Dansensor® ISM-3 EN User Manual 27
P/N 200114-I
09/2021
9. Specifications
Sensor
Type Solid-state ionic conductor with stabilized zirconium oxide
electrolyte
Temperature 1000K (727°C)
Warm-up time 10 min., full specification after 20 min.
Calibration interval 12 months
Reference gas Atmospheric air (20.946% oxygen)
Sensor response time Less than 50 msec.
System response time T90 (100-1000ppm): Typically 8 seconds
T90 (1000-100ppm): Typically 15 seconds
Response time depends on the flow and the measuring gas
hose
Calibration Atmospheric air 20.946% + up to 4 optional calibration gases
Flow system
For ISM-3 without an internal pump, the measuring gas is supplied at a pressure of 2 - 10 bar.
By means of the restriction hose the flow is limited to 125 ml/min, before the gas is led
through the flow sensor and the oxygen sensor.
When ordering a ISM-3 without a build-in pump, the actual inlet pressure must be indicated
so that ISM-3 can be delivered with a restriction hose which is adapted to the actual pressure.
Fig. 5. Flow diagram of ISM-3 without pump.
Gas in
2 - 10 bar
Restriction hose
Gas out
125 ml/min
Pressure
sensor
(for flow indication)
O
2
sensor
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