MODEL: M8XR3

M8XR3 SPECIFICATIONS

ES-5384 Rev.5 Page 3/5

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

HOW TO CALCULATE THE ACCURACY

■ Overall Accuracy

[Example] Pt 100, 0 – 700°C, 1 – 5 V output

Input Accuracy

= Max. Range ÷ Input Span × Input Accuracy

= 1050 ÷ 700 × 0.02

= 0.03

Output Accuracy

= Max. Range ÷ Output Span × Output Accuracy

= 20 ÷ 4 × 0.02

= 0.1

Overall Accuracy

= 0.03 + 0.1

= ±0.13 %

■ Accuracy with a User’s Temperature Table

Custom input accuracy + output accuracy

(Inversely proportional to the span)

Input Accuracy:

(a) Ω ÷ Input Span × 100 %

where (a) is 100mΩ or [Max. Range × 0.2 %], whichever is

greater.

The accuracy applies only at the user’s calibration points.

Data between each point is approximated with a linear line,

thus is not applicable.

Output Accuracy: ≤ ±0.04 %

[Example] 100 – 200 Ω input, 1 – 5 V output

(a) is the greater value among: 200 Ω × 0.2 % = 400 mΩ, or

100 mΩ, thus 400 mΩ is selected.

Input Accuracy = 400 mΩ ÷ 100 Ω × 100 = 0.4

Output Accuracy = 20 ÷ 4 × 0.04 = 0.2

Overall Accuracy = 0.4 + 0.2 = ±0.6 %

50

100

150

200

250

0

10

20

30

40

50

60

°C

Ω

Approximated Line

Data Point

Actual Line

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive

EN 50581