ES-2457 Rev.1
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
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
UK conformity (UKCA):
The UK legislations and designated standards are equivalent to the applicable EU directives.
(Refer to our website for more information about the legislations and designated standards.)
FRONT VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM