User Manual

CF 112 1 Version 3.1-0
DFI 200 HAND HELD INDICATOR OPERATION MANUAL
1 INTRODUCTION
This manual contains information for the operation of the DFI 200 hand held load cell monitor. The DFI 200 is
suitable for measuring weight, pressure, force, torque etc. The input required by the DFI 200 is a 4 wire mV/V
output type transducer. 5V excitation is provided for the transducer. Calibration, and set up functions are easily
achieved via front pushbuttons.
The DFI 200 is a high accuracy meter with the capability of high speed sampling. Sample rate is programmable in
steps from 5 to 100 samples per second. The instrument has a full scale range of 0.5mV/V to 100mV/V. Up to 3
separate calibration sets can be stored internally allowing viewing of scaling for up to 3 different load cells, or 3
scaling ranges without the need to recalibrate each time.
When used with the external memory option the DFI 200 can “read” the calibration scaling values stored in memory
in the load cell connector shell. The instrument can then display the correct scaling value for each individual load
cell which uses a memory device without the need for recalibration.
The DFI 200 is supplied with RS232 communications as standard but by default this is disabled. See “Serial
communications” chapter for internal DIP switch settings required for enabling the serial communications.
The DFI 200 has three calibration/scaling method options. It may be calibrated by applying two known weights to
the load cell or by entering the mV/V value for the load cell or via a single offset value.