Pyrometer with LED display CellaTemp® PK 68

°C°F4-20 mA

Overview:
The CellaTemp PK 68 is a digital two-colour pyrometer for industrial temperature measurement from 550 to 1,400 °C. The two-colour measuring principle reduces sensitivity to interferences such as dust, vapour, contaminated protective windows or changing emissivity compared with single-colour pyrometers. The PK 68 generation includes a vitality indicator and SMART self-monitoring for continuous recording of operating data and support of preventive maintenance.

Special features:

• Measuring range 550 to 1,400 °C
• Universal configurable switching output
• High optical resolution via precision lenses
• IO-Link interface (V1.1.3)
• Parameter setting via sensor buttons or plant control interface
• 2 × PNP open collector switching outputs
• Simple mounting with M30 central thread
• Large, bright 4-digit LED display

Version / Key data:
Version: CellaTemp PK 68 BF 1
Measuring range: 550 - 1400 °C
Target size: 21 mm at 1.5 m focus distance
Measuring field shape: round
Measuring principle: two-colour (double photodiode)

Measurement parameters (summary):
Sensor: double photodiode
Spectral range: 0.95 / 1.05 µm
Response time t90: ≤ 10 ms (T > 650 °C)
Measurement uncertainty: 1 % of reading
Repeatability: 2 K
Temperature coefficient: 0.05 %/K
Resolution analog output: 0.1 K + 0.005 % of span
Resolution interface: 0.1 K
Resolution display: 1 K

Electrical parameters:
Analog output: 0(4)-20 mA, linear, scalable
Load resistance: ≤ 500 Ω
Switching outputs: 2 × PNP open collector, 24 V DC, 150 mA max each
Test input: 10 - 34 V DC (IEC 61131-2)
Interface: IO-Link V1.1.3
Supply voltage: 18 - 32 V DC
Current consumption: ≤ 50 mA at 24 V DC

Display and controls:
Display: 4-digit red LED, digit height 8 mm
Status indicators: 3 LEDs
Control: 3 push buttons

General parameters:
Connection: M12 5-pin (A-coding)
Ambient temperature: 0 - 65 °C
Storage temperature: -20 - +80 °C
Permissible humidity: max. 95 % r.H. (non-condensing)
Dimensions: Ø 30 × 210 mm (without plug)
Housing: Stainless steel V2A (1.4305)
Protection class: IP65 (DIN 40050)
Weight: approx. 0.4 kg

Adjustable parameters (examples):
Analog scaling and 0/4-20 mA selection, damping time constant, max-value hold, operating mode, switching points and delays, temperature correction via interpolation, vitality indicator, service parameters, factory reset, key lock, °C/°F, temperature simulation

Functions:
Overtemperature alarm (internal > 75 °C), service simulation, DTD (Discontinuous Temperature Detection), diagnostics (reverse polarity, overload, wrong supply), reverse polarity protection for supply and outputs

Scope of delivery:
Infrared thermometer CellaTemp PK 68, short manual, 2 fixing nuts

Software:
SW 50 (IO-Link software)

Measuring field (examples):
Measuring distance - Measuring field diameter
0.00 mm - 15.00 mm
60.00 mm - 15.24 mm
120.00 mm - 15.48 mm
180.00 mm - 15.72 mm
240.00 mm - 15.96 mm
300.00 mm - 16.20 mm
600.00 mm - 17.40 mm
900.00 mm - 18.60 mm
1,500.00 mm - 21.00 mm

Technical specifications:

• Model: CellaTemp PK 68
• Measuring range: 550 - 1,400 °C
• Measuring principle: two-colour, 0.95 / 1.05 µm
• Optics / target size: 21 mm at 1.5 m (examples in table)
• Response time: ≤ 10 ms (T > 650 °C)
• Accuracy: 1 % of reading; repeatability 2 K
• Outputs: 0(4)-20 mA; 2 × PNP switching outputs
• Interface: IO-Link V1.1.3
• Power: 18 - 32 V DC; ≤ 50 mA
• Housing & protection: stainless steel, IP65
• Display & controls: 4-digit LED, 3 status LEDs, 3 buttons
• Dimensions / weight: Ø 30 × 210 mm; approx. 0.4 kg
• Included: short manual and 2 fixing nuts