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|  DSH 251B4 A+ \! b& \4 K5 a
( d0 H# I' x- ` q; v4 q4 `
| Measurement accuracy* B( h& m8 a; m( i* w$ P6 {
| N/A5 \/ G* J2 ?4 f
| Generality, i; \" T- G# L. d& E, v
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0 d. `* G o2 I
Standard(s): Generality No. Year2 K. U3 x6 f- f0 ]! Q4 N
DSH
, |+ v, U7 w4 Q- A+ H8 i: V" A251B J7 e+ y9 A! o) e
2009
! h# n* b" P7 U- B: cCategory: Various
4 k( w5 L) I; e# |' z% {: fSubclause(s): ---- a1 ~5 O& V" I b& h& O
Developed by:+ P8 Y J* T! z1 v. f
WG4 – WG1
) u; w) }6 R% e, e3 I0 D% k" P: aSubject: Measurement accuracy Key words:5 p5 \: o+ l/ I9 M" ]& l
- Measuring range
8 M+ C% ?! ~4 [, C) m. o- Accuracy
/ ]8 a, F, `- J7 S% j- Instrument
, O1 o1 i% H; @: @Decision confirmed at the 46th
* [9 y2 z) D6 ?1 ~& q& v8 G5 [CTL Plenary Meeting, in 2009
# ? i7 x2 U" R$ O/ N$ |- sInstrument Accuracy Limits; W' P' S$ r' V
Measurement values stated in a CB Test Report shall be made with instruments with accuracies within+ X _5 M: z2 ]3 F
the limits stated below. These values apply unless more stringent requirements are given in the4 ^$ l e8 C5 z, g% {6 ~, A
reference standard.
3 ? i" r4 N% }5 R, J9 iParameter Range Instrument accuracy of
' l6 r/ a1 } S: m6 u( H8 EMeasuring Range" x; T6 p" q2 b3 d {
Voltage
% y' V8 e0 e& q- Up to 1000 V up to 1 kHz ± 1,5%* y2 ]- ?' M5 d, Q8 [' K
1kHz up to 5 kHz ± 2%
K' L: l& t3 V5 kHz up to 20 kHz ± 3%
+ @& P4 U) ~. }" r! |6 s20 kHz and above ± 5%4 f: }/ y4 k( Z* Y$ r# M* d5 ]
- 1000 V and above dc up to 20 kHz ± 3%5 w0 `) e6 J7 Q, N0 S+ ~8 K2 c/ }
20 kHz and above ± 5%
# m n6 i' O: a: q5 z. Q5 uCurrent
4 t) t9 e: G C2 A) kUp to 5 A dc up to 60 Hz ± 1,5%- `$ `* Q1 J0 O
60 Hz up to 5 kHz ± 2,5%. I3 W, {' f) o' J- L$ Y2 Y! p, K
5 kHz up to 20 kHz ± 3,5%/ H7 k) Q5 e) F# X& ]
20 kHz and above ± 5%
$ Q6 j1 n& x9 R4 Q7 k5 A and above dc up to 5 KHz ± 2,5%
: T0 _- R( j6 z0 }& x) o5 kHz up to 20 kHz ± 3,5%
+ D X1 `) B3 \5 u% ^3 |20 kHz and above ± 5%
0 L# l# G- X/ D1 x- d; H) U; S; |3 ~" o1 \Leakage current
! j. T5 z% M; k# k1 a( V- up to 30 mA 50/60 Hz ± 3,5%/ D: ~. d' H) }: f: d
- 30 mA and above 50 Hz - 5 kHz ± 5%& p* b; O% t% R
Power (50/60 Hz) up to 1 W ± 3%- j6 \8 B1 K, {9 i7 v
1 W up to 3 kW ± 3%
( r1 i% C, z- @$ I @$ |7 ~3 kW and above ± 5%
! k9 e+ D% H! S0 t) U* y/ APower Factor (50/60 Hz) ± 0,05# R/ o3 ^. Q5 n
Frequency up to 10 kHz ± 0,2%
0 j2 d) k% q- eResistance 1 m up to 100 m and above 1 M up to 1 T ± 5%
9 ~0 `0 x! j9 {4 S8 o8 a* Pabove 1 T ± 10%
, J) Y, V7 H* i6 d9 ]! N( Xfor all other cases ± 3%
% B6 | U- N9 h; N+ s. {; \" ]Parameter Range Instrument accuracy of
9 Z/ u7 p9 v2 c- X" T& d- wMeasuring Range* g$ G% s8 x/ m9 }
Temperature 1,2
: r' R n7 s1 |% |below 100° C ± 2°C* ^) H! H$ B. A+ B4 J# } p
100° C up to 500° C ± 3%2 {: L5 |7 f0 I3 o# w, T/ n' {
- 35°C down to – 50°C ± 3°C% i' Y' K" a* v7 E
Time 10 ms up to 200 ms ± 5%+ i/ p' M3 ?( u
200 ms up to 1 s ± 10 ms' K0 r+ X, ^5 Y+ O6 ~
1 s and above ± 1%& A) {* C2 u( W {- i; i A
Linear dimensions up to 1 mm ± 0,05 mm
4 ^5 b! c' k: U+ ^1 mm up to 25 mm ± 0,1 mm
- P3 q4 b% y0 t% U5 o25 mm and above ± 0,5%
6 j* u' W* d7 i5 [% ^9 @: m' KMass above 10 g and up to 100 g ± 1%8 S7 z2 G9 A4 _* }) S0 f' @/ Q
100 g up to 5 kg ± 2%: z1 a- P) D% ~4 B
5 kg and above ± 5%
; ]2 x0 Y0 Y4 E0 K/ HForce for all values ± 6%, b/ O( l! r" s& O: Z3 Y
Mechanical energy for all values ± 10%
$ Q) ^/ H8 S3 {% z* o2 O |Torque ± 10%
L7 j+ r; z: c3 |& i$ eAngles ± 1 degree& a2 f4 ^6 [- d$ b3 W
Relative humidity 30% to 95% RH ± 6% RH
E8 H) r' i" f4 j4 zBarometric air pressure ± 10 kPa: I7 n3 f8 e" Y- u+ y# Q+ l
Gas & fluid pressure for static measurement ± 5%
! T% A" _/ a$ D6 L) ~% Q' [$ ?1 Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”,8 U/ G6 m e. J ^
“T” and “ J”, premium grade, are recommended.
0 u- }; w2 @6 E3 C3 p2 A, N' b2 Not for measurements related to relative humidity.
& d/ v# D+ Y$ g4 ?0 o/ m# O/ Z" k4 z
5 n6 F: R& M, P1 A- D
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