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PROGRAM
tESt
EXIT ENTER
1
2.00
PROGRAM
SIM OOUtPUt
EXIT NEXT ENTER
MODEL 3081 pH/ORP SECTION 8.0
PROGRAMMING FOR pH MEASUREMENTS
8.9 GENERATING A TEST CURRENT
8.9.1 Purpose
This section describes how to generate output currents for testing recorders and data han-
dling systems.
8.9.2 What happens while the transmitter is generating a test current?
1. The output current goes to the programmed test value and remains there until the
TEST function is disabled.
2. The main display continues to show the pH of the process stream. The word HOLD
appears in the display.
3. The test current value supersedes both the HOLD value and the FAULT value.
4. If a fault occurs while the transmitter is generating the test current, the word fault
appears in the display and the display flashes.
8.9.3 Procedure
1. Press PROG on the infrared remote controller (IRC).
2. Press NEXT until the SIM OUtPUt sub-menu appears. Press ENTER .
3. The tESt prompt appears. Use the editing keys to change the number to the desired
value. The allowed values are between 3.80 mA and 22.00 mA.
4. Press ENTER to start the test current.
5. To end the test current, press EXIT .
6. Press EXIT to return to the process display.