PyroBus non-contact temperature sensor with rs485 modbus interface

PyroBus non-contact temperature sensor with rs485 modbus interface
PyroBus
Non-Contact Temperature Sensor
with RS485 Modbus Interface
An innovative range of compact infrared
pyrometers with built-in digital communications for
easy systems integration
• Wide temperature range from -20°C
to 500°C
•Built-in RS485 Modbus RTU Interface
•Configurable emissivity setting and
signal processing
•Max; min; average and instantaneous readings; peak or valley hold;
reflected energy compensation
• 2:1, 15:, 30:1 or close focus optics
• Fast response with high stability
•Stainless steel housing, sealed to IP65
• Quick and easy installation
•Optional air/water cooled housing,
air purge collar, laser sighting tool
and mounting brackets
•Optional PM240 Touch-Screen
Terminal for configuring and displaying
data from up to eight PyroBus sensors
The PyroBus 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.
Two-way digital communications via a built-in RS485 Modbus RTU interface enables the user to adjust the emissivity setting;
compensate for reflected energy; apply filtering; select maximum, minimum, average or instantaneous readings; and peak or valley
hold processing. Up to thirty two sensors can be installed on a single multidrop network.
All PyroBus sensors are fitted with precision Germanium lenses for accurate optics. Model PB21 has 2:1 optics making it suitable for
most applications where the sensor can be mounted close to the target. Model PB151 is designed for small or distant targets and
has an optical resolution of 15:1. Model PB301 is designed for very small or distant targets and has an optical resolution of 30:1.
Model PBCF is designed for targets as small as ø5mm at a distance of 100mm from the sensor.
These compact sensors are small enough to fit almost anywhere and their rugged stainless steel housings make them ideal for
applications where cleanliness and hygiene are paramount.
General Specifications
Mechanical
Temperature Range
-20°C to 500°C
ConstructionStainless Steel
Interface
RS485 Modbus RTU
Dimensions
Accuracy
±1% of reading or ±1ºC
Thread MountingM16 x 1 mm pitch
whichever is greater
Cable Length
1m (longer lengths available to order)
Repeatability
± 0.5% of reading or ± 0.5ºC
Weight with Cable
95 g
whichever is greater
Emissivity
0.2 to 1.0
Response Time, t90
240 ms (90% response)
Spectral Range
8 to 14 μm
Supply Voltage
12 V DC nominal (6 - 13 V DC)
Supply Current
50 mA max.
Baud Rate
9600 baud *
Format
8 data bits, no parity, 1 stop bit *
18 mm diameter x 103 mm long
ENVIRONMENTAL
Environmental RatingIP65
Ambient Temperature
0ºC to 70ºC
Relative Humidity
95% max. non-condensing
* Other configurations available upon request
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM SENSING HEAD
3.1
1.8
0.5
61.9
0
100
111.9
200
Distance: Sensor to object (mm)
PB21
Distance: Sensor to object (inches)
0
19.7
39.4
1.1
1.8
0.5
11.9
0
45.2
500
78.6
1000
Distance: Sensor to object (mm)
PB151
Distance: Sensor to object (inches)
0
3.9
7.9
0.5
0.20
0.49
11.9
5.0
12.5
0
100
200
D:S 30:1
D:S 15:1
Spot Dia.
(mm)
Spot Dia.
(mm)
D:S 2:1
11.9
39.4
Spot Dia.
(inches)
0.5
19.7
11.9
0
28.6
500
45.2
1000
Distance: Sensor to object (mm)
PB301
Spot Dia.
(mm)
2.4
Distance: Sensor to object (inches)
0
Spot Dia.
(inches)
8
4.4
Spot Dia.
(mm)
4
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
0
Distance: Sensor to object (mm)
PBCF
The PM240 is a 320x240 pixel touchscreen terminal with a 3.5”colour TFT
display. It allows the user to display
data from up to eight PyroBus sensors
and configure each sensor individually.
The configuration parameters include
emissivity setting, signal averaging, peak
or valley hold processing and reflected
energy compensation.
There are two versions available. Each
one provides all of the features above,
however, the enhanced PM240E also
provides analogue transmission for up to
four sensors, plus two adjustable alarm
outputs per sensor for all eight sensors.
PM240 SPECIFICATIONS
Display
LCD type TFT 320 x 240, 3.5” touch screen
Resistive
Supply Voltage
PM240E
12 to 24 V DC
Power Consumption
Panel cut-out
132 x 89 mm
-0/+1 mm
PM240
8W
Ambient Temperature Range
0°C to 45°C
Relative Humidity
35% to 95%, non-condensing
Environmental Rating
IP54 (front), IP30 (housing)
2-6 mm
Dimensions
140mm wide x 100mm tall x 44mm deep (PM240)
140mm wide x 100mm tall x 65mm deep (PM240E)
Outputs (PM240E only)
4 analogue outputs, 0 to 10 V DC,
16 programmable alarm outputs,12/24 V DC,
700 mA, (3 A max. per block of 8 outputs).
HARDWARE AND SOFTWARE DATA
Serial port EXP1
RS485 Modbus RTU interface for PyroBus
sensors
Serial port COM2
RS485 / RS232 interface for second display
(read only)
PyroBus with Modbus Master
Power Supply
12 VDC
+ -
PyroBus with PM240
Power Supply
12 VDC
+ Analogue transmission &
alarm outputs (PM240E only)
PyroBus Sensor #1
PyroBus Sensor #1
Modbus
Master
PyroBus Sensor #32
-
-
+
+
RS485- EXP1
PyroBus Sensor #8
COM2 RS485- EXP1
RS485+
RS485+
PM240
Sensor Configuration
& Display
RS+ RS- PWR+ PWRRS+ RS- PWR+ PWR-
Optional PM240
or other Modbus
Master
(Display only)
All PyroBus Series Sensors are supplied with a stainless steel mounting nut and are easy to install.
Standard sensors will operate in ambient temperatures up to 70°C. For more hostile environments or difficult mounting
conditions a wide range of accessories is available.
Accessories
Fixed mounting bracket
The L-shaped fixed mounting bracket offers a rigid support for the sensor and
allows fine adjustment in a single plane.
Adjustable mounting bracket
The adjustable mounting bracket consists of a fixed mounting bracket plus
another L-shaped bracket. When assembled as shown the adjustable mounting
bracket offers a rigid support for the sensor and allows fine adjustment in two
planes.
Air purge collar
The air purge collar is used to keep dust, fumes, moisture and other
contaminants away from the lens. Air flows into the fitting on the side and out of
the aperture at the front.
Air/water cooled housing
The air/water cooled housing allows the sensor to withstand ambient
temperatures which exceed the normal 70°C limit. Air or water (depending on the
degree of cooling required) flows into one of the fittings on the side and out of the
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 with the sensor and cannot be fitted by the user.
Laser Sighting Tool
The Laser Sighting Tool screws onto the front of the sensor during installation
and indicates precisely where the sensor is aiming. Once the sensor has been
aimed at the centre of the target and locked in position the Laser Sighting Tool
can be removed. The laser is activated by means of a push button on the front
of the tool which has a latching mechanism.
Calex Electronics Limited
Issue C - July 10
Specifications subject to change without notice
PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 Lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
PyroCouple M
Two-Piece Non-Contact Temperature Sensor
The PyroCouple M Series is
a range of miniature infrared
temperature sensors with
separate electronics.
PyroCouple M sensors
are capable of measuring
temperatures in the range -20°C
to 500°C and are available
with either a current, voltage or
thermocouple output.
General Specifications
Temperature Range (other sub ranges to order)
Field of View
-20ºC to 100ºC
0ºC to 250ºC
0ºC to 500ºC
2:1
PCM21LT-X
PCM21MT-X
-
15:1
PCM151LT-X
PCM151MT-X
PCM151HT-X
30:1
PCM301LT-X
PCM301MT-X
PCM301HT-X
ø 5mm @ 100mm
PCMCFLT-X
PCMCFMT-X
PCMCFHT-X
See table
Accuracy
±1% of reading or ±1°C whichever is greater
Repeatability
±0.5% of reading or ±0.5°C whichever is greater
Emissivity
Fixed at 0.95
Response Time, t90
240 ms (90% response)
Spectral Range
8 to 14 µm
Power
24 V DC (13 V DC to 28 V DC max)
Max. Loop Impedance
750 Ω (4-20 mA output)
Output Impedance
56 Ω (voltage/thermocouple output)
MECHANICAL
Sensing head
Electronics Module
Construction
Stainless Steel
Die-cast Aluminium
Dimensions
18 mm dia. x 45 mm long
98mm x 64mm x 34mm
Thread Mounting
M16 x 1 mm pitch
Cable Length
1 m
Weight with Cable
205 g
IP65
0°C to 70°C
Relative Humidity
95% max. non-condensing
61.9
0
100
111.9
200
Distance: Sensor to object (mm)
0
19.7
39.4
1.1
1.8
0.5
11.9
0
45.2
500
78.6
1000
Distance: Sensor to object (mm)
PCM21
PCM151
Spot Dia.
