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|  DSH 251B
& ~- U6 m1 }" J& W3 C: `2 ?' g0 b
| Measurement accuracy* e( I' o7 t K# t
| N/A. `8 k+ Y0 V, x) y) n
| Generality1 T6 V3 J2 H/ K+ ^6 T5 I# |
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2 @8 F0 s* B+ @ ZStandard(s): Generality No. Year& L7 A7 W; J# K% h2 J
DSH
& T3 S% k$ T0 B3 v/ ^251B
$ I" y' X0 Y5 P20097 O3 C$ N; S) v6 f; y6 L
Category: Various! Y* ?4 Y. a' p/ z
Subclause(s): ---
. L6 o, _7 i# ?1 l2 GDeveloped by:
+ T6 R) H$ R/ K, F0 ?$ ~/ [. [WG4 – WG1
" [# c c6 ^/ t7 L9 E1 Q, ^Subject: Measurement accuracy Key words:8 ?( D' u: O1 G( ~2 t- t% c
- Measuring range; d6 G# N/ {- H
- Accuracy' Z2 y* p* |, e/ x' L: m2 K
- Instrument$ u; @ c% x5 Z0 g5 s& b0 ^
Decision confirmed at the 46th
, m! a- w/ \! Z$ rCTL Plenary Meeting, in 2009' [* C# `0 o; ?: A* V3 R* E' U
Instrument Accuracy Limits
2 `/ o- v7 P) y6 OMeasurement values stated in a CB Test Report shall be made with instruments with accuracies within+ ~) @4 g+ H* t( r9 H7 {$ T
the limits stated below. These values apply unless more stringent requirements are given in the
4 g7 Z3 z7 s. K8 c/ U, O# q7 [reference standard.4 u6 X/ k/ f8 {8 i
Parameter Range Instrument accuracy of4 I" X. J3 M# x. | B
Measuring Range
, h, a, h( F) n+ a$ \+ x5 CVoltage
9 c9 g% {9 B8 _) s4 G- Up to 1000 V up to 1 kHz ± 1,5%
3 l+ a4 Y# {5 ?( \) y [' \7 ~1kHz up to 5 kHz ± 2%+ V$ F/ Q, |2 p0 ?7 ]8 S
5 kHz up to 20 kHz ± 3%' Y" c& V+ {3 y c9 k2 r' w J/ g
20 kHz and above ± 5%2 B; p& R+ d- b0 L
- 1000 V and above dc up to 20 kHz ± 3%
& c3 ]7 x* ?7 o7 {" L20 kHz and above ± 5%0 Y5 e4 B7 l( E, [. W( i7 ^6 u
Current
. w4 ?# z0 q: i1 W9 F6 {5 [! @Up to 5 A dc up to 60 Hz ± 1,5%/ ^4 |( R( P$ `5 `' c0 s4 @4 E
60 Hz up to 5 kHz ± 2,5%
1 \" n8 W4 a4 R$ K0 D5 kHz up to 20 kHz ± 3,5%) T$ {& L+ y& V1 R: r! n% Z
20 kHz and above ± 5%
8 x6 u! ?$ @ z1 N4 Q \, p) L1 k5 A and above dc up to 5 KHz ± 2,5%
( g: q1 U& R0 M8 o5 kHz up to 20 kHz ± 3,5%. [( ]! d! p! V e3 ^
20 kHz and above ± 5%
9 j3 K! o2 T+ BLeakage current
6 G9 x6 T2 D0 p8 o* d" u- up to 30 mA 50/60 Hz ± 3,5%/ d! W* _# Z) S9 o! {/ W* c2 M
- 30 mA and above 50 Hz - 5 kHz ± 5%" {6 r0 y- `& b' u# x( S% O
Power (50/60 Hz) up to 1 W ± 3%
; B) G$ Q" ^% V1 W up to 3 kW ± 3%
7 q" r0 ?, { \3 kW and above ± 5%# [5 t9 M1 E& ^# \$ D+ y
Power Factor (50/60 Hz) ± 0,05* Z+ m g; T5 O% v
Frequency up to 10 kHz ± 0,2%! ~. U! @- U2 e6 t% }) j! m
Resistance 1 m up to 100 m and above 1 M up to 1 T ± 5%. t- _" |: Y1 z2 o# p3 b# b+ B. J
above 1 T ± 10%
F3 `/ h/ w0 K( c9 p* E0 q' b- Rfor all other cases ± 3%5 P' F7 p; C5 X* Z& O6 A5 v8 M. l
Parameter Range Instrument accuracy of
9 a, s$ c' h. t3 U8 ?2 u: P, FMeasuring Range
) n; h/ @, s$ x1 t" ATemperature 1,2. L$ ^& F( N0 J4 q) T+ j
below 100° C ± 2°C
( U0 `% r9 n8 J2 M. b100° C up to 500° C ± 3%2 S- j& D0 G% m: A% `- R5 [
- 35°C down to – 50°C ± 3°C1 G! P) `! s9 u1 y, U4 U
Time 10 ms up to 200 ms ± 5%
6 f3 z; B/ j7 y8 |3 u2 ?7 k( I: K! k200 ms up to 1 s ± 10 ms
! `3 {% I3 r8 e3 \6 `4 _2 c+ _1 s and above ± 1%
5 w3 c4 x$ K4 l! @Linear dimensions up to 1 mm ± 0,05 mm3 b& Z- ?1 z7 v% `4 M
1 mm up to 25 mm ± 0,1 mm
6 m0 B+ k! [* B& A: w25 mm and above ± 0,5%- g w8 r0 B* C d7 s1 g% \& l7 z
Mass above 10 g and up to 100 g ± 1%
$ z% ?& H) @& s2 w8 i100 g up to 5 kg ± 2%$ w4 O/ ~* L# W0 M4 Q1 S+ f
5 kg and above ± 5%
+ j2 x" j9 _. U" x7 hForce for all values ± 6%! t$ D9 } M% m
Mechanical energy for all values ± 10%0 l% n+ j1 Q* o/ Y2 j
Torque ± 10%' _ \" D) r! u7 ?* w
Angles ± 1 degree& `' n! F4 ?- A
Relative humidity 30% to 95% RH ± 6% RH* |! p% f5 U# V& P
Barometric air pressure ± 10 kPa6 D' Y: T/ d; D, y) t
Gas & fluid pressure for static measurement ± 5%) ~- |/ ~: |' i R3 h
1 Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”,
+ M! g8 j7 K: C6 z“T” and “ J”, premium grade, are recommended.
% \- X7 S! @- A2 h U2 n2 Not for measurements related to relative humidity.
: a+ l3 u! t1 P2 D
0 F' V2 {3 h7 o; E. c$ F6 g4 ~% |, T, X. @4 \
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