Metrix HI 803 Specification sheet

MODEL HI 803
Operaon and Installaon Manual
Doc# 0296-0018 • REV R (July 2017)
REF.
INPUT
MODE CURSOR
HELP SELECT
100 10K1K
FREQUENCY RANGE Hz
FREQUENCY
RUN
STORE
AMPLITUDE
ABC
7
PQR
6
MNO
5
JKL
4
GHI
9
DEF
8
STU
1
VWX
2
YZ -
3
0SPACE
PRINT PAPER
ADV
HI 803
TRANSDUCER TEST SET
50 mV/g
RS-232

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TABLE of CONTENTS
Chapter 1 - Overview
A Brief Descripon of Chapter 1
About METRIX Manuals
Descripon
Capabilies
Amplitude Units
Frequency Units
Automac Calculaon
Phase
Automac Mass Load Correcon
Help Screens
Large Memory
Printer
Automac Date/Time
Baery Powered
ICP Accelerometers
Reference Accelerometer Output
Automac Power Management
Automac Monitoring and Supervisory Limits
Principles of Operaon
The Signal Generator
The Power Amplier
The Electrodynamic Amplier
The Reference Accelerometer
The Microcomputer
Baery Operaon
Special Handling and Storage
Lithium Baery
Chapter 2 - specicaons
A Brief Descripon of Chapter 2
Specicaons for the HI-803 TTS
Display
Calibraon
Measurement Uncertainty
Frequency Readout Accuracy
Amplitude Range
Transducer Sensivity Range
Reference Accelerometer Output
DI-103 & DI-103A Triaxial Mounted Specicaons
Sensivity
Frequency Range:
Power
Printer
Physical Dimensions
Environmental Specicaons
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Chapter 3 - Installaon
A Brief Descripon of Chapter 3
Unpacking
Oponal Accessories
Mounng Bracket DI-103 (Triax) - Prt #0205-0057-01
Mounng Bracket DI-103A (Triax) - Prt #0205-0057-01
Kit
Kit
Cables for Sensivity Mode of Operaon
Kit
Kit
Installaon Procedures
TTS to TUT Cable Connector Pin Out Diagram (See Fig. 3-1)
Channel A
Channel B & C
Charge
Displacement Input
GND
+5V
Test Signal
Accelerometer - ICP Type
Accelerometer (Charge Type)
Triax Accelerometer (ICP Type)
Velocity Pickup
Piezoelectric Velocity Transducer
Displacement Eddy Current Proximity Probe
Voltage Powered Accelerometers
Chadwick-Helmuth Velocimeter #7310 Test Setup
Triaxial Accelerometer Installaon
Installaon of the Mounng Bracket and Cables
DI-103 Installaon for A & B Axes
DI-103 Installaon for the C-Axis Tests
DI-103A Installaon for A & B- Axes Tests
DI-103A Installaon for the C-Axis Tests
Installing Printer Paper
Transfer Test data from TTS to PC
Transfer Program
Data Format
Example of Download Data
Data Protocol
Chapter 4 - Calibraon
A Brief Descripon of Chapter 4
Required Test Equipment
TTS Calibraon Kit Prt. #0251-0009-01
Test Equipment Setup
Synthesizer Setup
Clear Memory Procedures
Calibraon Tests
Channel A Calibraon
Charge Channel Calibraon
Displacement DC Calibraon
REF Channel No Integ Calibraon
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Frequency Calibraon Procedures
Unit Setup Procedures
Chapter 5 - operang procedures
A Brief Descripon of Chapter 5
Modes of Operaon
Baery Check
Setup Mode
Monitor Mode
Sensivity Mode
Bit Test Mode
Support Funcons
Help
Print
Up/Down Arrows
Power Message
Control and Indicators
Displacement Limits
Recommended Maximum Loads to be Placed on the TTS
Stud Torque Values
Types of Sensors
Displacement Sensor
Velocity Sensor
Accelerometer
Operang Procedures
Baery Check Mode
Setup Mode
Setup Screen #1
Setup Screen #2
Setup Screen #3
Monitor Mode
Monitor Mode Tesng
Sensivity Mode
Sensivity Test Setup
Sensivity Test Procedures Volt Type Transducer
Sensivity Mode Tesng for Displacement Type Transducer
Displacement Test Setup
Dynamic Sensivity Test
Stac Linearity Test
Sensivity Mode Phase Check
Operang Hints
General Vibraon Informaon
Relaonship in the Characteriscs of Vibraon Signals for Sine Waves
Relaonships of Sinusoidal Velocity, Acceleraon and Displacement
Crossover Frequencies for the TTS
Standard Checks for Transducers
Cable and Connector Checks
Quick Check Procedure
Built-In-Test (BIT) Test Mode
TTS Blink Range Summary
TTS CALIBRATION PROCEDURE CHECK-OFF SHEET
Test Transducer and Mounng Fixture Weight Guide
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Table of Illustraons
CHAPTER 1 - OVERVIEW
FIG. 1-1 TRANSDUCER TEST SET (TTS) - BLOCK DIAGRAM
CHAPTER 3 - INSTALLATION
FIG. 3-1 CABLE CONNECTOR PIN OUT DIAGRAM
FIG. 3-2 ACCELEROMETER ICP TYPE
FIG. 3-3 ACCELEROMETER (CHARGE TYPE)
FIG. 3-4 TRIAX ACCELEROMETER (ICP TYPE)
FIG. 3-5 VELOCITY PICKUP
FIG. 3-6 PIEZOELECTRIC VELOCITY TRANSDUCER
FIG. 3-7 PROXIMITY PROBE
FIG. 3-8 VOLTAGE POWERED ACCELEROMETERS
FIG. 3-9 EXTERNALLY POWERED (FLOATING) ELECTRICAL SETUP
FIG. 3-10 TTS POWERED ELECTRICAL SETUP USING A SPECIAL CIRCUIT
(CONVERTS + TO -) LOCATED IN HOOKUP CABLE PRT. #0215-0102-01
