Near-infrared thermometer CellaTemp® PX 36

fiber opticwith LED display°C

Product overview
The CellaTemp® PX 36 is a digital fibre-optic pyrometer for non-contact temperature measurement from 650 to 3,000 °C. The system features a separate optical measuring head connected by a fibre-optic cable, enabling measurements in confined or electromagnetically noisy environments. The measuring head and fibre are heat resistant up to 250 °C without additional cooling.

Key features

• Measuring range: 650–3,000 °C
• Modern IO-Link interface for digital communication
• Focusable interchangeable lenses for accurate adjustment of measuring distance
• Broadband anti-reflective precision optics
• Readout via high-contrast LED display
• All parameters adjustable via onboard buttons
• Diagnostic test-current output
• 1 analogue output (0/4–20 mA) and 2 switching outputs (open collector)
• Configurable source and ATD (automatic temperature detection)
• Measuring head and fibre heat resistant up to 250 °C

Measurement parameters

• Spectral range: 0.82 – 0.93 µm
• Sensor: Photodiode
• Response time t98: ≤ 50 ms (T > 680 °C); ≤ 2 ms (T > 900 °C)
• Measurement uncertainty: 0.75 % of reading [°C]
• Repeatability: 2 K
• Resolution (interface): 0.1 K; (display): 1 K

Optical variants

• PA 41.01 (M30): focus 0.2 m – ∞
• PA 41.05 (M16): focus 0.12 m – ∞
• PZ 41.18 (M16): focus 0.033 – 0.045 m

Electrical parameters

• Analogue output: 0(4)–20 mA, linear, switchable, scalable
• 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)

Display & controls

• 4-digit red LED display, digit height 8 mm
• Status: 4 × LED
• Control: 3 buttons on housing
• Sighting: laser pilot light

General parameters

• Housing: Stainless steel V2A (1.4305), protection class IP65
• Ambient temperature (electronics): 0 – 65 °C; measuring head up to 250 °C
• Storage temperature: -20 – +80 °C
• Connection: M12, 5-pin
• Dimensions (electronics): Ø 65 mm × 187 mm; weight ≈ 0.9 kg

Adjustable parameters

• Analogue output scaling and smoothing
• Emissivity and transmittance settings
• Alarm limits and operating mode
• ATD parameters (automatic temperature detection)
• Simulation of current and temperature; unit °C/°F

Functions

• Overtemperature signal (internal temperature > 75 °C)
• Service function: simulation of measured value or current signal

Scope of delivery

• Pyrometer CellaTemp® PX 36 (electronic unit)
• Connection cable VK 02/L AF 1 (5 m)
• Measuring head (type dependent)
• Short manual
• Note: fibre-optic cable ordered separately

Software
SW 50

Measuring field (examples)
Examples of measuring distance — field diameter:
0.00 mm — 21.50 mm
8.00 mm — 20.68 mm
16.00 mm — 19.86 mm
200 mm (typical): 1.05 mm diameter