BA02191C SS2100 TDLAS H
2
S Gas Analyzer
Endress+Hauser 3-15
3. Continue pressing the * key until the 4-20 mA Test parameter
displays.
4. Enter the desired percentage of full scale and press *.
a. Set 4-20 mA Test = 0; this displays the 4 mA on the AO circuit
when #5 (Mode 5) is pressed.
b. Set 4-20 mA Test = 50; this displays the 12 mA on the AO circuit
when #5 is pressed.
c. Set 4-20 mA Test = 100; this displays the 20 mA on the AO
circuit when #5 is pressed.
Testing and adjusting the 4-20 mA zero and span
1. Press #5 (Mode 5) and note the 4-20 mA Test parameter setting
displayed on the analyzer.
2. Adjust the potentiometers on the end of the board to change the
zero and span readings. Refer to Figure 3–7 on page 3–14.
3. Press # and 1 to return to Normal Mode.
For more information on the analyzer programming, refer to the Description of
Device Parameters.
Connecting the Gas Lines
Once you have verified that the analyzer is functional and that the analyzer
circuit is de-energized, you are ready to connect the sample supply, sample
bypass return, sample return, pressure relief vent (if applicable), validation
source (if applicable), purge supply (if applicable) and instrument air supply
(if applicable) gas lines. Consult the layout and flow diagrams in Appendix A for
guidance. All work must be performed by technicians qualified in pneumatic
tubing.
<SET PARAMETER MODE>
AO 4-20 mA Test
0.00000
Enter a value (%)
<TEST 4-20MA MODE>
4-20 mA output is at
0.0% or 4.0mA
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