SmartBox
®
4 / SmartBox
®
4
PRO
part no. 28 400 57 c
29 / 32
Checking the level probe signal:
Can be checked through menu item 22:
At 0 cm fill level
approx. 3.7 - 4.3 mA.
For 1 m water column
approx. 9 - 11 m (standard level probe with measuring range
250 mbar).
TECHNICAL DATA
Indicator
Action
Typ 1.B (according to EN 60730-1)
contamination degree
2 (according to EN 60730-1)
Rated impulse voltage
4000V
Supply voltage
230 V AC 50 Hz
Power input
max. 2 VA
Measuring input
4 to 20 mA; U
o
= 20 V
Relay output
only SmartBox
®
4
Switching voltage
max. 250 V AC
Switching current
max. 3,5 A
Dimensions W/H/D in mm
194 x 130 x 65 mm
Ambient temperature
-10 °C to +50 °C
Housing
Polycarbonat (PC)
Analog output
0 to 5 V DC; 4 to 20 mA
Resolution
10 Bit
Degree of protection
IP54 acc. to EN 60529
Level probe / Standard probe
Operating voltage
20 V DC
Material
V4A; POM; FPM; PUR
Accuracy
± 1 %
Standard version
250 mbar
Installation position
vertically suspended, or horizontally supine
Ambiente temperature
operating media
-10 °C to +50 °C
connection cable
6 m
Length of standard probe
without cable: 97 mm
Diameter of probe: 22 mm
Degree of protection
IP68 acc. to EN 60529