Pyrometer with LED display CellaTemp® PX 40

°C°F4-20 mA

Product description:
The CellaTemp® PX 40 is a digital two-colour pyrometer for measuring temperatures from 500 to 3,000 °C. The two-colour (quotient) measuring method reduces sensitivity to disturbances such as dust and steam in the field of view, soiled protective windows or varying surface conditions compared with single-colour pyrometers. For precise targeting of the measurement object, the instrument can be equipped with through-the-lens sighting, a laser pilot light or a video camera module.

Special features:

• Measuring range: 500 to 3,000 °C
• IO-Link interface
• Focusable interchangeable lenses for adapting measuring distance
• Broadband anti-reflective precision optics
• High-visibility LED display
• All parameters adjustable via built-in keypad
• Test current output for diagnostics
• 1 analog output and 2 switching outputs
• Configurable source / measurement channel
• ATD function for automatic temperature detection
• SCM contamination monitoring

Additional product information:
Available targeting options: through-the-lens sighting, laser pilot light, video camera module. Focusable lens system with multiple objectives and close-up/macro lenses for short measuring distances. Camera option provides composite PAL video output for alignment and observation.

Technical specifications:

• Measuring principle: two-colour (quotient)
• Measuring range: 500 - 3000 °C (in segments)
• Sensor: dual photodiode
• Spectral range: 0.95 / 1.05 µm
• Response time t98: varies by range (examples: 500–1400 °C ≤ 10 ms (T > 650 °C); 650–1700 °C ≤ 20 ms (T > 650 °C) / ≤ 10 ms (T > 750 °C); 750–2400 °C ≤ 10 ms (T > 950 °C); 850–3000 °C ≤ 10 ms (T > 1050 °C))
• Measurement uncertainty: 1 % of 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
• Analog output: 0(4)–20 mA, linear, switchable, scalable
• Load for analog output: ≤ 500 Ω
• Switching outputs: 2 × open collector 24 V DC, ≤ 150 mA
• Interface: IO-Link
• Power supply: 24 V DC +10 % / -20 %
• Current consumption: ≤ 175 mA (24 V DC)
• Video output (camera model): Composite PAL, 1 Vpp, 75 Ω
• Display: 4-digit red LED (digit height 8 mm)
• Status display: 4 × LED
• Controls: 3 buttons (keyboard-adjustable parameters)
• Dimensions: Ø 65 mm × 220 mm (max. 277 mm)
• Housing: Stainless steel V2A (1.4305)
• Protection class: IP65 (according to DIN 40050)
• Weight: approx. 0.9 kg
• Connection: M12 thread, 5-pin
• Ambient temperature (operation): 0 - 65 °C
• Storage temperature: -20 - +80 °C
• Permissible humidity: max. 95 % r.H. (non-condensing)
• Scope of delivery (example): Pyrometer CellaTemp PX, connection cable VK 02/L AF 1 (5 m), video cable VK 02/F (5 m) for camera models, brief manual
• Adjustable parameters (selection): analog output scaling, smoothing filter, memory/hold mode, emissivity, transmittance, alarm limits and modes, ATD parameters, simulation of current and temperature, unit °C/°F, measurement channel selection (two-colour / single-colour)
• Functions (selection): overtemperature alarm, service simulation, ATD for discontinuous processes, contamination monitoring (SCM)
• Optical variants / lenses (selection): macro lens PA 40.01 (focus 0.086 - 0.115 m) for highest temperature ranges; standard objective PZ 20.01 (0.4 m - ∞); close-up PZ 20.03 (0.2 - 0.4 m); wide-angle PZ 20.05 (0.2 m - ∞); telephoto PZ 20.06 (1.2 m - ∞); telephoto PA 20.06 (0.6 m - ∞) — lens choice depends on AF version / measuring range