Shortwave infrared spot CellaTemp® PA 69

Product overview:
The CellaTemp® PA 69 is a digital two-colour pyrometer for contactless temperature measurement from 300 to 800 °C. The dual-wavelength method reduces sensitivity to dust, dirty protection windows and changing emissivity of measurement surfaces. Multiple sighting options (through-the-lens, laser pilot light or optional camera module) enable precise aiming. The EERC (Extended Emissivity Ratio Correction) algorithm compensates wavelength-dependent emissivity changes for aluminium and bare metals.

Special features:

• Measuring range: 300–800 °C
• EERC algorithm for wavelength-dependent emissivity compensation
• Focusable, interchangeable lenses for exact distance adjustment
• Broadband anti-reflective precision optics
• High-visibility LED display
• Test current output for diagnostics
• Standard outputs: analogue (0/4–20 mA) and USB / RS-485 interface

Measurement parameters:

• Sensor: double photodiode (two-colour)
• Spectral bands: 1.50 μm and 1.90 μm
• Response time t98: ≤ 30 ms
• Measurement uncertainty: 1 % of reading
• Repeatability: 2 K
• Resolution (display/interface/current): 1 K / 0.1 K / 0.2 K + 0.03% span
• Temperature coefficient: 0.05 %/K

Optical variants:

• Standard objective: PZ 20.08 (Objektiv F50 PZ 20.08), focusing 0.3 m – ∞
• Standard distance ratio: 39 : 1
• Measuring field shape: round

Sighting options:

• Through-the-lens sighting
• Laser pilot light
• Video camera module (optional)

Electrical parameters:

• Analog output: 0(4)–20 mA linear, switchable, scalable; resistance ≤ 500 Ω
• Analog input: 0–10 V
• Switching outputs: 2 × open collector 24 V DC, ≤ 30 mA
• Switching inputs: 2 × up to 24 V
• Interfaces: USB, RS-485
• Supply: 24 V DC (+10 % / -20 %); current consumption ≤ 175 mA

Video camera (if equipped):

• Video output: Composite PAL, 1 Vpp, 75 Ω

Equipment / built-in features:

• Display: 4 × 7-seg LED red (digit height 8 mm)
• Status display: 2 LEDs
• Operator controls: 3 pushbuttons
• Standard connectors: M12 8-pin

General parameters:

• Ambient temperature (operation): 0 – 65 °C
• Storage temperature: -20 – +80 °C
• Permissible humidity: 95 % RH max. (non-condensing)
• Dimensions: Ø 65 mm × 220 mm (max. 277 mm)
• Housing: stainless steel V2A (1.4305), protection class IP65
• Weight: approx. 0.9 kg

Adjustable parameters:

• Measuring range and analogue scaling
• Smoothing filter, memory mode and hold time
• Emissivity and transmittance
• Background radiation compensation
• Alarm thresholds and contact operation modes
• ATD parameters (optional), linearization, LED status settings
• Simulation of current/temperature; unit selection °C/°F
• Measuring channel selection: two-colour, single-colour 1/2
• Contamination monitoring threshold; camera functions (TBC, white balance) if fitted

Functions:

• Overtemperature signal (internal > 80 °C → analog output > 20.5 mA)
• Service simulation of measured value or current signal
• ATD (Automatic Temperature Detection) for discontinuous processes

Scope of delivery (examples):

• Pyrometer CellaTemp PA 69
• Connection cable VK 02/A (5 m)
• USB cable VK 11/D (1.8 m)
• Video cable VK 02/F (5 m) for camera models (if applicable)
• CellaView configuration software
• Short operating manual

Software:

• CellaView (configuration and analysis)

Measuring field examples (selected):
Measuring distance (mm) → field diameter (mm): 0 → 24.50; 12 → 23.83; 24 → 23.16; 36 → 22.48; 48 → 21.81; 60 → 21.14; 72 → 20.47; 84 → 19.79; 96 → 19.12; 108 → 18.45; 120 → 17.78; 132 → 17.10; 144 → 16.43; 156 → 15.76; 168 → 15.09; 180 → 14.42; 192 → 13.74; 204 → 13.07; 216 → 12.40; 228 → 11.73; 240 → 11.05; 252 → 10.38; 264 → 9.71; 276 → 9.04; 288 → 8.36; 300 → 7.69.

Technical specifications (summary):

• Model: CellaTemp® PA 69
• Measuring principle: two-colour (dual wavelength)
• Measuring range: 300–800 °C
• Spectral bands: 1.50 μm & 1.90 μm
• Response time: ≤ 30 ms (t98)
• Accuracy: 1 % of reading; repeatability 2 K
• Distance ratio (standard lens): 39 : 1
• Outputs: analogue current, switching outputs, USB, RS-485
• Supply: 24 V DC (+10 % / -20 %), IP65, stainless steel housing