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Pyrometer CellaTemp PA 31

The CellaTemp® PA 31 is a digital pyrometer with a fibre optic cable for measuring temperatures between 550 and 2,500 °C. The pyrometer is equipped with a separate optical measuring head and a fibre optic cable. The fibre optic cable and measuring head are insensitive to interference from electromag

Pyrometer CellaTemp PA 31

Article description



The CellaTemp® PA 31 is a digital pyrometer with a fibre optic cable for measuring temperatures between 550 and 2,500 °C. The pyrometer is equipped with a separate optical measuring head and a fibre optic cable. The fibre optic cable and measuring head are insensitive to interference from electromagnetic radiation and can be used in ambient temperatures up to 250 °C without cooling. The variant with separate optical measuring head has advantages especially in confined spaces.

Special features:
  • Measuring range 550 to 2,500 °C
  • focusable interchangeable lenses for exact adjustment of the measuring distance
  • broadband anti-reflective precision lenses
  • short measuring wavelengths
  • LED display can be read from a great distance
  • test current output for the diagnostic function
  • standard feature: analogue output and USB/RS 485 interface
  • measuring head and fibre optic cable heat resistant up to 250 °C
Pyrometer CellaTemp PA 31
Properties
Version
Measuring range
550 - 2500 °C
Focus distance
0,033 - 0,045 m
Laser pilot light
Your selection will affect other settings
You can request this article from us

Version CellaTemp PA 31 AF 11 
Version CellaTemp PA 31 AF 21 
Version CellaTemp PA 31 AF 22 
Version CellaTemp PA 31 AF 901 
Measuring range 550 - 2500 °C 
Measuring range 700 - 3000 °C 
Focus distance 0,2 m - ∞ 
Focus distance 0,12 m - ∞ 
Focus distance 0,033 - 0,045 m 
Focus distance 0,5 m - ∞ 
Shape of the measuring field round 
Distance ratio 190 : 1 
Distance ratio 100 : 1 
Distance ratio 50 : 1 
Distance ratio 340 : 1 
Measuring head PA 41.01 
Measuring head PA 41.05 
Measuring head PZ 41.18 
Measuring head PA 41.02 
Measuring principle one-colour 
Sighting option Laser pilot light 

Technical Data Downloads Measuring field calculator Accessories Emissivity calculator Application request

Pyrometer CellaTemp PA 31

Technical Data

Measurement parameters

Measuring range 550 - 3000 °C in several segments
Sensor Photo diode
Spectral range 0.78 - 1.06 µm
Response time t98 Measuring range 550 - 2500 °C:
≤ 50 ms (T > 600 °C)
≤ 2 ms (T > 800 °C)

Measuring range 700 - 3000 °C:
≤ 50 ms (T > 750 °C)
≤ 2 ms (T > 950 °C)
Measurement uncertainty 0.75 % of temp. reading [°C]
Repeatability 2 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 Measuring range 550 - 2500 °C:
PA 41.01 (M30): Focusing 0.2 m - ∞
PA 41.05 (M16): Focusing 0.12 m - ∞
PZ 41.18 (M16): focusing 0.033 - 0.045 m

Measuring range 700 - 3000 °C:
PA 41.02 (M16): Fokussierung 0,5 m - ∞

Electrical parameters

Analog output 0(4) - 20 mA linear, switchable, scalable
Resistance ≤ 500 Ω
Analog input 0 - 10 V
Switching output 2 x Open Collector 24 V DC, ≤ 30 mA
Switching input 2 x to 24 V
Interface USB
Interface RS 485
Power supply 24 V DC +10 % / -20 %
Current consumption ≤ 175 mA for 24 V DC

Features

Sighting option Laser pilot light
Display 4-digit LED display red, digit-height 8 mm
Status display 2 x LED
Control elements 3 buttons

