MODEL: M2XR2

M2XR2 SPECIFICATIONS

ES-5087 Rev.11 Page 3/4

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

CALCULATION EXAMPLES OF OVERALL ACCURACY

[Example 1]

Input: Pt 100 (JIS ’97, IEC), 0 – 500°C

Output: 4 – 20 mA DC

1) ±0.15°C referred from Table 1, is converted into % by

the following equation: 0.15°C ÷ 500°C = 0.03%.

2) 0.03% ≤ 0.1% of span. ➠ 0.1% is selected.

3) Output span 16 mA (= 20 mA – 4 mA)

Max. span 20 mA

Output span ≥ 1/10 of max. span ➠ No need of adding

0.2%.

4) Overall accuracy equals ±0.1% of span

[Example 2]

Input: Pt 100 (JIS ’97, IEC), 0 – 100°C

Output: 2.0 – 2.5 V DC

1) ±0.15°C referred from Table 1, is converted into % by

the following equation: 0.15°C ÷ 100°C = 0.15%.

2) 0.15% ≥ 0.1% of span. ➠ 0.15% is selected.

3) Output span 0.5 V (= 2.5 V – 2.0 V)

Max. span 5 V

Output span ≤ 1/10 of max. span ➠ Add 0.2%.

4) Overall accuracy equals ±0.35% of span (0.15 + 0.2)

Table 1.

RTD

MIN.

SPAN

ACCURACY

USABLE RANGE

JPt 100 (JIS’89)

Pt 100 (JIS’97, IEC)

Pt 100 (JIS’89)

Pt 50Ω (JIS’81)

Ni 508.4Ω

Pt 1000

Ni 100

Cu 10 @25°C

°C

°C

°C

°C

°C

°C

°C

°C

°F

°F

°F

°F

°F

°F

°F

°F

20

36

20

36

20

36

20

36

20

36

20

36

20

36

20

36

-200 to +500

-328 to +932

-200 to +850

-328 to +1562

-200 to +850

-328 to +1562

-200 to +649

-328 to +1200

-50 to +200

-58 to +392

-200 to +200

-328 to +392

-50 to +200

-58 to +392

-50 to +200

-58 to +392

±0.15

±0.27

±0.15

±0.27

±0.15

±0.27

±0.15

±0.27

±0.15

±0.27

±0.15

±0.27

±0.15

±0.27

±0.50

±0.90

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 nonincendive Class I, Division 2,

Groups A, B, C, and D

(ANSI/ISA-12.12.01, CAN/CSA-C22.2 No.213)

UL/C-UL general safety requirements

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