FIG. 3-11 INSTALLATION OF MOUNTING BRACKET FOR AXIS A & B
FIG. 3-12 TOP PANEL/INPUT CONNECTOR
FIG. 3-13 ACCELEROMETER CONNECTOR PIN OUT DIAGRAM
FIG. 3-14 DI-103 A-AXIS POSITION WITH A ARROW POINTING DOWN
FIG. 3-15 DI-103 B-AXIS POSITION WITH B ARROW POINTING DOWN
FIG. 3-16 DI-103 INSTALLATION FOR C AXIS TEST
FIG. 3-17 DI-103A A-AXIS POSITION WITH A ARROW POINTING DOWN
FIG. 3-18 DI-103A B-AXIS POSITION WITH B ARROW POINTING DOWN
FIG. 3-19 DI-103A INSTALLATION FOR C-AXIS TEST
FIG. 3-20 PRINTER PAPER INSTALLATION
FIG. 3-21 HARDWARE OPTIONS FOR TTS AND PC CONNECTIONS
FIG. 3-22 SELECT COM PORT
FIG. 3-23 BROWSE TO FOLDER FOR SAVING DATA
CHAPTER 4 - CALIBRATION
FIG. 4-1 TTS INPUT TEST CABLE PRT. #0215-0095-01 WIRING DIAGRAM
FIG. 4-2 ADJUSTING THE REFERENCE OUTPUT (R113)
CHAPTER 5 - OPERATING PROCEDURES
FIG. 5-1 TTS CONTROLS, INDICATORS AND CONNECTORS
FIG. 5-2 BATTERY CHECK MODE SCREEN
FIG. 5-3 SETUP MODE SCREEN #1
FIG. 5-4 SETUP MODE SCREEN #2
FIG. 5-5 SETUP MODE SCREEN #3
FIG. 5-6 MONITOR MODE SCREEN
FIG. 5-7 SENSITIVITY MODE SCREEN
FIG. 5-8 SENSITIVITY TEST 1 SCREEN A
FIG. 5-9 DISPLACEMENT INTERIM SCREEN
FIG. 5-10 DISPLACEMENT PROBE MOUNTING FIXTURE WITH DIAL MICROMETER
FIG. 5-11 SENSITIVITY RESPONSE VARIANCES
FIG. 5-12 TYPICAL EDDY CURRENT PROBE PERFORMANCE
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Doc# 0296-0018 • REV R (July 2017) Page 6 of 61
CHAPTER 1 - OVERVIEW
A Brief Descripon of Chapter 1
This manual provides the user and service personnel with a descripon of the specicaons, installa-
on, setup, conguraon, operaon, communicaon, maintenance, and troubleshoong procedures
for the METRIX Instruments HI 803 Transducer Test Set (TTS). The HI 803 TTS is a totally self-contained
baery powered vibraon transducer tester. The TTS can be used in the eld or in the laboratory. The
TTS tests and veries the performance of most vibraon transducers including accelerometers, velocity
pickups and displacement probes. The TTS is also used to troubleshoot vibraon monitoring systems or
vibraon analyzers including cabling and associated system alarms and other instrumentaon.
About METRIX Manuals
Every METRIX Installaon and Operaon manual is organized into easily referenced chapters, that are
almost always the same:
• Chapter 1 - Provides an introducon to the instrument and an Overview of the equipment
and its capabilies.
• Chapter 2 - Provides a complete list of Specicaons.
• Chapter 3 - Contains informaon needed to Install the HI 803 TTS. (both standard and
oponal equipment)
• Chapter 4 - Provides all Calibraon instrucons.
• Chapter 5 - Pertains to the Operang Procedures of the HI 803 TTS.
METRIX Instruments hopes that this manual meets your needs for informaon and operaon. All cor-
recons or suggesons for improvements of this manual are welcome and can be sent to the Technical
Publicaons Department or Customer Support Department at METRIX Instruments Inc.
Descripon
The HI 803 TTS performs the following primary funcons:
1. Vibraon Generator “Shaker” - The vibraon generator is used to vibrate or “shake” the Transducer-
Under-Test (TUT). The frequency and amplitude of the applied vibraon are selectable and digitally
displayed. Operaon control is maintained and supervised by a microcomputer. A highly accurate refer-
ence accelerometer, which is traceable to the Naon Instute of Standards (NIST), is used to provide the
measurement signal, ensuring high accuracy of the displayed frequency and amplitude levels.
2. Automacally Calculates Transducer Sensivies - Internal elec- tronics provide the necessary signal
condioning and drive current for most transducers. By measuring the output signal of the TUT as it
is vibrated, and comparing it with an internal reference signal, the sensivity (signal out per unit of
moon) of the transducer is automacally calculated. This is calculated sensivity can then be used to
determine whether the TUT is within the transducer manufacturer’s specicaons. A thermal printer is
built in to the TTS to provide hard copy printouts of the test parameters and test results.
Capabilies
Amplitude Units
Vibraon amplitude units are selectable and displayed in acceleraon, velocity or
displacement. The units are also selectable in English or Metric.
Frequency Units
Vibraon frequency is displayed in hertz (Hz). Ranges are user selectable in 3-100 Hz, 100-
1000 Hz and 1000-10,000 Hz, with front panel selecons for 100, 1K and 10K respecvely.
Automac Calculaon
Sensivity calculaons (mV/engineering unit or pc/engineering unit) are automacally per-
formed using a microcomputer.

