Teledyne 3220 - Multi-channel oxygen monitor system - Manual (Page 45)

Oxygen Monitor System 5 Failure and Error Codes
Teledyne Analytical Instruments 31
4. (B) Disconnect the zero gas from the sensor.
5. (
A
) If necessary, proceed to the previous or next procedure. Otherwise, press
RUN to place the instrument in the analysis mode.
4.4.2 Span Calibrating a Channel Module
NOTE: To accomplish the following task, two operators
are needed. Operator one at the Control Unit and
operator two at the probe. Both operators are involved
in the calibration process. They must be in constant
communication, by phone or other means.
(A) = Operator One at the Control Unit
(B) = Operator Two at the probe
1. (A) At the Front Panel of the Channel Module to be calibrated:
a. Press
SELECT.
b. Use the right or left arrow key to highlight the SPAN option.
c. Press
ENTER.
Result: Alarms are deactivated and the SPAN display option flashes.
2. (B) Introduce span gas into sensor. Select span gas that is 80 to 90 % of the
upper limit of the range of interest.
3. (A) After the reading stabilizes:
a. Press the up or down arrow key until the display reads the value that
corresponds to the % O
2
of the certified span gas used.
b. Press ENTER.
4. (B) Disconnect the span gas from the sensor.
5. (A) If necessary, proceed to the previous or next procedure. Otherwise, press
RUN to place the instrument in the analyze mode.
4.4.5 Using the “1MAN” Calibration Option
The two following calibration procedure can be performed by one
technician.
4.4.5.1 Z ERO AND S PAN C ALIBRATING A C HANNEL M ODULE
1. Start by flowing gas that is less than 1% O2 to the
probe. Then, at the Front Panel of the Channel Module