Tamron MST2000 Apscal, Inputo Inputg, Outpto, Program Parameters, Description, FactoryDefault

PROGRAM PARAMETERS		OPERATION MANUAL
Parameter	Description	FactoryDefault

APSCAL

Absolute Pressure Span Calibration. The Absolute Pressure Span Calibration value is the 20 milliamp (span) count value from the external 4-20 milliamp ‘absolute pressure’ input channel. This parameter is used to calibrate the span point of the incoming 4-20 signal from the external absolute pressure device. To calibrate the span point of the incoming 4-20 signal, press the EDIT key. The screen will display IN20MA. Set the incoming signal for 20 milliamps (or connect an external 4-20 calibrator set for 20 milliamps) and press the EDIT key. The MST2000 will measure the external absolute pressure channel and save the new 20 milliamp reference to memory.

21000

If an external absolute pressure option is pre-installed and calibrated at the factory this will be custom set for that unit.

INPUTO

INPUTG

Input Offset. The Input Offset parameter allows the user to adjust (calibrate) the actual pressure (zero) value to the MST2000 displayed value. The input offset parameter is displayed and stored in memory as counts. After the EDIT key is pressed, the edit menu displays the real time pressure input. The user then uses the INC and DEC keys to adjust the desired offset. The pressure input must be connected to a pressure source and be at minimum range value (zero reference) during this adjustment. Use the MODE key to adjust the cursor position ( i.e.. x D1, x D10, x D100, etc.) to change the offset count by different increments. The available range is –50,000 to 50,000 counts (approximately +/- 20% adjustment of full scale). The factory default is as set by the factory during initial system calibration.

Input Gain. The Input Gain parameter allows the user to adjust the gain of the actual pressure (full scale) value to the MST2000 displayed value. The input gain parameter is displayed and stored in memory as a gain multiplier. After the EDIT key is pressed, the edit menu displays the real time pressure input. The user then uses the INC and DEC keys to adjust the desired gain. The pressure input must be connected to a pressure source and at maximum range value during this adjustment. Use the MODE key to adjust the cursor position (i.e.., x D1, x D01, x D001 etc.) to change the gain multiplier by different increments. The available range is 0.8000 to 1.2000 (approximately +/- 20 % adjustment of full scale). The factory default is as set by the factory during initial system calibration.

This is a factory default setting determined during calibration. It should be recorded by the user in the event it will be necessary to restore the Input Offset to the original value. This setting is also recorded on a label located under the cover of the MST2000.

This is a factory default setting determined during calibration. It should be recorded by the user in the event it will be necessary to restore the Input Gain to the original value. This setting is also recorded on a label located under the cover of the MST2000.

OUTPTO

Output Offset. The Output Offset parameter allows the user to adjust the actual 4 milliamp (zero) output value as referenced to the MST2000 displayed zero value. The output offset parameter is displayed and stored in memory as counts. After the EDIT key is pressed, the edit menu displays the actual count offset and the microprocessor sets the output to the 4.000 milliamp value. The user then presses the INC and DEC keys to adjust the desired milliamp offset. Use the MODE key to adjust the cursor position (i.e. x D1, x D10, x D100, etc.) to change the offset count by different increments. The available range is –1,000 to 10,000 counts (approximately 3.9 to 6.5 milliamp adjustment range). The factory default is as set by the factory during initial system calibration.

This is a factory default setting determined during calibration. It should be recorded by the user in the event it will be necessary to restore the Output Offset to the original value. This setting is also recorded on a label located under the cover of the MST2000.

Page 16 MST2000 Multivariable SMARTFLOW ® Transmitter Brandt Instruments, Inc.