27HU

27HU MSYSTEM | Alldatasheet

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MODEL: 27HU 27HU SPECIFICATIONS ES-7651 Rev.17 Page 1/5 http://www.m-system.co.jp/ Head-mounted Two-wire Signal Conditioners 27-UNIT 2-WIRE UNIVERSAL TEMPERATURE TRANSMITTER (HART communication) Functions & Features

• Universal input: DC mV, T/C, RTD and resistance
• High accuracy
• HART communication
• Intrinsically safe approval
• Suitable for Functional Safety applications up to SIL2
• Programming via hand-held communicator or via PC
• A wide variety of T/C and RTD types
• User’s temperature table can be used
• Self diagnostics
• Ultra-low temp. drift option (20 ppm/°C typ.)
• CE marking (conforms to ATEX and EMC) 44 (1.73) DIA. 20.7 (.81) mm (inch) MODEL: 27HU–[1][2]

ORDERING INFORMATION

• Code number: 27HU-[1][2] Specify a code from below for each of [1] and [2]. (e.g. 27HU-2/L) Use Ordering Information Sheet (No. ESU-7651). Factory standard setting will be used if not otherwise specified. Specify the country in which the product is to be used with the Safety Approval code 2. [1] SAFETY APPROVAL 0: None 1: FM intrinsically safe 2: ATEX intrinsic safety [2] OPTIONS Temperature Drift Blank: Standard (temp. coefficient 0.015%/°C) /L: Ultra-low temperature drift

RELATED PRODUCTS

• USB interface Bell202 modem (model: COP-HU) Usable in ‘non-hazardous’ area only.
• Hand-held communicator
• PC configurator software (model: 27HUCFG) Downloadable at M-System’s web site. GENERAL SPECIFICATIONS Construction: Sensor head-mounting Connection: M3 screw terminals (torque 0.5 N·m) Screw terminal: Nickel-plated brass Housing material: Flame-resistant resin (black) Isolation: Input to output User-configurable items:
• Input sensor type and numbers
• Number of wires (RTD & resistance)
• Input range (inverted range selectable)
• Burnout
• Output limits (Upper / Lower)
• Damping time (factory set to 0)
• Cold junction compensation (T/C; internal or external sensor selectable)
• Linearization
• Sensor calibration
• Output calibration
• HART communication mode Refer to the HART setup manual or the PC configurator users manual for the detail. HART COMMUNICATION Protocol: HART communication protocol HART address range: 0 – 15 (factory set to 0) Transmission speed: 1200 bps Digital current: Approx. 1 mAp-p when communicating Character format: 1 Start Bit, 8 Data Bits, 1 Odd Parity Bit,

1 Stop Bit

Distance: 1.5 km (0.9 miles) HART communication mode: Master-Slave Mode and Burst Mode (factory set to Master-Slave) HART network mode: Point-to-Point Mode and Multi-drop Mode; automatically set to Multi-drop Mode when the address is set to other than 0. INPUT SPECIFICATIONS The input is factory set for use with K thermocouple, single input, 0 to 100°C, internal CJC sensor. See Table 1 for the available input type, the minimum span and the maximum range. ■ DC mV (dual input available) Input resistance: ≥ 1 MΩ ■ Thermocouple (dual input available)

MODEL: 27HU 27HU SPECIFICATIONS ES-7651 Rev.17 Page 2/5 http://www.m-system.co.jp/ Input resistance: ≥ 1 MΩ Burnout sensing: 33 μA External CJC sensor type: Pt 100 ■ RTD (2-wire, 3-wire or 4-wire) Input resistance: ≥ 1 MΩ Excitation: 0.2 mA Allowable leadwire resistance: Max. 10 Ω per wire ■ Resistance (2-wire, 3-wire or 4-wire) Input resistance: ≥ 1 MΩ Excitation: 0.2 mA Allowable leadwire resistance: Max. 10 Ω per wire OUTPUT SPECIFICATIONS Output range: 4 – 20 mA DC Operational range: 3.75 – 23 mA Load resistance vs. supply voltage: Load Resistance (Ω) = (Supply Voltage (V) – 8 (V)) ÷ 0.023 (A) (including leadwire resistance) Burnout: 3.75 – 3.8 mA or 21.5 – 23 mA (factory set to 23 mA) Upper output limit proportional to the input: 20 – 21.5 mA (factory set to 21.5 mA) Lower output limit proportional to the input: 3.8 – 4 mA (factory set to 3.8 mA) Update time: 440 msec. (660 msec. with dual input) Output characteristics for dual input: Average or Differential selectable INSTALLATION Supply voltage

