It is provided with relay outputs for alarm purpose, analogue output for retransmission of process / setpoints and programmable digital inputs. Available in standard format 96x48mm, the device can be configured both for horizontal and vertical mounting. Distinctive feature is the intuitive multilingual interface, supported by a graphic OLED monocromatic yellow display 128x64 pixel. Visualization options include bargraph and process trend with programmable sampling time. Software features include mathematical functions related to process value like totalizer and sum. Serial connectivity relies on RS485 and Modbus-RTU protocol.


1 Model identification Model 24..230 Vac/Vdc +/-15% 50/60 Hz – 8 VA STR561-12ABC-T128R 2 Relays 2A + 1 output mA + 2 D.I.+ RS485 + OLED display + Rfid 2 Technical Data 2.1 General data Display Backlighting graphic OLED 2.42'' (STR561) Operating temperature Temperature 0-40 °C - Humidity 35..95 Rh% Sealing IP54 front panel (with gasket) - IP20 box and terminals Material Box: Polycarbonate V0 Weigh Approx. 165 g 3 Hardware data Power supply Extended power supply range 24..230 Vac/Vdc ±15% 50/60 Hz Consumption: 8 VA. Analogue input IN+ / IN- Differential input, software-configurable - for strain-gauge (load cells or Melt sensors), max 7,5 mV/V with 5V power supply (max 4 cells 350 Ω in parallel). - for potentiometer (min. 200 Ω, 5V power supply. Tolerance (25 °C) +/-0.2% ±1 digit ( f.s.) Impedance Ri>1 MΩ Relay outputs 2 Relays RContacts 2A - 250 Vac. esistive charge. Analogue output Config. as 0..20mA or 4..20mA. Resolution 16bit +/-0.2% ( F.s.)

Alarms regulation ON/OFF with hysteresis Alarm mode Absolute / Threshold, Band with instantaneous / delayed / retentive action/activation by digital input , Sensor failure / Activation by serial line / net weight / Gross weight / Stable weight / Sum Sum Function By digital input or by keyboard it is possible to sum different process measurements over time Totalizer Function Visualisation of instant process value and total value since last reset Trend visualization Trend visualisation up to 59 samples, with selectable time basis 0,1 s to 3600 s Analogue retransmission Process values / alarm value via analogue output Digital transmission Process values / Setpoint / Parameters via RS485 Calibration function Following options are available for calibration procedure: • Calibration with 2-points sampling value • Calibration on full scale % value • Calibration value mV/V. Data logging function Selectable time basis 1s to 3600s, tot. memory 1K samplings Text menus English / Italian / Deutsch / French / Spanish Autozero Measure reset at starting Net / Fross Net/gross weight function by key, digital input or serial. Stability Signaling of configurable stable weight