User Guide - SEM210 - Global Measurement & Controls
Contents
1. 3 1 4 Vo 30 V SENSOR lo 100 mA 5 Po 750 mW 2 1 EARTH SEM210X WORKING PARAMETERS Ui 30 V li 100 mA Pi 750 mW Ci 10 nF Li 0 pH Page 5 Figure 2 3 0 INSTALLATION 3 1 MECHANICAL The transmitter is mounted using two 5 5 mm diameter holes on standard 33 mm fixing centres and will fit a DIN standard termination head The transmitter should be installed with adequate protection from moisture and corrosive atmospheres Care must be taken when locating the transmitter to ensure the ambient temperature remains within the specified operating range Figure 1 shows the mechanical layout and a typical application of the transmitter mounted inside a termination head enclosure with sensor wires entering through the centre of the transmitter body Figure 1 24 00 mm 33 00 mm Centres 044 00 mm Centre hole 06 3 mm ENCLOSURE ecu oe Oe 4 to 20 mA LOOP Page 6 3 2 ELECTRICAL ALSO AVAILABLE Connections to the transmitter are made to the screw terminals provided on the top face No special wires are required for the output connections but screened twisted pair cable are the most suitable for long runs It is recommended that screened cable is used for the three input signal wires for cable runs greater than one metre All three input wires must have the same core diameter to maintain equal lead resistance in each wire A 4 5mm hole is provided through t2. 0891 Explosive Protection Marking x TYPE ia INTRINSIC SAFETY ll 1 Equipment group and category G Type of explosive atmosphere Gas EEx ia IIC T4 16 Intrinsic safety information TRLO3ATEX21032 X Certificate reference 2 7 SEM210X VERSION FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES 2 7 3 SPECIAL CONDITIONS FOR SAFE USE 2 7 1 ATEX CERTIFICATE The TX210 has been issued with a EC type examination certificate confirming compliance with the European ATEX directive 94 9 EC for INTRINSIC SAFETY II 1 G EEx ia IIC T4 T6 The equipment bears the Community Mark and subject to local codes of practice may be installed in any of the European Economic Area EEA member countries The SEM210X housing is coloured light blue to identify the equipment as suitable for Hazardous area use The equipment must be installed and maintained in accordance with local requirements for electrical equipment for use in potentially explosive atmospheres e g EN60079 14 amp EN60079 17 This instruction sheet describes installation which conforms with BS EN60079 14 amp BS EN60079 17 Electrical Installation in Hazardous Areas When designing systems outside the UK the local Code of Practice should be consulted Page 3 As indicated by the Certificate Reference X suffix special conditions apply for safe use for both intrinsic safety and energy limitation applications They are as follows ZONES GAS GROUPS AND T RATING When connected to a approv
3. TX210 SERIES Programmable In head Universal Temperature Transmitter lt r al UY a vee wt lt bi 7 ee Global Measurement and Control Ltd Tel 44 0 115 946 7441 Fax 44 0 115 946 7442 Email sales globalltd co uk Web www globalltd co uk SECTION Ww N O O O INDEX CONTENTS DESCRIPTION SPECIFICATION INSTALLATION PAGE NO 1 1 5 6 7 1 0 DESCRIPTION The transmitter is a second generation Smart in head temperature transmitter that accepts any commonly used temperature sensor slidewire transducer or millivolt signal and converts the output to the industry standard 4 to 20 mA transmission signal The software package RCPW can be used to program the unit 2 0 SPECIFICATION 20 C 2 1 RTD INPUT Pt100 Sensor Range Minimum Span Linearisation Basic Measurement Accuracy Thermal Drift Zero Span Excitation Current Maximum Lead Resistance Lead Resistance Effect 2 2 THERMOCOUPLE INPUT SENSOR RANGES Thermocouple Type TC Type K TC Type J TC Type T TC Type R TC Type S TC Type E TC Type L TC Type N TC Type X 3 Linearisation Basic Measurement Accuracy Thermal Drift Zero Span Cold Junction Error Cold Junction Tracking Cold Junction Range 200 to 850 C 18 to 390 Q 25 C BS EN60751 IEC 751 BS 1904 DIN 43760 JISC 1604 CUSTOM X 2 0 01 FRI 0 05 Rdg FRI Full Range Input 0 008 C C 0 01 C 300 to 550
4. ed system the SEM210X may be installed in Zone 0 Explosive gas air mixture continuously present Zone 1 Explosive gas air mixture likely to occur in normal use Zone 2 Explosive gas air mixture not likely to occur and if it does it will only occur for a short time Be used in gas groups Group A Propane Group B Ethylene Group C Hydrogen Page 4 Allowable temperature classification ambient temperature INTRINSIC SAFETY Type ia CLASS AMBIENT TEMPERATURE RANGE C T1 450 C 25 to 85 T2 300 C 25 to 85 T3 200 C 25 to 85 T4 135 C 25 to 85 T5 100 C 25 to 50 T6 85 C 25 to 40 2 7 4 ENVIRONMENTAL PROTECTION This equipment must be housed in an enclosure which provides a degree of protection of at least IP54 The enclosure must be suitable for the atmosphere and environment in which it is installed e g If of a plastic material must be resistant to chemical corrosion UV light temperature humidity etc 2 7 5 MAINTENANCE This intrinsically safe equipment contains no user serviceable adjustable or replaceable parts No attempt should be made to repair a faulty TX210X transmitter all units must be returned to the manufacture for repair or replacement Attempt service or replacement of parts may invalidate the explosive protection features of the equipment 2 8 CONNECTION DIAGRAM They equipment must be electrically connected as shown below HAZARDOUS AREA SAFE AREA SEM210X BARRIER DC SUPPLY