(inches)
3.1
D:S 15:1
Spot Dia.
(mm)
11.9
39.4
Distance: Sensor to object (inches)
0
3.9
7.9
0.5
0.20
0.49
11.9
5.0
12.5
0
100
200
D:S 30:1
11.9
0
28.6
500
45.2
1000
Spot Dia.
(mm)
19.7
1.8
Spot Dia.
(inches)
0
0.5
Distance: Sensor to object (inches)
Spot Dia.
(mm)
8
4.4
2.4
Spot Dia.
(inches)
Spot Dia.
(inches)
4
0.5
D:S 2:1
Spot Dia.
(mm)
Issue C - July 10
Specifications subject to change without notice
0
Distance: Sensor to object (inches)
-0
-1
-2
-3
-4
-5
The emissivity setting is fixed at 0.95,
making the PyroCouple M Series suitable
for the majority of applications where the
target is made of a non-reflective material
such as paper, plastic, rubber, cloth, food
etc. or it can be used to measure metals
that are painted, anodised or oxidised.
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM SENSING HEAD
Distance: Sensor to object (inches)
4-20 mA
0-50 mV
T thermocouple
J thermocouple
K thermocouple
0-5V
The electronics module measures 98mm
x 64mm x 34mm. It is made of die-cast
aluminium, sealed to IP65, and will operate
in ambient temperatures up to +70°C. It
is powered from a 24 VDC (28 VDC max)
power source.
ENVIRONMENTAL
Ambient Temperature Range
Model-X
The miniature sensing head measures
just 18mm diameter x 45mm. It is made
of stainless steel, sealed to IP65, and will
operate in ambient temperatures up to
+70°C without additional cooling. This
makes the PyroCouple M Series ideal for
applications where there is only a small
amount of room available to mount the
sensor or the ambient temperature around
the sensing head is higher than normal.
Output
Environmental Rating
Output
Distance: Sensor to object (mm)
PCM301
Calex Electronics Limited
PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 Lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
Distance: Sensor to object (mm)
PCMCF
Accessories
•
•
•
•
Fixed mounting bracket
Adjustable mounting bracket
Air purge collar
Laser sighting tool
Options
• Other outputs available upon request
• Longer cable (3 m max.)
• Certificate of calibration
PyroEpsilon
Compact Non-Contact Temperature Sensor
with Controllable Emissivity Setting
• Temperature range: -20°C to 500°C
• Two-wire 4-20 mA output
proportional to target temperature
• 4-20mA input to control emissivity
setting
• Optional PyroTune manual
emissivity adjuster
• Field of view: 2:1, 15:1, 30:1 or
close focus
• Fast response with high stability
• Stainless steel housing, sealed to
IP65
• Quick and easy installation
PyroEpsilon sensor with optional
PyroTune emissivity adjuster
• Optional air/water cooled housing,
air purge collar, laser sighting tool
and mounting brackets
The PyroEpsilon 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
PyroEpsilon Sensor
PWR+
Power Supply
+ -
PWR-
4-20mA
outstanding response time of 240 ms.
Display/Controller
-
PyroEpsilon sensors transmit the target
+
temperature as a 4-20 mA output and offer
4-20mA = Target
Temperature
a simple solution for most non-contact
temperature measurement applications.
PyroTune or PLC
The sensor’s emissivity setting can be
Power Supply
- +
IP-
adjusted from 0.2 to 1.0 to cope with
different target materials and is controlled
by a 4-20 mA input. This gives the
IP+
opportunity to adjust the emissivity setting
4-20mA
+
-
SC 0V 24V
4-20mA = Emissivity
Setting
automatically from a programmable logic
controller (PLC). Alternatively the emissivity
setting can be adjusted manually using the
optional PyroTune module. If the 4-20 mA input
is left open or short-circuit the emissivity
setting defaults to 0.95.
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM
SENSING HEAD
Distance: Sensor to object (inches)
3.1
1.8
0.5
0
100
Distance: Sensor to object (inches)
0
19.7
39.4
1.1
1.8
0.5
D:S 15:1
111.9
200
Spot Dia.
(mm)
Spot Dia.
(mm)
D:S 2:1
11.9
61.9
39.4
11.9
45.2
0
Distance: Sensor to object (mm)
500
78.6
1000
0
3.9
7.9
0.5
0.20
0.49
11.9
5.0
12.5
0
100
200
D:S 30:1
Distance: Sensor to object (mm)
PE21
Distance: Sensor to object (inches)
Spot Dia.
