MODEL: M2LR

M2LR SPECIFICATIONS

ES-5057 Rev.3 Page 2/3

http://www.m-system.co.jp/

selectable with DIP switches

Status indicator LED: Tri-color (green/amber/red) LED;

Blinking patterns indicate operation status of the

transmitter.

Configuration

‘One-Step Cal’ calibration: With I/O type and the full-scale

range configured via the side DIP switches, precise 0 % and

100 % ranges are calibrated via the front control buttons

with a help of LED.

PC configurator: Via Windows PC connected to the front

jack.

Programmable features include:

•I/O type and range

•Zero and span adjustments

•Burnout

•User’s linearization table

Configurator connection: 2.5 dia. miniature jack;

RS-232-C level

INPUT SPECIFICATIONS

Maximum leadwire resistance: 20 Ω per wire (3-wire)

Sensing current: ≤ 1.2 mA

If not specified, the input range is 100°C.

OUTPUT SPECIFICATIONS

■ DC Current

Maximum range: 0 – 20 mA DC

Conformance range: 0 – 24 mA 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 12 V max.

(e.g. 4 – 20 mA: 600 Ω [12 V ÷ 20 mA])

If not specified, the output range is 4 – 20 mA DC.

■ DC Voltage

Code V1 (narrow spans)

Conformance range: -3 – +3 V DC

Output range: -2.5 – +2.5 V DC

Minimum span: 250 mV

Code V2 (wide spans)

Conformance range: -11.5 – +11.5 V DC

Output range: -10 – +10 V DC

Minimum span: 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.

(e.g. 1 – 5 V: 5000 Ω [5 V ÷ 1 mA])

If not specified, the output range is shown below.

V1: 0 – 1 V DC

V2: 1 – 5 V DC

INSTALLATION

Power Consumption

•AC:

Approx. 4 VA at 100 V

Approx. 5 VA at 200 V

Approx. 6 VA at 264 V

Operating temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 120 g (0.26 lb)

PERFORMANCE

Overall accuracy: Input accuracy + output accuracy

Inversely proportional to the span.

See CALCULATION EXAMPLES OF OVERALL ACURACY.

• Input accuracy: (whichever is greater)

±0.1 % of FS or ±0.15°C (Pt and JPt)

±0.1 % of FS or ±1°C (Cu 10)

• Output accuracy: ±0.04 % of max. output range

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F) of max. span

Response time: ≤ 1 sec. (0 – 90 %)

Burnout response time: ≤ 1 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 output

to power to ground)

CALCULATION EXAMPLES OF OVERALL ACCURACY

[Example] Pt 100, 0 – 100°C, Output Type -10 – +10 V,

Output Range 1 – 5 V

Input Accuracy* (0.15°C**) ÷ Span (100°C) × 100 %

+ Max. Output Range (20 V) ÷ Span (4 V) × 0.04 %

= ±0.35 %

*Calculate the accuracy in °C.

**100°C × 0.1 % = 0.1°C ≤ 0.15°C. 0.15°C is used as input

accuracy value.