Related Manuals for Calex ExTempMini Series
Summary of Contents for Calex ExTempMini Series
- Page 1 ExTempMini Series Intrinsically Safe Miniature Infrared Temperature Sensor with Separate Electronics Module Operator’ s Guide...
- Page 2 Certification Management Ltd. They comply with the European ATEX Directive 2014/34/EU and are covered by certificates for IECEx (international) and UKCA (United Kingdom). The ExTempMini Series is also approved for use in Japan (JNIOSH- TR-46-1:2020 (General requirements); JNIOSH-TR-46-6:2015 (Intrinsic Safety “i”)).
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Page 3: Intrinsic Safety Certification
INTRINSIC SAFETY CERTIFICATION All models of the ExTempMini have been issued an ATEX (CML 22ATEX2007X) Certificate for use in gas explosive atmospheres in above ground installations. The sensing head can be used in all gas Zones including Zone 0. The main enclosure can be installed in Zone 1. -
Page 4: Model Numbers
25 m (maximum length) The sensing head and electronics module are calibrated together as a pair. The sensing head cable length may not be modified by the user. Contact Calex for more information. Measurement Temperature Range -20°C to 100°C MT = 0°C to 250°C... -
Page 5: Specifications
M4 socket head screws supplied with two mounting nuts Cable Length (Sensing Choice of 5 m, 10 m or 25 m factory- Head) fitted. Contact Calex for information about extending cable. Weight with 5 m Cable Cable Connections Removable screw terminal blocks (see Connections). -
Page 6: Electromagnetic Compatibility
Hazardous Area Main Enclosure Sensing Head Classification Ambient Temperature -20°C ≤ Ta ≤ 70°C -20°C ≤ Ta ≤ -20°C ≤ Ta ≤ Rating 115°C 180°C ATEX Classification Ex II 2 G Ex II 1 G Ex II 1 G IECEx Classification (Gas) Ex ia [ia Ga] IIC T4 Ex ia IIC T4 Ga Ex ia IIC T3 Ga... -
Page 7: Installation And Maintenance
• Certificate of calibration • Extended sensing head cable (25 m max. factory-fitted; contact Calex for information about extending the cable) • Output cable (25 m max. factory-fitted cable; alternatively customer may supply and fit output cable. Contact Calex for information) -
Page 8: Mechanical Installation
Wiring Check the distance between the sensor and the indicating/controlling device. If necessary, the sensor can be ordered with a longer cable attached. Contact Calex for information about extending the cable. Power Supply A suitable intrinsically safe isolator must be used. See Specifications for the supply voltage, current and safety requirements. -
Page 9: Mounting Brackets
MOUNTING BRACKETS AIR PURGE COLLAR The lens must be kept clean and dry for an accurate reading. The optional air purge collar is used to keep dust, fumes, moisture, and other contaminants away from the lens. It must be screwed on fully. There are two models of air purge collar to suit the different optics (see below). - Page 10 ELECTRICAL INSTALLATION Hazardous Area Hazardous Area Safe Area Zone 0 Zone 1 (Non-Hazardous) Sensing head Main enclosure Certified Intrinsically Ta = -20°C to +180°C Ta = -20°C to +70°C Safe isolator (e.g. Optional connections shown are for MTL5541) PC with configuration software (USB...
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Page 11: Output Cable Installation
OUTPUT CABLE INSTALLATION The recommended output cable type is LAPP ÖLFLEX EB CY 2x0.75mm². An alternative cable may be used. See the ExTempMini Guide to Certification and Installation for full details. Cable gland Cable shield braid Spring contacts Output cable e.g. Lapp ÖLFLEX EB CY 2x0.75mm²... -
Page 12: Configurable Parameters
Go to the Settings screen, then Emissivity and Compensation. • Emissivity Setting Enter the emissivity of the target. Target emissivity can be determined experimentally, or estimated using an emissivity table. For more information, contact Calex. Default setting: 0.95 • Reflected Energy Compensation On/Off If enabled, compensates for errors caused by reflected energy from hotter or colder objects. -
Page 13: Maintenance
IMPORTANT Be aware of the following when using the sensor: • If the sensor is exposed to significant changes in ambient temperature (hot to cold, or cold to hot), allow 20 minutes for the temperature to stabilise before taking or recording measurements. -
Page 14: Electrical Connection
LOOP CONFIGURATION TOOL (LCT) The Loop Configuration Tool model LCT is a configuration adapter for ExTemp infrared temperature sensors. It is designed to be connected to the 4 to 20 mA current loop on the safe side of an Intrinsically Safe isolator, and to a Windows PC via USB. -
Page 15: Using The Software
4/20 mA 220 Ω SOFTWARE The latest version of the software is available for download from the Calex website at the following URL: www.calex.co.uk/software Install the software before connecting the LCT to a Windows PC. This will ensure the driver is properly installed. -
Page 16: Configuration Software
Settings Apply (save and exit) Output Graph Range Data Logging Clear graph Output Emissivity & Processing Compensation Calex Electronics Limited Issue C - Feb 2022 PO Box 2, Leighton Buzzard, Bedfordshire, England LU7 4AZ Tel: +44 (0)1525 373178 mail@calex.co.uk www.calex.co.uk...
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