(inches)
19.7
11.9
0
28.6
500
45.2
1000
Spot Dia.
(mm)
2.4
0.5
0
Spot Dia.
(inches)
8
4.4
Spot Dia.
(mm)
4
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
0
Distance: Sensor to object (mm)
PE151
PE301
Distance: Sensor to object (mm)
PECF
All PyroEpsilon sensors are fitted with
precision Germanium lenses for accurate
optics. Model PE21 has 2:1 optics making
it suitable for most applications where the
sensor can be mounted close to the target.
Model PE151 is designed for small or
distant targets and has an optical resolution
of 15:1. Model PE301 is designed for very
small or distant targets and has an optical
resolution of 30:1. Model PECF is designed
for targets as small as ø5 mm at a distance
of 100 mm from the sensor
Accessories
Pyroepsilon Specifications
Temperature Range vs Field-of-View table
Field of View
-20ºC to 100ºC
0ºC to 250ºC
0ºC to 500ºC
2:1
PE21LT
PE21MT
-
15:1
PE151LT
PE151MT
PE151HT
30:1
PE301LT
PE301MT
PE301HT
ø5mm @ 100mm
PECFLT
PECFMT
PECFHT
Output
Accuracy
Repeatability
Emissivity
Response Time, t90
Spectral Range
Supply Voltage
Min. Sensor Voltage
Max. Loop Impedance
Input Impedance
4-20mA
±1% of reading or ±1ºC whichever is greater
± 0.5% of reading or ± 0.5ºC whichever is greater
0.2 to 1.0 via 4-20mA input
240 ms (90% response)
8 to 14 μm
24 V DC (28 V DC max.)
6 V DC
900 Ω ( 4-20 mA output)
50 Ω
Construction
Dimensions
Thread Mounting
Cable Length
Weight with Cable
Stainless Steel
18 mm diameter x 103 mm long
M16 x 1 mm pitch
1m (longer lengths available to order)
95 g
Mechanical
ENVIRONMENTAL
Environmental Rating
Ambient Temperature Range
Relative Humidity
IP65
0ºC to 70ºC
95% max. non-condensing
PyroTUNE Specifications
Output
Supply Voltage
Display Format
Display Units
Adjustment
4-20mA
24 V DC (13 V to 28 V DC)
3.5 digit LCD
Emissivity (0.2 to 1.0) or current (4 - 20 mA)
Push-buttons (raise/lower/set)
Mechanical
Construction
Mounting
Dimensions
Weight
Polycarbonate with gasket, transparent lid (PC) and
quick release screws
Surface
65 mm tall x 50 mm wide x 35 mm deep
72 g
ENVIRONMENTAL
Environmental Rating
Ambient Temperature Range
Relative Humidity
IP65
0ºC to 70ºC
95% max. non-condensing
Calex Electronics Limited
PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 Lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
Fixed
mounting
bracket
The L-shaped fixed
mounting bracket
offers a rigid support for the sensor and allows fine adjustment in
a single plane.
Adjustable
mounting
bracket
The adjustable
mounting bracket
consists of a
fixed mounting
bracket plus another L-shaped bracket. When
assembled as shown the adjustable mounting
bracket offers a rigid support for the sensor and
allows fine adjustment in two planes.
Air purge
collar
The air purge collar
is used to keep dust,
fumes, moisture and
other contaminants
away from the lens. Air flows into the fitting on the
side and out of the aperture at the front.
Air/water
cooled
housing
The air/water
cooled housing
allows the sensor to
withstand ambient temperatures which exceed
the normal 70°C limit. Air or water (depending on
the degree of cooling required) flows into one of
the fittings on the side and out of the 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 with the sensor
and cannot be fitted by the user.
Laser
Sighting
Tool
The Laser Sighting
Tool screws onto
the front of the
sensor during installation and indicates precisely
where the sensor is aiming. Once the sensor
has been aimed at the centre of the target and
locked in position the Laser Sighting Tool can
be removed. The laser is activated by means of
a push button on the front of the tool which has
a latching mechanism.
