© 2020 All rights reserved. Data subject to change without notice.
41
Rev. B | 2020.07
cGas Detector Analog Transmitter - Operation Manual
Same when flowing CO
2
calibration gas, flow for 4 minutes BEFORE you
enter the Calibrate Span menu.
9.1.2 Regulators & Flow
CO
2
and N
2
calibration gases should be flowed at 0.5 LPM. Fixed flow regulators
provide more accuracy.
9.1.3 Adapters
The proper calibration adapter should be utilized to allow the gas to properly
diffuse around the sensor. The calibration adapter plug for a cGas Detector with
an internal sensor without a splash guard is part number CET-7000-CAP. For a
cGas Detector with a splash guard, use part number CET-4700-SCC or use the
Cal Clip hands free adapter, part number CET-SGC.
9.1.4 Calibration Frequency
•
Follow local codes and regulations
• OHS applications: Once every 6 months (OHS: Occupational Health &
Safety)
• For best performance and to meet published specifications: once every
six months
NOTE:
A calibration label should be applied after every calibration to confirm
work performed and the date it was confirmed. If a controller is involved,
the alarm set points should be indicated on a label on the front door of the
enclosure so anyone working in the environment can be aware.
Equipment: Calibration Kit, Calibration gases
Users can order the calibration kit, calibration accessories and / or gases
from any CETCI authorized distributor or you can supply your own gas and
equipment as long as the gas meets the minimum specifications. CETCI does
not ship gas cylinders outside of Canada.