<2. SPECIFICATIONS>
2-1
IM 11P03A03-01E
6th Edition : Jan. 26, 2022-00
2. SPECIFICATIONS
Measurement Object: Oxygen concentration in gaseous mixture
Measurement System: Paramagnetic system
Measurement Range: 0-5 to 0-25 vol%O
2
3 ranges can be programmed arbitrarily within the above specified range.
Self-diagnostic content: Sensor unit error, Constant temperature chamber error, Analog error,
Memory error, Calibration coefficient error
Analog output signal: 4 to 20mA DC (load resistance: Maximum 550Ω)
Contact output:
Contact rating; 3A at 250 VAC or 30 VDC, dry contacts
Fail;
1 point, open or closed when error occurs, user configurable
Contact is activated when sensor unit error, constant temperature
chamber error,analog error, memory error, or calibration coefficient error
(when automatic or semiautomatic calibration is enabled) occurs
Maintenance status; 1 point, closed during maintenance
Range answerback or high/low alarm;
2 points, normally deenergized (open)
Range answerback or high/low alarm contact output, user selectable
Operate solenoid valve: 3 points, Switching between zero and span calibration gas and
measured gas.
Maximum load; AC 1A
Contact input:
Input specification: Contact ON: 200Ω or less, Contact OFF : 100 kΩ
or greater
Remote range switching:
2 points, Output ranges 1 to 3 can be switched by
external contact signal.
Calibration start:
1 point, calibration start command by external contact signal.
Calibration methods:
(1) Automatic calibration at set intervals by internal timer
(2) Semiautomatic calibration started by external contact input
(3) Manual calibration in the field
Calibration gas:
Zero gas: N
2
gas
Note: Zero gas should not contain O
2
gas with a concentration equal to or greater than 0.1% of the upper range value.
Span gas: Dry air (instrument air O
2
: 20.95 vol%) or standard gas containing O
2
gas with
a concentration of 80 to 100% of the span value (balance nitrogen).
Auxiliary gas pressure: N
2
, 180kPa (Approx. 35ml/min)
Note: Auxiliary gas should not contain O
2
gas with a concentration equal to or greater than 0.1% of the upper range value.
Measurement gas condition:
Flow;
200ml/min ±10%, The gas flow rate may be less than 200ml/min
depending on the composition of the measurement gas.
Temperature; 0 to 50°C
Humidity;
No moisture condensation in the flow path or the sensor.
Warm-up time: Approx. 2.5 hours
Installation condition:
Ambient temperature; -5 to 55°C
Humidity;
10 to 95%RH (No condensing)
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