Issue C - July 10
Specifications subject to change without notice
PyroUSB 2.2
PC Configurable Infrared Temperature Sensor
for Demanding Applications
• Short-wavelength measurement for lowemissivity targets such as steel rollers and
other metal surfaces, even at low temperatures
• Configurable temperature range, emissivity
setting etc. from a PC via CalexSoft software
and USB cable (supplied)
• Features max, min, average and instantaneous
readings; peak or valley hold; reflected energy
compensation
• OPC Server capabilities
• Temperature ranges from 45°C to 2000°C
• Emissivity: 0.1 to 1.0
• Stainless steel housing, sealed to IP65
• Field of view: 15:1, 25:1, 75:1 or Close Focus
• Selectable 0 to 20 mA or 4 to 20 mA output
• Optional air/water cooled housing, air purge
collar, laser sighting tool and mounting brackets
The PyroUSB 2.2 Series of infrared pyrometers
measures temperatures from 45°C to 2000°C
accurately and consistently, with an outstanding
response time.
sensor connection
The selectable 0 to 20 mA or 4 to 20 mA output
is compatible with almost any indicator, controller,
recorder, data logger etc. without the need for
special interfacing or signal conditioning.
Power Supply
Red + Blue
Green
-
Display/
Controller
+
Yellow
For models with temperature range 250°C to
1000°C, or 450°C to 2000°C, a choice of optics is
available:
Power Supply
Red + Blue
Green
+
Yellow
Display/
Controller
USB
PC
N/C
Models with temperature range 45°C to 300°C, or
100°C to 400°C have 15:1 optics.
USB
PC
Note: The sensor must be grounded at only one point, either the cable shield or the sensor housing.
PU251-2.2 models have 25:1 optics and are
suitable for most target sizes and distances.
PU751-2.2 models are specially designed for distant
targets and have an optical resolution of 75:1.
PUCF-2.2 models are designed for small targets
and measure a spot size of ø 7.5 mm at 500 mm
distance.
All PyroUSB 2.2 Series sensors are fully configurable
from a PC using the CalexSoft software and USB
cable supplied. This user-friendly software enables
the user to set the temperature range and emissivity
setting, compensate for reflected energy; apply
filtering; select max, min, average or instantaneous
readings; and configure peak or valley hold
processing. These features can also be monitored
and adjusted by an OPC Client. Other features
include data acquisition, alarms and a scrolling
graphical display.
The sensor will operate with either the 4 to 20 mA
cable connected, the USB cable connected, or
both. The USB cable has an IP65 connector at the
sensor end. An IP65 cap protects the sensor when
the USB cable is not connected.
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM
SENSING HEAD (90% energy)
59.1
118.1
8.5
3.9
0.6
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
0
0
100
215
1500
Distance: Sensor to object (mm)
3000
15
0
60
1500
Distance: Sensor to object (mm)
2.2
0.8
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
59.1
118.1
0.6
135
20
55
1500
Distance: Sensor to object (mm)
3000
Spot Dia.
(mm)
Spot Dia.
(mm)
0
The air purge collar
is used to keep dust,
fumes, moisture and
other contaminants
away from the lens.
3000
0
0.6
0.3
7.5
15
0
Air/water
cooled
housing
Distance: Sensor to object (inches)
19.7
39.4
1.2
D:S 75:1
15
Air purge
collar
PyroUSB 2.2-251
PyroUSB 2.2-151
0
5.3
2.4
0.6
D:S 25:1
Spot Dia.
(mm)
Spot Dia.
(mm)
0
Fixed and
adjustable
mounting
bracketS
Distance: Sensor to object (inches)
59.1
118.1
D:S 15:1
15
Accessories
500
Distance: Sensor to object (mm)
PyroUSB 2.2-CF
PyroUSB 2.2-751
30
1000
The air/water cooled
housing allows the
sensor to withstand
ambient temperatures which exceed the normal 70°C limit. Air or water
(depending on the degree of cooling required) flows
into one of the fittings on the side and out of the 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 with the sensor and cannot be fitted
by the user.
