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Pyrometer CellaWafer PA 38

Article description

The CellaWafer PA 38 is a digital pyrometer for measuring temperature of wafers from 450 to 1,800 °C. Due to its very short-wave and narrow-band measuring wavelength, this pyrometer is particularly suitable for measurements on silicon wafers and metals (tungsten, molybdenum,..). Furthermore, it reacts insensitively to changes in the emissivity of the measuring object.

Special features:
  • Measuring range 450 to 1800 °C-- focusable interchangeable lenses for exact adjustment of the measuring distance-- broadband anti-reflective precision lenses-- short-wave and narrow-band spectral range-- particularly suitable for precise measurements on metals and on silicon wafers-- 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
Pyrometer CellaWafer PA 38
Properties
Version
Measuring range
450 - 1800 °C
Focal range
0,3 m - ∞
Through-the-lens sighting
Your selection will impact other settings.
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Version CellaWafer PA 38 AF 10 
Measuring range 450 - 1800 °C 
Focal range 0,3 m - ∞ 
Shape of the measuring field round 
Distance ratio 40 : 1 
Objective PA 20.08 
Measuring principle one-color 
Sighting option Through-the-lens sighting 
Sighting option Laser pilot light 
Sighting option Video camera 

Technical Data Downloads Measurement field calculator Accessories Emissivity calculator Application request

Pyrometer CellaWafer PA 38

Technical Data

Measurement parameters

Measuring range 450 - 1800 °C
Sensor Photodiode
Spectral range 0.82 - 0.93 µm
Response time t98 ≤ 50 ms (T > 650 °C)
≤ 2 ms (T > 850 °C)
Measurement uncertainty 0.3 % of temp. reading [°C] min. 4 K
Repeatability 1 K
Temperature coefficient 0.05 %/K
Resolution current output 0.2 K + 0.03 % of selected measuring span
Resolution interface 0.1 K
Resolution display 1 K

Optical variants

Objective lenses Objektiv F50 PZ 20.08: Fokussierung 0,3 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 at 24 V DC

video camera

Video output Composite PAL, 1 Vpp, 75 Ω

Equipment

Sighting option through-the-lens sighting
Sighting option Laser pilot light
Sighting option video camera
Display 4 x 7 segments LED red, digit height 8 mm
Status display 2 x LED
Operator controls 3 pushbuttons

General parameters

Connection M12 screw connection 8-pin
Ambient temperature 0 - 65 °C
Storage temperature -20 - +80 °C
Permissible air humidity 95 % RH max. (non-condensing)
Dimension Ø 65 mm x 220 mm (max. 277 mm)
Housing material Stainless steel V2A (1.4305)
Type of protection IP 65 acc. to DIN 40050
Weight approx. 0.9 kg

Adjustable parameters

Parameters Measuring range
Measured variable and scaling of analogue input and output signals
Smoothing filter
Memory operation mode
Holding time of the memory
Emissivity
Transmittance
Compensation of background radiation
Limit values 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

additionally for pyrometer with camera:
TBC funktion
White balance

Functions

Overtemperature signal if the internal temperature exceeds 80 °C, the analog output shows a value > 20.5 mA
Service function Simulation of a measured value or a current signal
ATD (Automatic Temperature Detection) function Automatic temperature detection at discontinuous processes

Scope of delivery

Scope of delivery Pyrometer CellaTemp PA
Connection cable VK 02/A (5 m)
Video cable VK 02/F (5 m) for model with built-in camera
USB cable VK 11/D (1.8 m)
CellaView software
Operating manual (short)

Software

Software CellaView

Pyrometer CellaWafer PA 38

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

Pyrometer CellaWafer PA 38

Downloads

Brochure CellaTemp PA
us
Brochure Supplementary lenses
us
Brochure CellaView
us
Manual CellaTemp PA 1x 2x 3x
us
Quick guide CellaTemp PA 1x 2x 3x
us
Declaration of conformity Declaration of Conformity PAxx
us
UKCA Declaration of Conformity PAxx
us
EAC Deklaration PK-PA-PT
us

Pyrometer CellaWafer PA 38

Accessories

Pyrometer CellaWafer PA 38

IO-Link IODD

Pyrometer CellaWafer PA 38

IO-Link Manufacturer declaration

Pyrometer CellaWafer PA 38

Measurement field calculator

Pyrometer
  • PA 38 AF 10 (0,3 m - ∞)
PA 38 AF 10 (0,3 m - ∞)
Focal range
mm
Length of the graph
mm
Measuring distance (mm)0244872961201441681922162402642887.50 mm
Measuring distanceMeasuring field diameter
0.00 mm24.40 mm
12.00 mm23.72 mm
24.00 mm23.05 mm
36.00 mm22.37 mm
48.00 mm21.70 mm
60.00 mm21.02 mm
72.00 mm20.34 mm
84.00 mm19.67 mm
96.00 mm18.99 mm
108.00 mm18.32 mm
120.00 mm17.64 mm
132.00 mm16.96 mm
144.00 mm16.29 mm
156.00 mm15.61 mm
168.00 mm14.94 mm
180.00 mm14.26 mm
192.00 mm13.58 mm
204.00 mm12.91 mm
216.00 mm12.23 mm
228.00 mm11.56 mm
240.00 mm10.88 mm
252.00 mm10.20 mm
264.00 mm9.53 mm
276.00 mm8.85 mm
288.00 mm8.18 mm
300.00 mm7.50 mm
Pyrometer LLC – Pyrometer Instrument Company

Attn: Service Department
70 Weber Avenue
Ewing, NJ 08638 USA
Telephone: 609-443-5522

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