Siemens TM SIWAREX WP351 HF User Manual

10.2 Analog load cell interface connection
Article number 7MH4138-6BA00-0CU0
Analog load cell interface connection
Error limit according to DIN 1319-1 at 20 °C +/-10 K
Relative accuracy (absolute accuracy can only be achieved
with local calibration with calibration standards)
≤ 0.002% v.E.
Measuring accuracy in ac‐
cordance with OIML
R76-1:2006/EN45501:2015
(not certified)
Class III
Resolution (d=e) 3 x 6000 d
Error percentage pi 0.4
Step voltage 0.5 µV/e
Accuracy delivery state
Accuracy for module exchange or theoretical calibration de‐
cisive
typ. 0.1% v.E.
Sampling rate 1.024 ms
Input signal resolution ±20,000,000
Measuring ranges 0 ... ±1 mV/V
0 ... ±2 mV/V
0 ... ±4 mV/V
Common mode voltage range +2.8 … 7.7 V
DMS supply (constant voltage) 10 V DC (+ 1% / - 3%)
at the EXC terminals
Short-circuit and overload protection Yes
Connection 6-wire or 4-wire (parameterizable)
Sensor voltage monitoring typ. ≤ 5.0 V
Min. DMS input resistance
per channel
without Ex-i interface SIWAR‐
EX IS
56 Ω
Low impedance by means of external supply possible
with Ex-i interface SIWAREX
IS
87 Ω @ Type 7MH4710-5BA
180 Ω @ Type 7MH4710-5CA
Max. DMS resistance 4,100 Ω
Temperature coefficient range ≤ ±5 ppm/K
Temperature coefficient zero point ≤ ±0.015 μV/K
Linearity error ≤ 0.001 %
Measured value filtering Low-pass and average value filter
parameterizable (DR3)
Electrical isolation 500 V AC
50 Hz / 60 Hz noise suppression CMRR > 80 dB
Input resistance Signal cable typ. 8*10
6
Ω
Sensor cable typ. 300*10
6
Ω
Cable length
When using SIWAREX cable 7MH4702-8AG
max. 500 m
Technical data
10.2 Analog load cell interface connection
Technology module TM SIWAREX WP351 HF
150 Operating Instructions, 01/2020, A5E47521010-AA

Siemens TM SIWAREX WP351 HF Specifications

General

Brand	Siemens
Model	TM SIWAREX WP351 HF
Category	Control Unit
Language	English