Microprocessor temperature monitor system for 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)
- 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 4-20mA (ME100 V2)
- Protocol of MODBUS – RTU communication (ME 100 V3)
- Protocol of MODBUS – TCP, ETHERNET communication (ME 100 E)
- Tropicalization (optional)
Models
ME 100
Temperature controller device, 8 inputs PT100 probes, 4 relays and serial communication port RS485 full duplex, own ASCII communication protocol
COD.: ME100
ME 100 V2
Temperature controller device, 8 inputs PT100 probes, 5 relays with analogical output 4–20mA referred to the channel with the most high temperature
COD.: ME100 V2
ME 100 V3
Temperature controller device, 8 inputs PT100 probes, 4 relays with MODUBUS – RTU protocol
COD.: ME100 V3
ME 100 E
Temperature controller device, 8 inputs PT100 probes, 4 relays, ETHERNET communication, MODBUS – TCP protocol
COD.: ME100 E
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 (ME 100 – ME 100 V3 – ME 100 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 4-20mA 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 (ME 100 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 for 60”
- Software configuration to control the environment temperature
- Resolution 1°C
- Working temperature of device from -40°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, subnet, gateway by browser web (ME 100 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)