Pyrometer without display CellaTemp® PR 18

°CKIO-Link

Product description
The CellaTemp® PR 18 is equipped with a specially resistant lens that enables operation in extreme environments such as asphalt and concrete mixing plants, protecting the lens from aggressive vapours and dust. Compact pyrometer without display, with analogue and IO-Link outputs for easy integration into PLC and fieldbus-independent systems.

Special features:

• Compact infrared thermometer
• Standardised PLC- and fieldbus-independent IO-Link interface
• Analogue output 0/4 - 20 mA
• Wide measuring ranges with high temperature resolution
• High optical resolution and measurement accuracy due to broadband anti-reflective precision lenses
• Universally configurable switching output
• Easy mounting via M30 central thread

Measurement parameters
Measuring range: 0 - 500 °C
Sensor: Thermopile
Spectral range: 8 - 14 µm
Response time t90: ≤ 60 ms
Measurement uncertainty: 0.75 % of temp. reading [°C] plus 2.0 K
Repeatability: 1 K
Temperature coefficient: 0.1 K/K (T < 250 °C); 0.04 %/K (T > 250 °C)
Resolution current output: 0.2 K + 0.03 % of selected range
Resolution interface: 0.1 K

Electrical parameters
Analog output: 0(4) - 20 mA linear, switchable, scalable
Resistance: ≤ 500 Ω
Switching output: Open Collector 24 V DC, ≤ 150 mA
Test input: 10 - 34 V DC (acc. to IEC 61131-2)
Interface: IO-Link
Power supply: 24 V DC +10 % / -20 %
Current consumption: ≤ 50 mA at 24 V DC

General parameters
Connection: M12 screw connection 4-pin (A coded)
Ambient temperature: 0 - 65 °C
Storage temperature: -20 - +80 °C
Permissible humidity: 95 % r.H. max. (non-condensing)
Dimension: Ø 30 x 185 mm (without plug)
Housing: Stainless steel V2A (1.4305)
Protection class: IP 65 acc. to DIN 40050
Weight: approx. 0.4 kg

Adjustable parameters

• Analog output 0/4 - 20 mA; scaling of the analogue output
• Emissivity
• Damping time constant
• Hold time of maximum value memory
• Operation mode and switching points of the switching contact
• Reset to factory setting
• Temperature unit °C/°F
• Simulation of temperature

Functions
Overtemperature signal; Error/event signalling via digital interface; Service function: simulation of a measured value; Reverse polarity protection for power supply, analogue output and switching output

Scope of delivery
Infrared thermometer CellaTemp PR; Short manual; 2 fixing nuts

Version / Typical properties
Version: CellaTemp PR 18 AF 1
Measuring range (AF 1): 0 - 500 °C
Target size: 11 mm
Focus distance (AF 1): 0.3 m
Shape of the measuring field: round
Measuring principle: one-colour

Measuring field table (Measuring distance | Measuring field diameter)
0.00 mm | 16.50 mm
12.00 mm | 16.28 mm
24.00 mm | 16.06 mm
36.00 mm | 15.84 mm
48.00 mm | 15.62 mm
60.00 mm | 15.40 mm
72.00 mm | 15.18 mm
84.00 mm | 14.96 mm
96.00 mm | 14.74 mm
108.00 mm | 14.52 mm
120.00 mm | 14.30 mm
132.00 mm | 14.08 mm
144.00 mm | 13.86 mm
156.00 mm | 13.64 mm
168.00 mm | 13.42 mm
180.00 mm | 13.20 mm
192.00 mm | 12.98 mm
204.00 mm | 12.76 mm
216.00 mm | 12.54 mm
228.00 mm | 12.32 mm
240.00 mm | 12.10 mm
252.00 mm | 11.88 mm
264.00 mm | 11.66 mm
276.00 mm | 11.44 mm
288.00 mm | 11.22 mm
300.00 mm | 11.00 mm

Characteristics / technical specifications

• Model: CellaTemp PR 18 (PR series)
• Brand: Keller
• Measuring range: 0 - 500 °C
• Spectral range: 8 - 14 µm
• Optical target size (at 300 mm): 11.00 mm
• Response time: ≤ 60 ms
• Interface: IO-Link + analogue 0/4 - 20 mA
• Switching output: Open Collector 24 V DC, ≤ 150 mA
• Supply: 24 V DC (+10 % / -20 %) / ≤ 50 mA
• Housing: Stainless steel V2A (Ø 30 x 185 mm)
• Protection class: IP65
• Weight: approx. 0.4 kg
• Scope of delivery: pyrometer, short manual, 2 fixing nuts