STR561 is an indicator/panel meter for acquisition and retransmission of
processes, also with fast transient. 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
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