TempTrak® RT350 Specifications

The RT351 is a single-channel temperature measurement system designed to monitor temperature on heated godet roll shells. The system features Dienes-compatible output signals for temperature and speed as well as a linear 4-20 mA output for use with standard process controllers. Error detection modes protect the heater from damage and expedite troubleshooting in the event of a sensor or other failure. Digital circuitry from sensor input to signal output and generous clearance between the rotating and stationary components make the RT351 a robust and reliable element in the temperature feedback loop.


Number of Sensors: 1
Input Sensor Type: PT100 RTD (100Ω at 0°C, α =.00385)
Sensor Range: 0-300°C
Speed: 10,000 RPM


Output Connection: M3-0.5 screw terminals, or 8 ft (3.8m) unterminated cable, 6-conductor
Output Signals: Discrete 4-20 mA current source
Frequency signal (Dienes curve: 362.48 - 749.86 Hz)
Power Input: For frequency output (Dienes compatible) (+Vi): 11 - 15 VDC
For current output (standard 4 - 20 mA) (+Vi): 14 - 25 VDC


Accuracy (max error): Current: ±0.20% FS, 25-85°C ambient
Frequency: ±0.40% FS, 25-85°C ambient
Operating Temperature: 0°C - 100 °C


Frequency and Speed (Dienes)

Terminal 1: Supply voltage (+12VDC nominal)
Terminal 2: Supply voltage low (Common)
Terminal 3: Speed output

Current Output (4-20 mA)

Terminal 4: Supply voltage (+15VDC nominal)
Terminal 5: Current output high (+I)
Terminal 2: Current output low (-I)

Both frequency and current output signals can be used individually or simultaneously but each must be powered accordingly.

Specifications subject to change without prior notification.