Instruction manual

Instruction Manual
760006-A
September 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices 11-9
Model NGA 2000 Platform
Current output calibration…
Analog I/O Module Calibration
Procedure
Perform the Output signal zero and span
calibration procedures as follows:
1. Enter the Analog Output Parameters
menu by making selections in the
following path: Main Menu, Techni-
cal Level Configuration…, Diagnos-
tics…, [choose] Analog I/O
[module], Analog output module…
Analog output Parameters…
Select Voltage or current:
2. To perform both the zero and span
calibration procedures, the operator
must use output values obtained
from a calibrated digital voltmeter or
other sensing device connected to
the I/O Module output. The Meas-
ured values shown by the I/O mod-
ule itself are not accurate enough to
calibrate the output circuitry.
3. In the I/O Module Analog Output Di-
agnostics menu, choose Voltage
output calibration… or Current out-
put calibration… , depending on
output requirements.
4. Choose Test on the Set to test for
calibration: line.
5. If the operator is performing a Volt-
age Output Calibration, do steps 6
through 9. If the operator is per-
forming a Current Output Calibra-
tion, do steps 10 through 13.
6. Voltage calibration: perform the zero
calibration procedure first. Set the
Desired output voltage: to 0.
7. Observe and record the output
value.
IO module ID: