A3DYH MSYSTEM | Alldatasheet

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MODEL: A3DYH A3DYH SPECIFICATIONS ES-5971 Rev.8 Page 1/4 http://www.m-system.co.jp/ Intrinsically Safe Galvanic Isolators A3-UNIT Series CURRENT LOOP SUPPLY (HART communication) Functions & Features

  • Powers a 4 – 20 mA DC current loop
  • Isolated intrinsically safe associated apparatus: no need of grounding
  • Isolates and relays HART signals bidirectionally
  • Shortcircuit protection
  • Power LED Typical Applications
  • 2-wire HART transmitters 18 (.71) 106 (4.17) 110.5 (4.35) mm (inch) MODEL: A3DYH–[1]A–R

ORDERING INFORMATION

  • Code number: A3DYH-[1]A-R Specify a code from below for [1]. (e.g.: A3DYH-0A-R) For the safety approval code 2, specify the product’s destination country using Ordering Information Sheet (No. ESU-5971). [1] SAFETY APPROVAL 0: None 1: FM intrinsically safe 2: CENELEC intrinsic safety (ATEX) INPUT Current 4 – 20 mA DC OUTPUT Current A: 4 – 20 mA DC POWER INPUT DC Power R: 24 V DC (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) GENERAL SPECIFICATIONS Construction: Stand-alone; terminal access at the front Connection: Euro type connector terminal (applicable wire size: 0.2 to 2.5 mm2, stripped length: 8 mm) Housing material: Flame-resistant resin (gray) Isolation: Input to output to power Overrange output: Approx. -10 to +110 % Zero adjustment: -2 to +2 % (front) Span adjustment: 98 to 102 % (front) Power indicator LED: Green LED turns on while the power is supplied. SUPPLY OUTPUT ■ SUPPLY OUTPUT (across the terminals 1 – 2, 4 – 5) Output voltage: Approx. 22 V DC with no load 14 V DC minimum at 20 mA. A loop-powered device (e.g. indicator) through which the A3DYH supplies excitation voltage to a two-wire transmitter causes a certain voltage drop. Be sure that the voltage after the drop remains within the transmitter’s operating range. Current rating: ≤ 22 mA DC
  • Shortcircuit Protection Current limited: 30 mA max. Protected time duration: No limit INPUT SPECIFICATIONS ■ INPUT: Input resistor incorporated. Approx. 330Ω as two-wire transmitter excitation supply; approx. 45 Ω as isolator with 4 – 20 mA input OUTPUT SPECIFICATIONS ■ LOAD RESISTANCE: 550 Ω max. (230 min. required for HART communication) HART COMMUNICATION Frequency band: 500 Hz – 5 kHz (within -3 dB) Communication directions: Bidirectional INSTALLATION Power consumption
  • DC: Approx. 3 W Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 0 to 95 %RH (non-condensing)

MODEL: A3DYH A3DYH SPECIFICATIONS ES-5971 Rev.8 Page 2/4 http://www.m-system.co.jp/ Mounting: DIN rail Weight: 130 g (0.29 lb) PERFORMANCE in percentage of span Accuracy: ±0.1 % Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) Response time: ≤ 0.1 sec. (0 – 90 %) Line voltage effect: ±0.1 % over voltage range Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 1500 V AC @ 1 minute (input to output or power to ground)

500 V AC @ 1 minute (output to power)

STANDARDS & APPROVALS Refer to the manuals to comply with the standards. EU conformity: ATEX Directive (for ATEX intrinsic safety) Ex ia EN 60079-11 EMC Directive EMI EN 61000-6-4 EMS EN 61000-6-2 RoHS Directive EN 50581 Safety approval: FM: Intrinsically safe associated apparatus Class I, Div. 1, Groups A, B, C and D Class II, Div. 1, Groups E, F and G Class III, Div. 1 Class I, Zone 0, [AEx ia] IIC (Class 3600) (Class 3610) (ANSI/ISA 60079-0) (ANSI/ISA 60079-11) CENELEC: Intrinsic safety associated apparatus (ATEX) II (1) G, [Ex ia Ga] IIC (EN 60079-0) (EN 60079-11)

MODEL: A3DYH A3DYH SPECIFICATIONS ES-5971 Rev.8 Page 3/4 http://www.m-system.co.jp/ HART COMMUNICATION ■ CENELEC (ATEX) Terminal No. Voltages, Currents and Powers Group Co [μF] Lo [mH] Lo / Ro [μH / Ω] Ci [μF] Li [μH] 1 or 4 to 2, 3 or 5 Uo = 26.25V Io = 88.4mA Po = 580mW 2 or 5 to 3 Uo = 1 .1V Io = 45mA Po = 13mW IIC, IIB or IIA Ui = 30V Ii = 250mA Pi = 1W IIC, IIB or IIA ---- ---- ---- 0 0 7 to 8 and 11 to 12 Um = 250Vrms ---- ■ FM Terminal No. Voltages, Currents and Powers Group (NEC 500) Group (NEC 505) Ca (Co) [μF] La (Lo) [mH ] La / Ra (Lo / Ro) [μH / Ω] 1 or 4 to 2, 3 or 5 Voc (Uo) = 27 .5V Isc (Io) = 93mA Po = 640mW A or B IIC 0.075 4 54 C or E IIB 0.65 16.2 220 D, F or G IIA 2.15 32.5 442 2 or 5 to 3 Voc (Uo) = 1 .1V Isc (Io) = 45mA Po = 13mW A, B, C, D E, F or G IIC, IIB or IIA 100 18 ---- 7 to 8 and 11 to 12 Um = 250Vrms ---- EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 10 11 12 4 5 6 1 2 3 7 8 9 106 (4.17) 62 (2.44) [5 (.20)] DIN RAIL 35mm wide

  • When mounting, no extra space is needed between units.

MODEL: A3DYH A3DYH SPECIFICATIONS ES-5971 Rev.8 Page 4/4 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Isolation Euro Type Connector Terminal Output Driver OUTPUT POWER SZ Low Drift Amplifier 4–20mADC RL HHC HHC *Hand-held communicator 2-WIRE XMTR 4–20mA SIGNAL Safety Barrier Shortcircuit Protection Excitation Supply POWER LED Non-Hazardous LocationHazardous Location Specifications are subject to change without notice.