Laser
Sighting
Tool
General Specifications
Temperature Range
Field-of-View
Output
Configuration
Accuracy *
Repeatability *
Emissivity Setting
Response Time, t90
Spectral Range
Supply Voltage
Sensor Voltage
Max Loop Impedance
Maximum Span
Minimum Span
LT: 45°C* to 300°C (PU151LT2.2 only)
PT: 100°C to 400°C (PU151PT2.2 only)
MT: 250°C to 1000°C
HT: 450°C to 2000°C
15:1 (PU151LT or PT)
25:1 (PU251MT or HT)
75:1 (PU751MT or HT)
ø7.5mm @ 500mm (PUCFMT or HT)
Selectable 4 to 20 mA or 0 to 20 mA
(linear with temperature)
Via PC port conforming to USB 2.0
±1% of reading or ±2°C, whichever is greater
±0.5% of reading or ±0.5°C, whichever is greater
0.1 to 1.0
≥240 ms (90% response)
2.0 to 2.4 μm
24 V DC (26 V DC max)
11 V DC min
900 Ω @ 24 V DC
Full temperature range (up to 1550°C)
100°C
* Object temperature > Tmin (see graph of Minimum Measurable Temperature)
Mechanical
Construction
Dimensions
Thread mounting
Weight with Output Cable
Output Cable Length
USB Cable Length
Stainless Steel
25 mm diameter x 106.5 mm long
M20 x 1 mm pitch
175 g
1 m (longer cable available to order)
1m
ENVIRONMENTAL
Environmental Rating
Ambient Temperature
Relative Humidity
IP65
0°C to 70°C
95% max. non-condensing
The Laser Sighting
Tool screws onto the
front of the sensor
during installation and
indicates precisely where the sensor is aiming. Once
the sensor has been aimed at the centre of the target
and locked in position the Laser Sighting Tool can be
removed. The laser is activated by means of a push
button on the front of the tool which has a latching
mechanism.
Minimum Measurable
Temperature (PU151LT2.2 only)
Graph showing the minimum measurable object
temperature (Tmin), determined by surface emissivity (ε) and
sensor temperature (TS).
Model Numbers
PUxxx xx 2.2 xx
Cooling
(blank) = Uncooled sensor
WJ = Air/water cooled jacket
with air purge collar
Temperature range
LT = 45 to 300 °C (model PU151LT2.2 only)
PT = 100 to 400 °C (model PU151PT2.2 only)
MT = 250 to 1000 °C
HT = 450 to 2000 °C
Field of view
151 = 15:1 divergent optics (model PU151LT or PT)
251 = 25:1 divergent optics (model PU251MT or HT)
751 = 75:1 divergent optics (model PU751MT or HT)
CF = Close-focus optics (focal spot size 7.5 mm at
500 mm distance) (model PUCFMT or HT)
Calex Electronics Limited
PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 Lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
Issue H - Oct 11
Specifications subject to change without notice
PyroUSB PC Configurable
Non-Contact Temperature Sensor with
4 to 20 mA Output
shown actual size
The PyroUSB Series is a range of high performance, compact
sensors which measure the temperature of inaccessible or
moving objects and materials.
• Configurable temperature range,
emissivity setting etc. from a PC via
CalexSoft software and USB cable
(supplied)
• Features max; min; average and
instantaneous readings; peak or valley
hold; reflected energy compensation
• OPC Server capabilities
• Temperature range –40 to 1000°C
• Emissivity: 0.1 to 1.0
• Response time: 240 ms to 90%
• Stainless steel housing, sealed to IP65
• Field of view: 15:1, 30:1 or Close
Focus
• 4 to 20 mA output
• Quick and easy installation
• Optional air/water cooled housing,
air purge collar, laser sighting tool
and mounting brackets
GENERAl SPECIFICATIONS
Temperature Range
Field-of-View
-40°C to 1000°C
15:1 (PyroUSB-151)
30:1 (PyroUSB-301)
ø5mm @ 100mm (PyroUSB-CF)
Output
4 to 20 mA (linear with temperature)
Configuration
Via PC port conforming to USB 2.0
Accuracy
±1% of reading or ±1°C whichever is greater
Repeatability
±0.5% of reading or ±0.5°C whichever is greater
Emissivity
0.1 to 1.0
Response Time, t90
240 ms (90% response)
Spectral Range
8 to 14 µm
Supply Voltage
24 V DC (28Vdc max)
Sensor Voltage
6 V DC min
Maximum Loop Impedance
900 Ω
Maximum Span
1000°C
Minimum Span
100°C
MEChANICAl
Construction
Stainless Steel
Dimensions
25 mm diameter x 106.5 mm long
Thread mounting
M20 x 1 mm pitch
Weight with Output Cable
175 g
Output Cable Length
1m
USB Cable Length
1m
ENVIRONMENTAl
Environmental Rating
IP65
Ambient Temperature Range
0°C to 70°C
Relative Humidity
95% max. non-condensing
The PyroUSB Series measures
temperatures from -40°C to 1000°C
accurately and consistently, with an
outstanding response time of 240 ms.
The 4 to 20 mA output is compatible
with almost any indicator, controller,
recorder, data logger etc. without the
need for special interfacing or signal
conditioning.
