Digi HI-700HS, Service Manual, Page: 72 / 324

HI - 700HS service manual - 2 - component parts
2 - 38 Issue 1 02/2020
Load cell specification & connecting plug wiring
The load cell is a single point type of double bending beam transducer construction
•
Material: stainless steel
•
Protection class: IP67
•
Sensitivity (Cn): 2.0 +/ - 0.2 mV/V
•
Input resistance (
R
LC): 380+/ - 15 Ω
•
Output resistance R0: 359 ±5
4
Ω
•
Reference: excit. Voltage (
U
ref): 5v
•
Norm range of excit. Volt. (BU):1 - 12v
•
Max excitation voltage: 15v
•
Mounting screw tightening torque = 14Nm
Wiring of load cell plug for connection to A/D
Pin 1 = green (sense +)
Pin 2 = grey (sense - )
Pin 3 = blue (exci)
Pin 4 = black (excitation - )
Pin 5 = shield/wire strand, clamp in
connector screw clamp
Pin 6 = white ()
Pin 7 = red (signal - )
Pins 8 to 14 = not used
The screen wires which connect to pin 5
are folded back over the sleeve and
clamped in place with the connector
screw clamp. See below.