Two-color pyrometer CellaTemp® PA 61

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Product overview:
The CellaTemp® PA 61 is a digital two-colour pyrometer with a separate optical measuring head and fibre optic cable for non-contact temperature measurement in industrial environments. It is designed for temperatures between 375 and 1,200 °C and is suitable for applications where electromagnetic interference or confined installation space requires a remote optical head.

Key features:

• Measuring range: 375–1,200 °C
• Focussable interchangeable lenses for precise adjustment of measuring distance
• Broadband anti-reflective precision optics
• Short measuring wavelengths (1.5 / 1.9 µm)
• Readable LED display at a distance
• Test current output for diagnostic function
• Standard analogue output and USB/RS-485 interface
• Measuring head and fibre optic cable heat resistant up to 250 °C

Properties / Versions (summary):
Measuring range: 375 - 1200 °C
Focus distance: 0.12 m - ∞
Sighting option (example): laser pilot light
Version example: CellaTemp PA 61 AF 21 (measuring head PA 41.05, focusing 0.12 m - ∞)
Measuring field shape: round
Distance ratio: 40 : 1
Measuring principle: two-colour

Technical data (measurement parameters):
Measuring range: 375 - 1200 °C
Sensor: double photodiode
Spectral range: 1.5 / 1.9 µm
Response time t98: ≤ 30 ms
Measurement uncertainty: 1.5 % of temperature reading [°C]
Repeatability: 3 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

Optical variants:
Measuring heads: PA 41.05 (M16): focusing 0.12 m - ∞

Electrical parameters:

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

Features:

• Sighting: laser pilot light
• Display: 4-digit red LED, digit height 8 mm
• Status display: 2 × LED
• Control: 3 buttons

General parameters:
Connection: M12 thread 8-pin
Ambient temperature: electronics 0 - 65 °C; measuring head up to 250 °C
Storage temperature: -20 - +80 °C
Permissible humidity: 95 % r.H. max. (non-condensing)
Housing: stainless steel V2A (1.4305)
Protection class: IP65 (DIN 40050)
Weight: approx. 0.9 kg

Adjustable parameters (selected):

• Measuring range and channel selection (two-colour, single-colour 1 or 2)
• Emissivity and transmittance
• Compensation of reflected ambient radiation
• Smoothing filter and memory operation
• Alarm thresholds and operating mode
• ATD function parameters and linearization
• Simulation of current and temperature; unit °C/°F

Functions:

• Overtemperature signal: analogue output > 20.5 mA if internal temperature > 80 °C
• Service function: simulation of measured value or current signal

Scope of delivery:

• Pyrometer CellaTemp PA
• Connection cable VK 02/A (5 m)
• Measuring head
• USB cable VK 11/D (1.8 m)
• Software CellaView
• Short manual

Software:
CellaView configuration and diagnostic software

Specifications:

• Model: CellaTemp® PA 61
• Measuring range: 375 - 1,200 °C
• Spectral range: 1.5 / 1.9 µm
• Response time (t98): ≤ 30 ms
• Accuracy: 1.5 % of temperature reading
• Repeatability: 3 K
• Distance ratio: 40 : 1
• Measuring field shape: round
• Interface: USB and RS-485
• Analogue output: 0(4) - 20 mA, linear, switchable
• Power supply: 24 V DC (+10 % / -20 %)
• Operating ambient temperature: electronics 0 - 65 °C; measuring head up to 250 °C
• Protection class: IP65
• Housing: Stainless steel V2A (1.4305)
• Display: 4-digit red LED (8 mm)
• Weight: approx. 0.9 kg