Logic II Series User Manual

Installation Manual WTS3 Series II
M013610b.doc 2
WTS3 – GENERAL DESCRIPTION
WTS3 weight conditioner and transmitter has been developed to interface strain gage transducers
with industrial automation systems (such as PLC, computers etc..). The board supplies up to 4
load cell (350 ohm) amplifies the load cell signal and perform 2 different analog outputs: a 0 - 10 V
and a current output 0 - 20 mA or 4 - 20 mA (Factory selected).
The simple calibration procedure allow a quick set up and installation of the system.
The dead load compensation and full scale calibration is carried out by rotary switch for medium
setting and by trim-pots for fine setting.
The zero calibration of the analog output does not affect the full scale output and vice versa.
Calibrating the voltage output in the range 0 - 10 V, the current output is automatically calibrated.
The choice of the desired current range is carried out by a switch selection (standard range 4-20
mA) and correctly calibrating the device.
WTS3 conditioner is powered with 24 Vdc +/- 10 %.
Two different mounting versions are available :
- DIN rail mounting in plastic box (model WTS3).
- Boxed card in IP65 aluminium case for outdoor mounting (model WTS3-B).
GENERAL TECHNICAL SPECIFICATIONS
Load cells supply : 10 V
Max. current
:
170 mA (max. 6 x 350 ohm)
Input signal range
:
from 0.2 to 3.0 mV/V
Accuracy
:
0.1 % F.S.
Linearity
:
0.02 % F.S.
Thermal drift (full scale) : 0,005 % / °C F.S.
Thermal drift (zero)
:
0.005 % / °C F.S.
Operating temperature
:
from 0 °C to 45 °C
Analog outputs
:
0 - 10 V max 2mA
0 - 20 mA or 4 - 20 mA max 500 ohm
Filter
:
200 msec – 2 msec Selectable - low pass
Power supply
:
24 Vdc +/- 10 %
Power consumption
:
3 W max.
Board dimensions WTS3
:
23 x 99 x 112 (L x H x P)
Board dimensions WTS3-B
:
133 x 133 x 91 (L x H x P)

Logic II Series Specifications

General

Brand	Logic
Model	II Series
Category	Transmitter
Language	English