• 8 – 35 V DC (non-approved)
• 8 – 28 V DC (approved) Operating temperature: -40 to +85°C (-40 to +185°F) (See Safety Parameters for use in a hazardous location.) Operating humidity: 0 to 95 %RH (non-condensing) Mounting: Head-mounting (DIN type B head) Weight: 50 g (1.76 oz) PERFORMANCE Accuracy: See Table 1. Cold junction compensation accuracy: ±0.5°C (±0.9°F) with internal CJC sensor Response time: ≤ 2 sec. (0 – 90 %) with damping time set to 0 and when not communicating via HART. Supply voltage effect: ±0.005 % of span/V Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 1500 V AC @1 minute (input to output) Safety integrity level according to IEC 61508: Suitable for use in a safety instrumented system up to SIL2 (together with sensor) if appropriate safety instructions are observed. Consult M-System. STANDARDS & APPROVALS EU conformity: ATEX Directive Ex ia EN 60079-11 EMC Directive EN 61326-1 RoHS Directive EN 50581 Safety approval: FM: Intrinsically safe Class I, Division 1, Groups A, B, C and D Class I, Zone 0, AEx ia IIC (US) Class I, Zone 0, Ex ia IIC (Canada) T4, T5 and T6 (Class 3610, ANSI/ISA 60079-11, CAN/CSA-C22.2 No. 157, CAN/CSA-C22.2 No. 60079-11) ATEX: Intrinsic safety II 1G, Ex ia IIC; T4, T5 and T6 (EN 60079-0) (EN 60079-11) SAFETY PARAMETERS Operating temperature For ATEX / FM: T4: -40 to +80°C T5: -40 to +60°C T6: -40 to +45°C Ex-data:
• Output circuit Ui (Vmax): 30 V DC Ii (Imax): 96 mA DC Pi (Pmax): 720 mW Ci: 1 nF Li: 0 mH
• Sensor circuit Uo (Voc): 30 V DC Io (Isc): 24 mA DC Po: 180 mW Co (Ca): 50 nF Lo (La): 40 mH

