5-8 | Model 933S UV Analyzer
Analog Output Calibration
Current Calibration
The current outputs are calibrated at the factory. If a current output
module is replaced or added, calibrate that output. This is done from the
Output Setup
dialog box. Calibration of a current output is performed by
entering the measured low-scale (Zero) and full-scale (Span) signals for
each output (see Figure 5-5). These values are used to offset the output to
the correct values.
NOTE
When performing current or voltage calibration, do not enable (check)
Limit 4...20 mA
after calibration is complete.
To calibrate the current outputs:
1. Measure the Zero (low-scale) signal of each output:
a. Click the
Zero Cal
button to change its status to On. The status of
Normal
,
Mid-Scale
, and
Span Cal
should be Off.
b. Connect a current meter to
Pins 1
and
2
(at
J109
on the
Customer
I/O
board) and measure the current of Output 1. Under
Current
Outputs
, enter the value next to
Zero (mA)
, under the first column
(Output
1
). Place a 250 Ohm resistor in series of the multi-meter for
accurate calibration.
Repeat this step for Output 2 (
Pins 3
and
4
), Output 3 (
Pins 5
and
6
),
and Output 4 (
Pins 7
and
8
), recording the value for each output in
the corresponding field.
Figure 5-5.
Output Setup dialog
box.
Setup (tab)
Output
Summary of Contents for 933S
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Page 52: ...3 6 Model 933S UV Analyzer Figure 3 1 Analyzer backpan dimensions European...
Page 91: ...Installation and Start Up 3 45 Figure 3 24 Column Profile...
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Page 190: ...6 14 Model 933S UV Analyzer Figure 6 3 1 Standard Range Cell 40 cm or smaller...
Page 191: ...Maintenance and Troubleshooting 6 15 Figure 6 3 2 Low Range White Cell 81 2 cm P N 100 1780 1A...
Page 197: ...Maintenance and Troubleshooting 6 21 Figure 6 4 Column Block assembly...
Page 246: ...6 70 Model 933S UV Analyzer Figure 6 18 Microcontroller board P N 100 1781 SW400...
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Page 272: ...A 8 Model 933S UV Analyzer Lower Enclosure Layout WX 14838...
Page 274: ...A 10 Model 933S UV Analyzer RS 232 Communications Cable Connections 300 9480...
Page 279: ...Appendix A Drawings A 15 Optical Bench Board P N 100 1662...
Page 280: ...A 16 Model 933S UV Analyzer PMT Buffer Board 100 0140...
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