概述

The PR 6211 range of load cells is specially designed for weighing silos, tanks and process vessels. The unique design principle facilitates a particularly compact c*truction and, as a result, the unit can be used even in restricted *ce conditi*. The FlexLock installation kits counterbalance movements arising from mechanical or thermal expansion or co*action of the vessel or its supporting c*truction.

光栅式传感器利用光栅形成的莫尔条纹把角位移转换成光电信号（图2）。光栅有两块，一为固定光栅，另一为装在表盘轴上的移动光栅。加在承重台上的被测物通过传力杠杆系统使表盘轴旋转，带动移动光栅转动，使莫尔条纹也随之移动。利用光电管、转换电路和显示仪表，即可计算出移过的莫尔条纹数量，测出光栅转动角的大小，从而确定和读出被测物质量。

特性

30kg… 10t Type D1

500kg… 5t Type LT

1. Easy to install in limited *ce

2. Easy corner adjustment by matched D1 load cell outputs

3. Full stainless steel c*truction

4. Wide temperature range

5. Resistant against vibration

6. Hermetically sealed, IP 68 (depth of 1.5m for 10,000 hrs.), IP 69K

7. Ex-version available (500kg… 10t)

8. W&M approval (acc. OIML R 60)

9. Integrated overload protection for up to 300kg capacity

码盘式传感器 的码盘（符号板）是一块装在表盘轴上的透明玻璃，上面带有按一定编码方法编定的黑白相间的代码。加在承重台上的被测物通过传力杠杆使表盘轴旋转时，码盘也随之转过一定角度。光电池将透过码盘接受光信号并转换成电信号，然后由电路进行数字处理，在显示器上显示出代表被测质量的数字。光电式传感器曾主要用在机电结合秤上。

参数

Technical Data LT D1 D1

500kg… 5t 30… 300kg 500kg… 10t

Accuracy class 0,25 0,05 0,04 % 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. Tabelle s. Tabelle s. Tabelle

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

Max. load highest limit without irreversible effects EL - 500 - kg

without damage

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

Max. side load highest limit of static lo*the horizontal direction Elq 5 2 5 kN

它利用电容器振荡电路的振荡频率f与****板间距d 的正比例关系工作 。****板有两块，一块固定不动，另一块可移动。在承重台加载被测物时，板簧挠曲，两****板之间的距离发生变化，电路的振荡频率也随之变化。测出频率的变化即可求出承重台上被测物的质量。电容式传感器耗电量少，造价低，准确度为1/200～1/500。

Min. LC verification minimum load cell verification interval,

interval vmin = Emax/Y Y - 3,333 5,000

Emax = 30kg Y - 2,500 -

Rated output relative output at nominal load Cn 2.0 2.0 2.0 mV/V

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

Zero output signal load cell output signal under unloaded condition Smin < 0… 2 < 0… 2 < 0… 2 % Cn

Repeatability error max. change in load cell output for repeated lo*g εR < 0.1 < 0.01 < 0.01 % Cn

Creep, durin*0 min. max. change in load cell output under nominal load dcr < 0.1 < 0.03 < 0.035 % Cn

Non-Linearity max. deviation from best straight line through zero dLin < 0.25 < 0.05 < 0.03 % Cn

Hysteresi*ax. difference in load cell output when lo*g from dhy < 0.25 < 0.05 < 0.04 % Cn

zero to nominal load and unlo*g back to zero

Temperature max. change of Smin/10K DT over BT referred to Cn TKSmin < 0.1 < 0.042 < 0.028 % Cn/10K

1、敏感元件

直接感受被测量(质量)并输出与被测量有确定关系的其他量的元件。如电阻应变式称重传感器的弹性体，是将被测物体的质量转变为形变;电容式称重传感器的弹性体将被测的质量转变为位移。

2、变换元件

又称传感元件，是将敏感元件的输出转变为便于测量的信号。如电阻应变式称重传感器的电阻应变计(或称电阻应变片)，将弹性体的形变转换为电阻量的变化;电容式称重传感器的电容器，将弹性体的位移转变为电容量的变化。有时某些元件兼有敏感元件和变换元件两者的职能。如电压式称重传感器的压电材料，在外载荷的作用下，在发生变形的同时输出电量。

