MODEL: M2EXR
Super-mini Signal Conditioners withDisplay Mini-M M2E Series
RTD TRANSMITTER(PC programmable)
Functions & Features• Accepts direct input from a RTD and provides a linearizedprocess signal• Adjustments with the front button• Wide selection of RTD• Leadwire resistance compensation• OEL display with good visibility
Typical Applications• Long distance transmission between the RTD and thetransmitter

29.5[1.16]

83[3.27]

Up[1] POWER INPUTAC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)[2] OPTIONS
blank: none
/Q: With options (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
TERMINAL SCREW MATERIAL/S01: Stainless steel
EX-FACTORY SETTING/SET: Preset according to the Ordering Information Sheet(No. ESU-5144)

ModeDownSet124[4.88]RELATED PRODUCTS• M2E configurator software (model: M2ECFG)
Downloadable at our web site.
A dedicated cable is required to connect the module to thePC. Please refer to the internet software download site or
the users manual (EM-5147) for the M2E configurator for
applicable cable types.

mm [inch]

MODEL: M2EXR–[1][2]ORDERING INFORMATION• Code number: M2EXR-[1][2]Specify a code from below for each of [1] and [2].
(e.g. M2EXR-M2/Q)• Specify the specification for option code /Q(e.g. /C01/S01/SET)GENERAL SPECIFICATIONSINPUT – Field-selectable
RTD
JPt 100 (JIS'89), Pt 100 (JIS'89), Pt 100 (JIS'97, IEC),
Pt 50Ω (JIS'81), Ni 508.4Ω, Pt 1000, Ni 100, Cu 10 @ 25℃

OUTPUT – Field-selectable◆ DC Output• Current output: 0 - 20 mA DC• Voltage output: -5 - +5 V DC
• Voltage output: -10 - +10 V DC

Construction: Plug-in
Connection: M3 screw terminals (torque 0.8 N·m)
Screw terminal: Chromated steel (standard) or stainlesssteel
Housing material: Flame-resistant resin (gray)
Isolation: Input to output to powerOverrange output: Approx. -10 to +110 % (Not available forcurrent output not greater than 0 mA)
Input zero fine adj. range: -10 to +10℃ (front button)
Input span fine adj. range: -10 to +10℃ (front button)
Output zero fine adj. range: -5 to +5% (front button)
Output span fine adj. range: 95 to 105% (front button)
Burnout protection: Upscale standard; downscale or noburnout optional by programming
Linearization: Standard
Output setting: DIP Switch on side panel (refer to theM2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5144 Rev.5 Page 1/6

MODEL: M2EXRinstruction manual)
Configuration: Program with front buttons or Via PC.
Programmable features include: Refer to the parameter list.
Configurator connection: 2.5 dia. miniature jack;RS-232-C level

DISPLAY
Display functions: Displays and sets measured range,engineering unit
Display size: Approx. 15.6 × 20.8 mm (0.61” × 0.82”)
Number of pixels: 68 × 95 (horizontal × vertical)
Character color: Yellow
Display life: Approx. 60000 hours(Expected time for the Display brightness to be reduced to50 % when the Display is used continuously with brightness
setting 2 in 25 ℃)
Display type: OEL display
Display digit: Negative 5 digits, positive 6 digits (-99999 to999999)
Decimal point position:· Input display: None, number of decimal places 1 or 2· Output display: Settable arbitrarily

INPUT SPECIFICATIONS
Input: 2- or 3-wire RTD
Maximum leadwire resistance: 50 Ω per wire
Sensing current:
Pt 100, JPt 100, Pt 50 Ω, Ni 100, Cu 10: approx. 1.0 mA
Pt 1000, Ni 508.4 Ω: approx. 0.2 mA
Measurement rang: -5 to +105% of input setting value
Refer to the operating manual (EM-5144-B) for changing
input range, setting value.

OUTPUT SPECIFICATIONS■ DC Current
Output range: 0 – 20 mA DC
Conformance range: 0 – 22mA DC
Minimum span: 1 mA
Offset: Lower range can be any specific value within theoutput range provided that the minimum span ismaintained.
Load resistance: Output drive 15 V max.
(Not available to output less than 0 mA, output range may
not be extended to -10 %)■ DC Voltage
Output range: -5 - +5 V DC, -10 - +10 V DC
Conformance range: -6.0 - +6.0 V DC, -12 - +12 V DC
Minimum span: 250 mV, 1 V
Offset: Lower range can be any specific value within theoutput range provided that the minimum span ismaintained.

Load resistance: Output drive 1 mA max.

