特性

100kg… 5t, Typ D1/C3/C6

1. Easy to install

2. Easy corner adjustment by matched load cell outputs

3. Full stainless steel construction

4. Wide temperature range

5. Resistant against vibration

6. Hermetically sealed, IP 68 (depth of 1.5m for 10,000 hrs.)

7. Ex-version available

8. W&M approval (According to OIML R60)

舊國標將應用對象和使用環(huán)境條件*不同的“稱重”和“測力”兩種傳感器合二為一來考慮，對試驗和評價方法未給予區(qū)分。舊國標共有21項指標，均在常溫下進行試驗；并用非線性、滯后誤差、重復性誤差、蠕變、零點溫度附加誤差以及額定輸出溫度附加誤差6項指標中的zui大誤差，來確定稱重傳感器準確度等級，分別用0.02、0.03、0.05表示。

參數(shù)

Technical Data D1 C3 C6

Accuracy class 0.04 0.015 0.008% Emax

Minimum dead load lowest limit of specified measuring range Emin 0 0 0 % Emax

Maximum capacity highest limit of specified measuring range Emax s.table s.table s.table

Max. usable load upper limit for measurements Eu 150 150 150 % Emax

Destructive load danger of mechanical destruction Ed > 300 > 300 > 300 % Emax

Min. LC verification interval minimum load cell verification interval, Y 5,000 14,000 20,000

(vmin=Emax/Y)

Rated output relative output at nominal load Cn 2 2 2 mV/V

Tolerance on rated output permissible deviation from rated output dc < 0.25 < 0.07 < 0.07 % Cn

Zero output signal load cell output signal under unloaded condition Smin < 1.0 < 1.0 < 1.0 % Cn

Repeatability error max. change in load cell output εR < 0.01 < 0.005 < 0.005 % Cn

for repeated loading

Creep, during 30 min. max. change in load cell output dcr < 0.03 < 0.015 < 0.008% Cn

under nominal load

Non - Linearity max. deviation from best dLin < 0.03 < 0.01 < 0.01 % Cn

straight line through zero

Hysteresis max. difference in load cell output when loading dhy < 0.04 < 0.015 < 0.008% Cn

from zero to nominal load and unloading

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光柵式傳感器利用光柵形成的莫爾條紋把角位移轉(zhuǎn)換成光電信號（圖2）。光柵有兩塊，一為固定光柵，另一為裝在表盤軸上的移動光柵。加在承重臺上的被測物通過傳力杠桿系統(tǒng)使表盤軸旋轉(zhuǎn)，帶動移動光柵轉(zhuǎn)動，使莫爾條紋也隨之移動。利用光電管、轉(zhuǎn)換電路和顯示儀表，即可計算出移過的莫爾條紋數(shù)量，測出光柵轉(zhuǎn)動角的大小，從而確定和讀出被測物質(zhì)量。