3、测量元件

将变换元件的输出变换为电信号，为进一步传输、处理、显示、记录或控制提供方便。如电阻应变式称重传感器中的电桥电路，压电式称重传感器的电荷前置放大器。

4、辅助电源

为传感器的电信号输出提供能量。一般称重传感器均需外链电源才能工作。因此，作为一个产品必须标明供电的要求，但不作为称重传感器的组成部分。有些传感器，如磁电式速度传感器，由于他输出的能量较大，故不需要辅助电源也能正常工作。所以并非所有传感器都要有辅助电源。

订货型号

Type Nominal Load Emax Version Packing Weight gross/net

(2mV/V)

PR6211/31.. 30kg /..D1 240 x 175 x 80mm 0,31kg/0,14kg

PR6211/51.. 50kg /..D1 240 x 175 x 80mm 0,31kg/0,14kg

PR6211/12.. 100kg /..D1 240 x 175 x 80mm 0,31kg/0,14kg

PR6211/22.. 200kg /..D1 240 x 175 x 80mm 0,31kg/0,14kg

PR6211/32.. 300kg /..D1 240 x 175 x 80mm 0,31kg/0,14kg

PR6211/52 500kg ../..LT /..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

PR6211/13.. 1t /..LT/..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

PR6211/23.. 2t /..LT/..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

PR6211/33.. 3t /..LT/..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

PR6211/53.. 5t /..LT/..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

PR6211/14.. 10t /..D1/..D1E 250 x 230 x 60mm 1,3kg/1,0kg

配件

Type Description Dimensi* Order number

PR6130/08 Plastic cable for all industrial applicati*, max. 8 load cells 250 x 180 x 90mm 9405 361 30081

junction box

PR6130/04 Cable junction box Aluminium, grey painted, IP 68, for all industrial 175 x 80 x 57mm 9405 361 30041

applicati*, max. 4 load cells

PR6130/64 Stainless steel material stainless steel 1.4301, IP 68, IP 69K, 195 x 114 x 59mm 9405 361 30642

cable junction box for all industrial, i*insically safe and W&M applicati*,

max. 4 load cells

PR6130/68 Stainless steel material stainless steel 1.4404, IP 68, 200 x 160 x 60mm 9405 361 21682

cable junction box for all industrial, applicati*, max. 8 load cells

PR6135 Extension cable for all applicati* D = 9mm 9405 361 35. . 2

PR6135/..A Extension cable, armoured for all applicati*, grey D = 13mm 9405 361 35. . 9

PR6136 Extension cable for i*insically safe applicati*, blue D = 11mm 9405 361 36. . 2

PR6136/..A Extension cable, armoured for i*insically safe applicati*, blue D = 13mm 9405 361 36. . 9

PR6011/10N Mounting kit steel plates to mount all 9405 360 11101

PR 6211 / 500kg… 10t nominal load

PR6011/10S Stainless steel mounting kit stainless steel version of PR 6011/10N 9405 360 11102

PR6011/30N MiniFlexlock mounting kit for PR 6211 500kg… 10t 9405 360 11301

with built in c*trainer up to 5kN horizontal forces

PR6011/30S Stainless steel MiniFlexlock stainless steel version of PR 6011/30N 9405 360 11302

PR6011/40N Sei*oFlex mounting kit for 6211 500kg… 10t with built in 9405 360 11401

c*trainer up to 20 kN side forces and lift-off-protection

PR6011/40S Stainless steel Sei*oFlex stainless steel version of PR 6011/40N 9405 360 11402

PR6011/11N Mounting kit mounting plate for all load cells PR6211/500kg to 10t 9405 360 11111

nominal load, Material 1.4301

PR6011/11S Mounting kit mounting plate for all load cells PR6211/500kg to 10t 9405 360 11112

Stainless steel nominal load, material 1.4301

PR6011/00N Mounting kit steel plate kit to mount PR 6211 30k*00kg 9405 360 11001

PR6011/00S Stainless steel mounting kit stainless steel version of PR 6011/00N 9405 360 11002

PR6011/03 Ru*er mounting kit vibration absorbe*u*er with steel plates for 9405 360 11031

mounting on PR 6011/00N and PR 6011/20N

PR6011/20N MiniFlexlock mounting kit for PR 6211 30 k*00kg with build in 9405 360 11201

c*trainer up to 450N horizontal forces

PR6011/20S Stainless steel MiniFlexlock stainless steel version of PR 6011/20N 9405 360 11202