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Thermal control device NEX for Pt100 probes
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 PriceAlma Elettronica MARKASINA A?T ?R?N GRUPLARI
*manuals
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