Fiber optic temperature measurement systems

Fiber optic monitoring devices

Temperature control is crucial in many industrial processes.

Our FOTEMP fiber optic temperature monitoring devices deliver reliable performance even in environments exposed to microwave radiation and high-frequency interference.
They are ideal for high-voltage applications, strong magnetic fields, and demanding industrial settings, ensuring precise temperature measurements to protect critical equipment.



FOTEMP devices support customizable probes, sensors, and accessories, with calibration options from -200°C to +300°C. They integrate seamlessly with our monitoring software, offering comprehensive data logging and intuitive visualization for efficient system oversight.


Contact us and get support with the product selection.

Why buy

  • Turnkey solution
  • Very high accuracy: ± 0.2 °C
  • Intuitive and user-friendly interface
  • Immune to electromagnetic and radio-frequency interferences
  • Immune to microwave radiation
  • Versatile capabilities applicable in a wide range of applications

Application

  • Power transformers
  • Switchgear
  • High voltage applications
  • Nuclear environments
  • Harsh and hazardous environments
  • Instrument application
  • Aerospace applications
  • Process monitoring
  • Laboratories
  • Medical applications

Technical data at a glance

TYPE FOTEMP MN30 FOTEMP HD20 FOTEMP MS10 FOTEMP C15 FOTEMP C20 FOTEMP T20 FOTEMP T30
Number of channels 1 1 or 2 1 – 40 1, 2 or 4 1, 2 or 4 2 to 16 2 to 16
Modules NO NO 10x7TE or 5x14TE NO NO NO 4x up to 4 channels
Measuring range From -200°C up to 300°C From -200°C up to 300°C From -200°C up to 300°C From -200°C up to 300°C From -200°C up to 300°C From -200°C up to 300°C From -200°C up to 300°C
Resolution 0.1 K 0.1 K 0.1 K 0.1 K 0.1 K 0.1 K 0.1 K
Accuracy 0.2 K 0.2 K 0.2 K 0.2 K 0.2 K 1.0 K 1.0 K
Sample rate channel 250 ms 250 ms 250 ms 250 ms 250 ms 250 ms 250 ms
Display NO 3.5” LCD 0.96” on 7TE or 1.92” on 14TE OLED NO 2,8” LCD 4.3” LCD 7” LCD
Analog output none none 0 – 10 V or 4 – 20 mA 0 – 10 V or 4 – 20 mA 0 – 10 V or 4 – 20 mA 0 – 10 V or 4 – 20 mA 0 – 10 V or 4 – 20 mA
Relay none none 1 per channel 1 per channel 1 per channel 2 programmable, 1 sensor fault, 1 watchdog 16 free programmable relays
Interface TTL, RS232, RS485, USB USB, Reference sensor RS232, RS485, USB USB (standard) or RS485 USB (standard) or RS485 RS485, USB, Ethernet RS485, Ethernet, RS232 (debug)
Available protocol Modbus, ASCII ASCII ASCII Modbus, ASCII Modbus, ASCII Modbus, ASCII Modbus, DNP3.0, IEC61850, IEC 60870-104, ASCII
Data logging Continuous or timed logging on microSD Continuous or timed temperature logging, spectrum snapshots NO NO NO Continuous or timed logging on microSD Continuous, and time logging, 32 GB
Power supply USB-Powered (Standard) 9 – 24 VDC 12 VDC 100 – 240 VAC / 50 – 60 Hz 24 VDC 24 VDC 24 VDC 24 VDC
Dimensions 70 x 30 x 29 mm 20 x 112 x 40 mm 7TE or 14TE, 3HE 42 x 160 x 105 mm 160 x 105 x 75 mm 209 x 203 x 109 mm 238 x 190 x 155 mm
Weight 0.2 kg 0.6 kg 8 kg 0.5 kg 0.5 kg 2.0 kg 2.0 kg
Mounting / Housing options Mounting holes none 19” rack mount chassis, 84TE or 42TE Cabinet DIN rail mounting bracket, Pressed nuts, Threaded bolts DIN rail mounting bracket, Pressed nuts, Threaded bolts DIN rail mounting bracket DIN rail mounting bracket or standard mounting brackets
Connector type ST ST ST ST ST ST ST

Application

For embedded instrument applications EMI, RFI and microwave environments High voltage environments Harsh and hazardous environments Nuclear environments Aerospace applications Process monitoring Medical applications Oil-filled transformers MRI and other magnetic field applications
FOTEMP MN30 X X X X X X
FOTEMP HD20 X X X X X X
FOTEMP MS10 X X X X
FOTEMP C15 X X X X X X X X X
FOTEMP C20 X X X X X
FOTEMP T20 X X X X X X X X
FOTEMP T30 X X X X X X X