MODEL: M2EXT

M2EXT SPECIFICATIONS

ES-5145 Rev.3 Page 3/7

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

CALCULATION EXAMPLES OF OVERALL ACCURACY

[Example] Input Range K thermocouple, 0 – 1000°C, Output Range 0 – 20 mA, Output Setting 4 – 20 mA

■ Overall accuracy

• Input Accuracy

1) Absolute value accuracy (Table 1): 1.00°C

2) CJC error (0.5°C) added: 1.50°C

3) 1.50°C ÷ 1000°C × 100 = 0.15 %

4) 0.15 % > 0.1 % of span. ➠ 0.15 % is selected.

• Output Accuracy = Output Range Span (20 mA) ÷ Output Span Setting (16 mA) × 0.04 % = 0.05 %

Overall Accuracy = 0.15 + 0.05 = ±0.20 %

[Table 1]

INPUT RANGE

°C

MINIMUM SPAN

SETTING RANGE

ACCURACY

CONFORMANCE RANGE

(PR)

20

0 to

1760

±2.00

0 to

1760

K (CA)

20

-270 to +1370

±1.00

-150 to +1370

E (CRC)

20

-270 to +1000

±1.00

-170 to +1000

J (IC)

20

-210 to +1200

±1.00

-180 to +1200

T (CC)

20

-270 to

+400

±1.00

-170 to

+400

B (RH)

20

0 to

1820

±2.00

400 to

1760

R

20

-50 to +1760

±2.00

200 to

1760

S

20

-50 to +1760

±2.00

0 to

1760

C (WRe 5-26)

20

0 to

2315

±2.00

0 to

2315

N

20

-270 to +1300

±1.00

-130 to +1300

U

20

-200 to

+600

±1.00

-200 to

+600

L

20

-200 to

+900

±1.00

-200 to

+900

P (Platinel II)

20

0 to

1395

±1.00

0 to

1395

INPUT RANGE

°F

MINIMUM SPAN

SETTING RANGE

ACCURACY

CONFORMANCE RANGE

(PR)

36

32 to

3200

±3.60

32 to

3200

K (CA)

36

-454 to +2498

±1.80

-238 to +2498

E (CRC)

36

-454 to +1832

±1.80

-274 to +1832

J (IC)

36

-346 to +2192

±1.80

-292 to +2192

T (CC)

36

-454 to

+752

±1.80

-274 to

+752

B (RH)

36

32 to

3308

±3.60

752 to

3200

R

36

-58 to +3200

±3.60

392 to

3200

S

36

-58 to +3200

±3.60

32 to

3200

C (WRe 5-26)

36

32 to

4199

±3.60

32 to

4199

N

36

-454 to +2372

±1.80

-202 to +2372

U

36

-328 to +1112

±1.80

-328 to +1112

L

36

-328 to +1652

±1.80

-328 to +1652

P (Platinel II)

36

32 to

2543

±1.80

32 to

2543

INPUT RANGE

K

MINIMUM SPAN

SETTING RANGE

ACCURACY

CONFORMANCE RANGE

(PR)

20

273.15 to 2033.15

±2.00

273.15 to 2033.15

K (CA)

20

3.15 to 1643.15

±1.00

123.15 to 1643.15

E (CRC)

20

3.15 to 1273.15

±1.00

103.15 to 1273.15

J (IC)

20

63.15 to 1473.15

±1.00

93.15 to 1473.15

T (CC)

20

3.15 to

673.15

±1.00

103.15 to

673.15

B (RH)

20

273.15 to 2093.15

±2.00

673.15 to 2033.15

R

20

223.15 to 2033.15

±2.00

473.15 to 2033.15

S

20

223.15 to 2033.15

±2.00

273.15 to 2033.15

C (WRe 5-26)

20

273.15 to 2588.15

±2.00

273.15 to 2588.15

N

20

3.15 to 1573.15

±1.00

143.15 to 1573.15

U

20

73.15 to

873.15

±1.00

73.15 to

873.15

L

20

73.15 to 1173.15

±1.00

73.15 to 1173.15

P (Platinel II)

20

273.15 to 1668.15

±1.00

273.15 to 1668.15