SysTec GmbH - Weighing Terminals for Scales and Systems
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Weighing Terminals for Scales and Systems

IT3 Ex2/22

Universal Weighing Terminal, W&M Approved, for Industrial Use
for installation in Ex zones 2 and 22.

Desk-top/wall-mount version

Front view

Panel-mount version

Universal Use

Suitable for difficult environmental conditions and locations with high hygienic standards, as in the food, pharmaceutical and chemical industry.

High Operational Security

Fast and error-free operation is ensured by a color display for the indication of weight, IDs and operator prompts in combination with an easy-to-use keyboard.

Weighing Electronics

IT3 Ex2/22 connects to one or two scales with analog strain gauge load cells, entry impedance 43 Ohm–3.3 kOhm (e.g. suitable for 8 x 350 Ohm load cells), or via zener barriers, entry impedance 87.5 Ohm–3.3 kOhm (e.g. suitable for 4 x 350 Ohm load cells). W&M approved resolution of up to 10,000 d. Calibration is possible as single or multiplerange (e.g. 3 x 3,000 d) and as single or multiinterval scale. Interface modules for digital load cells are available as options.

Weighing Program

Display of net, tare and gross weight. Operator prompting with entry of up to 20 additional IDs (e.g. order No., customer No., product No. etc). Prompts and length of entries are configurable.
Weighing data can be stored in an internal W&M approved data archive (only for operating modes BASIC, TRUCK and ONLINE). Parts counting and totalizing is also possible.
Plug-on modules are used to set IT3 Ex2/22 up for applications of varying complexity.

Data Logging

Via optional printer interface. The print layout for labels or forms is fully configurable. Printout of weights, totals, date, time, stored texts, entered IDs and calculated values.

Data Transmission To PC

Transmission of all entered IDs, date, time and weight after each weighing cycle, data storage on the PC's hard disk.


Via optional PC interface. Reading of weight, taring, zero setting and other functions can be remotely controlled from a PC. Weights can be stored in a W&M approved data archive in the IT3 Ex2/22 or on the PC's hard disk for verification. Data transmission is possible through serial interface or Ethernet LAN.


Desk-top/wall-mount version

  • Suitable for desk-top or wall-mount installation
  • Stainless steel housing IP65
  • Dimensions W x H x D: 228 x 214 x 124 mm

Panel-mount version

  • Panel-mount installation
  • Stainless steel housing, fascia plate protected to IP65.
  • Dimensions W x H x D: 241 x 180 x 47 mm
    Cut-out in panel: 223 x 162 mm

Display and keyboard

Bright 5" (13 cm) color screen for indication of weight and operator prompts and calibration.
Sealed membrane keyboard with tactile feedback, with numeric keys for the input of tare weights and additional information, scale keys for zero setting and taring and function keys. Input of alpha characters via multiple assignment of numeric keys.

Switching And Filling

With an optional input/output module two weight thresholds can be monitored, e.g. for max. or min. values. Start of weighing cycle and taring is possible from external switches. Alternatively the inputs and outputs can be used for a filling sequence with start/stop switch.

Electrical connection

110–240 V AC, 50/60 Hz or 12–30 V DC via integrated power supply unit, or 12–30 V DC for power supply via external battery.

Operating temperature

–10 °C (+14 °F) to +40 °C (+104 °F), max. 95 % relative humidity, non-condensing.

Interface options

One SIM socket for:
Serial interface to connect a PC, printer, remote display or reference scale via RS232 or RS485 4-wire. Printout configurable with PC tool IT CONFIGURATOR.
Ethernet module to connect to TCP/IP networks or a network printer. Remote diagnosis is possible via internet.
USB module to connect a USB printer or keyboard.

One extension socket for:
SIM-ETH3 module providing a second SIM socket.
Fieldbus module for Profinet, Profibus DP or Ethernet/IP.

One socket for digital inputs/outputs or analog output:
2 digital inputs and 2 digital outputs
Optoisolated, 24 V DC, outputs for setpoint monitoring or simple filling applications, inputs for start of weighing and taring or start/stop of filling.
Analog output 0–20 mA, 4–20 mA, 0–10 V or 2–10 V, 15 bit, 32,000 divisions, for analog output of weight.

ATEX Approval

For installation in Ex zones
2 (gas) and 22 (dust).

© 2020 SysTec GmbH