M2EXM POTENTIOMETER TRANSMITTER

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M2EXM POTENTIOMETER TRANSMITTER
(PC programmable)

Functions & Features
• Provides a DC output proportional to a potentiometer or slidewire position input
• Adjustments with the front button
• Potentiometer’s zero/span points can be captured by on-site calibrations
• OEL display with good visibility
Typical Applications
• Tank levels
• Positions: Compensating non-linear signal from the linking mechanism of a position detector

MODEL: M2EXM-[1][2]

ORDERING INFORMATION
• Code number: M2EXM-[1][2]
Specify a code from below for each [1] and [2].
(e.g. M2EXM-M2/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01/SET)

INPUT
Total resistance 100 Ω – 10 kΩ

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

[1] POWER INPUT
AC 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 M-System's 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-5135)

RELATED PRODUCTS
• M2E configurator software (model: M2ECFG)
Downloadable at M-System’s web site.
A dedicated cable is required to connect the module to the PC. Please refer to the internet software download site or the users manual (EM-5147) for the M2E configurator for applicable cable types.

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 (gray)
Isolation: Input to output to power
Overrange output: Approx. -5 to +105 % (Not available for current output not greater than 0 mA)
Manual zero adjustments: -5 to +5 %
(factory setting: 0 %)
Manual span adjustments: 95 to 105 %
(factory setting: 100 %)
Output setting: DIP Switch on side panel (refer to the instruction 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 to 50 % 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 to 999999)
Decimal point position: Selectable

INPUT SPECIFICATIONS
Minimum span: 5 % of total resistance
Excitation: Approx. 0.5 V DC

OUTPUT SPECIFICATIONS
■ DC Current
Output range: 0 – 20 mA DC
Conformance range: 0 – 21mA DC
Minimum span: 1 mA
Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance: Output drive 15 V max.
(Not available to output less than 0 mA, output range may not be extended to -5 %)
■ DC Voltage
Output range: -5 - +5 V DC, -10 - +10 V DC
Conformance range: -5.5 - +5.5 V DC, -11 - +11 V DC
Minimum span: 250 mV, 1 V
Offset: Lower range can be any specific value within the output range provided that the minimum span is maintained.
Load resistance: Output drive 1 mA max.

INSTALLATION
Power 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 (without linearization)
Accuracy: Input accuracy + output accuracy
Inversely proportional to the span.
Input accuracy (% of max. input range): ±1Ω or 0.05 %, whichever is greater.
Display accuracy:
Input display: Input accuracy ±1 digit
Output display: Input accuracy + output accuracy ±1 digit
Output accuracy: ±0.04 % of max. output range
Refer to 'CALCULATION EXAMPLES OF OVERALL ACCURACY'.
Temp. coefficient (% of max. I/O range): ±0.015 %/°C (±0.008 %/°F)
Input resolution: Max. 18 bits
Output resolution: Max. 16 bits
Response time (filter time constant: 0 sec.): ≤ 0.5 sec.
(0 – 90 %)
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 output to power to ground)

CALCULATION EXAMPLES OF OVERALL ACCURACY
[Example] Total Resistance 1000 Ω, Input Setting 100 – 600 Ω, Output Range 0 – 20 mA, Output Setting 4 – 20 mA
■ Overall accuracy
• Input Accuracy = Total Resistance (1000 Ω) ÷ Input Span Setting (500 Ω) × 0.05 % = 0.1 %
• Output Accuracy = Output Range Span (20 mA) ÷ Output Span Setting (16 mA) × 0.04 % = 0.05 %
Overall Accuracy = 0.1 + 0.05 = ±0.15 %

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
EN 50581

EXTERNAL VIEW

Refer to the operating manual (EM-5135-B) for detailed procedures.

PARAMETER LIST

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM