The Analog Output Trim Menu; Analog Output Trim Menu Structure; Current Output Trim (Io1 And Io2); Voltage Output Trim (Vo1 And Vo2) - Siemens SITRANS F Operating Instructions Manual

Section 4

4.5.1 THE ANALOG OUTPUT TRIM MENU

Analog Output Trim allows you to fine-tune the meter's analog voltage and current outputs using a
multimeter connected to the output under test. In addition, you can use a frequency counter to fine-tune
the meter's pulse rate output.
NOTE: The current, voltage, and Pgen trimming will be limited by the 12-bit resolution of the
meter's D/A Convertor (DAC).
To access the [Analog Output Trim] menu press
Analog Output Trim
4.5.2 CURRENT OUTPUT TRIM (Io1 and Io2) Caution: See drawing 1010P-7.
(Note: Can be trimmed to within .005 mA of nominal)
To calibrate a current output (Io1 or Io2):
Set up the multimeter to read Amps, then connect it to the Io and Io return terminals of the cur-
rent output under test. (Note: Power must be provided to activate Io output.)
Move the highlight to the port to be tested, press
Trim @ 4mA.
ENT
Press . This triggers a 4.00 mA pop-up window. The multimeter should now be reading
4.00 mA.
If the multimeter reading does not match, use the numeric keys to type in the multimeter read-
ing.
ENT
Press to register setting. This adjusts the meter's DAC (digital-to-analog converter) so
that a 4mA output corresponds with 4mA on the multimeter.
Recheck the multimeter to make sure that it is now reading 4mA.

4.5.3 VOLTAGE OUTPUT TRIM (Vo1 and Vo2)

(Note: Can be trimmed to within .0025 V of nominal.)
To calibrate a voltage output (Vo1 or Vo2):
Set up the multimeter to read volts, then connect it to the output and reference terminals of the
voltage output under test.
Move the highlight to the port to be tested
cursor to Trim @ 2V.
ENT
Press . This triggers a 2.00 Volts pop-up window. The multimeter should now be reading
2.00 Volts.

ANALOG OUTPUT TRIM MENU STRUCTURE

Trim Io1 (Io2)
Trim Vo1 (Vo2)
Trim Pgen1(Pgen2)
Operate
Trim @ 4mA
Operate
Trim @ 2V
Operate
Trim @ 1kHz
, then press
, press
4-9
1010PFM-3G
Indicated mA = x.xx
Indicated V = x.xx
Indicated Hz = xxxx
to move the cursor to
, then press to move the