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MANUAL NUMBER: 19175
MANUAL REVISION: B
Performance Limits
Output Voltage Limits
Certain ICP sensors are capable of 10-volt output voltage swing. Models 480C02 / 480E09 with 27 volt
supply will allow the positive-going side of the signal to go to +14 volts. The negative signal side is
capable of -8 volts assuming a 10 volt turn-on for the sensor. This must be taken into consideration or
resulting outputs may show signs of clipping.
Constant Current Limits
When using battery powered signal conditioners, battery life can be a concern. The current output of
model 480C02 / 480E09 is fixed at approximately 2.6 mA. This current will adequately handle high-
frequency signals in cables up to approximately 100 feet (31 meters) in length. Longer cables can be
driven but it sacrifices some high-frequency response. PCB line powered signal conditioners (482 Series
/ 483 Series) should be considered for cable lengths beyond 100 feet (31 meters) as they provide up to
20 mA of drive current.
Battery Considerations
Battery Test
Models 480C02 / 480E09 incorporate a momentary battery test position in the 3 position switch. When
the rocker switch is depressed to the right, the meter switched from the “XDCR” jack to the battery power
high-side. Normal circuit operation is not affected by this change and releasing the rocker returns the
meter to the transducer fault monitor function. It is recommended to confirm the status of batteries before
initiating a test. Replace batteries any time the pointer does not reach the BATT OK position or further
when the BATT Test switch is depressed. A slightly low reading will limit the usable output of most
sensors but will not cause damage to the model 480C02 or connected sensors.
Содержание R480E09
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