NorthStar SLIM Tach
®
HS56 Instruction Manual
4
5 May 1999
CHAPTER 1
INTRODUCTION
1.0 Safety Summary
High current, voltage, and rotating parts can cause serious or fatal injury. The use of electric machinery, like all other uses of
concentrated power and rotating equipment, may be hazardous. Installing, operating, and maintaining electric machinery
should be performed by qualified personnel, in accordance with applicable provisions of the National Electrical Code and
sound local practices. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, and intended use of the instrument. NorthStar Technologies, Inc. assumes no liability
for the customer's failure to comply with these requirements.
Rotating Machinery
Avoid contact with rotating parts. Avoid by-passing or rendering inoperative any safety guards or protection devices. Avoid
extended exposure in close proximity to machinery with high noise levels. Use proper care and procedures in handling, lifting,
installing, operating and maintaining the equipment.
Before Installation
Safe maintenance practices with qualified personnel is imperative. Before starting maintenance procedures, be positive that,
(1) equipment connected to the shaft will not cause mechanical rotation, (2) main machine windings have been disconnected
and secured from all electrical power sources, and (3) all accessory devices associates with the work area have been de-
energized. If high potential insulation test is required, follow procedures and precautions outlined in NEMA standards MG-1.
Grounding
Improperly grounding the frame of the machine can cause serious or fatal injury to personnel. Grounding of the machine
frame and structure should comply with the National Electrical Code and with sound local practices. Check wiring diagram
before connecting power.
Do Not Operate In An Explosive Atmosphere
Do not operate the instrument in the presence of flammable gases or fumes. Operating any electrical instrument in such an
environment constitutes a definite safety hazard.
Keep Away From Live Circuits
Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made by
qualified maintenance personnel. Do not replace components with power cable connected. To avoid injuries, always
disconnect power and discharge circuits before touching them.
Do Not Substitute Parts Or Modify Instrument
Do not install substitute parts or perform any unauthorized modification to the instrument. Introducing additional hazards is
dangerous. Return the instrument to an authorized NorthStar Technologies, Inc. representative for service and repair to ensure
that safety features are maintained.
Dangerous Procedure Cautions
A CAUTION heading precedes potentially dangerous procedures throughout this manual. Instructions in the warnings
must
be followed.
