Pyrometer CellaCombustion PA 47

The CellaCombustion PA 47 is a special pyrometer for non-contact temperature measurement of sooty flames in coal power plants or waste incineration plants. The measurement and signal processing based on the two-colour method detects the heat radiation of the sooty particles of the flame in the near infrared region at two wavelengths. The burn-out operation can be optimized by the flame temperature, the pollutant emission can be reduced and the slagging of the walls in the combustion chamber can be minimized.


  • Range: 700 to 1700 °C
  • Focusable optics for precise distance adjustment
  • Precision lenses with broadband antireflection coating
  • LED display is easy to read from a distance
  • Test current can be applied to perform diagnostics
  • as standard: digital input / output, two analogue outputs and USB / RS485 interface
Target sighting Measuring range Lens Focus area Distance ratio
through-the-lens video camera
700 – 1700 °C PZ 20.01 0.4 m – ∞ 80 : 1
Measurement parameters
Measuring range 700 – 1700 °C
Sensor Si/Si photo diode
Spectral range 0,8 / 1,05 µm
Response time t98 ≤ 20 ms (T>650 °C)
≤ 10 ms (T>750 °C)
Measurement uncertainty 1 % of temp. reading [°C]
Repeatability 2 K
Temperature coefficient 0.05 %/K
Resolution current output 0.2 K + 0.03 % of selected range
Resolution interface 0.1 K
Resolution display 1 K
Electrical parameters
Analog output 0(4) – 20 mA linear, switchable, scalable
Resistance ≤ 500 Ω
Analog input 0 – 10 V
Switching output 2 x Open Collector 24 V DC, ≤ 30 mA
Switching input 2 x to 24 V
Interface USB, RS 485
Power supply 24 V DC +10 % / -20 %
Current consumption ≤ 175 mA bei 24 V DC
Video output Composite PAL, 1 Vpp, 75 Ω
Sighting option Through-the-lens-sighting, laser spot light, camera
Display 4-digit LED display red, digit-height 8 mm
Status display 2 x LED
Control elements 3 buttons
General parameters
Connection M12 thread 8-pin connection
Ambient temperature 0 – 65 °C
Storage temperature -20 – +80 °C
Permissible humidity 95 % r.H. max. (non-condensing)
Dimension Ø 65 mm x 220 mm (max. 277 mm)
Housing Stainless steel V2A (1.4305)
Protection class IP 65 acc. to DIN 40050
Weight approx. 0.9 kg
Adjustable parameters
Parameters Measuring range
Measured variable and scale of analog input and output signals
Smoothing filter
Memory operation mode
Hold time of the memory
Compensation of the reflected ambient radiation
Limits and operating mode of the alarm contacts
Parameters of the ATD function (optinal)
Linearization function
Status display of the LEDs
Simulation of current and temperature
Temperature unit °C/°F
Measurement channel two-colour, single-colour 1 and single-colour 2
Threshold level of the contamination monitoring
Soot factor

in addition, for model with camera:
TBC function
White balance

Overtemperature signal if the internal temperature exceeds 80 °C the analog output shows a value > 20.5 mA
Service function Simulation of a measured value or a current signal
ATD-(Automatic Temperature Detection) function Automatic temperature detection at discontinuous processes
Scope of delivery
Pyrometer CellaCombustion PA
Connection cable VK 02/A (5 m)
Video cable VK 02/F (5 m) for model with built-in camera
USB cable VK 11/D (1.8 m)
Software CellaView
Manual (short)
  • sooty flames