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NEP-5000 MANUAL
V2019-08-29
Observator Instruments
Copyright 2019
©
Page 63
9.7.
SDI12/Analog Subconn connector
option (#WD7)
Calibration wiring setup for SDI-12 Analog Subconn:
Figure 9.7.A:
SDI12/Analog Subconn Pinout Configuration
Subconn Pin
Number
Voltage option
Subconn
color
Calibration
Module Pin
#1
Power GND, SDI12 GND,
and Voltage Output GND
(+Ve)
Black
#2
#2
SDI 12 Data
White
N/A
#3
Power +10V to +24V DC
(+Ve)
Red
#1
#4
4-20mA loop to power
GND via 100 ohms
Green
N/A
#5
Voltage Out (pin 1 as GND
ref)
Orange
N/A
#6
Calibration / Wiper
Blue
#6
OEM Calibration
Software
12VDC POWER
SUPPLY
(Power Pack)
USB
DC in
Windows 7 or newer
1280 x 720 or better
.Net 4.0 Runtime
WD7
Power (Subconn #3, Red)
GND (Subconn #1, Black)
Detail #WD7
SCALE 2:1
Calibration (Subconn #6, Blue)