MODEL: 27HU 27HU SPECIFICATIONS ES-7651 Rev.17 Page 3/5 http://www.m-system.co.jp/ INPUT TYPE, RANGE & ACCURACY INPUT TYPE MINIMUM SAPN MAXIMUM SPAN ACCURACY TEMPERATURE DRIFT STANDARD DRIFT *2 ULTRA-LOW DRIFT *3 DC mV 4 mV -100 to +800 mV ±10 μV ±1 .5 μV/°C ±0.5 μV/°C Resistance 25 Ω 0 to 4 kΩ ±0.1 Ω ±15 mΩ /°C ±5 mΩ /°C Thermocouple °C °F TEMPERATURE DRIFT MINIMUM SAPN MAXIMUM RENGE ACCURACY MINIMUM SAPN MAXIMUM RENGE ACCURACY STANDARD DRIFT *2 ULTRA-LOW DRIFT *3 K (CA) E (CRC) J (IC) -180 to +1372 -100 to +1000 -100 to +1200 ±0.5 ±0.5 ±0.5 -292 to +2501 -148 to +1832 -148 to +2192 ±0.9 ±0.9 ±0.9 ±0.075°C/°C ±0.075°C/°C ±0.075°C/°C ±0.025°C/°C ±0.025°C/°C ±0.025°C/°C T (CC) B (RH) R 100 100 -200 to +400 400 to 1820 -50 to +1760 *4 ±0.5 180 180 -328 to +752 752 to 3308 -58 to +3200*4 ±0.9 ±1 .8 ±1 .8 ±0.075°C/°C ±0.3°C/°C ±0.3°C/°C ±0.025°C/°C ±0.1°C/°C ±0.1°C/°C S C (WRe 5-26) D (WRe 3-25) 100 100 100 -50 to +1760 *4 0 to 2300 0 to 2300 180 180 180 -58 to +3200*4 32 to 4172 32 to 4172 ±1 .8 ±1 .8 ±1 .8 ±0.3°C/°C ±0.3°C/°C ±0.3°C/°C ±0.1°C/°C ±0.1°C/°C ±0.1°C/°C N U L -180 to +1300 -200 to +600 -100 to +900 ±0.5 ±0.5 ±0.5 -292 to +2372 -328 to +1112 -148 to +1652 ±0.9 ±0.9 ±0.9 ±0.075°C/°C ±0.075°C/°C ±0.075°C/°C ±0.025°C/°C ±0.025°C/°C ±0.025°C/°C RTD °C °F TEMPERATURE DRIFT MINIMUM SAPN MAXIMUM RENGE ACCURACY MINIMUM SAPN MAXIMUM RENGE ACCURACY STANDARD DRIFT *2 ULTRA-LOW DRIFT *3 Pt 100 (JIS '97 , IEC) Pt 200 Pt 500 -200 to +850 -200 to +850 -200 to +850 ±0.1 ±0.1 ±0.1 -328 to +1562 -328 to +1562 -328 to +1562 ±0.18 ±0.18 ±0.18 ±0.015°C/°C ±0.015°C/°C ±0.015°C/°C ±0.005°C/°C ±0.005°C/°C ±0.005°C/°C Pt 1000 JPt 100 (JIS '89) Ni 100 (DIN 43760 '87) -200 to +850 -200 to +510 -60 to +250 ±0.1 ±0.1 ±0.2 -328 to +1562 -328 to +950 -76 to +482 ±0.18 ±0.18 ±0.36 ±0.015°C/°C ±0.015°C/°C ±0.015°C/°C ±0.005°C/°C ±0.005°C/°C ±0.005°C/°C *1 . DC mV: Or ±0.05 % of absolute range (greater of 0 % and 100 % range values), whichever is greater. Or ±0.2 % of absolute negative range for two inputs including negative ranges, whichever is greater. Resistance: Or ±0.05 % of absolute range (greater of 0 % and 100 % range values), whichever is greater. Thermocouple: Or ±0.05 % of span, whichever is greater. Add cold junction compensation error. RTD: Or ±0.05 % of max. range (greater of 0 % and 100 % range values converted into °C), whichever is greater. (For 2- or 3-wire RTD, the value is valid by the sensor calibration after wiring is complete.) *2. Or ±0.015 % of absolute range/°C (greater of 0 % and 100 % range values), whichever is greater. *3. Or ±0.005 % of absolute range/°C (greater of 0 % and 100 % range values), whichever is greater. *4. Conformance range: 50 to 1760°C or 122 to 3200°F EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 44 (1.73) dia. 6.3 (.25) 16.5 (.65) 6–M3 SCREW 2–4.5 (.18) dia. MTG HOLE 20.7 (.81) 19.5 (.77) 12.7 (.5) 1 4 7.6 (.30) dia.

MODEL: 27HU 27HU SPECIFICATIONS ES-7651 Rev.17 Page 4/5 http://www.m-system.co.jp/ MOUNTING REQUIREMENTS unit: mm (inch) 33 (1.30) 2–M4 SCREW The screws are to be provided by the customer. SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM ■ DC MILLIVOLT CJC Sensor Limited to 250 – 1100Ω for HART communication. A safety barrier must be installed for the intrinsic safety. The safety barrier must meet the Ex-data of this unit and must be approved for the hazardous location. *2. *3. Output Driver Output Computation Input Computation HART Comm. Low Drift Amplifier LOADOUTPUT 24V DC 4 – 20mA DC Isolation INPUT *1 *1. Input Connection Examples INPUT

• Two Inputs INPUT 1 INPUT 2
• Internal CJC
• External CJC comp. leadwire comp. leadwire
• Two-wire
• Three-wire
• Two Inputs, Internal CJC comp. leadwire
• Two Inputs, External CJC B B A B A
• Four-wire B B A A SENSOR 2 SENSOR 1 comp. leadwire SENSOR 2 SENSOR 1 Non-Hazardous LocationHazardous Location Safety Barrier ■ THERMOCOUPLE ■ RTD & RESISTANCE

MODEL: 27HU 27HU SPECIFICATIONS ES-7651 Rev.17 Page 5/5 http://www.m-system.co.jp/ Specifications are subject to change without notice.