42
2.12 Calibration
Calibration should be carried out if any channel fails a bump test or if T4 has exceeded its calibration
due date.
A calibration can be performed on T4 in one of the following ways:
• Via T4 menu and utilizing the calibration/bump test plate (see Section 2.8.6)
• Via Portables Pro 2.0 utilizing the calibration/bump test plate
• Via the I-Test gas station where all testing is fully automated.
I-Test is an intelligent stand alone gas test and calibration solution, suitable for small and large eet
users alike, I-Test offers simple fully managed testing with data capture as well as the ability to
update congurations.
i
I-Test is suitable for regular periodic calibrations but Portables Pro 2.0 must be utilised for
calibration when sensors or PCB’s have been replaced.
Please refer to I-Test User & Operator Manual M070002.
T4 calibration due dates are automatically updated upon a successful calibration; the factory default
interval is set at 180 days.
Calibration should be undertaken with the appropriate Crowcon supplied gas cylinder or equivalent.
i
The ammable sensor should always be calibrated with methane gas.
If the calibration fails this may be indicative of a more serious sensor issue, including the need to
replace sensors. The T4 should then be serviced.
2.13 New sensor calibration/service
Servicing or the tment of a new sensor can only be undertaken by a suitably trained technician
using Portables Pro 2.0 software and the appropriate gas.
In addition calibration should be performed as required by local or organisational regulations. In
the absence of suitable evidence, such as a eld assessment by a competent person, Crowcon
recommend regular service and calibration every 6 months.
To Next Page
Loading...
