Temperature monitor system for cast resin, dry and oil transformers with 8 inputs for 3 wires PT100 probes

• Control and showing temperature
• Control of fan systems
• Eight independent PT100 inputs with three wires
• Four 250 Volt 10 A AC (resistive load) relays of outputs for the
  following functions: pre alarm state, alarm state, fault probe state,
  fan control with hysteresis (ME100 – ME100 V3)
• Five 250 Volt 10 A AC (resistive load) relays of outputs for the
  following functions: pre alarm state, alarm state, fault probe state,
  separate fan control with hysteresis (ME100 V2 – ME200 E)
• Manual test relays to simulate or check the reliability of the contact
• Advanced programming menu: is allowed able, enable and set
  separately each single channel
• Permanent storing of programmed set of pre-alarm and alarm
  state, on, off fan and history values achieved
• Assembly on panel by simple fixing jaws
• Universal power supply (24 ÷ 240) Volt AC/DC 50/60Hz
• Serial communication port RS485 full duplex,
  own ASCII communication protocol (ME100)
• Galvanically insulated analogical output 4-20 mA (ME100 V2)
• Protocol MODBUS – RTU, RS 485 communication (ME 100 V3)
• Protocol MODBUS – TCP, ETHERNET communication (ME 200 E)
• Tropicalization (optional)

Models

Technical features

Dimensions

• Box 90x90x130 mm included terminal blocks
• Front panel 96×96 mm
• Weight 0,6 Kg

Power Supply

• Power supply (24 ÷ 240) Volt AC/DC ± 10% 50/60Hz without polarity respect, absorption 4 VA

Inputs

• Eight analogical inputs, temperature control and mapping with PT100 sensor at three wires inside range from -10°C to +200°C

Outputs

• Four relays 250V AC, 10 A max (resistive load),
  free switch contact (ME100 – ME100 V3 – ME100 E)
• Five relays 250V AC, 10 A max (resistive load), free switch contact (ME 100 V2)
• Serial communication port RS485 full duplex, own ASCII communication protocol (ME100)
• Galvanically insulated analogical output 4-20 mA referred to the channel with the most high temperature (ME100 V2)
• Serial communication port RS485 full duplex protocol of MODBUS – RTU (ME 100 V3)
• ETHERNET communication port, protocol MODBUS – TCP (ME100 E)

Characteristics

• Self-extinguishable NORYL Box
• Protection degree front panel in polycarbonate: IP65 (IP66 on request)
• Protection degree of rear panel on terminal board side: IP20
• Display with light segments
• Visualisation of max temperature and the relevant channel in the automatic mode
• Alerts of pre-alarm, alarm, probes fault, fanning, manual function, historic highs
• System programming directly by frontal panel
• Possibility to select independently each channel
• Limit of alarm and pre-alarm settable in the range (-9°C ÷ 199°C)
• Precision ± 1% on full-scale ± 1 digit
• Cooling fan control on three or four channels
• Comparison of temperature for cooling fan between two different levels (L and H).
• Four selectable operating modes
• Detection of fault probes, maximum flexibility of managing and simplicity of programming, checking of validity of the insert data during programming phase
• Continuos storage of planned and reached values by each channel (limits and historic highs)
• Dielectric isolation: 2,5 KV AC for 60”
• Software configuration to control the environment temperature
• Resolution 1°C
• Working temperature of device from -20°C to 60°C
• Max allowed dampness in the room 90% not condensing
• Electrical connections with fast-polarised connectors
• Possibility of manual relays switch through menu test relays to simulate and check the reliability of contact
• Configuration of IP address, port, su bnet, gateway via browser web (ME100 E)
• Technical manual in three languages (and more on request)
• Construction in accordance with rules
• Input filter for power supply in accordance with rules
• Tropicalization (optional)