HART DIN RAIL TEMPERATURE TRANSMITTER SEM315 ACCEPTS PT100, T/C & SLIDEWIRE SENSORS HART PROTOCOL UNIVERSAL INPUT SENSOR BURNOUT DETECT INTRODUCTION The SEM315 has the HART communications protocol which allows the user to quickly and easily down-load information or interrogate the device enabling the following: Simple re-ranging of sensor type and range. Easy on site re-calibration. TM TM Operation with proprietary software packages such as AMS Plant Web and Cornerstone . Remote configuration on the (4 to 20) mA loop with a hand held communicator or with a PC & HART modem. Online Digital communication concurrent with a (4 to 20) mA analogue signal. The standard HART universal and common usage commands are implemented, with other device specific commands that enable access to the enhanced performance parameters of the SEM315. ENHANCED FEATURES Some of the enhanced SEM315 features are as follows: Sensor Referencing The SEM315 sensor referencing via the Windows based M- Config software allows for close matching to a known reference sensor eliminating possible sensor errors. User calibration In addition to sensor referencing, user offset and current output trimming is possible via the HART commands. Custom Linearisation The X * facility allows the SEM315 to be programmed with a custom linearisation to suit non standard sensors or sensors with unusual or unique characteristics. Consult the sales office for details. Sensor Burn out detection If any sensor wire is broken or becomes disconnected the SEM315 output will automatically go to its user defined level (upscale or downscale). This happens irrespectively of which wire is broken. Output current preset For ease of system calibration and commissioning the output can be set to a pre-defined level anywhere in the (4 to 20) mA range. Hart Registered trademark of the HART Communication Foundation. HART DIN RAIL TEMPERATURE TRANSMITTER SPECIFICATIONS 20 C Input Types Pt100, Thermocouple, mV or INPUT SENSORS & RANGES Slidewire. (Ni100, via Custom X * facility) Pt100 (RTD) 2, 3 or 4 Wire Sensor Range (-200 to -850) C 18 to 390 Time Constant (Filter off) 0.5 s (to 90 % of final value) Minimum Span 25 C Filter Factor Off/selectable Linearisation BS EN 60751/BS 1904/ DIN between 1 and 32 seconds/ 43760/JIS1604/ CUSTOM X * or Adaptive Max. Lead Resistance 50 per leg (balanced for 3 wire) Warm-up Time 120 s to full accuracy Basic Measurement Accuracy* 0.01 % FRI* 0.07 % rdg Input/Output Breakdown Isolation 500 VAC RTD Excitation Current (300 to 500) A Thermal Drift Zero 0.008 C/C Span 0.01 %/C ENVIRONMENTAL Operating Range (-40 to 85) C THERMOCOUPLE Storage Temperature (-50 to 85) C Type Range C Minimum span C Humidity Range (0 to 95) % non condensing Type K -200 to 1370 50 Type J -200 to 1200 50 APPROVALS Type T -210 to 400 25 EMC BS EN61326 Type R -10 to 1760 100 Type S -10 to 1760 100 OUTPUT Type E -200 to 1000 50 Type L -100 to 600 25 Type N -180 to 1300 50 Others Custom* 40 V OPERATION NOT RECOMMENDED Linearisation BS EN 60584-01/ BS 4937/ IEC 584-1 30 V SUPPLY 24 V VOLTAGE Basic Measurement Accuracy* 0.04 %FRI* 0.04 % rdg or 0.5 C (whichever is greater) 15 V NO HART OPERATION 10 V 500 Cold Junction 0.5 C tracking 0.05 C /C 0 250 660 1400 MAXIMUM LOAD ( ) range (-40 to 85) C Thermal Drift Span 0.01 %/C MILLIVOLTS Max Output Load (Vsupply -10)/21.5 K, 250 Input Voltage source minimum loop load. Supply Range (-10 to 75) mV voltages over 30 V a minimum Characterisation Linear, Custom X * loop load of 500 is necessary. Minimum Span 5 mV Basic Measurement Accuracy* Burnout Levels Low 3.75 mA, High 21.5 mA 10 V 0.07 % rdg Input Out of Range Low 3.8 mA, High 20.5 mA Output Range (4 to 20) mA, Min. 3.75 mA, Input Impedance 10 M Maximum 21.5 mA Thermal Drift Zero 0.1 V/C Accuracy 5 A Span 0.01 %/C Thermal Drift 1 A/ C Supply Voltage (10 to 40) VDC SLIDEWIRE Supply Voltage Effect 0.2 A/V Input 3 wire potentiometer Resistance Range (10 to 390) end to end Hart TrimDac function available. (Larger values can be accommodated with an ENCLOSURE external resistor) Material ABS Range (0 to 100) % Flammability SEI UL94-V0 Characterisation Linear, Custom X * Minimum Span*5 5 % of FRI* Thermal Drift Zero 0.005 % of Span/C Span 0.01 %/C Basic Measurement Accuracy* 0.1 % of FRI* *Notes: 1. Customer linearisation is available pre-programmed at the factory, contact sales office for details. 2. Basic Measurement Accuracy includes the effects of calibration, linearisation and repeatability. 3. FRI = Full Range Input