Start up – RKI Instruments Pioneer 4W User Manual
Page 84
Oxygen Transmitter • 8
Pioneer Operator’s Manual (PRELIMINARY)
Start Up
This section describes procedures to start up the oxygen transmitter and place the
transmitter into normal operation.
Introducing Incoming Power
1.
Complete the installation procedures described earlier in this insert.
2.
Verify that the power wiring is correct and secure (see Chapter 3, Installation and
Start Up).
3.
Turn on or plug in the incoming power at the power source end, then place the
Pioneer’s power switch in the ON position.
4.
Verify that the main PILOT light is on and the pilot light for each analyzer card is
flashing.
Setting the Normal Signal
CAUTION:
If you suspect the monitoring environment is not of normal oxygen content (20.9%),
use the calibration kit and the zero air calibration cylinder to introduce “fresh air” to
the sensor and verify an accurate normal setting.
1.
Verify that the transmitter is in a fresh air environment (environment known to be of
normal oxygen content).
2.
Unscrew and remove the
amplifier
junction box cover from the junction box.
3.
Set a voltmeter to measure in the millivolt (mV) range.
4.
Plug the voltmeter leads into the test points on the amplifier. Plug the positive lead
into the test point labeled
TP+
; plug the negative lead into the test point labeled
TP-
.
5.
Verify a voltmeter reading of 434.4 mV (±2 mV).
6.
If necessary, use a flat-blade screwdriver to adjust the span potentiometer until the
voltmeter reading is 434.4 mV (±2 mV).
7.
Secure the junction box cover to the junction box.