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Capabilies (connued)
Phase
During sensivity calculaon when the transducer selected is an acelerometer, the unit
displays the phase of the “transducer under test” relave to the internal reference acceler-
ometer.
Automac Mass Load Correcon
A special algorithm is used to automacally adjust measurements and calculaons to com-
pensate for the mass load of the transducer under test.
Help Screens
Help screens are provided during operaon to assist the operator.
Large Memory
Test parameters, test results and other test data can be stored in memory for future down
load via the printer. Informaon will be retained even though the TTS is turned o.
Printer
The TTS features a built-in thermal printer, which is used to hard copy data stored in memory.
Automac Date/ Time
A built-in real me clock displays date/me and automacally stamps hard copy print outs.
Baery Powered
Power is provided by two gel cell type baeries. The two baeries are charged via two built-
in charging systems that use a 110 VAC 50/60 Hz source. The user can use the TTS while the
baeries are being charged. 220 VAC is oponal.
ICP Accelerometers
Selectable current sources (.5 mA, 2 mA, 2.5 mA, 4 mA, 4.5 mA, 6 mA) are provided to power
ICP accelerometers.
Reference Accelerometer Output
A 50 mV/g, low impedance ( ~ 100 Ohms) reference accelerometer output signal is provided.
Automac Power Management
A power management and supervisory system is used to opmize power consumpon,
increasing the me between required charging. The instrument will automacally
turn o at the lowest acceptable voltage to ensure the baeries are not subjected to deep
discharge which can greatly reduce their operaonal life.
Automac Monitoring and Supervisory Limits
1. Warning - When test amplitude and/or frequency are out of acceptable ranges, the
operator is warned of the condion with ashing displays.
2. Shutdown - to prevent damage to the shaker, the TTS is automacally shut down when
maximum acceptable displacement limits are exceeded (approximately .125 inch P-P dis-
placement).
Principles of Operaon
The HI 803 Transducer Test Set is comprised of a Signal Generator, Power Amplier, Electro
dynamic Vibrator, Reference Accelerometer, Digital Voltmeter, Microcomputer and Digital
Indicator.

