GPI GM001, Owner'S Manual, Page: 4 / 20

4
W I R I N G D I A G R A M 1
— 4-20 mA or 0-20 mA Output —
Customer Equipment with Built-in Power Supply
Input: Turbine Mounted Display or Conditioned Signal Sensor (Open Collector)
Output: Customer Equipment, 0-20 mA Sensing, Built-in Loop Power Supply
Note Regarding Resistor “R”: R not generally required for distance up to 25 ft.
Use R = 10k (10000 ohms) for distance up to 50 ft.
Use R = 5.1k (5100 ohms) for distance up to 100 ft.
Use R = 2.7k (2700 ohms) for distance up to 250 ft.
Do not use R less than 2.4k (ohms)
CAUTION:
When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only). Face-
plate can be rotated 90°.
GPI
Meter
Ext. Power
(Red)
Pulse Out
(White)
Common
(Black)
Shield recommended.
If used, connect to
transmitter’s local
com
ONLY!
Local Com
HL-HF IN
R
(See note)
EDM Power
INPUTS OUTPUTS
4-20 mA Out
with Display
Loop (+)
Loop (–)
(current)
(current)
Min. V = 8.5
Max. V = 35
Customer
Equipment
➤
Minimum signal amplitude required for normal operation approx. 15 mV P-P
➤
Recommended cable type – twisted pair with shield
➤
Recommended maximum cable length – 20 ft.
CAUTION: When reassembling the faceplate,
make sure that the enclosure seal is not
crimped or twisted. Do not over-tighten
corner screws (hand tighten only). Face-
plate can be rotated 90°.
W I R I N G D I A G R A M 2
— 4-20 mA or 0-20 mA Output —
Customer Equipment With Built-in Power Supply – High Temp Applications
Input: Standard Remote Sensor (Variable Reluctance Pickup Coil)
Output: Customer Equipment, 0-20 mA Sensing, Built-in Loop Power Supply
GPI Meter
Unpowered
Pickup Coil
Only
Coil-A
Coil-B
Shield recommended.
Connect shield to
transmitter’s local
com ONLY!
Local Com
INPUTS OUTPUTS
4-20 mA Out
with Display
Loop (+)
Loop (–)
(current)
(current)
Min. V = 8.5
Max. V = 35
Customer
Equipment
Coil-A
Coil-B