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(2/ 0) 190-A-000098 Rev. A
6.0 CONFIGURATION
All ADTECH units are factory calibrated per sales order
instructions. Usually, a complete recalibration is not required
unless you want to change input type, output type, or the
range of the unit. A calibration sticker located on the unit
identifies the model, calibration and options present.
NOTE: For recalibration to the existing range proceed to
section 6.1; for new input or output range proceedas follows.
A. Remove power from the unit. Remove the right cover to
expose the 8 position switch and Jumper J1 on the input
PCB (just above the potentiometers).
B. Set output configuration jumpers per table 1 in section
8.0.
C. Set switch 3 position 1 forupscale or downscaleburnout.
Setswitch3position2toLinearizedornon-linearizedper
table 2, section 8.0. Re-apply power to the unit.
D. Set switch 3 position 3 to the on position and adjust the
output ZERO potentiometer for the proper output.
E. Set switch 3 position 3 to off and position 4 to on. Adjust
the output SPAN potentiometer for full scale output.
Repeat steps D and E until you reach the desired
accuracy. (Note: you can check the midscale value by
depressing switch 3 positions 3 and 4 simultaneously.)
F. Return switch 3 positions 3 and 4 to the off position, and
proceed with section 6.1 below to finish the calibration.
6.1 CALIBRATION
A. Apply the zero input value at the input terminals of the
unit. Depress and hold the ZERO input calibration push
button switch until the ZERO status led flashes. You
have just set the input zero, and the output should be at
your zero value after a short time delay.
B. Apply the full scale input value at the input terminals.
Depressandholdthe SPAN inputcalibration pushbutton
switch until the SPAN status led flashes. You have just
set the full scale value and the output should be at full
scale after a short delay.
C. Calibration is complete. Check the calibration with
various input values and verify the output values.
7.0 FIELD TROUBLE SHOOTING GUIDE
This sectionoffers a simple, first level trouble-shooting aid for
an apparent instrument malfunction.
SYMPTOM CORRECTIVE ACTION
No Output 1. Check the input and output
connections carefully.
2. Check that the power supply
polarity is correct and that the
output loop power is present on
the indicated terminals.
3. Check that the input source(s) is
correct and that it changes
magnitude between zero and full
scale values when so adjusted.
4. Make sure the output loop is
complete and that the correct
meter range is selected.
All external checks are complete.
Problem seems to be internal.
The instrument is made of small components.
Troubleshooting beyond the above may be difficult with out
special equipment. We do not recommend attempting repair
of the unit in the field. ADTECH offers a very responsive
repair policy. Contact theADTECH factory for information on
repair and return at 716-383-8280 or 716-383-8386(FAX).
