|
|
|  DSH 251B
5 @! o( E, U+ b) P# p8 O1 `2 K8 ~) P, J5 e: z4 x! L; W
| Measurement accuracy
1 l1 y+ e+ Z% ~4 D2 ^" Z | N/A
. n( A, K9 ]+ p | Generality) H5 ^* _" {) b) _7 n' b- B3 I4 G
|
! m& G. q3 M( D+ j
Standard(s): Generality No. Year( K$ A$ m/ Z+ p, [7 H; w
DSH9 c6 g( f& M+ v0 I' O S8 h
251B
! U( j" M% O; G8 y* F2009
; k9 d% m# Z/ r" D2 z5 J# }( Q! OCategory: Various
1 N( d% t! J1 v( Y. B" c; gSubclause(s): ---
; e7 t/ Q5 n+ S+ q( ?4 e, a. ?Developed by:+ b6 n9 G5 c) h
WG4 – WG1
5 r: B0 b7 @$ V6 \8 YSubject: Measurement accuracy Key words:
' F; R; J% G! h! E# p- Measuring range
9 o/ v- V1 ~ T- Accuracy) V9 e ~; h+ @7 _3 Z1 B5 B
- Instrument/ v' m6 ?+ y2 O( u
Decision confirmed at the 46th5 n& [) k# g5 } |0 `5 \! o
CTL Plenary Meeting, in 2009
$ i r) e" u P2 a. OInstrument Accuracy Limits \2 @. F# p* g& Q" i7 F5 [
Measurement values stated in a CB Test Report shall be made with instruments with accuracies within
3 Z" X& e x6 J4 y1 @6 x$ |. Lthe limits stated below. These values apply unless more stringent requirements are given in the, J; F. |6 `! B! O$ ~
reference standard.+ @! Z' Q3 d+ O; I A5 ?* C' O
Parameter Range Instrument accuracy of
; C! Q7 h. U* @" g1 r) a- [" AMeasuring Range) ?# u# I5 F6 }/ _# L
Voltage3 `8 P6 a3 U0 R- \% ^& ]. ^
- Up to 1000 V up to 1 kHz ± 1,5%
. M3 o/ i! W$ r+ h! y1kHz up to 5 kHz ± 2%/ v e- r( N; Q
5 kHz up to 20 kHz ± 3%0 }2 C6 B8 y5 o% L9 I4 ^! j: @2 p
20 kHz and above ± 5%
m& b$ c# k' @# l( U& Q/ q- 1000 V and above dc up to 20 kHz ± 3%
) N, }* @* y4 p! o; r( r( X20 kHz and above ± 5%
8 m3 P* I" M6 pCurrent0 [/ [7 m2 j% _) V( T8 C! f9 L: a
Up to 5 A dc up to 60 Hz ± 1,5%
0 Z4 _. L9 t0 V+ c: i" z/ O60 Hz up to 5 kHz ± 2,5%
: ?! O* U$ O6 l) r$ J% r6 U4 I( s5 kHz up to 20 kHz ± 3,5%
, \& ]1 O& h( R. _8 E3 r20 kHz and above ± 5%1 G4 u; m- Y( i9 X/ m" w+ R
5 A and above dc up to 5 KHz ± 2,5%5 V0 |2 y& G# f" Z* U a
5 kHz up to 20 kHz ± 3,5%9 s% ^* A) d5 B* Z0 d- t: L
20 kHz and above ± 5%
# O: q. ~9 |! E. uLeakage current+ r. s) e- T; z: [- l
- up to 30 mA 50/60 Hz ± 3,5%' q. ?: T% W/ j* o2 u0 n: b7 a: |) \
- 30 mA and above 50 Hz - 5 kHz ± 5%9 {" |, ]& v @& ]9 R6 r9 h
Power (50/60 Hz) up to 1 W ± 3%
. E- C. u' l- k1 W up to 3 kW ± 3%/ D8 F, y" C" M% W
3 kW and above ± 5%
; X# ~* k" K& b' k0 {Power Factor (50/60 Hz) ± 0,050 I- C7 z: G }6 D! i1 _
Frequency up to 10 kHz ± 0,2%: f( B; ~6 m+ O- {) g, B
Resistance 1 m up to 100 m and above 1 M up to 1 T ± 5%) L+ m) y+ t( o& Q3 C6 M5 S0 I5 g$ v
above 1 T ± 10% ~- K% K1 I1 \( r5 G) r2 h3 S
for all other cases ± 3%- `: v' \4 l. i& c! F$ i: U5 z1 V
Parameter Range Instrument accuracy of
' y# Y3 ?0 c6 s, q+ l8 UMeasuring Range" H" v4 ]; w0 G! ]9 G; X' o
Temperature 1,2) R% t7 U& D3 G
below 100° C ± 2°C& j+ o$ f3 A0 u
100° C up to 500° C ± 3%& ] d4 S) H5 c# \, h9 Q- a F
- 35°C down to – 50°C ± 3°C
, _) u, r7 t$ P9 mTime 10 ms up to 200 ms ± 5%
* _' H1 V+ }9 D" D200 ms up to 1 s ± 10 ms3 o. z0 o- d* `2 X! q( u' j
1 s and above ± 1%1 V" f! M5 H$ W# w9 C
Linear dimensions up to 1 mm ± 0,05 mm( U/ f9 ~* F6 | r( R
1 mm up to 25 mm ± 0,1 mm& J" j9 y2 V5 r
25 mm and above ± 0,5%
7 C+ F% r2 }1 d& N' \1 U+ }Mass above 10 g and up to 100 g ± 1%6 @0 h+ ]4 X& l( H$ P
100 g up to 5 kg ± 2%
1 E) U x, h8 J- W4 S5 kg and above ± 5%. N$ Y: w1 e* x1 m
Force for all values ± 6%
+ s/ `% @$ T# }0 E# g0 GMechanical energy for all values ± 10%! F& l \0 ?7 R
Torque ± 10%8 u8 H1 @! e6 ~4 }
Angles ± 1 degree
: s+ \6 [2 J m8 {* Y% hRelative humidity 30% to 95% RH ± 6% RH
& Y/ d1 k3 }, |. n9 u! s! }Barometric air pressure ± 10 kPa
, B v+ G3 a: b, q; JGas & fluid pressure for static measurement ± 5%
3 S8 U( F2 @, B1 Thermocouple not included in the Instrument accuracy of measuring range. Thermocouples type “K”,2 R- `" t. x; ]8 c& a
“T” and “ J”, premium grade, are recommended.4 i0 C* s. _ `
2 Not for measurements related to relative humidity.+ v' `/ y0 S8 x6 z" c1 x; ~) p
" s. U$ N- {' y7 U- F' F
0 E9 V% r( ^. \' \4 d7 y! l5 D5 ^ |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-11-8 21:15
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
发表于 2019-11-17 15:44