Doc# 0296-0018 • REV R (July 2017) Page 8 of 61
Capabilies (connued)
The Signal Generator
The signal generator produces a variable frequency sine wave which becomes the source of
the driving signal to produce the vibraon at the shaker head. The amplitude of this sine
wave signal is controlled by the front panel AMPLITUDE dial controller. The frequency is also
con trolled by the front panel FREQUENCY dial controller.
The Power Amplier
The power amplier is designed to provide the current required to drive the coil in the Elec-
trodynamic vibrator through an impedance matching circuit. The frequency and amplitude
of the shaker are controlled by and are proporonal to the frequency and amplitude of the
oscillator signal applied to the amplier input.
The Electrodynamic Amplier
The electrodynamic vibrator funcons by means of the interacon between the magnec
eld in the air gap and the oscillang current owing in the moving coil. This current gener-
ates a force at right angles to the liens of ux in the air gap and to the conductor carrying
the current. This force is proporonal to the product of the instanta- neous current and the
magnec ux density.
The Reference Accelerometer
The reference accelerometer is used to measure and set the level of vibraon at the shaker
head (which is the mechanical interface to the test transducer) for calibraon. The reference
accelerometer is an integral part of the shaker head. It’s sensing element is a ferroelectric
ceramic crystal that outputs a voltage proporonal to compression and extracon forces
imposed by a precise mass that is xed to the crystal assembly. This signal is condioned and
factory calibrate to 50 mV/g. A calibraon “standard” is maintained that is used to calibrate
the TTS and provide NIST traceability.
The vibraon levels can be read in English or Metric units as set by the setup program. Fre-
quency can be read in Hz.
The Microcomputer
The microcomputer manages the operaon of the TTS by interpreng external commands
entered from the front panel keys, monitoring operang parameters, measuring the built-in
reference accelerometer and the transducer under test, performing calculaons and driving
the display and printer. A signicant benet in having a microcomputer is its ability to run self
tests to insure the TTS is funconing properly.

