Greatest reference in our business is our successful past

Thermal control device NEX for Pt100 probes

Thermal control device  NEX for Pt100 probes
Alma Elettronica
Thermal control device  NEX for Pt100 probes
Thermal control of transformers, motors and electric generators
Microprocessor device for thermal control of transformers, motors and electric generators. With a LCD 16x2 display to simultaneously show all the measured temperatures. Easy and practical user's data programming.
Equipped with four input channels, one of which deactivable by programming, for three wires Pt100 (RTD) probes. Relay outputs for: fan activation, alarm, unhook, probe's damage or out of control signal.

Technical specifications

Power supply

  • nominal line voltage and frequency: 24 ÷ 250 Vcc and Vac at 40 ÷ 60 Hz
  • Maximum line voltage from 20  to 260 Vcc and Vac
  • Vcc with reversible polarity
  • Maximum power absorption 7 VA
  • Protection against electrical and magnetic noises


Inputs

  • 4 analog input channels for three wires Pt100 probes compliance with requirement DIN 43760. The operator can de-activate the 4th channel from programming
  • connection with removable terminals for wires of 1,5 mm2 section
  • cables length compensation up to 500 m (1 mm2 section)
  • detection for broken or not connected probes
  • input channels protected against electromagnetic noises and spikes


Outputs

  • 4 output relays with contacts capacity of 5A with 250Vac
  • one relay for the 1st setpoint level (for fan control)
  • one ralay for the 2nd setpoint level (pre-alarm)
  • one relay for the 3rd setpoint level (unhook of the electrical unit)
  • one relay for probe fault or working anomaly signaling (general alarm)
  • output connection with removable terminals for wire of 1,5 mm2 section and capacity of  8A/250 Vac


Device dimensions

  • frontal dimension 96 mm x 96 mm compliance with DIN 43700 requirements. Device length  of 105 mm with rear terminals
  • assembling on the front of the electric panel
  • panel cut-out 92 mm x 92 mm
  • ABS self-extinguishing container
  • Frontal panel in anti-scratch polyestere with keyboard and signal leds


Performances

  • Temperature monitoring from 20°C to 200°C
  • Temperature measurements accuracy ±0,5% full scale, ±1 digit
  • Digital linearity of probe signal compliance with DIN 43760 requirements
  • Self-diagnostics
  • Operating temperature range from 5°C to 50°C
  • Humidity lower then 95% no-condensing
  • Compliance with CE requirement
  • User data storage for 10 years without power supply
  • Device functionality self-diagnostic
  • Alarm signal for working anomalies or wrong user data definition


Displaying and data management

  • backlighted LCD display 16 characters x 2 lines, for the visualization of all the 4 measured temperatures
  • 3 leds indicating alarm levels
  • 1 led indicating working anomalies or probe fault
  • user data programming by membrane keypad
  • automatic exit from programming procedure after 30 seconds of no operation
  • 3 temperature levels programming for 3 input channels
  • 3 temperature levels programming for the 4th input channel
  • hysteresis,  alarm memory, delay and impulse data programming
  • notification for wrong user data statements
  • stated data recall and visualization by the membrane keypad
  • maximum measured temperature storage for each input channel
  • memory alarm reset by membrane keypad

 

All these data are in the technical brochure brochureNEXe.pdf.

More Info Price

Alma Elettronica MARKASINA A?T ?R?N GRUPLARI

*manuals
*manuals
Thermal control device  NEX for Pt100 probes
Thermal control device NEX for Pt100 probes
Thermal control device  PTC for thermistors
Thermal control device PTC for thermistors