MODEL: M2CRS
Super-mini Signal Conditioners Mini-M Series

RAMP BUFFER
Functions & Features• Limiting the rate of change of the output once the rate ofthe input exceeds the preset value• Rate-of-change adjustable up to 40 seconds
Typical Applications• Reducing the rate of change caused by a step change or
spikes on the input signal• Protecting equipment that cannot withstand rapidlychanging process variables
23 [.91]76[2.99]

ModelZERO

SPAN

124
[4.88]
mm [inch]

MODEL: M2CRS–[1][2]–[3][4]ORDERING INFORMATION• Code number: M2CRS-[1][2]-[3][4]Specify a code from below for each of [1] through [4].
(e.g. M2CRS-6A-M2/CE/Q)• Special input and output ranges (For codes Z & 0)
• Specify the specification for option code /Q(e.g. /C01/S01)

1: 0 – 10 mV DC (Input resistance 10 kΩ min.)
15: 0 – 50 mV DC (Input resistance 10 kΩ min.)
16: 0 – 60 mV DC (Input resistance 10 kΩ min.)
2: 0 – 100 mV DC (Input resistance 100 kΩ min.)
3: 0 – 1 V DC (Input resistance 1 MΩ min.)
4: 0 – 10 V DC (Input resistance 1 MΩ min.)
5: 0 – 5 V DC (Input resistance 1 MΩ min.)6: 1 – 5 V DC (Input resistance 1 MΩ min.)
4W: -10 – +10 V DC (Input resistance 1 MΩ min.)
5W: -5 – +5 V DC (Input resistance 1 MΩ min.)0: Specify voltage (See INPUT SPECIFICATIONS)[2] OUTPUT
Current
A: 4 – 20 mA DC (Load resistance 750 Ω max.)
B: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D: 0 – 20 mA DC (Load resistance 750 Ω max.)
E: 0 – 16 mA DC (Load resistance 900 Ω max.)
F: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)6: 1 – 5 V DC (Load resistance 5000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)0: Specify voltage (See OUTPUT SPECIFICATIONS)[3] POWER INPUT[1] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
A1: 4 – 20 mA DC (Input resistance 50 Ω)
B: 2 – 10 mA DC (Input resistance 500 Ω)
C: 1 – 5 mA DC (Input resistance 1000 Ω)
D: 0 – 20 mA DC (Input resistance 50 Ω)
E: 0 – 16 mA DC (Input resistance 62.5 Ω)
F: 0 – 10 mA DC (Input resistance 100 Ω)
G: 0 – 1 mA DC (Input resistance 1000 Ω)
H: 10 – 50 mA DC (Input resistance 100 Ω)
J: 0 – 10 μA DC (Input resistance 1000 Ω)
K: 0 – 100 μA DC (Input resistance 1000 Ω)
GW: -1 – +1 mA DC (Input resistance 1000 Ω)
FW: -10 – +10 mA DC (Input resistance 100 Ω)
Z: Specify current (See INPUT SPECIFICATIONS)
Voltage

AC Power
M: 85 – 264 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)(Select ‘/N’ for ‘Standards & Approvals’ code.)M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)(90 – 264 V for UL)
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.)(110 V ±10 % for UL)

M2CRS SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5082 Rev.18 Page 1/4

MODEL: M2CRS[4] 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)

Load resistance: Output drive 15 V max.
■ DC Voltage: -10 – +12 V DC
Minimum span: 5 mV
Offset: Max. 1.5 times span
Load resistance: Output drive 1 mA max.; at ≥ 0.5 V

INSTALLATIONSPECIFICATIONS 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)

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)

GENERAL SPECIFICATIONSPERFORMANCE in percentage of span

Construction: Plug-inConnection: M3 screw terminals (torque 0.8 N·m)
Screw terminal: Chromated steel (standard) or stainlesssteel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Overrange output: Approx. -10 to +120 % at 1 – 5 V
Rate-of-change adjustment: 260°-turn screwdriveradjustment (front)
Rate-of-change adjustment range: Approx. 0.5 to 40 sec. (0– 100 %; factory set to MIN.)
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)

Accuracy: ±0.2 %Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute (input to outputto power to ground)

INPUT SPECIFICATIONS■ DC Current:
Shunt resistor attached to the input terminals (0.5 W)
Specify input resistance value for code Z.
■ DC Voltage: -300 – +300 V DC
Minimum span: 3 mVOffset: Max. 1.5 times span
Input resistance
Span 3 – 10 mV : ≥ 10 kΩ
Span 10 – 100 mV : ≥ 10 kΩ
Span 0.1 – 1 V : ≥ 100 kΩ
Span ≥ 1 V : ≥ 1 MΩSTANDARDS & APPROVALS
EU conformity:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Measurement Category II (input)
Installation Category II (power)
Pollution Degree 2
Input or output to power: Reinforced insulation (300 V)
Input to output: Basic insulation (300 V)
RoHS Directive
Approval:
UL/C-UL nonincendive Class I, Division 2,Groups A, B, C, and D(ANSI/ISA-12.12.01, CAN/CSA-C22.2 No.213)
UL/C-UL general safety requirements(UL 61010-1, CAN/CSA-C22.2 No.61010-1)

OUTPUT SPECIFICATIONS■ DC Current: 0 – 20 mA DC
Minimum span: 1 mA
Offset: Max. 1.5 times span
M2CRS SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-5082 Rev.18 Page 2/4

MODEL: M2CRS
EXTERNAL VIEW
Rate-ofChange Adj.

Zero Adj.
Span Adj.

EXTERNAL DIMENSIONS unit: mm [inch]
6 [.23]
DIN RAIL
35mm wide

8–M3SCREW
10 [.39]

84 [3.31]

914 1315 [.59]

114 [4.49](4 [.16])72 [2.83]

12

4 [.16]21.5 [.85]559 [2.32]

70.5 [2.78]

2–4.2x5[.17x.20]
MTG HOLE
6 [.24] deep

4 1
823 [.91]• When mounting, no extra space is needed between units.

TERMINAL ASSIGNMENTS unit: mm [inch]

19 [.75]

INPUT RESISTOR(model: REM2)

4 18512914 13Input shunt resistor attachedfor current input.

M2CRS SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5082 Rev.18 Page 3/4

MODEL: M2CRSSCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Rate-of-change

Isolation+INPUTR–*1Low Drift
Amplifier

DigitalComputation

ZS

OutputDriver

9 +OUTPUT

412 –

513 U(+)

814 V(–)

POWER

Base Socket*Input shunt resistor attached for current input.

Specifications are subject to change without notice.

M2CRS SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5082 Rev.18 Page 4/4