General parameters

Connection M12 thread 8-pin connection
Ambient temperature Electronic: 0 - 65 °C
Measuring head: 250 °C
Storage temperature -20 - +80 °C
Permissible humidity 95 % r.H. max. (non-condensing)
Dimension Electronic: Ø 65 mm x 187 mm
Measuring head: depending on the type
Housing Stainless steel V2A (1.4305)
Protection class IP 65 acc. to DIN 40050
Weight approx. 0.9 kg

Adjustable parameters

Parameters Measuring range
Measured variable and scale of analogue input and output signals
Smoothing filter
Memory operation mode
Hold time of the memory
Emissivity
Transmittance
Compensation of the reflected ambient radiation
Limits and operating mode of the alarm contacts
Parameters of the ATD function (optional)
Linearization function
Status display of the LEDs
Simulation of current and temperature
Temperature unit °C/°F

Functions

Overtemperature signal if the internal temperature exceeds 80 °C the analogue output shows a value > 20.5 mA
Service function Simulation of a measured value or a current signal

Scope of delivery

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
Manual (short)
* The fibre optic cable must be ordered separately.

Software

Software CellaView

Pyrometer CellaTemp PA 31

Emissivity calculator

The correct emissivity to be set on the pyrometer is calculated from the measured value displayed on the pyrometer, the true object temperature, the emissivity preset on the pyrometer and the ambient temperature (necessary for some types).
From the true object temperature, the emissivity of the measurement object, the emissivity set on the pyrometer and the ambient temperature (required for types), the measured value calculated by the pyrometer is displayed.
Pyrometer
Quotient
  • Two-colour mode
  • One-colour 1
  • One-colour 2
Preset emissivity
Emissivity ratio to be set
Ambient temperature
Object temperature
Measured value of the pyrometer
Pyrometer
Quotient
  • Two-colour mode
  • One-colour 1
  • One-colour 2
Preset emissivity
Measured value of the pyrometer
Ambient temperature
Object temperature
Emissivity ratio to be set

Pyrometer CellaTemp PA 31

Downloads

Brochure CellaTemp PA
en
Brochure CellaView
en
Manual CellaTemp PA 21 31 36
en
Declaration of conformity Declaration from Conformity PAxx
en
UKCA Declaration from Conformity PAxx
en
EAC Deklaration PK-PA-PT
en

Pyrometer CellaTemp PA 31

Accessories

Pyrometer CellaTemp PA 31

IO-Link IODD

Pyrometer CellaTemp PA 31

IO-Link Manufacturer explanation

Pyrometer CellaTemp PA 31

Measuring field calculator

Pyrometer
  • PA 31 AF 11 (0,2 m - ∞)
  • PA 31 AF 21 (0,12 m - ∞)
  • PA 31 AF 22 (0,033 - 0,045 m)
  • PA 31 AF 901 (0,5 m - ∞)
PA 31 AF 11 (0,2 m - ∞)
Focus distance
mm
Graphic length
mm
Measuring distance (mm)0816243240485664728088961041121201281361441521601681761841922001.05 mm
Measuring distanceMeasuring field diameter
0.00 mm21.50 mm
8.00 mm20.68 mm
16.00 mm19.86 mm
24.00 mm19.05 mm
32.00 mm18.23 mm
40.00 mm17.41 mm
48.00 mm16.59 mm
56.00 mm15.77 mm
64.00 mm14.96 mm
72.00 mm14.14 mm
80.00 mm13.32 mm
88.00 mm12.50 mm
96.00 mm11.69 mm
104.00 mm10.87 mm
112.00 mm10.05 mm
120.00 mm9.23 mm
128.00 mm8.41 mm
136.00 mm7.60 mm
144.00 mm6.78 mm
152.00 mm5.96 mm
160.00 mm5.14 mm
168.00 mm4.32 mm
176.00 mm3.51 mm
184.00 mm2.69 mm
192.00 mm1.87 mm
200.00 mm1.05 mm