Seitron CHEMIST 600 - Page 66

66
K600000000SE 030804 011018
 Apply gas to the instrument and adjust the output pressure of the gas from the cylinder so that the flow meter
indicates a minimum flow of 0.5 l/m: this guarantees that the instrument is taking the exact amount of gas
required by the internal pump.
 The calibration will be possible only when the status is set to ‘----' (cells which never had an on-site calibration)
or 'inactive'.
 Enter the value of the concentration of the gas applied.
 The instrument measures the concentration of gas applied; wait at least 3 minutes to allow the reading to
stabilize. The reading is shown in line 'Gas measured'.
→
CALIBRATION EXAMPLE FOR TOXIC GAS CELL (CO EXAMPLE).
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1000
Elapsed time
00:00:00
Status
active
Calibrate
Ia
uA
0.17
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1000
Elapsed time
00:00:00
Status
active
Calibrate
Ia
uA
0.17
OK
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1000
Elapsed time
00:00:00
Status
not active
Calibrate
Ia
uA
0.17
OK
OK
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1000
Elapsed time
00:03:00
Status
not active
Calibrate
Ia
uA
0.17
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1000
Elapsed time
00:03:05
Status
not active
Calibrate
Ia
uA
0.17
OK
OK
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
0
Applied gas
ppm
1018
Elapsed time
00:03:08
Status
not active
Calibrate
Ia
uA
0.17
OK
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
990
Applied gas
ppm
1018
Elapsed time
00:03:40
Status
not active
Calibrate
Ia
uA
0.17
On site calibration
Sensor CO
15/01/14
10:00
Is
uA
2.22
Measured gas
ppm
990
Applied gas
ppm
1018
Elapsed time
00:00:00
Status
not active
Calibrate
Ia
uA
0.17
Zeroes the timer -
helps to keep under
control the time
elapsing during the
stabilization phase.