Technical information

34
Input modules
AC voltage DC voltage
NRF590 order code
1)
module A
1) This order code is valid if the module is preinstalled in the Tank Side Monitor as module A or module B.
NRF590 -
****B******
NRF590 -
****D******
NRF590 -
****C******
NRF590 -
****E******
NRF590 order code
1
module B
NRF590 -
*****B*****
NRF590 -
*****D*****
NRF590 -
*****C*****
NRF590 -
*****E*****
Order code
2)
2) This order code is valid if the module is ordered as an accessory.
52012955 52012956 52012957 52012958
Colour of housing yellow yellow white white
Input voltage 90 ... 140 V AC 180 ... 264 V AC
3)
3) This upper limit of the input voltage is determined by the Tank Side Monitor.
3 ... 32 V DC 35 ... 60 V DC
Nominal input resistance 22 kΩ 60 kΩ 22 kΩ 60 kΩ
Max. pick-up voltage 90 V AC 180 V AC 3 V DC 35 V DC
Min. drop-out voltage 25 V AC 50 VAC 1 V DC 9 V DC
Input current @ max.
voltage
8 mA rms 8 mA rms
Typ. power dissipation 1 ... 1.5 W/A 1 ... 1.5 W/A
Transient protection Meets IEEE472 Meets IEEE472
Optical isolation yes yes
Isolation voltage 4000 V rms 4000 V rms
Approvals UL, CSA, CE, TÜV UL, CSA, CE, TÜV
1
2
3
4
5
+
-
V AC/DC
Logic
Out
Schmitt
Trigger
Ground
1
2
3
4
5
+
–
V DC
Logic
Out
Schmitt
Trigger
Ground