CURRENT LOOP SUPPLY M5DYH2

M5DYH2

Super-mini Terminal Block Signal Conditioners M5-UNIT

CURRENT LOOP SUPPLY

(applicable to HART signal, opencircuit detection selectable)
Functions & Features
• Powers a 4 – 20 mA DC current loop
• Isolates and relays HART signals
• Shortcircuit protection
• Opencircuit detection selectable
• High-density mounting
• Power LED
Typical Applications
• 2-wire HART transmitters

MODEL: M5DYH2-A-R[1]

ORDERING INFORMATION

• Code number: M5DYH2-A-R[1]
Specify a code from below for [1].
  (e.g. M5DYH2-A-R/B/Q)
• Specify the specification for option code /Q
  (e.g. /C01/V01/S01)

INPUT

Current
4 – 20 mA DC (Input resistance approx. 250 Ω)

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.)

[1] OPTIONS (multiple selections)

Opencircuit detection
blank: none
/B: Opencircuit detector
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
ADJUSTMENT
/V01: Multi-turn fine adjustment
TERMINAL SCREW MATERIAL
/S01: Stainless steel

GENERAL SPECIFICATIONS

Construction: Terminal block
Connection: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Zero adjustment: -2 to +2 % (front)
Span adjustment: 98 to 102 % (front)
Power indicator LED: Green LED turns on when the power is supplied.
Opencircuit detection: Input current 0 mA when the output loop is open.
Photo MOSFET Relay ON Resistance; 3 Ω max.

SUPPLY OUTPUT

(across the terminals 3 – 4)
Output voltage: 24 – 28 V DC with no load
18 V DC min. at 20 mA
Current rating: ≤ 22 mA DC
• Shortcircuit Protection
Current limited: 45 mA max.
Protected time duration: No limit

INPUT SPECIFICATIONS

■ DC Current: Input resistor incorporated
Input current: ≥ 0 mA

OUTPUT SPECIFICATIONS

The output goes below 0 % when the input is open.
■ LOAD RESISTANCE: 200 - 300 Ω max. (250±10% required for HART communication)

HART COMMUNICATION

Transmission gain: Approx. -3 dB (within 1 – 3 kHz)
measured with 250 Ω at output
Loop impedance: 250 Ω ±10 %
Communication directions: Bidirectional

INSTALLATION

Power consumption
•DC: Approx. 2 W
Operating temperature: -20 to +65°C (-4 to +149°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: DIN rail
Weight: 80 g (2.8 oz)

PERFORMANCE in percentage of span

Accuracy: ±0.1 %
Temp. coefficient: ±0.02 %/°C (±0.01 %/°F)
Response time: ≤ 0.5 sec. (0 – 90 %)
Line voltage effect
  Supply output: ±3 % over voltage range
  Output signal: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute  (input to output to power to ground)

STANDARDS & APPROVALS