TriOxmatic
®
690
Technical data
37
ba25314e05
09/2020
7.3
Characteristic data on delivery
Zero signal
< 0.2 % of the saturation value
Response time at 25 °C
Own consumption
0.0059 µg h
-1
(mg/l)
-1
at 20 °C
Drift
< 1 % per month during permanent polarization
Working life
approx. 5 years per electrolyte filling
(theoretical electrolyte reserve for operation under air saturation)
7.4
Electrical data
Power supply
via WTW measuring transmitter.
Connection technique
Connection cable permanently mounted on the sensor.
Connection to the measuring transmitter via 7-pole screw plug.
WARNING
All voltages must be protective low voltages or safety extra low
voltages without hazard of contact according to E 61010-1 or
UL 3111-1. All currents to the probe must not exceed 8 A even in
case of a short-circuit.
Pin assignment
t
90
(90 % of the final value display) after:
< 180 s
Pin
Assignment
Voltage
Max. current
1
2
3
4
5
6
7
Ub+
0 V
NTC
NTC
Ub-
Reg/Leck (output signal)
pO
2
(output signal)
+ 6.5 V ... + 8.5 V
---
< 3.5 V
< 3.5 V
- 6.5 V ... - 8.5 V
- 8.5 V ... + 8.5 V
0 V ... + 8.5 V
1 mA
---
0.15 mA
0.15 mA
1 mA
---
---
4
3
5
6
7
1
2
Plug from the front:
