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OVERVIEW
Invest in accurate, reliable non-contact temperature sensing today
The PyroMini Series is a range of miniature non-contact infrared temperature sensors with separate electronics modules.
All models have an adjustable emissivity setting and are capable of measuring a wide variety of target materials, including food, paper, textiles, plastics, leather, tobacco, pharmaceuticals, chemicals, rubber, coal and asphalt.
General-purpose PyroMini models measure non-reflective non-metals, or painted or coated metals, at temperatures from -20°C to 1000°C.
PyroMini 2.2 models have a short measurement wavelength. They are ideal for measuring reflective surfaces such as uncoated iron and steel, as well as many other high-temperature applications. They are capable of measuring temperatures from 100°C to 2000°C.
The optional touch screen interface provides temperature indication, alarms, sensor configuration and data logging to MicroSD Card. The optional high-temperature sensing head on general-purpose models may be used in ambient temperatures of up to 180°C without cooling. The low-noise cable on high ambient temperature models is resistant to interference from movement, so it is ideal for mounting on moving objects such as robot arms.
A choice of optics is available to measure small or large targets at short or long distances, and there is a choice of 4-20 mA, RS485 Modbus and alarm relay outputs.
Features- Two-part sensor with miniature sensing head and configurable electronics module
- Touch screen (optional) for temperature display and configuration
- Screen turns bright red in alarm condition for maximum visibility
- Adjustable emissivity setting on all models
- Data logging to MicroSD Card (optional) on touch screen models
- 4 to 20 mA or RS485 Modbus outputs
- Alarm relay outputs rated 24 V DC (optional) – no need for separate trip amplifier
- Maximum, minimum, average and instantaneous readings, peak or valley hold, reflected energy compensation
Touch Screen (-CRT and -BRT Models)
The optional backlit touch screen interface mounted in the lid of the electronics module provides a large, bright display of the measured temperature, as well as controls allowing full configuration of the sensor. The graph view shows the history of the measured temperature. In alarm conditions, the display changes colour to provide an immediate and obvious alarm indication. Alarm modes and levels can be configured via the touch screen.
Data Logging (-CRT and -BRT Models)
The PyroMini can be used as a standalone data logger.
PyroMini -CRT and -BRT models include a MicroSD card slot for data logging, which can be configured via the touch screen interface. The user can select the sample rate and the number of samples to be taken and schedule the data logging to start at a certain time.
With a 2 GB card, the user can store 28.4 million readings, which provides almost 1 year’s worth of data at the fastest possible sample rate of 1 per second.
Data is stored on the MicroSD card in .csv format and can be viewed and edited easily using spreadsheet software. Alarm events can also be logged to the MicroSD Card.
A MicroSD card with SD card adapter is available as an optional accessory.
The MicroSD card slot and battery holder are located on the touch screen circuit board in the lid of the PyroMini. Readings are time and date stamped using the sensor’s internal clock. The clock is reset when the power is disconnected, or it will continue if the optional battery is fitted.
Please refer to product images or datasheet for field of view images
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APPLICATIONS
The unique features of the PyroMini make it ideal for applications in a wide range of industries. For example, some typical uses include:
Food
Peak or valley hold processing makes the PyroMini ideal for measuring food temperature in vats, where stirring machinery interrupts the sensor’s view of the food surface, and for measuring the temperature of food products on conveyors to ignore readings of the conveyor temperature. Data logging to MicroSD Card means the PyroMini may be used to satisfy HACCP requirements.
Hot stainless steel surfaces above 100°C can be measured quickly and accurately with the PyroMini 2.2. Applications include burner control in conveyor ovens and dryers.
Paper
Models with high-temperature sensing head (up to 180°C ambient) may be used in hot environments in corrugated board manufacturing and paper drying.
Dryer cylinder surface temperatures exceeding 100°C (such as in linerboard manufacturing) may be measured directly with the PyroMini 2.2. See also the PyroUSB 2.2 for temperatures below 100°C (in the manufacture of finer paper types).
Plastics
In thermoforming, the 180°C sensing head is ideal for measuring the plastic sheet preheat temperature where the ambient temperature is high, without the need for cooling
Paint and Adhesive Curing
The high-temperature sensing head may be placed inside curing ovens up to 180°C without cooling. It is also ideal for use with infrared curing heaters.
