EI Nexus 1250 User manual

Nexus
®
1250/1252
Advanced performance power meter
and power quality recorder
E
Electro Industries/GaugeTech
1800 Shames Drive
Westbury, New York 11590
Tel: [phone] Fax: [phone]
[email protected] www.electroind.com
“The Leader in Power Monitoring and Control”
Installation & Operation Manual
Version 1.29
August 7, 2008
Doc # E107706 V.1.29

E Electro Industries/GaugeTech Doc #E107706

E Electro Industries/GaugeTech Doc # E107706 i
N
exus® 1250/1252 Meter
Installation and Operation Manual
Revision 1.29
Published by:
Electro Industries/GaugeTech
1800 Shames Drive
Westbury, NY 11590
All rights reserved. No part of this
p
ublication may be reproduced or
transmitted in any form or by any
means, electronic or mechanical,
including photocopying, recording, or
information storage or retrieval
systems or any future forms of
duplication, for any purpose other than
the purchaser’s use, without the
expressed written permission of
Electro Industries/GaugeTech.
© 2008
Electro Industries/GaugeTech
Printed in the United States of
America.
N
exus® is a registered trademark of
Electro Industries/GaugeTech.

E Electro Industries/GaugeTech Doc # E107706 ii
Customer Service and Support
Customer support is available 9:00 am to 4:30 pm, Eastern Standard Time, Monday through
Friday. Please have the model, serial number and a detailed problem description available. If the
problem concerns a particular reading, please have all meter readings available. When returning
any merchandise to EIG, a return materials authorization number is required. For customer or
technical assistance, repair or calibration, phone [phone] or fax [phone].
Product Warranty
Electro Industries/GaugeTech warrants all products to be free from defects in material and
workmanship for a period of four years from the date of shipment. During the warranty period,
we will, at our option, either repair or replace any product that proves to be defective.
To exercise this warranty, fax or call our customer-support department. You will receive prompt
assistance and return instructions. Send the instrument, transportation prepaid, to EIG at 1800
Shames Drive, Westbury, NY 11590. Repairs will be made and the instrument will be returned.
Limitation of Warranty
This warranty does not apply to defects resulting from unauthorized modification, misuse, or use
for any reason other than electrical power monitoring. The Nexus® 1250/1252 meter is not a
user-serviceable product.
OUR PRODUCTS ARE NOT TO BE USED FOR PRIMARY OVER-CURRENT
PROTECTION. ANY PROTECTION FEATURE IN OUR PRODUCTS IS TO BE USED
FOR ALARM OR SECONDARY PROTECTION ONLY.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. ELECTRO INDUSTRIES/GAUGETECH
SHALL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL OR CONSEQUENTIAL
DAMAGES ARISING FROM ANY AUTHORIZED OR UNAUTHORIZED USE OF ANY
ELECTRO INDUSTRIES/GAUGETECH PRODUCT. LIABILITY SHALL BE LIMITED
TO THE ORIGINAL COST OF THE PRODUCT SOLD.
Statement of Calibration
Our instruments are inspected and tested in accordance with specifications published by Electro
Industries/GaugeTech. The accuracy and a calibration of our instruments are traceable to the
National Institute of Standards and Technology through equipment that is calibrated at planned
intervals by comparison to certified standards.
Disclaimer
The information presented in this publication has been carefully checked for reliability; however,
no responsibility is assumed for inaccuracies. The information contained in this document is
subject to change without notice.
This symbol indicates that the operator must refer to an explanation in the
operating instructions. Please see Chapter 3, Hardware Installation, for
important safety information regarding installation and hookup of the
Nexus® 1250/1252 Meter.

E Electro Industries/GaugeTech Doc # E107706 iii
About Electro Industries/GaugeTech
Electro Industries/GaugeTech was founded in 1973 by Dr. Samuel Kagan. Dr. Kagan’s first
innovation, an affordable, easy-to-use AC power meter, revolutionized the power-monitoring
field. In the 1980s Dr. Kagan and his team at EIG developed a digital multifunction monitor
capable of measuring every aspect of power.
EIG further transformed AC power metering and power distribution with the Futura+ device,
which supplies all the functionality of a fault recorder, an event recorder and a data logger in a
single meter. Today, with the Nexus® 1250/1252 meter, the Nexus® 1262/1272 meters and the
Shark® Series meters, EIG is a leader in the development and production of power monitoring
products. All EIG products are designed, manufactured, tested and calibrated at our facility in
Westbury, New York.
Today, EIG continues to maintain its standing as the world leader in power monitoring and power
quality technology. Our meters are used world wide by the largest investor-owned electric power
utilities, municipal governments, the Military, and industry. With over thirty years of experience,
EIG prides itself on being an integral component to the goal of making electrical power
distribution reliable and affordable.