PyroUSB-151 has 15:1 optics making it
suitable for most applications. PyroUSB301 is specially designed for distant
targets and has an optical resolution of
30:1. PyroUSB-CF is designed for
small targets and measures a spot size
of ø5mm at 100mm distance.
All PyroUSB Series sensors are fully
configurable from a PC using the
CalexSoft software and USB cable
supplied. This user friendly software
enables the user to set the range
and emissivity, compensate for
reflected energy; apply filtering; select
max, min, average or instantaneous
readings; and peak or valley hold
processing. These features can also be
monitored and adjusted by an OPC
Client. Other features include Data
Acquisition, Alarms and a Scrolling
Graphical Display.
The sensor will operate with either the 4
to 20 mA cable connected, the USB
cable connected, or both. The USB cable
has an IP65 connector at the sensor end.
An IP65 cap protects the sensor when
the USB cable is not connected.
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM SENSING hEAD
0
0.6
19.7
1.2
15
0
48
500
Distance: Sensor to object (mm)
PyroUSB-151
0
15
0.6
3.9
0.2
7.9
0.6
D:S 30:1
82
1000
Spot Dia.
(mm)
Spot Dia.
(mm)
D:S 15:1
Distance: Sensor to object (inches)
39.4
1.9
Spot Dia.
(inches)
1.9
Distance: Sensor to object (inches)
39.4
3.2
Spot Dia.
(mm)
0.6
19.7
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
0
15
0
32
500
Distance: Sensor to object (mm)
PyroUSB-301
48
1000
0
5
100
Distance: Sensor to object (mm)
PyroUSB-CF
15
200
All PyroUSB Series Sensors are supplied with a stainless steel mounting nut and are easy to install.
Standard sensors will operate in ambient temperatures up to 70°C. For more hostile environments or difficult mounting
conditions a wide range of accessories is available.
ACCESSORIES
FIXED MOUNTING BRACKET
The l-shaped fixed mounting bracket offers a rigid support for the sensor and
allows fine adjustment in a single plane.
ADJUSTABlE MOUNTING BRACKET
The adjustable mounting bracket consists of a fixed mounting bracket plus another
l-shaped bracket. When assembled as shown the adjustable mounting bracket
offers a rigid support for the sensor and allows fine adjustment in two planes.
AIR PURGE COllAR
The air purge collar is used to keep dust, fumes, moisture and other contaminants
away from the lens. Air flows into the fitting on the side and out of the aperture at
the front.
AIR/WATER COOlED hOUSING
The air/water cooled housing allows the sensor to withstand ambient temperatures
which exceed the normal 70°C limit. Air or water (depending on the degree of
cooling required) flows into one of the fittings on the side and out of the 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 with the sensor and cannot be fitted by the user.
lASER SIGhTING TOOl
The laser Sighting Tool screws onto the front of the sensor during installation and
indicates precisely where the sensor is aiming. Once the sensor has been aimed at
the centre of the target and locked in position the laser Sighting Tool can be
removed. The laser is activated by means of a push button on the front of the tool
which has a latching mechanism.
OPTIONS
longer output cable (3 m max.)
Certificate of calibration
Calex Electronics Limited
Issue B - Dec 09
Specifications subject to change without notice
PO Box 2, leighton Buzzard, Bedfordshire, England lU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
PyroCouple
Compact Non-Contact Temperature Sensor
with optional Dual Output
shown actual size
Two-wire units (option 0)
PWR+
Power Supply
+ -
PWR-
4-20mA
Display/Controller
+
4-20mA = Target
Temperature
• Temperature range: -20°C to 500°C
• Emissivity setting: fixed at 0.95
• Two-wire 4-20 mA output or four-wire
voltage/thermocouple output
• Four-wire unit also provides internal
sensor temperature
• Field of view: 2:1, 15:1, 30:1 or close focus
• Fast response with high stability
• Stainless steel housing, sealed to IP65
• Quick and easy installation
• Optional air/water cooled housing, air
purge collar, laser sighting tool and
mounting brackets
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.
Four-wire units (options 1 to 4)
PWR+
Power Supply
+ -
PWR-
4-20mA
Display/Controller
+
4-20mA = Sensor
Temperature
Display/Controller
OP-
-
OP+
+
mV/TC = Target
Temperature
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.
DIAMETER OF TARGET SPOT MEASURED VERSUS DISTANCE FROM
SENSING HEAD
Distance: Sensor to object (inches)
3.1
1.8
0.5
0
111.9
200
100
Distance: Sensor to object (inches)
0
19.7
39.4
1.1
1.8
0.5
D:S 15:1
Spot Dia.
