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Alma Elettronica
thermal control device NEX for Pt100 probes
Thermal control of transformers, motors and electric generators
- 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
- 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
- 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
- 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
- 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.
thermal control device PTC for thermistors
THERMAL CONTROL WITH PTC OF TRANSFORMERS, MOTORS AND ELECTRIC GENERATORS
- nominal line voltage and frequency: 24 ÷ 240 Vcc e 24 ÷ 240 Vac at 40÷60 Hz
- maximum line voltage from 20 to 250 Vac and Vcc
- Vcc with reversible polarity
- Maximum power absorption 5 VA
- Protection against electrical and magnetic noises
- 3 analog input channels for Ptc probes
- connection with removable terminals for wires of 1,5 mm2 section and capacity of 8A/250Vac
- detection for broken or not connected probes
- input channels protected against electromagnetic noises and spikes
- 3 output relays with contacts capacity of 5A with 250Vac
- output connection with removable terminals for wire of 1,5 mm2 section and capacity of 8A/250Vac
- frontal dimension 48 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 44 mm x 92 mm
- ABS self-extinguishing container
- Frontal panel in anti-scratch with keyboard and signal leds
- Probe 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
Displaying and data management
- 3 leds indicating alarm levels
- 1 led indicating working anomalies or probe fault
- 5 leds to visualize the delay set on A1 series alarm (for fan control)
- user data programming by membrane keypad
Tutti questi dati sono contenuti nella brochure tecnica del dispositivo PTC (brochurePTCe.pdf).
magneto-thermal protection device IPS for electric loads
DISPOSITIVO DI PROTEZIONE MAGNETO-TERMICA PER CARICHI ELETTRICI
Tutti questi dati sono contenuti nella brochure tecnica del dispositivo NEX (brochureNEXi.pdf).
Alma Elettronica
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