The FibreCube provides fast and precise temperature measurements in demanding applications.
Measurements as low as 100°C are possible, with a response time of just 1 ms. The sensing head contains no electronics, and may be used in ambient temperatures of up to 150°C with no need for cooling.
Very small objects can be measured. A measurement spot as small as 0.4 mm is available with standard optics, and even smaller with special optics (contact Calex).
For measuring small targets at long distances, the FibreCube is the most capable of any Calex sensor, with measured spot sizes as small as 6 mm at 1 metre distance.
A built-in bright green LED aiming light illuminates the exact size and location of the measured spot, so the sensor is easy to aim with total precision.
The fibre optic cable is made to order, with lengths of up to 10 m or 28 m available depending on the model. The length can be specified to the nearest metre.
All models can measure through glass or quartz viewport windows.
FC-TL 100°C to 1500°C
FC-TM 180°C to 2000°C
FC-TH 240°C to 2000°C
FC-PL 220 to 1650°C
FC-PM 300 to 2000°C
FC-PH 400 to 2000°C
FC-AL 500 to 2000°C
FC-AM 600 to 2000°C
FC-AH 700 to 2000°C
Green LED, through-lens (shows size and location of measurement area)
Accuracy of Measurement
Measurements below 800°C: ±4°C
800°C to 1200°C: ±0.5% of reading
1000°C to 2000°C: ±1.0% of reading
±2°C ±0.2% of reading
Measurements within 50°C of minimum of measurement temperature range: 3°C
Measurements within 50°C of minimum of measurement temperature range: 1°C
Response Time (95%)
Analogue output: 0.001 to 5 s
Adjustable via averaging function
1 analogue output
1 alarm output
Digital RS-232 communications
Analogue Output Type
4-20 mA (this is the default factory setting on all models)
Output type can be changed via optional PM030 touch screen interface or RS-232 to a choice of:
0-1 V DC (other voltage ranges available, contact Calex)
Analogue Output Scale
Full temperature range depending on model
Adjustable via optional touch screen module or RS232
RS232C Modbus RTU, non-isolated
Output swing width: ±4 V approx.
Baud rate: 4800, 9600, 19200, 38400, 57600, 115200 bps (selectable)
Measured Spot Diameter
From 0.4 mm depending on measurement distance and choice of optics (see Field of View Diagrams below)
1 open drain alarm output, rated 27 V DC, 0.2 A
Adjustable, 0°C to 99.9°C
Peak hold function
0.01 to 10 s, time or discharge mode, configurable
Adjustable, 0.3 to 1.0 (default setting 0.95) in 0.001 increments
Emissivity may be set as low as 0.05 with reduced accuracy
24 V DC
(allowable range: 4.7 to 27 V DC)
0.1 A max
Output Cable Connection to Sensor
Connector built into sensor
Touch Screen Display Format
2.83” (72 mm) resistive touch TFT, 320 x 240 pixels, backlit
Language (English, Chinese, Japanese)
Temperature units °C/°F
LED sighting on/off
Date & time (for data logging time stamps)
Peak hold period, decay level
Emissivity setting (with teach function)
Reflected energy compensation (with teach function)
Output temperature range
Polarity on error
Alarm mode, levels, hysteresis
PM030 Data Logging Specifications
MicroSD Card (optional), max. 32 GB, equal to 16 years of data at the fastest sample rate of 1 per second
Data Logging Interval
1 second to 1 day (configurable)
Internal Clock Battery
1 x BR 1225 3V (not included)
Instantaneous target temperature, hold temperature, alarm events
Configurable Parameters (Data Logging)
Number of samples
Configurable Parameters (Alarm Logging)
Log times when triggered, acknowledged, reset
Log data while triggered
Field of View Diagrams (click to expand)
Each optics option is available for one FibreCube temperature range only (M, L, or H). For example: for FC-AM sensors, choose from the “M” optics.
Note: Smaller measured spot sizes are available. If these options are not suitable, contact Calex to discuss special optics.
The given measured spot size contains 90% of the energy detected by the sensor. We normally recommend the target is at least twice as large as the given measured spot for maximum accuracy.
Accuracy specifications are valid up to the maximum distances shown.
Sensor body with 1 m fibre optic cable: 155 g
2 m output cable: 160 g
Environmental Specifications (PyroCube Sensor)
Operating Ambient Temperature
0°C to 150°C (sensing head and fibre optic cable)
0°C to 50°C (electronics module)
-15°C to 70°C
Operating Ambient Humidity
30% to 85% RH non-condensing
||Optional touch screen terminal for indication, configuration, data logging and alarm outputs. Sensor is available with or without display.
The FibreCube may be installed with or without the PM030 touch screen interface.
Connections (with optional PM030 display/interface unit)
Connections (sensor only)
The FibreCube sensor may be ordered with or without the PM030 touch screen interface.