Pyrometer with LED display CellaCombustion PK 75

°C4-20 mAIO-Link

Product description:
The CellaCombustion PK 75 performs temperature measurement at a specific CO2-sensitive wavelength where hot carbonaceous flue gases exhibit high optical density and reliable radiative properties. Designed for flue-gas temperature monitoring in gas-fired boilers and small combustion systems, the PK 75 belongs to the CellaTemp® PK series and features the Vitality indicator — a SMART self-monitoring, analysis and reporting function that continuously records operating data and supports preventive maintenance by signalling recommended service and calibration times based on operating conditions.

Special features:

• Measuring range: 400–2000 °C (model-dependent)
• Compact stainless-steel housing Ø30×210 mm
• Universally configurable switching outputs
• High optical resolution with precision lenses
• IO-Link interface (V1.1.3)
• On-sensor pushbuttons or remote parameter setting via plant interface
• 2 × PNP open-collector switching outputs
• Simple mounting using M30 central thread
• Large, high-visibility 4-digit LED display

Technical data — Measurement parameters:
Measuring range: 400–2000 °C
Sensor: Thermopile
Spectral range: CO2 band (wavelength optimized for carbonaceous gases)
Response time (t90): ≤ 60 ms
Measurement uncertainty: 1 % of reading
Repeatability: 4 K
Temperature coefficient: 0.04 %/K
Resolution (current output): 0.1 K + 0.005 % of span
Resolution (interface): 0.1 K
Resolution (display): 1 K

Electrical parameters:
Analog output: 0(4)–20 mA linear, switchable, scalable
Load (output): ≤ 500 Ω
Switching outputs: 2 × PNP open collector, 24 V DC, 150 mA max.
Test input: 10–34 V DC (per IEC 61131-2)
Interface: IO-Link V1.1.3
Power supply: 18–32 V DC
Current consumption: ≤ 50 mA at 24 V DC

Features:
Display: 4-digit red LED, digit height 8 mm
Status indicators: 3 × LED
Controls: 3 pushbuttons (local configuration)

General parameters:
Connection: M12 5-pin (A-coding)
Operating ambient: 0–65 °C
Storage temperature: -20–+80 °C
Permissible humidity: max. 95 % r.H. (non-condensing)
Housing: Stainless steel V2A (1.4305), Protection class IP65
Dimensions: Ø30 × 210 mm (without plug)
Weight: ≈ 0.4 kg

Adjustable parameters (selection):
Analog output scaling, emissivity quick-adjust, protective-glass transmission, damping time constant, max-hold time, switching contact mode/source/points/delays, temperature correction via interpolation points, Vitality indicator settings, service parameters, factory reset, key lock, display selection °C/°F, temperature simulation.

Functions:
Overtemperature alarm (internal >75 °C), test function (button or test input), service simulation, diagnostics (reverse polarity, overload, wrong supply), reverse-polarity protection for power, analogue and switching outputs.

Scope of delivery:
Infrared pyrometer CellaCombustion PK, short manual, 2 fixing nuts

Software:
SW 50 (IO-Link software)

Measuring field / Optics (example):
Version example: PK 75 BF 1
Configured measuring range: 400–2000 °C
Target size (at 0.4 m): 7 mm
Focus distance: 0.4 m
Measuring field shape: round
Measuring principle: one-colour

Technical specifications:

• Model: CellaCombustion PK 75
• Series: PK
• Measuring range: 400–2000 °C
• Target size (at 0.4 m): 7 mm
• Sensor technology: Thermopile
• Interface: IO-Link V1.1.3
• Analog output: 0(4)–20 mA
• Switching outputs: 2 × PNP open collector
• Power supply: 18–32 V DC
• Protection class: IP65
• Housing: Stainless steel V2A (1.4305)
• Dimensions: Ø30 × 210 mm (without plug)
• Weight: ≈ 0.4 kg