INSTALLATIONPower Consumption•AC:Max. 4.5 VA at 100 V
Max. 6.5 VA at 200 V
Max. 8.5 VA at 264 V•DC: Max. 2.3 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 10 to 85 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: Approx. 200 g (0.44 lb)

PERFORMANCE
Overall accuracy: Input accuracy + output accuracy
Inversely proportional to the span.
See CALCULATION EXAMPLES OF OVERALL ACURACY.
• Input accuracy:
Input accuracy of table 1 or ±0.1 % of span, whichever isgreater.
Pt, JPt: ±0.15℃
Ni: ±0.2℃
Cu10: ±1.0℃• Display accuracy:
Input display: Input accuracy ±1 digit
Output display: Input accuracy + output accuracy ±1 digit• Output accuracy: ±0.04 % of max. output range
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) of max. span
Input resolution: Max. 18 bits
Output resolution: Max. 16 bits
Response time (filter time constant: 0 sec.): ≤ 0.5 sec.
(0 – 90 %)Burnout response: ≤ 10 sec.
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)

M2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5144 Rev.5 Page 2/6

MODEL: M2EXR
CALCULATION EXAMPLES OF OVERALL ACCURACY[Example] Input Range Pt 100 (JIS'97, IEC) RTD, 0 – 100°C,Output Range 0 – 20 mA, Output Setting 4 – 20 mA■ Overall accuracy• Input Accuracy1) Absolute value accuracy (Table 1): 0.15°C
2) 0.15°C ÷ 100°C × 100 = 0.15 %3) 0.15 % > 0.1 % of span. ➠ 0.15 % is selected.
• Output Accuracy = Output Range Span (20 mA) ÷ Output Span Setting (16 mA) × 0.04 % = 0.05 %Overall Accuracy = 0.15 + 0.05 = ±0.2 %[Table 1]
INPUT RANGE
JPt 100 (JIS’ 89)
Pt 100 (JIS’ 89)
Pt 100 (JIS’ 97, IEC)
Pt 50 Ω (JIS’ 81)
Ni 508.4 Ω
Pt 1000
Ni 100
Cu 10 @ 25°C
INPUT RANGE
JPt 100 (JIS’ 89)
Pt 100 (JIS’ 89)
Pt 100 (JIS’ 97, IEC)
Pt 50 Ω (JIS’ 81)
Ni 508.4 Ω
Pt 1000
Ni 100
Cu 10 @ 25°C
INPUT RANGE
JPt 100 (JIS’ 89)
Pt 100 (JIS’ 89)
Pt 100 (JIS’ 97, IEC)
Pt 50 Ω (JIS’ 81)
Ni 508.4 Ω
Pt 1000
Ni 100
Cu 10 @ 25°C

MINIMUM SPAN
2020202020202020
MINIMUM SPAN
3636363636363636
MINIMUM SPAN
2020202020202020°C
SETTING RANGE-200.00 to +500.00-200.00 to +650.00-200.00 to +850.00-200.00 to +649.00-50.00 to +200.00-200.00 to +850.00-50.00 to +200.00-50.00 to +250.00°F
SETTING RANGE-328.00 to +932.00-328.00 to +1202.00-328.00 to +1562.00-328.00 to +1200.20-58.00 to +392.00-328.00 to +1562.00-58.00 to +392.00-58.00 to +482.00
KSETTING RANGE
73.15 to 773.15
73.15 to 923.15
73.15 to 1123.15
73.15 to 922.15
223.15 to 473.15
73.15 to 1123.15
223.15 to 473.15
223.15 to 523.15

ACCURACY±0.15±0.15±0.15±0.15±0.20±0.15±0.20±1.00
ACCURACY±0.27±0.27±0.27±0.27±0.36±0.27±0.36±1.80
ACCURACY±0.15±0.15±0.15±0.15
±0.20
±0.15
±0.20
±1.00

STANDARDS & APPROVALS
EU conformity:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
Installation Category II
Pollution Degree 2
Input or output to power: Reinforced insulation (300 V)
Input to output: Basic insulation (300 V)
RoHS Directive

M2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-5144 Rev.5 Page 3/6

MODEL: M2EXR
EXTERNAL VIEW
Display
PERCENT

100.00%OUTPUT

20.000mA

Up Button
Down Button

Mode Button
UpModeSW187654321Set Button
ONOutput Setting DIP SW

OFFSW1

Configurator Jack
Down

876543
2
1Set

ONOFFCOMPONENTFUNCTION

Display

Indicates present values, setting values and abnormal information.
Two types of present values are displayed respectively at the upper and lower parts according to setting.

Mode Button

Shifts from Measuring mode to each setting mode.
The destination changes depending on how long the button is held down.
Pressing Mode button for ≥ 2 seconds returns to Measuring mode from each setting mode..

Set Button

Shifts the setting value of each setting parameter item to a setting changeable state.
When at setting changeable state, used to move through the digits of setting value for input/output scaling
and to enter (save) the setting value.

Up Button

Shifts through setting parameter items and to increase or select the setting value.

Down Button

Shifts through setting parameter items and to decrease or select the setting value.

