78
8014084/ZWT7/V3-1/2020-06 | SICK
O P E R A T I N G I N S T R U C T I O N S | TRANSIC111LP
Subject to change without notice
6
ADJUSTMENT
6.4
TRANSIC111LP adjustment for ambient gas measurement
6.4.1
Setting up the gas supply
The calibration and adjustment gas must be in both the probe and the enclosure of the
measuring device for this TRANSIC111LP version.
This requirement is most easily fulfilled by performing calibration and adjustment with gas
that has an O
2
concentration close to normal ambient air O
2
concentrations (20.95% O
2
).
When using calibration or adjustment gas concentrations significantly different from
ambient air, it should be noted that:
– For calibration (test of device), it is possible to correct the TRANSIC121LP measured
value for the error caused by the calibration configuration.
.
Take the required measures for adjustment so that the adjustment gas concentration is
also present in the measuring device enclosure.
Using ambient air
For further information on the calibration method,
see “Using ambient air”, page 79
Using bottled calibration and adjustment gas
1
Ensure the O-ring is seated securely in the groove.
2
Insert the probe into the sample gas cell.
3
Push it against the sample gas cell and turn it clockwise 45°,
TRANSIC111LP probe in the sample gas cell”, page 66
4
The gas inlets of the sample gas cell are fitted with gas connections for Ø 6 mm tubes,
see “Installing the sample gas line”, page 23
. A 6 mm
↔
1/4‘‘ adapter is delivered.
5
Let the gas flow out without hindrance. This avoids an overpressure in the chamber.
The ambient gas measurement version of TRANSIC111LP requires the adjustment gas
concentration to be present in the probe and inside the measuring device enclosure. In the
configuration described above, the gas in the measuring device enclosure would be normal
ambient air so calibration/adjustment gas O
2
concentration must be at or close to ambient
air (20.95 O
2
).
This Section solely describes the adjustment and calibration of the TRANSIC111LP
device in the version for ambient gas measurement.
Read the complete Section 6 for comprehensive information on the calibration and
adjustment procedure for the TRANSIC111LP for ambient gas measurement.
NOTICE:
Particular care for calibration and adjustment
With the ambient measurement configuration, it is assumed that the probe and
measuring device enclosure are installed in an environment with a varying O
2
concentration.
This presents special demands on calibration and adjustment of the TRANSIC111LP
version for ambient gas measurement because the calibration and adjustment gas
should be present in both the probe and the measuring device enclosure. SICK
recommends the following procedure for a simpler approach:
– For calibration (test of device): Use normal ambient air or 21.0% O
2
calibration gas,
.
– For adjustment: Use one-point adjustment with 21.0% O2 adjustment gas and
sample gas cell,
see “Information on adjustment”, page 80
.
