The PyroCouple Series is a range of
high quality, low cost, compact sensors
which measure the temperature of
inaccessible or moving objects and
materials. They measure temperatures
from -20°C to 500°C, accurately and
consistently, with an outstanding
response time of 240 ms.
PyroCouple sensors are available as
either two-wire or four-wire units.
Two-wire PyroCouple sensors transmit
the target temperature as a 4-20 mA
output and offer a simple solution
for most non-contact temperature
measurement applications.
Four-wire PyroCouple sensors transmit
the target temperature as a 0-50 mV
or thermocouple output (type J, K or T)
plus the internal sensor temperature as
a 4-20 mA output. This second output
can be used to ensure that the sensor
is being operated within the correct
ambient temperature limits and prevent
damage caused by overheating or
overcooling. It can also be used to give
an approximate indication of the air
temperature surrounding the sensor.
voltage/thermocouple output
sensor temperature
IP65
air purge collar, laser sighting tool
+-
-
+
Display/Controller
4-20mA = Target
4-20mA
Temperature
Power Supply
+-
-
+
4-20mA = Sensor
Temperature
Power Supply
-
+
mV/TC = Target
Temperature
Two-wire units (option 0)
Four-wire units (options 1 to 4)
OP-
OP+
PWR+
PWR-
PWR+
PWR-
Display/Controller
Display/Controller
4-20mA
NEW PyroCouple
Compact Non-Contact Temperature Sensor
shown actual size
Calex Electronics Limited
offers a rigid sup-
a single plane.
The adjustable
consists of a
assembled as shown the adjustable mounting
The air purge
collar is used to
moisture and other
contaminants away from the lens. Air flows into
the front.
The air/water
cooled housing
allows the sensor to
withstand ambient temperatures which exceed
on the degree of cooling required) flows into
other. To prevent condensation forming on the
lens, the air/water cooled housing is supplied
complete with an air purge collar. Please note,
the air/water cooled housing must be ordered
user.
applications where the sensor can be
mounted close to the target. Model
targets and has an optical resolution
very small or distant targets and has an
These compact sensors are small
their rugged stainless steel housings
where cleanliness and hygiene are
paramount.
Temperature Range vs Field-of-View table
Field of View -20ºC to 100ºC 0ºC to 250ºC 0ºC to 500ºC
-
Output table
Model-X Target Temperature Output Sensor Temperature Output
-0 4-20 mA Not available
0-50 mV 4-20 mA
-2 Type T thermocouple 4-20 mA
Type J thermocouple 4-20 mA
-4 Type K thermocouple 4-20 mA
target temperatures of 0ºC to 500ºC plus a 4-20 mA output proportional to internal sensor temperature. For
simplicity, the sensor temperature range is always set the same as the target temperature range
Accuracy
Repeatability
Emissivity
Response Time, t90
Spectral Range
Supply Voltage
Min. Sensor Voltage 6 V DC
Max. Loop Impedance Ω ( 4-20 mA output)
Output Impedance 56 Ω (voltage/thermocouple output)
Construction Stainless Steel
Dimensions
Thread Mounting
Cable Length
Weight with Cable
Environmental Rating IP65
Ambient Temperature Range
Relative Humidity
45.2
0.5
0
0 500
Spot Dia.
(inches)
Spot Dia.
(mm)
Spot Dia.
(inches)
Spot Dia.
(mm)
0.5
2.4
4.4
04
0 200
PC21 PC151
45.2
0.5
0
0 500
Spot Dia.
(inches)
Spot Dia.
(mm)
PC301
