Pyrometer with LED display CellaTemp® PKF 66
°C°FIO-Link

Pyrometer with LED display - CellaTemp® PKF 66 - Keller Pyrometer Systems - °C / °F / IO-Link
Pyrometer with LED display - CellaTemp® PKF 66 - Keller Pyrometer Systems - °C / °F / IO-Link
Pyrometer with LED display - CellaTemp® PKF 66 - Keller Pyrometer Systems - °C / °F / IO-Link - image - 2
Pyrometer with LED display - CellaTemp® PKF 66 - Keller Pyrometer Systems - °C / °F / IO-Link - image - 3
Pyrometer with LED display - CellaTemp® PKF 66 - Keller Pyrometer Systems - °C / °F / IO-Link - image - 4
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Characteristics

Display
with LED display
Units of measurement
°C, °F
Communication
analog output, IO-Link
Protection level
IP65
Configuration
screw-in
Other characteristics
stainless steel, with fiber optic, glass
Temperature

Max.: 1,800 °C
(3,272 °F)

Min.: 700 °C
(1,292 °F)

Spectral range

Max.: 1.05 µm

Min.: 0.95 µm

Response time

10 ms

Description

Product description
The CellaTemp® PKF 66 separates the electronics from the measuring head and transmits infrared radiation via a fibre-optic cable to the electronics. The measuring head is metal/glass only and can operate without cooling at ambient temperatures up to 250 °C, making it suitable for confined mounting locations and high electromagnetic fields. Fibre lengths up to 50 m are available. The PK series integrates a vitality indicator (SMART) for continuous self-monitoring, analysis and status reporting to support predictive maintenance and indicate optimal service and calibration intervals.

Special features
  • Measuring range 700 to 1,800 °C
  • Fibre-optic version: fibre length up to 50 m
  • Universally configurable switching output
  • High optical resolution with precision lenses
  • IO-Link interface
  • All parameters adjustable via sensor pushbuttons or plant interface
  • 2 × switching outputs PNP open collector
  • Simple mounting via M30 central thread
  • Large, bright 4-digit LED display


Measuring field (excerpt)
  • 0.00 mm — 23.40 mm
  • 8.00 mm — 22.51 mm
  • 16.00 mm — 21.61 mm
  • 24.00 mm — 20.72 mm
  • 32.00 mm — 19.82 mm
  • 40.00 mm — 18.93 mm
  • 48.00 mm — 18.04 mm
  • 56.00 mm — 17.14 mm
  • 64.00 mm — 16.25 mm
  • 72.00 mm — 15.35 mm
  • 80.00 mm — 14.46 mm
  • 88.00 mm — 13.57 mm
  • 96.00 mm — 12.67 mm
  • 104.00 mm — 11.78 mm
  • 112.00 mm — 10.89 mm
  • 120.00 mm — 9.99 mm
  • 128.00 mm — 9.10 mm
  • 136.00 mm — 8.20 mm
  • 144.00 mm — 7.31 mm
  • 152.00 mm — 6.42 mm
  • 160.00 mm — 5.52 mm
  • 168.00 mm — 4.63 mm
  • 176.00 mm — 3.73 mm
  • 184.00 mm — 2.84 mm
  • 192.00 mm — 1.95 mm


Measuring field (example)
  • 200.00 mm — 1.05 mm


Measuring heads / optical variants
  • AF 1: PA 41.01 (M30): Focusing 0.2 m - ∞
  • AF 2: PKS 21.01 (M30): Focusing 1.08 m
  • AF 3: PA 41.05 (M16): Focusing 0.12 m - ∞
  • AF 4: PZ 41.18 (M16): Focusing 0.033 - 0.045 m
  • AF 5: PA 41.03 (M30): Focusing 1.8 m (sealed)


Scope of delivery (standard)
Infrared thermometer CellaTemp PKF, measuring head, short manual, 2 fixing nuts. Fibre-optic cable ordered separately.

Technical specifications
  • Measuring range: 700 - 1800 °C
  • Measurement principle: Two-colour
  • Sensor: Double photodiode
  • Spectral range: 0.95 / 1.05 µm
  • Response time t90: ≤ 10 ms (T > 800 °C)
  • Measurement uncertainty: 1 % of reading + 3.0 K
  • Repeatability: 2 K
  • Temperature coefficient: 0.05 %/K
  • Resolution current output: 0.1 K + 0.005 % of selected span
  • Resolution interface: 0.1 K
  • Resolution display: 1 K
  • Analog output: 0(4) - 20 mA, linear, switchable, scalable
  • Analog output load: ≤ 500 Ω
  • Switching outputs: 2 × PNP open collector 24 V DC, 2 × 150 mA max.
  • Test input: 10 - 34 V DC (acc. to IEC 61131-2)
  • Interface: IO-Link V1.1.3
  • Supply: 18 - 32 V DC
  • Current consumption: ≤ 50 mA at 24 V DC
  • Display: 4-digit red LED, digit height 8 mm
  • Status indicators: 3 × LED
  • Controls: 3 buttons
  • Connection: M12 5-pin (A-coding)
  • Ambient temperature (measuring head): 0 - 65 °C
  • Storage temperature: -20 - +80 °C
  • Permissible humidity: 95 % r.H. max. (non-condensing)
  • Dimensions: Ø 30 × 210 mm (without plug)
  • Housing: Stainless steel V2A (1.4305)
  • Protection class: IP 65 (DIN 40050)
  • Weight: approx. 0.4 kg
  • Adjustable parameters: analog output scaling, ratio correction, protective glass transmission, damping time, max hold, switching contact parameters, temperature correction via interpolation points, vitality indicator, service parameters, factory reset, key lock, temperature unit °C/°F, temperature simulation, ...
  • Functions: overtemperature signal (internal temp > 75 °C), service simulation, DTD (Discontinuous Temperature Detection), diagnostics (reverse polarity, overload, wrong supply voltage), reverse polarity protection

Exhibitions

Meet this supplier at the following exhibition(s):

HärtereiPraxis 2026
HärtereiPraxis 2026

22-24 Jun 2026 Kamp-Lintfort im Wellings Parkhotel (Germany)

Shenzhen International Semiconductor & IC Exhibition
Shenzhen International Semiconductor & IC Exhibition

9-11 Sep 2026 Shenzhen (China)

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.