MODEL: M3LU

M3LU SPECIFICATIONS

ES-2652 Rev.20 Page 2/6

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

GENERAL SPECIFICATIONS

Construction: Small-sized front terminal structure

Connection: Euro type connector terminal

mm)

Housing material: Flame-resistant resin (gray)

Isolation: Input to output to power

Overrange output: -15 to +115 %

Zero adjustment: -15 to +15 % (front)

Span adjustment: 85 to 115 % (front)

Burnout (other than current or voltage (V) input): Upscale,

downscale or no burnout selectable; Also detects wire

breakdown and overrange input exceeding the electrical

design limit for DC input.

Linearization (thermocouple & RTD input): Standard

Cold junction compensation (T/C): CJC sensor (included) to

be attached to the input terminals

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

Blinking patterns indicate operation status of the

transmitter.

Configuration:

PC Configurator: (Model: M3LUCFG) via Windows PC

connected to th front jack.

Programmable features include:

• I/O type and range

• Zero and span adjustments

• Burnout action

• User’s linearization table setting

• User’s T/C, RTD table setting

(Refer to the instruction manual)

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

range configured via the internal DIP switches, precise 0 %

and 100 % ranges are calibrated via the front control

buttons with a help of LED. Also I/O calibration and fine

adjustment are available with a PC.

Configurator connection: 2.5 dia. miniature jack;

RS-232-C level

INPUT SPECIFICATIONS

Input type and range are configurable. See Table 1 for the

available input type, the minimum span, the maximum

range, the conformance range and the input conversion

accuracy.

For type and range configuration, refer to the instruction

manual.

■ DC current: 50 Ω resistor incorporated

■ DC mV & voltage

Input resistance: ≥ 1 MΩ

■ Thermocouple

Input resistance: ≥ 1 MΩ

Burnout sensing: 130 nA ± 10 %

■ RTD (2-wire, 3-wire or 4-wire)

Excitation: 0.2 mA ± 10 %

Allowable leadwire resistance: Max. 20 Ω per wire

■ Resistance (2-wire, 3-wire or 4-wire)

Excitation: 0.2 mA ±10 %

Allowable leadwire resistance: Max. 20 Ω per wire

■ Potentiometer

Excitation: 0.2 mA ±10 %

Allowable leadwire resistance: Max. 20 Ω per wire

OUTPUT SPECIFICATIONS

Output type and range are as follows.

For type and range configuration, refer to the instruction

manual.

■ DC Current

Maximum range: 0 – 20 mA DC

Minimum span: 1 mA

Conformance range: 0 – 24 mA DC

(Negative overrange current below 0 mA is not available.)

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 maximum at 22 mA

■ DC Voltage

Narrow Spans

Maximum range: -2.5 – +2.5 V DC

Minimum span: 250 mV

Conformance range: -3 – +3 V DC

Wide Spans

Maximum range: -10 – +10 V DC

Minimum span: 1 V

Conformance range: -11.5 – +11.5 V DC

Offset: Lower range can be any specific value within the

output range provided that the minimum span is

maintained.

Load resistance: Output drive 10 mA maximum; 5 mA for

negative output

INSTALLATION

Power Consumption

•AC:

Approx. 4 VA at 100 V

Approx. 5 VA at 200 V

Approx. 6 VA at 264 V

•DC: Approx. 2 W

Operating temperature: -25 to +65°C (-13 to +149°F)

Max. 55°C (131°F) for UL approval

Operating humidity: 0 to 95 %RH (non-condensing)

Mounting: DIN rail

Weight: 100 g (3.53 oz)