GF U1000 V2 - Pulse Output; Ma Output; Modbus Option; Interface Cable

Installation Instruction manual
18
6
Return conductor (-), 4 - 20
mA (black)
The 4 - 20 mA current output is an insulated current
source designed for loads of < 620 Ω.
The alarm current is triggered by flows outside the
specified range or by signal loss, and is set at 3.5 mA.
7
Non-insulated shielding
Electric shock due to short-current!
Before connecting the U1000 V2 to an external power supply, make sure that the power
supply is switched off.
8.8.2 Pulse output
The isolated pulse output is provided by a SPNO/SPNC MOSFET relay which has a maximum
load current of 500mA and maximum load voltage of 48V AC. The relay also provides 2500V
isolation, between the sensor’s electronics and the outside world.
The pulse output is available at the White and Green wires. Electrically this is a volt, or
potential free contact, and when selected as a low flow alarm is configurable NO/NC.
8.8.3 4-20 mA Output
The isolated 4-20mA is a current source and can drive into a maximum load of 620Ω.
The 4-20mA current output is available at the Red and Black wires.
The alarm current due to a flow outside the range specified or due to a loss of signal is set at
3.5mA.
8.9 Modbus option
8.9.1 Interface cable
1
Modbus –ve (brown)
2
Modbus ground (white)
3
Modbus +ve (black)
4
Modbus ground (white)
5
Modbus optional ground (uninsulated screen)
WARNING
CAUTION