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CURS100 100 Ohm Current

 

Shunt Terminal Input Module

Revision: 2/13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C o p y r i g h t   ©   1 9 9 6 - 2 0 1 3

C a m p b e l l   S c i e n t i f i c ,   I n c .

Summary of Contents for CURS100

Page 1: ...CURS100 100 Ohm Current Shunt Terminal Input Module Revision 2 13 C o p y r i g h t 1 9 9 6 2 0 1 3 C a m p b e l l S c i e n t i f i c I n c...

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Page 3: ...emoving reinstalling and shipping defective products to Campbell Campbell will return such products by surface carrier prepaid within the continental United States of America To all other locations Ca...

Page 4: ...g container Campbell Scientific s shipping address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Clea...

Page 5: ...4 3 Four Wire Transducers 7 5 Sensor and Programming Example 8 5 1 Voltage Range 8 5 2 Calculating Multiplier and Offset An Example 8 5 3 CR1000 Program Example 9 5 4 CR9000 X Program Example 10 5 5...

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Page 7: ...a current signal for example 4 to 20 mA to a voltage that is measured by the datalogger The 100 ohm resistor used for the current shunt allows currents up to 25 mA to be read on a 2500 mV range CR10...

Page 8: ...The current transducer converts the sensor signal into a current signal The current output changes in a known way with the phenomenon being measured An advantage of current loop transducers over volt...

Page 9: ...ground terminal with a jumper wire FIGURE 3 1 Connecting the L terminal to the adjacent ground or G terminal on the CURS100 will result in unwanted return currents flowing into the datalogger signal g...

Page 10: ...rable offset errors in low level single ended measurements The G terminal on the CURS100 can be used to connect cable shields to ground NOTE 4 Transducer Wiring Current transducers differ mainly in ho...

Page 11: ...stream an alternative path for current flow is established through earth ground to the datalogger earth ground This path is in parallel with the path from the signal output through the resistor hence...

Page 12: ...m Battery 9 VDC 2 VDC Max FIGURE 4 3 2 wire supply voltage 4 2 Three Wire Transducers A three wire current loop transducer has the power supply connected directly to the transducer The voltage of the...

Page 13: ...wires for power input and ground and for signal output and ground The signal ground may or may not be internally tied to the power ground Some transducers have completely isolated outputs Datalogger...

Page 14: ...sistor V is equal to the resistance 100 ohms multiplied by the current I V 100 I The maximum voltage occurs at the maximum current Thus a 4 to 20 mA transducer will output its maximum voltage at 20 mA...

Page 15: ...mV psi psi 75 400 3125 0 200 400 3125 0 200 m multiplier slope 0 3125 and b the offset intercept 75 0 5 3 CR1000 Program Example CR1000 program example for sensor with 4 20mA output Assuming a flow me...

Page 16: ...y NextScan EndProg 5 4 CR9000 X Program Example VoltDiff Press_psi 1 mV5000 5 1 1 0 0 0 3125 75 5 5 CR10 X Program Example 1 Volt Diff P2 1 1 Reps 2 25 2500 mV 60 Hz Rejection Range 3 1 DIFF Channel 4...

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Page 18: ...ific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Sa...

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