MODEL: W2XT

W2XT SPECIFICATIONS

ES-5508 Rev.6 Page 3/5

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

±5.4°F at 77 ±18°F

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

Response time: ≤ 1 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: 2000 V AC @1 minute (input to output

1 to output 2 to power to ground)

CALCULATION EXAMPLES OF OVERALL ACCURACY

[Example] K thermocouple, 0 – 1000°C, 4 – 20 mA DC

output

Absolute value accuracy (Table 1): 0.25°C

CJC error (3°C) added: 3.25°C

• Input accuracy = 3.25°C ÷ 1000°C × 100 = 0.325 %

Output span: 16 mA (20 – 4)

• Output accuracy = 20 mA ÷ 16 mA × 0.04 = 0.05 %

Overall accucracy including CJC error = 0.325 + 0.05 =

±0.38 % of span

Table 1.

(PR)

K (CA)

E (CRC)

J (IC)

T (CC)

B (RH)

R

S

C (WRe 5-26)

N

U

L

P (Platinel

Ⅱ)

0 to 1760

-270 to +1370

-270 to +1000

-210 to +1200

-270 to +400

100 to 1820

-50 to +1760

-50 to +1760

0 to 2315

-270 to +1300

-200 to +600

-200 to +900

0 to 1395

±1.00

±0.25

±0.20

±0.25

±0.25

±0.75

±0.50

±0.50

±0.80

±0.30

±0.20

±0.25

±0.25

20

20

20

20

20

20

20

20

20

20

20

20

20

0 to 1760

-150 to +1370

-170 to +1000

-180 to +1200

-170 to +400

400 to 1760

200 to 1760

0 to 1760

0 to 2315

-130 to +1300

-200 to +600

-200 to +900

0 to 1395

THERMO-

COUPLE

MAXIMUM

RANGE

CONFORMANCE

RANGE

ACCURACY

℃

(PR)

K (CA)

E (CRC)

J (IC)

T (CC)

B (RH)

R

S

C (WRe 5-26)

N

U

L

P (Platinel

Ⅱ)

32 to 3200

-454 to +2498

-454 to +1832

-346 to +2192

-454 to +752

212 to 3308

-58 to +3200

-58 to +3200

32 to 4199

-454 to +2372

-328 to +1112

-328 to +1652

32 to 2543

±1.80

±0.45

±0.36

±0.45

±0.45

±1.35

±0.90

±0.90

±1.44

±0.54

±0.36

±0.45

±0.45

36

36

36

36

36

36

36

36

36

36

36

36

36

32 to 3200

-238 to +2498

-274 to +1832

-292 to +2192

-274 to +752

752 to 3200

392 to 3200

32 to 3200

32 to 4199

-202 to +2372

-328 to +1112

-328 to +1652

32 to 2543

MAXIMUM

RANGE

ACCURACY

°F

THERMO-

COUPLE

MIN.

SPAN

MIN.

SPAN

CONFORMANCE

RANGE