Configurator Jack

Used to perform configuration with M2E configurator software (model: M2ECFG).
When using the software, set the Lockout setting of the unit to ‘Lock’.

Refer to the operating manual (EM-5144-B) for detailed procedures.

M2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5144 Rev.5 Page 4/6

MODEL: M2EXR
PARAMETER LIST
It is available to configure or confirm settings shown below by using front button. Configuring or confirming with PC is available whenusing M2E configurator software (model: M2ECFG).
MODEITEMSETTING PARAMETER RANGEUNIT

INITIAL VALUE

Basic setting

01

Lockout setting

Lock / Unlock—Lock

11

Input range

JPt 100 (JIS’89)
Pt 100 (JIS’89)
Pt 100 (JIS’97, IEC)
Pt 50 Ω (JIS’81)
Ni 508.4 Ω
Pt 1000
Ni 100
Cu 10 @ 25°C—

Pt 100 (JIS’97, IEC)

120 % input setting

JPt 100 (JIS’89) : -200.00 – 480.00
Pt 100 (JIS’89) : -200.00 – 630.00
Pt 100 (JIS’97, IEC) : -200.00 – 830.00
Pt 50 Ω (JIS’81) : -200.00 – 629.00
Ni 508.4 Ω : -50.00 – 180.00
Pt 1000 : -200.00 – 830.00
Ni 100 : -50.00 – 180.00
Cu 10 @ 25°C : -50.00 – 230.00

°C0.0

13

100 % input setting

JPt 100 (JIS’89) : -180.00 – 500.00
Pt 100 (JIS’89) : -180.00 – 650.00
Pt 100 (JIS’97, IEC) : -180.00 – 850.00
Pt 50 Ω (JIS’81) : -180.00 – 649.00
Ni 508.4 Ω : -30.00 – 200.00
Pt 1000 : -180.00 – 850.00
Ni 100 : -30.00 – 200.00
Cu 10 @ 25°C : -30.00 – 250.00

°C

100.0

16

Input decimal point

No decimal point
The number of decimal places : 1 or 2—1 place of decimals17Output range

0 – 20 mA, -5 – +5 V, -10 – +10 V—

0 – 20 mA

180 % output setting

0.000 – 19.000-5.000 – 4.750-10.000 – 9.000

mA
V
V

4.000

19

100 % output setting

1.000 – 20.000-4.750 – 5.000-9.000 – 10.000

mA
V
V

20.000200 % output scaling-99999 – 999999

—

0.00

21

100 % output scaling-99999 – 999999—

100.0022

Output decimal point

No decimal point
The number of decimal places : 1 – 5—

2 places of decimals

OptionAdvanced

26

Loop test-10.00 – 110.00%Cancel51

Burnout

None / Down / Up—Up

52

Sensor wires

2 Wires / 3 Wires—

3 Wires53

Wire resistance

0.00 – 100.00

Ω0.00

61

Unit (OUT Scaling)

Choose from 68 types*—%64

Temperature unit

°C / °F / K—°C

67Filter time constant0 – 30sec.

069

Input Zero fine adjust-10.00 – 10.00

°C

0.00

70

Input Span fine adjust-10.00 – 10.00

°C

0.00

71

Output Zero fine adjust-5.000 – 5.000

%

0.000

72

Output Span fine adjust

95.000 – 105.000%

100.000

01

Lockout setting

Lock / Unlock—Lock90

Display setting

Upper: choose from 5 types*
Lower: choose from 6 types*—

Upper: INPUT
Lower: PERCENT

91

Brightness

1 (darkest) – 4 (brightest)—

492

Display timeout

0 (always on), 1 – 60

min.

1093

Reset all settings

OFF / RESET

—

OFF

94

Version indication

—

——

01

Lockout setting

Lock / Unlock

—

Lock

* For detailed types, refer to the operating manual (EM-5144 -B).

M2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5144 Rev.5 Page 5/6

MODEL: M2EXR
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
6 [.23]5 4
59 [2.32]

6DIN RAIL
35mm wide8

29 [1.14][.31]

11–M3SCREW

8972 [2.83]

83 [3.27]

36 [1.42]

3 2 1
2–4.2x5[.17x.20]
MTG HOLE
6 [.24] deep

8 7
11 10
22 [.87]

94 [3.70]

29.5 [1.16]

124 [4.88](4 [.16])[.31]• When mounting, no extra space is needed between units.

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
RTD
2-wire3-wire

AA

1B

2B

4B

Isolation
Low Drift
Amplifie& Burnout

DigitalComputation
CircuitOutput Setting
DIP SWOutput
Driver

7 +OUTPUT

8 –10 U(+)

Display
Circuit

35CONTROL
SW

POWER

11 V(–)
96
CONFIGURATOR

JACK
Base Socket

Specifications are subject to change without notice.

M2EXR SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-5144 Rev.5 Page 6/6