Doc# 0296-0018 • REV R (July 2017) Page 9 of 61
FIG. 1-1 TRANSDUCER TEST SET (TTS) - BLOCK DIAGRAM
Baery Operaon
The TTS can be operated using an AC line power source or from its internal
rechargeable baeries. No switching is necessary since AC line power is always connect to
a built-in baery charger thereby providing a charge whenever connected to power. Maxi-
mum charge rate is achieved when the TTS is o.
Baery power for the TTS is supplied by two (2) sealed solid gel rechargeable baeries. The
baeries are designed for connuous charging without damage. Baeries should be kept
fully charged. Under nor- mal operaon, the TTS will operate in excess of 4 hours with fully
charged baeries.
Charge life is directly dependent on the power used which is established by the test require-
ments. When tesng requires high force be supplied to drive the test transducer (due to
heavy xturing or transducer size and/or due to high test levels) the charge life will be
shortened.
CAUTION A COMPLETE DISCHARGE CAN CAUSE BATTERY FAILURE.
A protecon circuit switches the TTS o automacally. When this occurs, the TTS must be
connected to AC power to acvate its charger right away. Under normal condions baeries
will obtain a full charge aer (8) hours charge me. If deep discharge occurs, one or more
days may be required to reach full charge.
Special Handling and Storage
The internal baeries are sealed and should provide long term service under normal operat-
ing condions. They are securely mounted heavy duty brackets so that no damage can occur
from shipping or normal transportaon. No special handling should be required.
TUT
AMPLIFIER
ASSEMBLY
Ref Accel
Amplifier
Assembly
Micro
Computer
and
Keyboard
DISPLAY
Sine
Generator
Freq
Ampl Adjust
Power
Amplifier
Assy
Electrodynamic
Shaker
PRINTER
CHARGER BATTERIES
TUT
Ref
Out

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Lithium Baery
There is a Lithium baery that is used to maintain power to internal RAM which stores cali-
braon informaon for the TTS. This baery is designed to be funconal for 6 or 7 years. If it
fails, the TTS will display the following message upon start up, indicang a RAM problem:
RAM Error
If this message appears contact your local METRIX Representave right away. The TTS will
have to be returned to the factory to have a new lithium baery installed and the soware
reentered and funconally checked.

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CHAPTER 2 - SPECIFICATIONS
A Brief Descripon of Chapter 2
Chapter 2 lists the specicaons for the HI 803 TTS. Specicaons are listed for the standard instrument
and for oponal equipment. The specicaons listed are designed to assist in the installaon, operaon
and troubleshoong of the instrument. All service personnel should be familiar with this secon before
aempng an installaon or repair of this instrument.
Specicaons for the HI-803 TTS
Display • High Contrast, Wide Viewing Angle
• Displays 5 x 7 dots plus cursor
• 20 characters x 4 lines
• Backlit Screen
Calibraon Traceable to NIST standard at 100 Hz from 2 to 5 g’s
Measurement • Acceleraon: 10 Hz to 2k Hz ± .3 dB
Uncertainty 2kHz to 10k Hz ± 1 dB
• Velocity: 10 Hz to 500 Hz ± .3 dB
500 Hz to 2kHz ± .5 dB
• Displacement: 20 Hz to 150 Hz ± .3 dB
150 Hz to 200 Hz ± .5 dB
• Triax: 30 Hz to 200 Hz ± .3 dB
Frequency Readout Accuracy 3 Hz to 10 kHz: .001% +- 1 count
Amplitude Range
• Maximum Acceleraon 10 g (100 m/sec2), PK
• Maximum Velocity 10 in/sec (254 mm/sec), PK
• Maximum Displacement 100 mils (2.54 mm), Pk-PK
• Generates the peak output acceleraons at the frequency ranges and loads as
follows:
Frequency
Range
0-100
Grams
100-240
Grams
250-500
Grams
500-750
Grams
10-100 Hz 10 g 4 g 2 g 1 g
100-1000 Hz 7 g 4 g 2 g 1 g
1-2 kHz 3 g 1.5 g 1 g n/a
1-10 kHz 3 g 1.5 g n/a n/a
NOTE: 1. Limited at lower frequencies to 0.1 inch (2.54mm) PK-PK displacement.
2. Care should be taken when mounng the test transducer and its support brackets to
reduce the possibility of resonance and decoupling (an-resonance).
3. For maximum output, baeries should be fully charged. Preferably, the TTS should be
powered by an external AC power source.