5. he centre of the transmitter to allow sensor wires to be threaded through the transmitter body direct to the input screw terminals The screw terminals have been designed to allow all connection wires to enter from an inner or an outer direction Smart In Head Temperature Transmitters DIN Rail Mounted Temperature Transmitters Panel amp Field Temperature Indicators Temperature Probes Trip Amplifiers Signal Conditioners And many other products Figure 3 shows the method of connection to provide a 4 to 20 mA current loop output The Pt100 sensor shown would normally take the form of a probe assembly with a three wire connection The output loop has a voltage power supply used to provide loop excitation The load symbol represents other equipment in the loop normally indicators controllers or loggers Care must be taken when designing the 4 to 20 For further information on all products mA circuit to ensure that the total voltage requirements of all the equipment in the loop added together does not exceed the power supply voltage If a number of instruments are connected in the loop ensure that only one instrument is tied to ground Grounding the loop at two points will cause a short circuit of part of the loop leading to measurement errors To guarantee CE compliance sensor leads must be less than 3 m long and the transmitter housing should prevent access to the transmitter during normal operation Global Measurement amp Control L
6. pA 50 Q leg 0 002 C Q Measuring Range 4 C Minimum Span C 200 to 1370 50 200 to 1200 50 210 to 400 25 10 to 1760 10 10 to 1760 100 200 to 1000 50 100 to 600 25 180 to 1300 50 User defined BS 4937 IEC 584 EN60584 0 04 FRI 0 04 RDG or 0 5 C whichever is greater 0 1 uV C 0 01 C 0 5 C 0 05 C C 40 to 85 C Page 1 2 3 MILLIVOLT INPUT 2 Input Range Characterisation Minimum Span Basic Measurement Accuracy 2 Input Impedance Thermal Drift Zero Span 2 4 SLIDEWIRE INPUT Input Resistance Range Characterisation Minimum Span Basic Measurement Accuracy Temperature Drift 2 5 OUTPUT Output Range Maximum Output Accuracy Voltage Effect Thermal Drift Supply Voltage Maximum Output Load NOTES Voltage source 10 to 75 mV Linear Custom X 4th order polynomial 5 mV 10 pV 0 07 Rdg 10 MQ 0 1 pVv C 0 01 C 3 wire potentiometer 10 to 390 Q end to end Larger values can be accommodated by external resistor Linear Custom X 4th order polynomial 5 0 1 FRI 0 01 C 4 to 20 mA gt 3 8 to lt 20 2 mA 23 mA 5 pA 0 2 A V 1 pA C 10 to 35 V Vsupply 10 20 KQ e g 700 Q 24 V 1 Any span may be selected full accuracy is only guaranteed for spans greater than the minimum recommended 2 Basic measurement accuracy includes the effects of calibration linearisation and
7. repeatability 3 Customer linearisation requirements are available pre programmed at the factory contact your supplier for details 4 Consult thermocouple reference standards for thermocouple material limitation Ol If the unit is to be configured for either millivolts or slidewire input the following procedure should be followed Configure unit for RTD with BS1904 linearisation Not EN60751 and up load to unit The unit can now be configured for millivolts or slidewire input Page 2 2 6 GENERAL Input Output Isolation Update Time Time Constant Filter Off Filter Factor Programmable Warm up Time ENVIRONMENTAL Ambient Operating Range Ambient Storage Temperature Ambient Humidity Range APPROVALS EMC MECHANICAL Enclosure Material Weight Dimensions COMMUNICATIONS PC Interface Minimum Output Load Maximum Cable Length Configurable Parameters offset Comms Protocol Data Rate 500 VAC rms galvanically isolated 250 ms maximum lt 1s Time to reach 63 final value Off 2 s 10 s or adaptive 120 s to full accuracy 40 to 85 C 50 to 100 C 10 to 90 RH non condensing BS EN61326 DIN standard terminal block size ABS 35 g 43 x 21 mm RS232 via configurator 250 Q for In loop programming 1000 m Sensor type Burnout C F Output Hi Lo Filter Tag User ANSI X3 28 1976 1200 baud COMMON INFORMATION Manufacturer Global Ltd Type Number TX210 CE Marking CE
8. td Figure 3 Tel 44 0 115 946 7441 Fax 44 0 115 946 7442 3 4 TC a 4 MILLIVOLT Email sales globalltd co uk Web www globalltd co uk Rx Pt100 i 3 4 5 3 4 5 SLIDEWIRE e o 10 to 35 VDC POWER 7 ee 1 SUPPLY Fit Rx for all potentiometers with end to end resistance gt 390 Q Such that total end to end resistance is gt 200 Q lt 390 Q Page 7 Page 8
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