Steel industry
Short-wavelength 2.2 μm sensors are better-suited to measuring steel surface temperature than general-purpose 8 to 14 μm models.
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SPECIFICATIONS
PyroMini General Purpose
PyroMini 2.2 High Temperature
Temperature Range Choice of ranges from -20°C to 2000°C (see Model Numbers) Output 4 to 20 mA or RS485 Modbus (up to 247 sensors may be installed on each Modbus network) Alarm Relays (-CRT and -BRT models) 2 x Single Pole Changeover alarm relays rated 24 V DC, 1 A, isolated 500 V DC Accuracy ± 1°C or 1% of reading,
whichever is greater± 2°C or 1% of reading,
whichever is greaterRepeatability ± 0.5°C or 0.5%, whichever is greater Optics Choice of optics (see Model Numbers on page 3) Emissivity Setting Range 0.20 to 1.00 Emmissivity Method -CRT and -BRT models: via touch screen
-BB and -BRT models: via RS485
-CB models: via two rotary switches in
electronics boxResponse Time, t90 240 ms (90% response) Spectral Range 8 to 14 μm 2.0 to 2.6 μm Supply Voltage 24 V DC ± 5% Maximum Current Draw 100 mA Maximum Loop Impedance CB and -CRT models: 900 Ω (4 to 20 mA output) Max Temp Span (-CRT models) Full temperature range Min Temp Span (-CRT models) 100°C ELECTROMAGNETIC COMPATIBILITY STANDARDS
Conforms to EMC Directive EN61326-1:2006 (Electrical equipment for measurement, control and laboratory use – Industrial) as well as industrial standards for electromagnetic immunity and emissions.
Mechanical
Sensing Head Electronics Module Construction Stainless Steel 316 Cast aluminium Dimensions Ø 18 x 45 mm (see
diagram)98(w) x 64(h) x 36(d) mm Mounting M16 x 1 mm thread Two M4 screw holes for wall
mounting (see diagram)Cable Length
(sensing head to
electronics module)1 m (standard), up to 30 m (optional) Weight with1 m Cable 390 g (approx) Cable Connections Removable screw terminal blocks (see Connections)
Conductor size: 28 AWG to 18 AWGOutput Cable Gland Suitable for cable diameters 3.0 to 6.5 mm Environmental
Sensing Head Electronics
Module
(without
screen)Electronics
Module
(with touch
screen)Environmental Rating IP65 (NEMA 4) IP65 (NEMA 4) – Ambient
Temperature RangeSee below * 0°C to 60°C 0°C to 60°C Relative Humidity Maximum
95% noncondensingMaximum
95% noncondensingMaximum
95% noncondensingRoHS Compliant Yes Yes Yes *Ambient Temperature Range (Sensing Head)
PyroMini: Ranges from 0°C to 180°C, depending on model (see Model Numbers)
PyroMini 2.2: 0°C to 70°CTouch Screen Specifications (-CRT & -BRT Models)
Touch Screen Display Format 2.83” (72 mm) resistive touch TFT, 320 x 240 pixels,
backlitConfigurable Parameters Temperature range, temperature units, emissivity
setting, reflected energy compensation, alarms, signal
processing, Modbus address (-BRT models), date
and time, data loggingTemperature Units °C or °F configurable Temperature Resolution 0.1° Alarm Configuration Two alarms with adjustable level, individually
configurable as HI or LO. Alarm 2 can be set to target
temperature or sensing head internal temperatureSignal Processing Average, peak hold, valley hold, minimum, maximum Languages English, Chinese (simplified), Japanese Data Logging Specifications (-CRT & -BRT Models)
Data Logging Interval 1 to 86,400 seconds (1 day) MicroSD Card Max. capacity: 32 GB (available
separately)Internal Clock battery 1 x BR 1225 3V (not included) Variables Logged Target temperature, sensing
head temperature, electronics
module temperature, max, min,
average, emissivity setting,
reflected energy compensation
temperature, alarm eventsFile Format .csv Configurable Parameters Sample period, number of
samples, scheduled start date
and time
Calex PyroMini – Infrared Temperature Sensor
$0.00 NZD ex GST
The Calex PyroMini is a Miniature Infrared Temperature Sensor with Separate Electronics Module & Optional Touch Screen Interface, 4 to 20 mA or RS485 output and alarm relay outputs.
