Metrix HI 803 User Manual

Doc# 0296-0018 • REV R (July 2017) Page 50 of 61
FIG. 5-9 DISPLACEMENT INTERIM SCREEN
PRESS RUN TWICE
TO CLEAR ALL FORMS
Sensivity Mode Tesng for Displacement Type Transducer
Displacement Test Setup
If the TUT is a non-contacng type (e.g. Eddy Current Probes) of dis- placement transducer, the probe
must be mounted in a bridge type x- ture (DI 223 [English] or DI 223-1 [Metric] and a special target ma-
terial must be secured to the shaker head (Reference Accelerome- ter). Typical Displacement Measure-
ment Systems include:
• Eddy Current Probe
• Extension Cable
• Oscillator/Demodulator
The TTS allows the displacement measurement systems to be checked dynamically by seng the shaker
vibraon to a known vibraon dis- placement and frequency measured by the built-in reference ac-
celerometer. The transducer system sensivity in mV/MIL P-P is read directly on the TTS display. The TTS
also has a DC Voltmeter mode which allows for seng inial probe gaps for tesng or for checking stac
linearity.
Step 1. Perform the sensivity setup procedures outlined above. When selecng the Transducer type
(Step 13) select DISPL.
Step 2. Press the down arrow to go to screen A. However, an interim screen appears. (See Fig. 5-9)
NOTE: The TTS is now in a DC Voltage measurement mode.
Step 3. Install the Eddy Current Probe Transducer System (DI-223 or DI-223-1). (See the Eddy Probe
Transducer System Manual for Instrucons) Contact your local METRIX Representave for purchase
informaon. METRIX Instruments provides two types of Mounng Fixture Kits as opons. The type of
xture determines the type of operaonal checks that can be performed using the TTS.
• Displacement Probe Mounng Fixture - 1 1/4” High (Prt. #0251-0011-01) - Allows measure-
ments to be made at preset probe gaps.
• Displacement Probe Mounng Fixture - 6 “High - Allows for both dynamic sensivity mea-
surements and stac linearity checks.
NOTE: All displacement measurements are made using a 4140 Steel Target Standard that aaches to
the reference accelerometer. This target is provided for both kits.
NOTE: Power for the Oscillator/Demodulator is supplied from an external source, separate from the
TTS.

Metrix HI 803 Specifications

General

Brand	Metrix
Model	HI 803
Category	Test Equipment
Language	English