MODEL: M3LM

M3LM SPECIFICATIONS

ES-2663 Rev.11 Page 2/4

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

• Burnout action

• User’s linearization table setting (max. 125 points,

specified within -15 to +115 % for both input and output)

(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

■ Potentiometer: Total resistance 90 Ω – 20 kΩ

Minimum span of each range

0 - 90 Ω : 2.5 Ω

0 - 200 Ω : 3 Ω

0 - 400 Ω : 3 Ω

0 - 1000 Ω : 10 Ω

0 - 20 kΩ : 10 Ω

Excitation: ≤ 0.65 V DC (at 1 kΩ)

OUTPUT SPECIFICATIONS

■ 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 12 V maximum

■ 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 1 mA maximum

INSTALLATION

Power consumption

•DC: Approx. 3 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)

PERFORMANCE

Accuracy: Input Accuracy + Output Accuracy

Input accuracy: (% of input range) inversely proportional to

the span

0 – 90 Ω : ±0.02 (%)

0 – 200 Ω : ±0.02

0 – 400 Ω : ±0.01

0 – 1000 Ω : ±0.01

0 – 20 kΩ : ±0.02

Output accuracy (% of output range): ±0.04 %; inversely

proportional to the span.

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

range at -5 to +55°C (23 to 131°F)

Response time: ≤ 0.9 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: 1500 V AC @ 1 minute

(input to output or power to ground)

500 V AC @ 1 minute (output to power)

CALCULATION EXAMPLES OF OVERALL ACCURACY

[Example] Input Range 250 – 750 Ω, Output Range 1 – 5 V

Max. Input Range (1000 Ω) ÷ Span (500 Ω) × 0.01 % + Max.

Output Range (20 V) ÷ Span (4 V) × 0.04 % = 0.22 %

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive

EN 50581

Approval:

UL/C-UL general safety requirements

(UL 61010-1, CAN/CSA-C22.2 No.1010-1)