Teledyne 1220 - Multipoint flammable gas and vapor detection system - Manual (Page 37)

Multi-Channel Combustible Monitor Operation 4
4-9 Teledyne Analytical Instruments
4.4.3 Zero Calibrating a Dual 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 up or down arrow key to highlight the appropriate
sensor to be calibrated (S1 = Sensor 1 or S2 = Sensor 2).
c. Press ENTER.
d. Perform the procedure listed in Paragraph 4.4.1 beginning with
Step “1b” and then return here.
2. To calibrate the second sensor, perform this procedure again begin-
ning with Step “1b”.
4.4.4 Span Calibrating a Dual 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 up or down arrow key to highlight the appropriate
sensor to be calibrated (S1 = Sensor 1 or S2 = Sensor 2).
c. Press ENTER.
d. Perform the procedure listed in Paragraph 4.4.2 beginning with
Step “1b” and then return here.
2. To calibrate the second sensor, perform this procedure again begin-
ning with Step “1b”.