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Biopac FOTS100 - Stand-alone Fiber Optic Temperature

The FOTS100 is a stand-alone fibre-optic temperature measurement system. It can also be used in combination with Biopac's data acquisition systems.

Biopac FOTS100 - Stand-alone Fiber Optic Temperature

This is a stand alone system, but it can also be interfaced to BIOPAC MP Systems.

FOTS100 includes control unit with RS-232 port, ± 5 V analog output, and rubber boot; power via 9 V battery or wall power.

This is a stand alone system, but it can also be interfaced to BIOPAC MP Systems:

    MP160, MP150 or MP100 System: add CBL101 (separate purchase).

    MP36/35 System: add SS70L isolated BNC interface and a BNC-to-RCA cable (separate purchase)

The analog output parameters comprise the scale factor and the offset. The scale factor corresponds to the physical unit per Volt (unit/V) output by the system, while the offset corresponds to the physical value at which the user wants the analog output to be at zero volt. For example, with a scale factor set to 10 °C / V and the offset set to 5 °C, the temperature as a function of the analog output voltage is given by:

Temperature = [Voltage output] x 10 °C / V + 5 °C

The default value of the scale factor is 50 °C / V (or its equivalent in °F) and the default value of the offset is 0 °C (or its equivalent in °F).

During a No Signal condition, constant values are output as follows: analog output value = 0 Volt,  RS-232  serial ports = 65 536.0.

For more details, please see the complete FOTS100 User Manual (

Use with high-accuracy, MRI-compatible fiber optic temperature probes (separate purchase):

TSD180 Rectal Temp Probe: 300 µm OD Polyimide tubing, 8 m

The Polyimide round tubing protects the sensing element its flexibility and rigidity provide excellent pushability.

TSD181 Surface Temp Probe: sensor 1 mm OD, PFA tubing 0.9 mm OD, 8 m cable sheath rated up to 85 °C.

The glass tube at the end of the probe provides a robust protection over the sensing element as well as a firm connection from sensor to cable.

Magnetic Resonance Imaging - MRI Compatible

FOTS100 - Stand-alone Fiber Optic Temperature System Specfications:

Stand-alone system

Output interface: Display, ±5 Volts Analog output, and RS-232 standard
BIOPAC interface for MP1X0: add CBL101 (RCA to 3.5 mm cable) or for MP36/35: add SS70L + BNC-to-RCA cable

Channels: One

Compatibility: TSD180 and TSD181 high accuracy fiber-optic temperature sensors

Accuracy: ±0.3 °C  (Total accuracy - includes both signal conditioner and transducer errors)

Temperature range: 20 °C  to 60 °C  (higher range also available)

Resolution: 0.1 °C

Sampling rate: 50 Hz (20 ms)

Communication protocol: SCPI (default)

Input power: 9 to 24 VDC (AC/DC wall-transformer adapter included)

Consumption: 1.8 Watts typical

Battery: 9 V

Enclosure: Plastic casing with a removable rubber boot protection

Dimensions (without rubber boot protection): 45 mm (H) x 105 mm (W) x 165 mm (L)

Storage temperature: -40 °C to 65 °C

Operating temperature: 0 °C to 45 °C

Humidity: 95 % non condensing

Light source life span: > 150,000 hours (> 17 years) MTBF