Teledyne 3220 - Multi-channel oxygen monitor system User Manual

Page 44

5 Failure and Error Codes

Model 3220

Teledyne Analytical Instruments

“CF” sets the cell failure trigger point.

If “FS” is selected, the associated relay is in the Fail-safe Mode, i.e., the
relay is “normally energized”.
If “NFS” is selected, the associated relay is in the Non-Fail-safe Mode,
i.e., the relay is “normally de-energized”.
“L” or “H” selects whether an alarm is HIGH or LOW.
The LCD Display shows the % O2 in monitor (RUN) mode, alarm
settings during the configuration mode and calibration values during
SPAN and ZERO operations.

LCD Display—The LCD display shows the % O2 in monitor (RUN)
mode, alarm settings during configuration mode, and calibration values
during ZERO and SPAN operations.

4.4 Calibration Procedures

4.4.1 Zero Calibrating a Single Sensor 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 ZERO option.
c. Press

ENTER.

Result: Alarms are deactivated and the ZERO display option flashes.

2. (B) Introduce zero gas into the sensor.
3. (A) After the reading has stabilized:

a. Press the up or down arrow key until the display reads “0”.
b. Press ENTER.

NFS