Full Gauge
MT-512Ri Log
MT-512 Series • Refrigeration Controller
Quick Info
Type
Refrigeration
Application
Freezer
Probe Inputs
2
Relay Outputs
2
Communication
RS485
Panel Size
32x74 mm
Output Functions
R1
Compressor
R2
Defrost
Commercial freezer controller with data logging and RS485
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 4 |
| LED Indicators | Compressor, Defrost, Alarm, Log |
Power Supply
| Voltage | 115/230V AC |
| Voltage Range | 85-264V AC |
| Frequency | 50/60Hz |
| Power Consumption | 4VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | NTC 10K |
| Temp Range | -50 to 105°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 2 |
| Relay Rating | 15A/250VAC |
Physical
| Panel Size | 32x74 mm |
| Depth | 65 mm |
| IP Rating | IP65 (front) |
| Weight | 100 g |
Operating Conditions
| Operating Temp | -10 to 50°C |
| Storage Temp | -20 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| L | Power L | Input |
brown
|
| N | Power N | Input |
blue
|
| S1 | Probe 1 (Room) | Input |
red/white
|
| S2 | Probe 2 (Evap) | Input |
red/white
|
| R1 | Relay 1 (Comp) | Output |
black
|
| R2 | Relay 2 (Def) | Output |
orange
|
| A+ | RS485 A+ | Comm |
yellow
|
| B- | RS485 B- | Comm |
green
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| Set | Setpoint | -50 to 105 | -18 °C | Temperature setpoint |
| Hys | Hysteresis | 0.1 to 30 | 3 °C | Differential |
| dF | Defrost Type | 0=Off, 1=Elec | 1 | Defrost method |
| dt | Defrost Duration | 0 to 255 | 30 min | Max duration |
| dI | Defrost Interval | 0 to 24 | 6 hr | Time between |
| Log | Log Interval | 1 to 60 | 15 min | Data logging interval |
| Add | Modbus Address | 1 to 247 | 1 | Network address |
Error Codes
E1
Room probe fault
Solution: Check probe 1
E2
Evap probe fault
Solution: Check probe 2
LF
Log memory full
Solution: Download data via RS485
Frequently Asked Questions
Use Full Gauge SiTrad software via RS485 connection
Up to 4000 temperature records with timestamp
Alternative Models (Cross Reference)
Dixell XR60CX RS485
Danfoss EKC 202 Log
Manufacturer Information
Brand: Full Gauge
Country: Brazil