The transmitter ZD 21 contains an amperometric
oxygen sensor, which is based on an electrochemical oxygen pump
cell made out of zirkonia. The detection principle stands for a
good long-term stability and selectivity. The transmitter ZD 21
is an "intelligent" transmitter.
The electronic of the ZD 21 takes over many tasks
that facilitate operation, maintenance and increases the operational
safety and accuracy. Its main features are:
- Easy on-site calibration
- Compensation of temperature effects
- Long lifetime: 5 years sensor life
TECHNICAL DATA
Measuring gas :
Oxygen (O2)
Measuring range :
0 .. 25 Vol %
Gas Supply :
Diffusion through sintered stainless steel
filter
Humidity :
00 .. 99 % r.h.
Pressure :
900 .. 1100 hPa
Cable connection :
PG 11
Cable length to controller :
Up to 300m (3x0,75mm cable)
Bigger 300m (3x1,5 mm cable) shielded cable
