Pyrometer with LED display CellaTemp® PK 52

°C°FIO-Link

Product overview
The CellaTemp® PK 52 is an infrared pyrometer developed for temperature measurement in flame-heated furnaces. Its selective spectral range around 3.9 µm makes measurements insensitive to water vapour and CO2 in the field of view, enabling accurate readings through flames and combustion gases even at long distances.

Special features

• Measuring range 500 to 2,000 °C
• Universally configurable switching outputs
• High optical resolution from precision lenses
• IO-Link interface for integration and parameterization
• All parameters adjustable via sensor pushbuttons or plant interface
• 2 × PNP open-collector switching outputs
• Simple mounting via M30 central thread
• Large, high-contrast 4-digit LED display

Measurement parameters (excerpt)
Measuring range: 500 - 2000 °C
Sensor: Thermopile
Spectral range: 3.8 - 4.0 µm (optimized for flame measurements)
Response time t90: ≤ 60 ms
Measurement uncertainty: 1 % of temperature reading [°C]
Repeatability: 4 K
Temperature coefficient: 0.04 %/K
Resolution current output: 0.1 K + 0.005 % of selected measuring span
Resolution interface: 0.1 K
Resolution display: 1 K

Electrical parameters (excerpt)
Analog output: 0(4) - 20 mA linear, switchable, scalable
Load resistance: ≤ 500 Ω
Switching output: 2 × PNP open collector, 24 V DC, max. 150 mA each
Test input: 10 - 34 V DC (acc. to 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
Control elements: 3 pushbuttons

General parameters
Connection: M12 5-pin connector (A-coding)
Ambient temperature: 0 - 65 °C (operation)
Storage temperature: -20 to +80 °C
Permissible humidity: up to 95 % r.H. non-condensing
Dimensions: Ø 30 × 210 mm (without plug)
Housing: Stainless steel V2A (1.4305)
Protection class: IP65 (DIN 40050)
Weight: approx. 0.4 kg

Adjustable parameters (examples)
Analog output scaling and damping, quick emissivity adjustment, transmission for protective glass, hold time for peak memory, switching contact configuration (source, threshold, delays), temperature correction via interpolation points, vitality indicator, service parameters, factory reset, key lock, display options (temperature / run), temperature unit °C/°F, temperature simulation

Functions (excerpt)
Overtemperature signal (internal temperature > 75 °C)
Service function: measured value simulation
Diagnostic function: indicates reverse polarity, overload and incorrect supply voltage
Reverse polarity protection for power supply, analog and switching outputs

Scope of delivery
Infrared thermometer CellaTemp® PK 52
Short manual
2 fixing nuts

Software
SW 50

Technical specifications

• Model: CellaTemp® PK 52
• Measuring range: 500 - 2,000 °C
• Spectral range: 3.8 - 4.0 µm (optimized for flame measurements)
• Output options: 0/4 - 20 mA analog, 2 × PNP open-collector switching outputs
• Interface: IO-Link V1.1.3
• Response time: ≤ 60 ms
• Accuracy: 1 % of reading
• Protection class: IP65
• Housing: Stainless steel (Ø 30 × 210 mm)
• Operating temperature: 0 - 65 °C