MODEL: W2XT
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
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