Dräger Regard 3920 - Technical Specifications

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®
3900 
Technical data
10 Technical data
Versions with operating console (REGARD® 3900 and 3920)
Dimensions 415 x 305 x 175 mm
Weight approx. 5 kg
Material ABS-VO
Degree of protection IP65
Cable entry M20 (qty 30)
All versions
Cable x-section
Max. 2.5 mm
2
Min. 0.5 mm
2
AC input voltage (to energy sup-
ply unit)
Typical: 98 to 253 V AC, 50 to 60 Hz
AC power consumption
2 A energy supply unit
5 A energy supply unit
10 A energy supply unit
Typical: < 0.5 A; max. 0.5 A
Typical: 0.5 A; max. 1 A
Typical: 1 A; max. 2 A
DC input voltage 18 to 30 V DC
DC power consumption at 24 V
Input module:
Relay module:
Output module:
Display:
Interface unit (RS-232):
60 mA with the exception of the transmitter
200 mA
300 mA
170 mA
50 mA
Readings and acoustic signals Readings: LEDs and display
Acoustic signals: Acoustic alarm sounder
Storage temperature -25°C to +70°C
Operating temperature 0 to +55°C
Relative humidity (RH) during
operation and storage
REGARD® 3900/3920:
0 to 100%, non-condensing
REGARD® 3910:
0 to 95%, non-condensing
Warm up time < 40 s
Response time < 2 s
Measurement accuracy Within 1% of the measured value
Module mounts M3
Relays (all modules)
Type Zero potential, single pole changeover relay
Contact material Silver alloy
Nominal switching capacity 5 A 250 V AC; 5 A 30 V DC
Max. switching power 1250 VA; 150 W
Switching voltage Max.: 250 V AC; 100 V DC
Min.: 10 V
Switching current Max.: 5 A
Min.: 100 mA
Output module