MODEL: M3LU

M3LU SPECIFICATIONS

ES-2652 Rev.20 Page 3/6

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

PERFORMANCE

Accuracy: See Table 1.

Cold junction compensation error:

±0.5°C maximum at 10 – 40°C

±1.0°C maximum at 0 – 50°C

±0.9°F maximum at 50 – 104°F

±1.8°F maximum at 32 – 122°F

Temp. coefficient:

±0.015 %/°C [±0.008 %/°F] at -5 to +55°C [23 to 131°F] of

max. range

±0.03 %/°C [±0.016 %/°F] for the following conditions:

• DC, T/C input spans ≤ 10 mV

• RTD, potentiometer, resistance spans ≤ 80 Ω

• in an ambient exceeding 55°C [131°F] or below -5°C

[23°F]

Response time: ≤ 0.2 sec. (0 – 90 %, DC input)

With the Option A, the Sync Filter set to the fastest

frequency on the PC Configurator Software. Default is set to

have 0.5 sec. response.

Burnout response: ≤ 10 sec.

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength

AC powered: 2000 V AC @ 1 minute

(input to output to power to ground)

DC powered: 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

■ CALCULATION EXAMPLES OF OVERALL ACCURACY IN %

• DC Voltage

1) 0 – 200 mV

Absolute value accuracy (Table 1): 40μV

40μV ÷ 200000μV × 100 = 0.02 % < 0.1 %

➠ Overall accuracy = ±0.1 % of span

2) 0 – 4 mV

Absolute value accuracy (Table 1): 10μV

10μV ÷ 4000μV × 100 = 0.25 % > 0.1 %

➠ Overall accuracy = ±0.25 % of span

• Thermocouple

1) K thermocouple, 0 – 1000°C

Absolute value accuracy (Table 1): 0.25°C

CJC error (0.5°C) added: 0.75°C

0.75°C ÷ 1000°C × 100 = 0.075 % < 0.1 %

➠ Overall accuracy including CJC error = ±0.1 % of span

2) K thermocouple, 50 – 150°C

Absolute value accuracy (Table 1): 0.25°C

CJC error (0.5°C) added: 0.75°C

0.75°C ÷ (150 – 50)°C × 100 = 0.75 % > 0.1 %

➠ Overall accuracy including CJC error = ±0.75 % of span

• RTD

1) Pt 100, -200 – 800°C

Absolute value accuracy (Table 1): 0.15°C

0.15°C ÷ (800 – -200)°C × 100 = 0.015 % < 0.1 %

➠ Overall accuracy = ±0.1 % of span

2) Pt 100, 0 – 100°C

Absolute value accuracy (Table 1): 0.15°C

0.15°C ÷ 100°C × 100 = 0.15 % > 0.1 %

➠ Overall accuracy = ±0.15 % of span

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

Approval:

UL/C-UL general safety requirements

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