The Analog Output Trim Menu; Analog Output Trim Menu Structure; Current Output Trim (Io1 & Io2); Pgen Output Trim (Single Channel Model Only) - Siemens SITRANS F FUH1010 Series 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 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 & Io2)
(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 supply and return term-
inals of the current output under test.
Move the highlight to the port to be tested, press
to Trim @ 4mA.
Press . This triggers a 4.00 mA pop-up window. The multimeter should now be
ENT
reading 4.00 mA.
If the multimeter reading does not match, use PC numeric keys or Magnetic Wand to
type in the multi-meter reading.
Press ENT to register setting. This adjusts the meter's DAC (digital-to-analog con-
verter) so that a 4mA output corresponds with 4mA on the multimeter.
Re-check the multimeter to make sure that it is now reading 4mA.
4.5.3 PGEN OUTPUT TRIM (Single Channel models only)
(Note: Can be trimmed to within 1.25 Hz of nominal.)
To calibrate a pulse rate output (Pgen1):
Connect a frequency counter to the supply and return terminals of the pulse rate
output under test.
Move the highlight to the port to be tested
to move the cursor to Trim @ 1kHz.
ENT
Press . This triggers a 1 kHz pop-up window. The frequency counter should now
be reading 1 kHz.
If the frequency counter reading does not match, use PC numeric keys or Magnetic
Siemens Hardware
Wand to enter the frequency counter reading.

ANALOG OUTPUT TRIM MENU STRUCTURE

Io1
Io2
Pgen
Operate
Trim @ 4mA
Indicated mA = x.xx
Operate
Trim @ 4mA
Indicated mA = x.xx
Operate (Single Channel only)
Trim @ 1kHz
Indicated Hz = xxxx
, then press
, press the
4-9
1010BXFM-3
to move the cursor
, then press