TR Model 3, Amplifier

TR Model 3, Amplifier


Esit TR3, is a micro processor based transmitter that processes the load cells signals to be used in the industry.

It is used as a signal converter for PLC or similar industrial control devices in weighing, batching, level control and process control applications. With a user settable relay output, it is possible to control stand-alone systems of simple on-off, fill-empty automations. The rail-mounting case forms an integrity with other panel components and eases the connections.

The device which is aimed for industrial environments, features a three-way galvanic isolation. This eliminates the risk of breakdowns of load cells against leakage currents and the output stability is not affected by the electrical noises. Since all adjustments are done via keys, the drifts that may be seen with the potentiometric elements are ceased.


  • Three-way galvanic isolation
  • Internal power supply for current output eliminates need for external power supply
  • Zero setting up to 50% of full range
  • Error indicator in case of over voltage
  • Relay state indication
  • 0-20 mA Current and 10V Voltage output


RS422  RS232


Accuracy class (OIML approved) -
Input sensitivity 0.01% FS
Sensitivity 0.03% FS
Zero and gain stability  
A/D converter 24bit Sigma-Delta
Digital filter  
Reading frequency 50Hz-400Hz
Number of Loadcells allowed 8 adet (350ohm)
Analog input range 1 mV/V - 2 mV/V - 5 mV/V - 160mV/V
Excitation voltage 10V
Operating temperature range (OIML approved) 0°C +50°C
Storage temperature range -20°C +70°C
Operating voltage and power 24V DC (18V … 36 V) - 5W
Operator handling and Display 3 Tactile keys, 4-DIP switches
Keyboard Dust and humidity-proof membrane keyboard with 20 tact type keys
Weight display  
Function display  
Program Indicator  
Material and protection class Rail mounted plastic, IP20
Weight 0.1kg
Package weight and dimensions 0.2kg, 15x24x6cm
Communication Standard | Optional
Serial communication output - | RS-232
Parallel printer output - | -
Binary (BCD) output - | -
Remote display output - | -
Digital input / output 1 relay output (2A) | -
Analog output 4-20mA / 0-10V | -
*Serial communication and digital input/output options can not bu used simultaneously

Areas of Use:

- Cement & Construction
- Chemistry & Petrochemistry
- Machinery
- Iron & Steel
- Textile