8A O2 and H2O analysers
Oxygen analyser
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
Page
8A - 3
The analyser consists of the sensor, a box with integrated electronics and a gas-tight
DN40-KF clamp flange. The sensor is protected against mechanical damage by a pro-
tective cage. The sensor leads are connected to the electronics by a vacuum-tight feed-
through. The electronics are contained in a box mounted directly behind the DN40-KF
flange. The electronic measuring equipment is supplied with 24 V DC. It provides an out-
put voltage signal of 0 … 10 V DC proportional to the oxygen concentration.
The heater of the sensor element is controlled by an additional input. If this external input
is not used, a jumper (bridge) must be placed on the electronics.
8A.3.2 Technical data
Dimensions 190 mm x 80 mm x 58 mm (L x H x D)
Sensor Length 45 mm, Diameter 26 mm
Flange NW 40 KF
Weight 0.7 kg
Supply voltage 24 V DC ± 10%
Ambient temperature +15 to +27 °C
Pressure 800 to 1200 mbar (max. differential pres-
sure between sensor and electronics 200
mbar)
Measuring range <1.0 ... 1000 ppm oxygen
Sensitivity 10 mV / ppm
Response time (0 … 90 %) Approx. 10 sec. (0–90%)
Warm-up phase 10 min. (for < 10 ppm approx. 6 h)
Accuracy
1
: +/- (2% of dsplayed value + 1 ppm)
Drift at 10 ppm < 10% / year
Sensor life span
2
Approx. 5 years
1
In a clean argon atmosphere, without trace gases such as H
2
O and CO
2
2
Without influence of reactive gases
8A.3.3 Installing the oxygen analyser
Pin connection
PIN Contact
1 Supply ground
2 Controller on/off 24 V
To Next Page
Loading...
