TempTrak® RT351 Specifications


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: 4-20 mA (Linear with 0 - 300° C)
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: Current: ±0.20% full scale, 25-85° C ambient temperature
Frequency: ±0.40% full scale, 25-85° C ambient temperature
Operating Temperature: 0°C - 100 °C
Humidity: 0 – 90% RH, non-condensing

Wiring Code

Frequency and Speed Output (Dienes):
Terminal 1: Supply voltage (+Vf) (+12 VDC nominal)
Terminal 2: Supply Voltage low (Common)
Terminal 3: Speed output

Standard Current Output (4-20 mA):
Terminal 2: Current output low (-I)
Terminal 4: Supply voltage (+Vi) (+15 VDC nominal)
Terminal 5: Current output high (+I)

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

Specifications subject to change without prior notification.