TempTrak® RT300 Specifications

The RT300 series utilizes a digital transmitter circuit and digital controller interface circuit. Its inductive power and data transfer scheme is completely noncontact. Components are completely interchangeable and will handshake and adjust power levels as required. Different models are available to accommodate from one to four RTD signals.

Number of Sensors:

Models available for 1-4 sensors

Sensor Input:

PT100 RTD (100 at 0°C, a =.00385, two wire) standard (other configurations available including nonstandard RTDs)

Sensor Range:

0° to 300°C standard (other configurations available)

Sensor Connection:

(Transmitter) #4-40 screw terminals with socket-head cap screws
(designed for #4 ring terminals on customer sensor leads)

Output Connection:

(Controller Interface) Quick connect screw terminal block

Output Signal:

Discrete 4-20 mA current source (each channel) and/or frequency signal (Dienes and Rieter compatible)


±0.3% span over operating range

Ambient Temperature:

Rotating Unit: 0°C – 100°C
Stationary Housing: 0°C – 100°C
Controller Interface: 0°C – 85°C
Humidity: 0-90% RH, non-condensing

Power Input:

22-35 VDC or 17-27 VAC; 2A max, 0.5A nominal

Rotor Speed:

10,000 RPM maximum


Rotating Unit: 2 lb.
Stationary Housing: 3 lb.
Controller Interface: 1 lb.

Specifications subject to change without prior notification.