ES-5024 Rev.19

M2DL

Super-mini Signal Conditioners Mini-M Series

CURRENT LOOP SUPPLY

(with square root extractor; non-isolated)
Functions & Features
• Powers a 4 – 20 mA DC current loop
• Square root extraction
• Shortcircuit protection
• Applicable to smart transmitters
Typical Applications
• Various 2-wire transmitters
 

MODEL: M2DL–24-[1][2]

ORDERING INFORMATION

• Code number: M2DL-24-[1][2]
Specify a code from below for each of [1] and [2].
  (e.g. M2DL-24-R/CE/Q)
• Specify the specification for option code /Q
  (e.g. /C01/S01)

SUPPLY OUTPUT

24: 24 V DC

INPUT

Current
4 – 20 mA DC (Input resistance 310 Ω)

OUTPUT

Voltage
1 – 5 V DC (Load resistance 10 kΩ min.)

[1] POWER INPUT

AC Power
M: 85 – 264 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz) 
(Select ‘/N’ for ‘Standards & Approvals’ code.)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
R2: 11 – 27 V DC
(Operational voltage range 11 – 27 V, ripple 10 %p-p max.)
(Select ‘/N’ for ‘Standards & Approvals’ code.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
(Select ‘/N’ for ‘Standards & Approvals’ code.)

[2] OPTIONS (multiple selections)

Standards & Approvals (must be specified)
/N: Without CE or UL
/CE: CE marking
/UL: UL approval, CE marking
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 (UL not available)
/C04: Polyolefin coating (UL not available)
TERMINAL SCREW MATERIAL
/S01: Stainless steel (UL not available)

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3 screw terminals (torque 0.8 N·m)
Screw terminal: Chromated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input or output to power
Overrange output: 0 to 110 % at 1 – 5 V
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Low-end cutout: Approx. 4 – 8 % (output)

SUPPLY OUTPUT

Output voltage: 24 – 28 V DC with no load
Current rating: ≤ 22 mA DC
Shortcircuit Protection
Current limited
: 30 mA max.
Protected time duration: No limit

INPUT SPECIFICATIONS

DC Current: Input resistor incorporated

INSTALLATION

Power Consumption
AC:
 Approx. 3 VA at 100 V
 Approx. 4 VA at 200 V
 Approx. 5 VA at 264 V
DC: Approx. 3 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 150 g (0.33 lb)

PERFORMANCE in percentage of span

Accuracy: ±0.2 % (input 1 – 100 %)
Temp. coefficient: ±0.015 %/°C (±0.008 %/°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 or output to power to ground)

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
RoHS Directive
Approval:
UL/C-UL nonincendive Class I, Division 2,
  Groups A, B, C, and D
  (UL 121201, CAN/CSA-C22.2 No.213-17)
UL/C-UL general safety requirements
  (UL 61010-1, CAN/CSA-C22.2 No.61010-1-12)

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM