1.0 INTRODUCTION
The DFI 9000 Portable Indicator is a battery-powered signal conditioner and readout device. The DFI provides
precise electrical drive to a transducer and converts the transducer output into a digital of engineering units.
The signal conditioner supports transducer outputs between 1 and 4 millivolts/volt (mV/V); a high input option
supports outputs up to 40 mV/V. The readout device is a 4-1/2 digit, liquid-crystal display.
Enclosed in a rugged, weatherproof aluminum case, the DFI 9000 is specially designed for remote field operations.
Quick field setup allows the DFI 9000 to be used for a variety of applications, from checking the load on an oil well
drilling bit to determining natural gas line pressure.
Coarse zero and Course span controls allow broad adjustment for a wide variety of transducer outputs. To prevent
accidental misadjustment, these controls are located on the edge of the circuit board inside the unit, easily
accessible when the panel is removed from the case. Fine zero and fine span controls on the front panel allow
precise adjustment for offsets and gain variations up to +/-15 percent of full scale.
An optional peak detector toggles between peak mode and track mode via a front-panel switch. In both modes, the
unit monitors the input signal. In peak mode, the DFI 9000 stores, digitizes, and displays the highest signal level.
2.0 SETUP AND USE
2.1 Your DFI 9000
The DFI 9000 can be purchased in one of two ways:
•
As a stand-alone unit with a mating connector for the input connector
•
As a set with a transducer and a mating connector for the input connector
Some transducers are equipped with internal cables that are used to connect the transducer to the DFI 9000.
Cooper offers separate cables for transducers without integral cables.
If you purchased Assembly /Calibration with the DFI 9000 and a Cooper transducer, as a system, they are
calibrated together as a system. If Assembly/Calibration was not purchased, follow the setup procedures in this
section before using the unit.
If you purchased the DFI 9000 as a stand-alone unit or if you replace the original transducer, follow the setup and
calibration procedures before using the unit for the first time.
2.2 Additional Tools
Use the following tools to set up and calibrate your DFI 9000:
•
Two inches of #20 AWG wire (if needed)
•
Needle-nose pliers
•
Small, standard screwdriver
•
Calculator
•
Solder and soldering iron (if needed)
2.3 Setup Overview
1. Connect the transducer to the unit
2. Turn on the unit
3. Set the decimal point location
4. Verify the calibration
5. Fine tune
CF12 DFI 9000
1
Rev. C May 2004