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Transducer Sensivity Range
• Accelerometers:
ICP 5 mV/g - 200 mV/g
Charge 5 PC/g - 200 PC/g
• Velocity 5 mV/I.P.S. - 1 Volt/I.P.S.
• Displacement 30 mV/Mil - 300 mV/Mil
Reference Accelerometer Output
• Sensivity = 50 mV/g +- .15 dB @ 100 Hz
• Output Impedance = 100 Ohms nominal
DI-103 & DI-103A
Triaxial Mounted Specicaons
Sensivity +- 10% @ 100 Hz 10 mV/g
Frequency Range: Channel: A. +- 1 dB .2 - 2,000 Hz
Channel: B. +- 1 dB .2 - 2,000 Hz
Channel: C. +- 1 dB .2 - 5,000 Hz
Channel: C. +- 3 dB 1 - 10,000 Hz
Power • Baery Powered
• 115 VAC, 50/60 Hz charger (The instrument can be operated during charging)
• HI-803-220 VAC provides 220 VAC, 50 Hz charging capability
Printer • Thermal Type Printer
• Character Format 5 x 7 dot matrix
• Prinng Speed (Line/Sec) 0.9
• Paper Width 2.3”
Physical Dimensions
• Size - 11” (279.4 mm) Long x 7” (177.8 mm) Wide x 10” (254 mm) High
• Weight - 22.7 lbs (10.297 Kgs) 100 to 2700 F (-120 to +1320 C)
Environmental Specicaons
10° to 270° F (-120° to +132° C)

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CHAPTER 3 - INSTALLATION
A Brief Descripon of Chapter 3
All informaon contained in Chapter 3 pertains to unpacking, cabling, interconnecng, conguraon
and installing the HI 803 TTS and Oponal Equipment. Alternaves to any procedures contained or
implied in this chapter are not recommended. It is very important that the user and service personnel
be familiar with the procedures contained in this chapter, before installing or operang the HI 803 TTS.
METRIX Instruments appreciates your business. Should you experience any problems installing this
equipment, contact your local or METRIX Instruments Inc., Customer Support for assistance.
Unpacking
Step 1. Before signing the packing slip, inspect the packing for damage of any kind.
Step 2. Report any damage to the carrier company immediately.
Step 3. Check to see that everything in the package matches the bill of lading. You should normally have:
• One Assembled HI 803 TTS Unit
• Power Cord (Prt. #6006-0008)
• Connector, Input to HI 803 (Prt. #2112-0007)
• Special Spanner Wrench (Prt. #0228-0072-01)
• Velocity Transducer Mounng Fixture (Prt. #0228- 0071-02) with screw (Prt. #2824-0135)
• Mounng 1/4-28 Stud Adapters:
1/4-28 Stud - - - - - - - - - - 0228-0070-01
10-32 UNF Stud - - - - - - - - 0228-0070-02
2-56 UNC Threaded Bushing - - 0228-0070-03
6-32 UNC Threaded Bushing - - 0228-0070-04
10-32 UNF Threaded Bushing - 0228-0070-05
• Screwdriver (Prt. #0228-0094-01)
• Operaon and Installaon Manual
NOTE: To ghten the stud adapters to the shaker head mounng hole, use the screwdriver provided
(Prt. #0228-0094-01) in the Accessories Kit. Using this screwdriver insures an adequate load on both
ends of the adapter. Do not apply more than 6 in/lbs of torque to prevent damaging or breaking the
adapter.
Step 4. Write down the Model and Serial number of the instrument. Store this informaon in a conve-
nient locaon for reference when contacng The METRIX Customer Support Department for parts or
service.

