PROTEM
®
D 404
22
2.0 Technical data
Power supply
24... 250V AC/DC +/- 10% (DC ... 63 Hz)
There is no need to heed polarity.
Over voltage category
III; voltage peaks up to 4.000 V
Power consumption
approx. 10,5 VA
Serial fuse for unit
1 A
Ambient conditions
operation up to 2.000 above sea level
ambient temperature range : - 20°C ... + 60°C
pollution factor : 2
Relative humidity
5% - 85%, not dewy!
Storing temperature
-25°C... +60°C
Transport temperature
-25°C... +70°C
Type of protection
IP20
Cleaning
The front panel can be cleaned with a moistened cloth.
Measuring circuits
4 potential free measuring inputs
Measuring sensors
For each measuring circuit you can optionally use a PT100
(two wire type) or a PT100 (three wire type). The choice of
the respective measuring sensor can be done via DIP-switch
at the rear side of the device. Any combinations you like
between the four measuring circuits are possible.
Measuring range PT100 -28°C to +200°C (-20 to +190°C)
(The switching points of the respective relays are free
eligible within this measuring range)
Relay output
For each measuring circuit there is one relay output
available. Every relay output is equipped with a potential
free break contact and a potential free make contact.
The switch on and switch-off points are free programmable
for each relay.
Via software you can programme each relay as a timer with
operate lag or with release lag.
