WPI Bridge-8, Instruction Manual

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2 World Precision Instruments
Each channel contains: a regulated DC power supply, 10V (+5 and –5V with respect
to signal ground) to provide DC power to transducers and a precision differential
amplifier with selectable voltage amplification and variable position adjustment
control. Each module includes a low pass filter with conditioner for strain gauges and
other transducers.
Unpacking
Upon receipt of this instrument, make a thorough inspection of the contents and
check for possible damage. Missing cartons or obvious damage to cartons should be
noted on the delivery receipt before signing. Concealed damage should be reported
at once to the carrier and an inspection requested. Please read the section entitled
“Claims and Returns” on page 15 of this manual. Please contact WPI Customer
Service if any parts are missing at 941.371.1003 or customerservice@wpiinc.com.
Returns: Do not return any goods to WPI without obtaining prior approval (RMA
# required) and instructions from WPI’s Returns Department. Goods returned
(unauthorized) by collect freight may be refused. If a return shipment is necessary,
use the original container, if possible. If the original container is not available, use a
suitable substitute that is rigid and of adequate size. Wrap the instrument in paper or
plastic surrounded with at least 100mm (four inches) of shock absorbing material. For
further details, please read the section entitled “Claims and Returns” on page 15 of
this manual.
Instrument Description
Single Channel Installation
1. Remove two screws on the right and left sides of the instrument enclosure,
respectively. Then remove eight screws on the bottom of the enclosure.
2. Slide the internal chassis out of the enclosure.
3. Remove the two screws holding the blank panel where the new channel is to be
installed.
4. Plug the connector of this channel into the new module and then secure the
channel in position with two screws.
5. Slide the chassis into the enclosure and reinstall all screws.
Operations
Transducers are connected to Bridge-8 via the 8-pin transducer input connector on
the front panel. Spare 8-pin DIN plugs are provided with each instrument to allow
you to rewire the cables of other manufacturers’ transducers to connect to Bridge-8
modules (Fig. 2).