Calex PUA2-751-HT-WJ Manual del usuario - Página 2

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PyroUSB Series infrared sensors measure the temperature of surfaces without contact.
They have a linear 2-wire 4 to 20 mA output, which is compatible with almost any indicator,
controller, recorder or data logger without the need for special interfacing or signal
conditioning.
A choice of measurement wavelengths and temperature ranges is available to suit a range of
applications.
General-purpose PUA8 (8-14 μm) models can measure from -40°C to 1000°C. They
are suitable for measuring high-emissivity materials such as paper, thick plastics, food,
pharmaceuticals, rubber, asphalt and painted surfaces.
Short-wavelength PUA2 (2.2 μm) models have a choice of temperature ranges from 45°C to
2000°C. They provide a more accurate reading when measuring low-emissivity materials such
as many reflective metals. They are also capable of measuring through glass viewports.
Glass PUA5 (5 μm) models can measure from 200°C to 1650°C. They are filtered at a
wavelength where glass is least reflective, making them ideal pyrometers for glass surface
temperature measurement.
SPECIFICATIONS
Model
Spectral Response
Application
Temperature range
Response time
Output
Communications
Optics
Accuracy
Repeatability
Emissivity Setting
Maximum Span
(4-20 mA output)
Minimum Span
(4-20 mA output)
ELECTRICAL
Supply Voltage
Sensor Voltage (minimum)
Maximum Loop Impedance
2
PUA2
2.0 to 2.6 µm
(2.2 µm nominal)
Ferrous metals and
high-temperature
targets
Choice of ranges
from 45°C to
2000°C
2-wire, 4-20 mA, linear with measured temperature
USB 2.0 (removable USB cable and software included) using the
Choice of optics for small or large targets at short or long distances
± 2°C or 1% of
reading, whichever
is greater
± 0.5°C or 0.5% of reading, whichever is greater
24 V DC (28 V DC max)
6 V DC
900 Ω @ 24 V DC
PUA5
5 µm
Glass
Choice of ranges
from 50°C to
1650°C
200 ms
Modbus protocol
(see Optics)
± 1°C or 1% of reading, whichever is greater
0.1 to 1.0
Full temperature range
100°C
PUA8
8 to 14 µm
General purpose
-40°C to 1000°C