3.0 Setting Up (cont.)
3.0 Setting Up (cont.)
17
Manual Part No. 0653 0003 0000 Rev B
Step 3 - Setting bi-polar (±) full scale output
1 Move the transducer core to the position where maximum LVC output is required
2 If the output polarity is wrong, reverse the transducer primary connections (terminals 3 & 4). Move the transducer core back and
re-check the zero position
3 Move the coarse gain link along from position 1 towards position 6 until the LVC output is near the required value
4 Adjust the
SPAN
control to give the required output
5 The bi-polar output is now set. Proceed to step 5
If a uni-polar output is required proceed to step 4.
Example: ±10 V is required from a ±1 mm transducer. Set the transducer core at the +1 mm position and set the output to +10 V.
Step 4 - Setting uni-polar full scale output (adding an offset)
1 Move the transducer core to the null position. LVC output will be 0 V or 0 mA
2 Apply offset using the +VE, -VE, 5 V and 10 V links and adjust the
ZERO
control to set precisely. Both links may be used to give
greater offset shift. Proceed to step 5
Example: 0-10 V is required for a ±1 mm transducer. Set the transducer core to give ±5 V over the full range and then, with the
transducer core at null, add +5 V offset. Adjust the
ZERO
to give 5 V. When the transducer core is moved to the +1 mm position,
the output will be +10 V.
Example: 4-20 mA is required for a ±1 mm transducer. Set the transducer to give ±8 mA over range and then, with the transducer at
null, add +5 V (
≈
10 mA) offset. Adjust the
ZERO
to give +12 mA. When the transducer core is moved to the +1 mm position, the
output will be +20 mA.
Step 5 - Final checks
Ensure that calibration is correct by moving the transducer core through the required mechanical range (including the mid position)
and checking the calibration points. Fine adjustments can be made if required.
It may only be possible to set the output accurately at the two calibration points. This is due to non-linearity within the transducer.
Summary of Contents for LVC-2500
Page 1: ...User Manual LVC 2500 Low Voltage Conditioner Manual Part No 0653 0003 0000 Rev B...
Page 13: ...2 0 Installation cont 2 0 Installation cont 12 Manual Part No 0653 0003 0000 Rev B...
Page 14: ...2 0 Installation cont 2 0 Installation cont 13 Manual Part No 0653 0003 0000 Rev B...
Page 22: ...6 0 Application 6 0 Application 21 Manual Part No 0653 0003 0000 Rev B 6 1 Application example...