Doc# 0296-0018 • REV R (July 2017) Page 14 of 61
Oponal Accessories
Mounng Bracket DI-103 (Triax) - Prt #0205-0057-01
Mounng Bolt: Di-103 0205-0073-01
Mounng Screw: Bracket 2824-0137
Mounng Bracket DI-103A (Triax) - Prt #0205-0057-01
Mounng Bolt: Di-103 0205-0073-01
Mounng Screw: Bracket 2824-0137
Kit Displacement Probe Mounng Fixture,
1 1/4” Height 0251-0011-01
Kit Displacement Probe Mounng Fixture,
6” Height 0251-0019-01
Cables for Sensivity Mode of Operaon
• DI-103 Accel 0215-0088-01
• DI-108 Accel 0215-0088-01
• Micro Dot (10-32), ICP 0215-0086-01
• Micro Dot (10-32), ICP 0215-0087-01
• Chadwick-Helmuth
Velocimeter #7310 0215-0094-01
• 7993 Accel, ICP, 2 Pin 0215-0129-01
• 7993T Accel, ICP, 3 Pin 0215-0130-01
• Accel, ICP, BNC 0215-0131-01
• Accel, ICP, Alligator Clips 0215-0132-01
• Displacement, Alligator Clips 0215-0133-01
NOTE: Other TTS to TUT cables and connectors can be purchased from METRIX Instruments Inc. Con-
tact your local METRIX Dealer for informaon.
Kit Mounng Studs/Bushings
• 1/4-28 Stud 0228-0070-01
• 10-32 UNF Stud 0228-0070-02
• Metric M6 Stud 0228-0117-01
• 2-56 UNC Threaded Bushing 0228-0070-03
• 6-32 UNC Threaded Bushing 0228-0070-04
• 10-32 UNF Threaded Bushing 0228-0070-05
NOTE: For replacement baeries please contact your local METRIX Representave or the METRIX
Instruments Service Center.
Kit Spare Fuses (3)

Doc# 0296-0018 • REV R (July 2017) Page 15 of 61
Installaon Procedures
TTS to TUT Cable Connector
Pin Out Diagram (See Fig. 3- 1)
FIG. 3-1 CABLE CONNECTOR PIN OUT DIAGRAM
Channel A Input for all transducers that provide voltage outputs. Current can be selected by
menu for those transducers requiring current between.5 mA and 6 mA for power.
(See Fig. 3-2)
Channel B & C Use ONLY when tesng triax accelerometer (ICP type) (See Fig. 3-4)
Charge Used for charge accelerometers with a sensivity between 10 PC/g to 100 PC/g
(See Fig. 3-3)
Displacement Input For proximity type displacement transducer with voltage output between 0 and
-24 volts.
GND TTS signal ground
+5V Regulated +9V output at 6 mA maximum
Test Signal Test signal output for use with loop back test cable.
Accelerometer - ICP Type
FIG. 3-2 ACCELEROMETER ICP TYPE

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Accelerometer (Charge Type)
FIG. 3-3 ACCELEROMETER (CHARGE TYPE)
Triax Accelerometer (ICP Type)
FIG. 3-4 TRIAX ACCELEROMETER (ICP TYPE)
Velocity Pickup
FIG. 3-5 VELOCITY PICKUP

Doc# 0296-0018 • REV R (July 2017) Page 17 of 61
Piezoelectric Velocity Transducer
Displacement Eddy Current Proximity Probe
Voltage Powered
Accelerometers
FIG. 3-6 PIEZOELECTRIC VELOCITY TRANSDUCER
FIG. 3-7 PROXIMITY PROBE
Some examples of Voltage Powered Accelerometers - Dynamic Instruments
DI-151, Wilcoxon 991B and Chadwick-Helmuth 4177B.
FIG. 3-8 VOLTAGE POWERED ACCELEROMETERS

