Near-infrared pyrometer CellaCombustion PA 47

with LED display°C°F

Overview
The CellaCombustion PA 47 is a non-contact two-colour pyrometer designed for temperature measurement of sooty flames in coal-fired power stations and incineration plants. The instrument detects near-infrared radiation at two wavelengths and applies an algorithm to correct wavelength-dependent soot emission and optical flame density, providing reliable flame temperature readings for combustion control, emission reduction and slagging minimization.

Special features

• Measuring range: 700 – 1700 °C
• Focusable precision lenses for accurate measurement distance adjustment
• Broadband anti-reflective optics
• 4-digit red LED display, digit height 8 mm, readable at distance
• Test current output for diagnostics
• Standard interfaces: digital I/O, two analogue outputs, USB and RS-485

Properties / Options (summary)
Measuring range: 700 - 1700 °C
Focus distance: 0.4 m - ∞ (standard PZ 20.01)
Spectral range: 0.8 / 1.05 µm
Distance ratio: 80 : 1
Sighting: through-the-lens, laser pilot light or built-in video camera option
Example version: CellaCombustion PA 47 AF 1

Technical data (measurement parameters)
Sensor: double photodiode (two-colour)
Response time t98: ≤ 20 ms (T > 650 °C); ≤ 10 ms (T > 750 °C)
Measurement uncertainty: 1 % of temperature reading
Repeatability: 2 K
Resolution (interface): 0.1 K; display resolution: 1 K

Optical variants
Standard objective PZ 20.01: focus 0.4 m - ∞
Distance ratio: 80 : 1
Measuring field example at 400 mm: Ø 5.00 mm

Electrical parameters
Analogue outputs: 2 × 0(4)–20 mA, linear, switchable, scalable
Resistance: ≤ 500 Ω
Analog input: 0–10 V
Switching outputs: 2 × open collector 24 V DC, ≤ 30 mA
Switching inputs: 2 × up to 24 V
Interfaces: USB, RS-485
Power supply: 24 V DC (+10 % / -20 %); current ≤ 175 mA

Camera / Sighting
Video output (camera version): composite PAL, 1 Vpp, 75 Ω
Sighting options: through-the-lens, laser pilot light, built-in camera (video)

Features & Displays
4-digit LED display (red), status LEDs (2), 3 control buttons
On-board functions: contamination monitoring threshold, soot factor, ATD (automatic temperature detection), measured-value/current simulation, overtemperature signaling (analogue output behaviour if internal temp > 80 °C)

General parameters
Connection: M12, 8-pin
Ambient temperature: 0 – 65 °C
Storage temperature: -20 – +80 °C
Humidity: up to 95 % r.H. (non-condensing)
Dimensions: Ø 65 mm × 220 mm (max. 277 mm)
Housing: stainless steel V2A (1.4305)
Protection class: IP65
Weight: approx. 0.9 kg

Adjustable parameters (examples)
Measuring range, measured variable and scaling, smoothing filter, memory mode, emissivity, transmittance, reflected ambient radiation compensation, alarm limits and modes, ATD parameters (optional), linearization, LED settings, simulated current/temperature, unit °C/°F, measurement channel selection, contamination threshold, soot factor. Camera models: TBC, white balance.

Scope of delivery (typical)
Pyrometer CellaCombustion PA (PA 47)
Connection cable VK 02/A (5 m)
Video cable VK 02/F (5 m) for camera models
USB cable VK 11/D (1.8 m)
Software CellaView
Short manual

Software
CellaView for configuration, data readout and diagnostics

Technical specifications

• Model: CellaCombustion PA 47
• Measuring range: 700 – 1700 °C
• Spectral range: 0.8 / 1.05 µm
• Distance ratio: 80 : 1; focus 0.4 m – ∞; standard objective: PZ 20.01
• Response time: ≤ 20 ms (T > 650 °C); ≤ 10 ms (T > 750 °C)
• Accuracy: 1 % of reading; repeatability: 2 K
• Outputs / Interfaces: 2 analogue outputs (0/4–20 mA), digital I/O, USB, RS-485
• Power: 24 V DC (+10 % / -20 %); current ≤ 175 mA
• Camera option: composite PAL video output
• Protection / Housing: IP65, stainless steel V2A
• Dimensions / Weight: Ø 65 mm × 220 mm (max. 277 mm) / approx. 0.9 kg