Campbell 4WPB100 Скачать руководство пользователя страница 8

4WPB100, 4WPB1K PRT Bridge Terminal Input Modules 

650 329.51 

753 

1507 

700 345.13 

720 

1441 

750 360.47 

691 

1382 

800 375.51 

664 

1328 

850 390.26 

640 

1280 

 

 

TABLE 4-2.  Excitation Voltage for 1000 Ohm PRT in 

4WPB1000 Based on Maximum Temperature and Input Voltage 

Range 

 

 

Excitation Voltage, mV 

 

Max. 

Temp. 

°

 

PRT 

Resist. 

Ohms 

 

±200 mV Input 

Range 

CR9000X 

±250 mV Input 

Range CR10(X),

CR1000, CR800, 

CR850 

 

±500 mV Input 

Range 21X, 

CR7, CR3000 

50 1194.  1959 

2448 

4897 

100 1385.  1716 

2145 

4291 

150 1573.1  1535 

1919 

3837 

200 1758.4  1394 

1743 

3486 

250 1940.7  1282 

1603 

3205 

300 2120.2  1190 

1488 

2976 

350 2296.7  1114 

1393 

2786 

400 2470.4  1050 

1313 

2625 

450 2641.1  995 

1244 

2488 

500 2809. 

948 

1184 

2369 

550 2973.9  906 

1133 

2265 

600 3135.9  870 

1087 

2174 

650 3295.1  837 

1047 

2093 

700 3451.3  808 

1011 

2021 

750 3604.7  783 

978 

1956 

800 3755.1  759 

949 

1898 

850 3902.6  738 

923 

1845 

 

Содержание 4WPB100

Страница 1: ...4WPB100 4WPB1K PRT Bridge Terminal Input Modules Revision 12 06 C o p y r i g h t 1 9 9 6 2 0 0 6 C a m p b e l l S c i e n t i f i c I n c H L A G H L A G H L G...

Страница 2: ...ieu of all other warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or co...

Страница 3: ...4 CR9000X 6 4 5 CR1000 7 5 PRT in 4 Wire Half Bridge 7 5 1 Excitation Voltage 8 5 2 Calibrating a PRT 8 Figures 1 1 Terminal Input Module 1 2 1 Circuit Schematic 2 3 1 Wiring for Example Programs 2 T...

Страница 4: ...This is a blank page...

Страница 5: ...t shunts The 4WPB100 and 4WPB1K are used to provide completion resistors for 4 wire half bridge measurements of 100 Ohm and 1 killohm Platinum Resistance Thermometer PRT respectively H L A G H L A G H...

Страница 6: ...4 wire half bridge measurements the 4WPB is connected to a differential channel and the sense leads from the PRT to the next differential channel The black excitation wire is connected to the excitati...

Страница 7: ...ot set to the maximum input range it becomes a four wire half bridge measurement All the examples are for a 100 Ohm PRT in the 4WPB100 The excitation voltages used were chosen with the assumption that...

Страница 8: ...put Range CR9000X 250 mV Input Range CR10 X CR1000 CR800 CR850 500 mV Input Range 21X CR7 CR3000 50 1194 1959 2448 4897 100 1385 1716 2145 4291 150 1573 1 1535 1919 3837 200 1758 4 1394 1743 3486 250...

Страница 9: ...mV Excitation 7 1 Loc Rs_Ro 8 1 0 Mult 9 0 Offset 02 Temperature RTD P16 1 1 Reps 2 1 R Ro Loc Rs_Ro 3 2 Loc Temp_C 4 1 Mult 5 0 Offset 4 2 21X 1 Full Bridge w mv Excit P9 1 1 Reps 2 3 50 mV Slow Ex...

Страница 10: ...Excitation 10 1 Loc Rs_Ro 11 1 0 Mult 12 0 0 Offset 2 Temperature RTD P16 1 1 Reps 2 1 R RO Loc Rs_Ro 3 2 Loc Temp_C 4 1 0 Mult 5 0 0 Offset 4 4 CR9000X CR9000X Datalogger Public Rs_Ro Temp_F DataTab...

Страница 11: ...and a separate set of sense wires that allow the voltage across the PRT to be measured without the effect of any voltage drop in the excitation leads Figure 2 1 shows the circuit used to measure the...

Страница 12: ...PRT is equal to the current I multiplied by the resistance of the PRT Rs and is greatest when Rs is greatest For example if it is desired to measure a temperature in the range of 10 to 40 C the maxim...

Страница 13: ...o perform the calibration connect the PRT to the datalogger and program the datalogger to measure the PRT with the 4 wire half bridge as shown in the example section multiplier 1 Place the PRT in an i...

Страница 14: ...4WPB100 4WPB1K PRT Bridge Terminal Input Modules 10 This is a blank page...

Страница 15: ...This is a blank page...

Страница 16: ...campbellsci com br suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientif...

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