Pyrometer with LED display CellaTemp® PA 35

°CRS485USB

Product overview:
The CellaTemp® PA 35 is a digital pyrometer for non-contact temperature measurement from 600 to 3,500 °C. Its short-wave, narrow-band spectral response reduces sensitivity to emissivity changes and to obstructions in the field of view (dust, vapour) or soiled protective windows. It is optimized for surface temperature measurement on metals (tungsten, molybdenum, etc.) and silicon wafers. The instrument offers interchangeable focusable optics and a high-visibility 4-digit LED display.

Special features:

• Measuring range: 600 to 3,500 °C
• Focusable, interchangeable lenses for precise adjustment of measuring distance
• Broadband anti-reflective precision optics
• Short-wave, narrow-band spectral range (0.82–0.93 µm)
• Suited for accurate measurements on metals and silicon wafers
• 4-digit red LED display, readable at a distance (8 mm digit height)
• Test current output for diagnostic checks
• Standard outputs: analogue and USB / RS 485

Sighting / aiming options:

• Through-the-lens sighting
• Laser pilot light
• Video camera (models with built-in camera provide composite PAL video output)

Optical / lens variants & typical focus ranges:
Standard lens PZ 20.01: focusing 0.4 m - ∞
Close-up lens PZ 20.03: focusing 0.2 m - 0.4 m
Wide-angle lens PZ 20.05: focusing 0.2 m - ∞
Telephoto lens I PZ 20.06: focusing 1.2 m - ∞
Telephoto lens II PA 20.06: focusing 0.6 m - ∞

Interfaces and outputs:
Analogue output: 0(4)–20 mA linear, switchable, scalable
Analogue input: 0–10 V
Switching outputs: 2 × Open Collector 24 V DC, ≤ 30 mA
Switching inputs: 2 × up to 24 V
Interfaces: USB and RS 485
Power supply: 24 V DC +10 % / -20 % (current consumption ≤ 175 mA at 24 V DC)

Display, controls and diagnostics:
4-digit red LED display (8 mm digit height), 2 status LEDs, 3 control buttons. Service functions: measured value/current simulation, error/overtemperature signalling (if internal temp > 80 °C analogue output shows > 20.5 mA).

Scope of delivery (typical):

• Pyrometer CellaTemp PA (PA 35)
• 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)
• CellaView configuration software
• Short manual

Measuring field table (examples):
Measuring distance 0.00 mm = Measuring field diameter 18.00 mm
16.00 mm = 17.36 mm
32.00 mm = 16.71 mm
48.00 mm = 16.07 mm
64.00 mm = 15.42 mm
80.00 mm = 14.78 mm
96.00 mm = 14.14 mm
112.00 mm = 13.49 mm
128.00 mm = 12.85 mm
144.00 mm = 12.21 mm
160.00 mm = 11.56 mm
176.00 mm = 10.92 mm
192.00 mm = 10.27 mm
208.00 mm = 9.63 mm
224.00 mm = 8.99 mm
240.00 mm = 8.34 mm
256.00 mm = 7.70 mm
272.00 mm = 7.06 mm
288.00 mm = 6.41 mm
304.00 mm = 5.77 mm
320.00 mm = 5.12 mm
336.00 mm = 4.48 mm
352.00 mm = 3.84 mm
368.00 mm = 3.19 mm
384.00 mm = 2.55 mm
400.00 mm = 1.90 mm

Note on software / tools:
CellaView software enables device configuration and analysis. Online tools (measuring field calculator, emissivity calculator) support setup and application planning.

Technical specifications:

• Measuring range: 600–3,500 °C
• Sensor: photodiode
• Spectral range: 0.82–0.93 µm
• Response time t98: ≤ 50 ms (T > 650 °C); ≤ 2 ms (T > 850 °C)
• Measurement uncertainty: 0.3 % of reading, min. 4 K
• Repeatability: 1 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
• Measuring principle: one-colour
• Measuring field shape: round
• Distance ratios (example by lens/version): AF 11 = 210:1, AF 12 = 200:1, AF 13 = 310:1, AF 14 = 55:1, AF 15 = 430:1
• Analogue output resistance: ≤ 500 Ω
• Switching outputs: 2 × Open Collector 24 V DC, ≤ 30 mA
• Switching inputs: 2 × up to 24 V
• Interfaces: USB and RS 485
• Power supply: 24 V DC +10 % / -20 %
• Current consumption: ≤ 175 mA (24 V DC)
• Video output (camera models): Composite PAL, 1 Vpp, 75 Ω
• Display: 4-digit red LED (8 mm digit height)
• Status display: 2 × LED
• Control elements: 3 buttons
• Connection: M12 thread 8-pin
• Operating ambient temperature: 0–65 °C
• Storage temperature: -20–+80 °C
• Permissible humidity: 95 % r.H. max. (non-condensing)
• Dimensions: Ø 65 mm × 220 mm (max. 277 mm)
• Housing: Stainless steel V2A (1.4305)
• Protection class: IP 65 (DIN 40050)
• Weight: approx. 0.9 kg
• Adjustable parameters: measuring range, scaling, smoothing filter, memory mode/hold time, emissivity, transmittance, reflected ambient radiation compensation, alarm limits/modes, ATD function parameters (optional), linearization, LED status display, simulation functions; additional camera functions for camera models: TBC, white balance
• Functions: overtemperature signalling, service simulation functions, ATD (Automatic Temperature Detection) for discontinuous processes