The system will automatically exit calibration mode after
several minutes of inactivity on the XMTR SEL, ZERO and SPAN pushbuttons. Simply press the XMTR SEL
pushbutton to re-enter calibration mode. Once calibration is completed, calibration data is automatically
stored in non-volatile memory on the Transmitter/Leak Sensor Interface Card. Calibration data will remain
intact, even after extended power loss to the system(years!), and should not need to be repeated unless
either a transmitter or interface card is replaced.
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