SICK TRANSIC Extractive TRANSIC151LP, Руководство по эксплуатации, Страница: 53 / 84

53 8015383/ZUQ7/V1-3/2020-06 | SICK O P E R A T I N G I N S T R U C T I O N S | TRANSIC151LP
Subject to change without notice
ADJUSTMENT
6
6.4 Adjustment for TRANSIC151LP ambient gas measurement
6.4.1 Setting up the gas supply
This TRANSIC151LP version requires the calibration and adjustment gas to be present in
the probe as well as inside the measuring device enclosure.
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 error in the measured value of
the measuring device 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 54 .
Using bottled gas and with sample gas cell
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°, see “Fastening the TRAN-
SIC151LP probe in the sample gas cell”, page 45 .
4
The gas inlets of the sample gas cell are fitted with 1/8" NPT or Swagelok gas
connections for Ø 6 mm tubes,
see “Installing the sample gas line”, page 24 .
5
Let the gas flow out without hindrance. This avoids an overpressure in the chamber.
0511-053
This Section solely describes the adjustment and calibration of the TRANSIC151LP
variant for ambient gas measurement.
Please read the complete Section 6 for comprehensive information on the calibration
and adjustment procedure for the TRANSIC151LP for ambient gas measurement.
With the ambient measurement configuration, it is assumed that the probe and
enclosure are installed in an environment with a varying O
2
concentration.
This presents special demands on calibration and adjustment of the TRANSIC151LP
variant for ambient gas measurement because the calibration and adjustment gas
should be present in both the probe and the enclosure. SICK recommends the following
procedure for a simpler approach:
– For calibration (test of TRANSIC151LP): Use normal ambient air or 21.0% O
2
calibration gas, see “Calibration”, page 54 .
– For adjustment: Use one-point adjustment with 21.0% O2 adjustment gas and
sample gas cell, see “Adjustment”, page 55 .
SICK recommends using ambient air for calibrating the TRANSIC151LP variant for ambi-
ent gas measurement. See
“Calibration”, page 48 .