KROHNE OPTISOUND 3020C 4wire EN - Manual (Page 39)

Ambient conditions
Ambient, storage and transport temperature
- without indicating/adjustment mod-
ule
-40 … +80°C (-40 … +176°F)
- the indicating/adjustment module -20 … +70°C (-4 … +158°F)
Process conditions
Vessel pressure
-20 … 200 kPa (-0.2 … 2.0 bar/-2.9 … 29 psi)
Process temperature (transducer tem-
perature)
-40 … +80°C (-40 … +176°F)
Vibration resistance mechanical vibrations with 4 g and 5 … 100 Hz 5)
Electromechanical data
Cable entry
- Double chamber housing
l
1x cable entry M20x1.5 (cable-ø 5 … 9 mm),
1x blind stopper M20x1.5
or:
l
1x closing cap ½ NPT, 1x blind stopper
½ NPT
Spring-loaded terminals for wire cross sections up to 2.5 mm²
Indicating and adjustment module
Power supply and data transmission
through sensor via gold-plated sliding contacts
(I²C bus)
Indication LC display in full dot matrix
Adjustment elements 4 keys
Protection
- unassembled
IP 20
- mounted into the sensor without
cover
IP 40
Materials
- Housing
ABS
- Inspection window Polyester foil
Supply voltage
Supply voltage
- non-Ex and Exd instrument
20 … 72 V DC, 20 … 253 V AC, 50/60 Hz
Power consumption max. 4 VA; 2.1 W
5) Tested acc. to the regulations of German Lloyd, GL directive 2
OPTISOUND 3020 C - 4 ... 20 mA/HART - four-wire 39
Supplement
30508
-EN
-050914