172-65639M-01 (EF200) 13 Apr 2018
32
Load
The area marked in gray indicates the permissible load.
Depending on the supply voltage (U
S
), the maximum load
(R
B
) including line resistance must be observed to ensure
adequate terminal voltage at the device. In doing so,
observe the minimum terminal voltage.
R
B
≤
(U
S
– U
term.min
)
÷
0.022 A
R
B
≤
500
Ω
R
B
:Load
U
S
:Supply voltage
= 13 to 35 V DC
Low Flow Cutoff
Switch points for low flow cut off can be selected as required
Galvanic Isolation
All electrical connections are galvanically isolated
themselves.
6.1.5 Power Supply
Electrical Connection
See 4.2
Supply Voltage
13 to 35 V DC
Cable Entry
Power supply cable / signal cable (outputs):
•
Thread for cable entry: G
1
/
2
Cable Specification
•
Standard installation cable is sufficient
•
Remote version
→
See 4.4
Power Supply Failure
•
Totalizer stops at the last value determined (can be
configured).
•
All settings are kept in the EEPROM.
•
Error messages (incl. value of operated hours counter)
are stored.
Overvoltage protection
(optional)
Input voltage range
: Values correspond to supply
voltage specifications
(The voltage is reduced by
the amount of the internal
resistance)
Resistance per channel
: 2
⋅
0.5
Ω max
DC sparkover voltage
: 400 to 700 V
Trip surge voltage
: <800 V
Capacitance at 1 MHz
: <1.5 pF
Nominal discharge current
(8/20
µ
s)
: 10 kA
Temperature range
: -40 to +85
°
C
