Seitron CHEMIST 600 - Page 172

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K600000000SE 030804 011018
9
Reconnect the sensor (See point 3).
10
To close the instrument logically reverse the procedure described in the section "Access to sensors in
positions S1 - S2 - S3 - S4" or "Access to sensors in positions S5 - S6".
8
Rotate the sensor clockwise until hearing a click (See point 4).
While rotating the sensor, take care not to exert any pressure onto the printed circuit
above: exert pressure onto the plastic body only.
Turn on the instrument to check the new sensor works correctly through the menu "Sensor Troubleshooting".
It is normal if a newly installed sensor gives a 'current error': it is necessary to wait some time, so that the sensor
polarization can settle.
The table here below shows the minimum settling time for each sensor.
CODE
MEASURED GAS SETTLING TIME
Flex-Sensor O2
Cod. AACSE43
O2
Oxygen
2 hours
(1)
Flex-Sensor CO+H2
Cod. AACSE12
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO+H2 low range
Cod. AACSE24
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO 100.000 ppm
Cod. AACSE17
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO 20.000 ppm
Cod. AACSE18
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor NO
Cod. AACSE10
NO
Nitrogen Oxide
48 hours
(2)
Flex-Sensor NO 5000ppm
Cod. AACSE42
NO
Nitrogen Oxide
48 hours
(2)
Flex-Sensor NO low range
Cod. AACSE25
NO
Nitrogen Oxide
48 hours
(2)
Flex-Sensor NO2
Cod. AACSE14
NO2
Nitrogen Dioxide
2 hours
(1)
Flex-Sensor NO2 low range
Cod. AACSE26
NO2
Nitrogen Dioxide
2 hours
(1)
Flex-Sensor SO2
Cod. AACSE13
SO2
Sulphur Dioxide
2 hours
(1)
Flex-Sensor SO2 low range
Cod. AACSE28
SO2
Sulphur Dioxide
2 hours
(1)
FLEX-Sensor CxHy
0-5.00% vol. referred to CH4
Cod. AACSE39
CxHy
Unburnt Hydrocarbons
1/2 hour
(3)
Flex-Sensor CO2 0 .. 20% vol.
Cod. AACSE41
CO2
Carbon Dioxide
2 hours
(1)
Flex-Sensor H2S 500 ppm
Cod. AACSE35
H2S
Hydrogen Sulfide
2 hours
(1)
Notes:
(1) 2 hours’ settling time is required.
(2) 48 hours’ settling time is required; should the sensor be equipped with an external polarization battery, the
settling time is reduced down to 2 hours.
(3) 1/2-Hour settling time is required.
CODE
MEASURED GAS
SETTLING TIME
Flex-Sensor O2 LL
Cod. AACSE43
O2
Oxygen
24 hours
(1)
Flex-Sensor CO+H2
Cod. AACSE12
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO+H2 low range
Cod. AACSE24
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO 100.000 ppm
Cod. AACSE17
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor CO 20.000 ppm
Cod. AACSE18
CO
Carbon Monoxide
2 hours
(1)
Flex-Sensor NO
Cod. AACSE10
NO
Nitrogen Oxide
48 hours
(2)
Flex-Sensor NO low range
Cod. AACSE25
NO
Nitrogen Oxide
48 hours
(2)
Flex-Sensor NO2
Cod. AACSE14
NO2
Nitrogen Dioxide
2 hours
(1)
Flex-Sensor NO2 low range
Cod. AACSE26
NO2
Nitrogen Dioxide
2 hours
(1)
Flex-Sensor SO2
Cod. AACSE13
SO2
Sulphur Dioxide
2 hours
(1)
Flex-Sensor SO2 low range
Cod. AACSE28
SO2
Sulphur Dioxide
2 hours
(1)
FLEX-Sensor CxHy
0-5.00% vol. referred to CH4
Cod. AACSE39
CxHy
Unburnt Hydrocarbons
1/2 hour
(3)
Flex-Sensor CO2 0 .. 20% vol.
Cod. AACSE41
CO2
Carbon Dioxide
2 hours
(1)
Flex-Sensor CO2 0 .. 50% vol.
Cod. AACSE47
CO2
Carbon Dioxide
2 hours
(1)
Flex-Sensor H2S 500 ppm
Cod. AACSE35
H2S
Hydrogen Sulfide
2 hours
(1)
Flex-Sensor NH3 500 ppm
Cod. AACSE56
NH3
Ammonia
24 hours