Doc# 0296-0018 • REV R (July 2017) Page 18 of 61
Chadwick-Helmuth Velocimeter
#7310 Test Setup
The following informaon provides the electrical diagram for connect- ing the Chadwick-Helmuth Velo-
cimeter #7310 to the TTS. (See Figs. 3-9 & 3-10)
A
D
C
BVELOCIMETER
MODEL
#7310
TTS
4
2
GND
CHANNEL A
+V
GND
-V
GND
SIG
TTS INPUT PLUG
PRT. #2112-0007
-V = -5V TO -15V
+V = +5V TO +15V
@ 0.4 AMPS
EXTERNAL POWER
(FLOATING)
FIG. 3-9 EXTERNALLY POWERED (FLOATING) ELECTRICAL SETUP
A
D
C
BVELOCIMETER
MODEL
#7310
TTS
4
2
GND
CHANNEL A
GND
SIG
TTS INPUT PLUG
PRT. #2112-0007
3
+9V 6 4
1
5
7
8
+IN -OUT
LT1026
NC
GND
NC
+
+ 1 uF
.1 uF
23
-8.3V
+8.9V
FIG. 3-10 TTS POWERED ELECTRICAL SETUP USING A SPECIAL CIR- CUIT (CONVERTS + TO -) LOCATED IN
HOOKUP CABLE PRT. #0215- 0102-01
Triaxial Accelerometer Installaon
Installaon of the Mounng
Bracket and Cables
Step 1. ALWAYS use the Spanner Wrench (Prt. #0228-0072-01) to prevent damage to the Reference Ac-
celerometer when installing the mounng bracket or a test accelerometer. (See Fig. 3- 11)

Doc# 0296-0018 • REV R (July 2017) Page 19 of 61
FIG. 3-11 INSTALLATION OF MOUNTING BRACKET FOR AXIS A & B
Step 2. While holding the reference accelerometer steady with the spanner wrench, place the mounng
bracket (Prt. #0205- 0043-01) over the top of the reference accelerometer.
WARNING ALWAYS USE THE SPANNER WRENCH WHEN INSTALLING, REMOVING OR ADJUSTING THE
TRANSDUCERS OR MOUNTING BRACKET ON THE REFERENCE ACCELEROMETER.
Step 3. While sll holding the spanner wrench in place, use the allen wrench provided with the bracket
kit to screw the mounng bracket socket head screw into the reference accelerometer. (See Fig. 3-11)
Tighten the screw so that the bracket is snug against the reference accelerometer. If you want use a
torque wrench and torque to 18 inch pounds. Do not over torque the mounng screw. Overghtening
the mounng screw can cause bad readings.
Step 4. Install the connecng cable (Prt. # 0214-0088-01) between the Transducer under test (TUT) and
the input connector on the top panel. (See Fig. 3-12 & 3-13)
Triaxial Mounting Bracket
Mounting Bracket Screw
Spanner Wrench
Prt. #0228-072-01
Reference Accelerometer

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REF.
INPUT
MODE CURSOR
HELP SELECT
100 10K1K
FREQUENCY RANGE Hz
FREQUENCY
RUN
STORE
AMPLITUDE
ABC
7
PQR
6
MNO
5
JKL
4
GHI
9
DEF
8
STU
1
VWX
2
YZ -
3
0SPACE
PRINT PAPER
ADV
HI 803
TRANSDUCER TEST SET
50 mV/g
RS-232
Input Connector
FIG. 3-12 TOP PANEL/INPUT CONNECTOR
A
DC
B
FIG. 3-13 ACCELEROMETER CONNECTOR PIN OUT DIAGRAM
Pin Funcon
ASIG A AXIS
B SIG B AXIS
C SIG C AXIS
DGROUND
TABLE 3-1: ACCELEROMETER CONNECTOR PIN AND FUNCTION
DI-103 Installaon for A & B Axes
Step 5. Posion the TUT for the A posion. (See Fig. 3-14)
NOTE: For Triaxial Mounted Specicaons go to Chapter 2, Triaxial Mounted Specicaons.