Technical data
Hauser
29
10.2.5 Measured value resolution
COS22-*1 (standard sensor): 10 ppb in liquids, 0.2 hPa or 0.02 Vol% in gaseous media
COS22-*3 (trace sensor): 1 ppb in liquids, 0.02 hPa or 0.002 Vol% in gaseous media
equals the recommended resolution at the transmitter
10.2.6 Maximum measured error
±1.25 % of measuring range
1)
10.2.7 Repeatability
±1 % of the measuring range end
10.2.8 Long-term drift
< 4 % per month under reference operating conditions
≤
1 % per month when operating under reduced oxygen conditions (<4 Vol% O
2
)
10.2.9 Influence of medium pressure
Pressure compensation not necessary
10.2.10Polarization time
COS22-*1 (standard sensor): < 30 min for 98% of the signal value, 2 h for 100%
COS22-*3 (trace sensor): < 3 h for 98% of the signal value, 12 h for 100%
10.2.11Oxygen depletion (intrinsic consumption)
COS22-*1 (standard sensor): approx. 20 ng/h at air at 25
˚
C (77
˚
F)
COS22-*3 (trace sensor): approx. 100 ng/h at air at 25
˚
C (77
˚
F)
10.2.12 Operating time of the electrolyte
Theoretical durability at pO
2
= 210 mbar and T=25
˚
C (77
˚
F)
COS22-*1 (standard sensor): > 1.5 years
COS22-*3 (trace ensor): > 3 months
10.2.13 Temperature compensation
Compensation of the membrane properties depends on the transmitter used, recommended:
2.4 % per K
10.3 Environment
10.3.1 Storage temperature
–5 to +50
˚
C (20 to 120
˚
F) at 95% relative air humidity, not condensing
1)
In accordance with IEC 61298-2 at nominal operating conditions
