Cooper Instruments & Systems DFI 1650 Multi-Channel Digital Force Indicator - Manual (Page 10)

CF 66 4 Rev. C 2/05
additional “multiple-point calibration” can be purchased with the transducer that allows linearity correction
information to be placed into its Signature Calibration module.
2.0 GETTING STARTED QUICKLY
2.1 Locate Required Parts and Information
The following items are required to set up a DFI instrument with your transducer:
• DFI instrument
• Transducers that are to be connected to the instrument
• For each transducer to be connected to the instrument, a connecting cable. This cable will have a 12-pin,
green, plastic connector on one end and the transducer’s mating connector on the other end. Usually, this
cable is ordered along with the instrument and transducer. If the connecting cable was not ordered from
Cooper you may need to make this cable.
• The transducer’s Certificate of Calibration.
• The System Calibration Sheet that shipped with your instrument. This sheet describes which cards are
installed in each channel.
• Power cord for instrument.
2.2 Connect the Transducer to the Correct Channel of the Instrument
For each transducer, attach its connecting cable to the transducer, and then to the correct 12-pin channel-
connector on the instrument.
The System Calibration sheet indicates which serial numbered transducer is to be connected to each channel of
the instrument.
If the instrument and transducer(s) were not purchased with a connecting cable from Cooper, you may need to
make this cable. For the transducer’s pin connections, see that transducer’s calibration record. For the pin
connections for that channel of the instrument, see the appropriate chapter in this manual. For example, if you wish
to wire to a Strain-Gage Input Channel see the chapter “Strain-Gage Input Channel”.
2.3 Turn on the Instrument
Connect the power cord between the instrument power source and the instrument, and turn the On/Off switch on
the back of the instrument to the On position.
The instrument enters its INITIALIZE mode that lasts a few seconds per channel. As each channel in the
instrument is initialized, the transducer’s serial number may be seen on the display if the transducer has a
Signature Calibration Module in it.
If the channel’s display flashes “apply 00000.” (or some other load value), the instrument has detected a transducer
other than the one which was last calibrated with that channel. The instrument is prompting you to apply the
requested load to the transducer so that a “mV/V Calibration” or a “Shunt Calibration” can take place. After making
certain that the correct transducer is connected this channel, press the [ENTER] button after you have applied the
requested load to perform the calibration.
If the instrument displays error code 57 or 68, it has detected a transducer other than the one that was last
calibrated with that channel. Furthermore, the channel cannot perform an automatic calibration because its
calibration type has been set to “Known Load Calibration”. Either re-connect the correct transducer to the channel,
or see “CALIBRATION TYPE Menu Item” to select another calibration type.
When the instrument enters its normal operating mode (RUN mode), you will see the following format on the front
panel display:
1▲ 00000. PSIG ◊
where:
• Channel number: “1” is the channel number