(mm)
Spot Dia.
(mm)
D:S 2:1
11.9
61.9
39.4
11.9
45.2
0
Distance: Sensor to object (mm)
500
78.6
1000
0
3.9
7.9
0.5
0.20
0.49
11.9
5.0
12.5
0
100
200
D:S 30:1
11.9
28.6
0
Distance: Sensor to object (mm)
PC21
Distance: Sensor to object (inches)
Spot Dia.
(inches)
19.7
500
45.2
1000
Spot Dia.
(mm)
2.4
0.5
0
Spot Dia.
(inches)
8
4.4
Spot Dia.
(mm)
4
Spot Dia.
(inches)
Spot Dia.
(inches)
Distance: Sensor to object (inches)
0
Distance: Sensor to object (mm)
PC151
PC301
Distance: Sensor to object (mm)
PCCF
All PyroCouple sensors are fitted with
precision Germanium lenses for accurate
optics. Model PC21 has 2:1 optics making
it suitable for most applications where the
sensor can be mounted close to the target.
Model PC151 is designed for small or
distant targets and has an optical resolution
of 15:1. Model PC301 is designed for very
small or distant targets and has an optical
resolution of 30:1. Model PCCF is designed
for targets as small as ø5mm at a distance
of 100mm from the sensor.
Accessories
Fixed
mounting
bracket
General Specifications
Temperature Range vs Field-of-View table
Field of View
-20ºC to 100ºC
0ºC to 250ºC
0ºC to 500ºC
2:1
PC21LT-X
PC21MT-X
-
15:1
PC151LT-X
PC151MT-X
PC151HT-X
30:1
PC301LT-X
PC301MT-X
PC301HT-X
ø5mm @ 100mm
PCCFLT-X
PCCFMT-X
PCCFHT-X
Output table
Model-X
Target Temperature Output
Sensor Temperature Output
-0
4-20 mA
Not available
-1
0-50 mV
4-20 mA
-2
Type T thermocouple
4-20 mA
-3
Type J thermocouple
4-20 mA
-4
Type K thermocouple
4-20 mA
e.g. Model PC151HT-4 has a 15:1 field of view and provides a type K thermocouple output representing
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
±1% of reading or ±1ºC whichever is greater
Repeatability
± 0.5% of reading or ± 0.5ºC whichever is greater
Emissivity
Fixed at 0.95
Response Time, t90
240 ms (90% response)
Spectral Range
8 to 14 μm
Supply Voltage
24 V DC (28 V DC max.)
Min. Sensor Voltage
6 V DC
Max. Loop Impedance
900 Ω ( 4-20 mA output)
Output Impedance
56 Ω (voltage/thermocouple output)
Mechanical
Construction
Stainless Steel
Dimensions
18 mm diameter x 103 mm long
Thread MountingM16 x 1 mm pitch
Cable Length
1m (longer lengths available to order)
Weight with Cable
95 g
ENVIRONMENTAL
Environmental Rating
IP65
Ambient Temperature Range
0ºC to 70ºC
Relative Humidity
95% max. non-condensing
Calex Electronics Limited
PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ
Tel: +44 (0)1525 373178/853800 Fax: +44 (0)1525 851319 Lo-call Tel: 0845 3108053
E-mail: info@calex.co.uk Online: http://www.calex.co.uk
The L-shaped fixed
mounting bracket
offers a rigid support for the sensor and allows fine adjustment in
a single plane.
Adjustable
mounting
bracket
The adjustable
mounting bracket
consists of a
fixed mounting
bracket plus another L-shaped bracket. When
assembled as shown the adjustable mounting
bracket offers a rigid support for the sensor and
allows fine adjustment in two planes.
Air purge
collar
The air purge collar
is used to keep dust,
fumes, moisture and
other contaminants
away from the lens. Air flows into the fitting on the
side and out of the aperture at the front.
Air/water
cooled
housing
The air/water
cooled housing
allows the sensor to
withstand ambient temperatures which exceed
the normal 70°C limit. Air or water (depending on
the degree of cooling required) flows into one of
the fittings on the side and out of the 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 with the sensor
and cannot be fitted by the user.
Laser
Sighting
Tool
The Laser Sighting
Tool screws onto
the front of the
sensor during installation and indicates precisely
where the sensor is aiming. Once the sensor
has been aimed at the centre of the target and
locked in position the Laser Sighting Tool can
be removed. The laser is activated by means of
a push button on the front of the tool which has
a latching mechanism.
Issue C - July 10
Specifications subject to change without notice
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