CHG
ECO
DATE
BY
CHK
C
9352
26 OCT 98
ML
Warranty/Disclaimer
NEWPORT Electronics, Inc. warrants this unit to be free of defects in materials and workmanship for a
period of one (1) year from the date of purchase. In addition to NEWPORT’s standard warranty period,
NEWPORT Electronics will extend the warranty period for one (1) additional year if the warranty card
enclosed with each instrument is returned to NEWPORT.
If the unit should malfunction, it must be returned to the factory for evaluation. NEWPORT’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or written
request. Upon examination by NEWPORT, if the unit is found to be defective it will be repaired or
replaced at no charge. NEWPORT’s WARRANTY does not apply to defects resulting from any action of
the purchaser, including but not limited to mishandling, improper interfacing, operation outside of
design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows
evidence of having been tampered with or shows evidence of being damaged as a result of excessive
corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or
other operating conditions outside of NEWPORT’s control. Components which wear are not warranted,
including but not limited to contact points, fuses, and triacs.
NEWPORT is pleased to offer suggestions on the use of its various products. However,
NEWPORT neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by NEWPORT, either verbal or written. NEWPORT warrants only that the parts
manufactured by it will be as specified and free of defects. NEWPORT MAKES NO OTHER
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein
are exclusive and the total liability of NEWPORT with respect to this order, whether based
on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not
exceed the purchase price of the component upon which liability is based. In no event shall
NEWPORT be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by NEWPORT is not intended to be used, nor shall it be used: (1) as a
“Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in
medical applications or used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, or used on humans, or misused in any way, NEWPORT
assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and
additionally purchaser will indemnify NEWPORT and hold NEWPORT harmless from any liability or
damage whatsoever arising out of the use of the Product(s) in such a manner.
Direct all warranty and repair requests/inquiries to the NEWPORT Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO NEWPORT, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM NEWPORT’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the
outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.
FOR
WARRANTY
RETURNS, please have the
following information available BEFORE
contacting NEWPORT:
1. P.O. number under which the product was
PURCHASED,
2. Model and serial number of the product
under warranty, and
3. Repair instructions and/or specific problems
relative to the product.
FOR
NON-WARRANTY
REPAIRS, consult
NEWPORT for current repair charges. Have the
following information available BEFORE
contacting NEWPORT:
1. P.O. number to cover the COST of the repair,
2. Model and serial number of product, and
3. Repair instructions and/or specific problems
relative to the product.
NEWPORT’s policy is to make running changes, not model changes, whenever an improvement is
possible. This affords our customers the latest in technology and engineering.
NEWPORT is a registered trademark of NEWPORT Electronics, Inc.
© Copyright 1998 NEWPORT Electronics, Inc. All rights reserved.
This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine-readable form, in whole or in part, without prior written consent of NEWPORT
Electronics, Inc.
Return Requests/Inquiries
For immediate technical or application assistance please call:
NEWPORT
®
MODEL 305-A
3 1/2 DIGIT MINI-SIZE VOLTMETER
Made in the USA
SPECIFICATIONS
Analog Input
Range
±199.9 mV
±1.999 V
±19.99 V
±199.9 V
Input resistance 1 G
Ω
1.1 M
Ω
1.0 M
Ω
1.0 M
Ω
Bias current
50 pA
5 pA
1 pA
1 pA
Maximum input
130 Vp
250 Vp
250 Vp
250 Vp
Noise Rejection
NMR, sig hi to sig lo
56 dB, 50/60 Hz
CMR, sig lo to pwr gnd
120 dB, DC to 60 Hz
CMV, sig lo to pwr gnd
1500 Vp per HV test; 354 Vp per
IEC spacing
CMV, sig lo to dig gnd
0 volts
Accuracy at 25°C / Display
Maximum error
±0.05% of reading ±1 count
Display range
±1999
Span tempco
±0.02% of reading / °C
Full-scale step response
1 second
Warmup
30 minutes
Reading rate
2.5 / second
Overrange indication
Three least-significant digits blank
Power Options
Input power
24, 100, 115 or 230 Vac ±15%,
49-63 Hz
+5 or 7-32 Vdc, non-isolated
Environmental
Operating temperature
0 to 60°C
Storage temperature
-40 to +85°C
Relative humidity
95% at 40°C (non-condensing)
Mechanical
Case type
3/64 DIN (DIN 2472-100)
Bezel
1.89 x 3.78 in (48 x 96 mm)
Panel cutout 1/8 DIN
1.72 x 3.62 in (45 x 92 mm)
Depth behind bezel
4.32 in (110 mm), with connector
Weight
8 oz (227 g)
Case material
94V-1 UL-rated thermoplastic
11433ML-01
®
Newport Electronics, Inc.
2229 South Yale Street • Santa Ana, CA • 92704-4426 • U.S.A.
TEL: (714) 540-4914 • FAX: (714) 546-3022
Toll Free: 1-800-639-7678 • e-mail: info@newportUS.com
Newport Technologies, Inc.
976 Bergar • Laval (Quebec) • H7L 5A1 • Canada
TEL: (514) 335-3183 • FAX: (514) 856-6886
Toll Free: 1-800-639-7678 • e-mail: info@newport.qc.ca
Newport Electronics, Ltd.
One Omega Drive • River Bend Technology Centre
Northbank, Irlam, Manchester
M44 5EX, England
Tel: 44 (161) 777-6611 • FAX: 44 (161) 777-6622
Toll Free: 0800-488-488 • e-mail: info@newportinc.co.uk
Newport Electronics B.V.
Postbus 8034 • 1180 LA Amstelveen • The Netherlands
TEL: (31) 20 6418405 • FAX: (31) 20 6434643
Toll Free: 0800 0993344 • e-mail: info@newportinc.nl
Newport Electronics spol s.r.o.
ul. Rude armady 1868 • 733 01 Karvina-Hranice • Czech Republic
TEL: 420 (69) 6311899 • FAX: 420 (69) 6311114
Toll Free: 0800-1-666432 • e-mail: info@newport.cz
Newport Electronics GmbH
Daimlerstrasse 26 • D-75392 Deckenpfronn • Germany
TEL: 49 (07056) 3017 • FAX: 49 (07056) 8540
Toll Free: 0130 11 21 66 • e-mail: info@newport.de
Newport Electronique S.A.R.L.
9, rue Denis Papin • 78190 Trappes • France
TEL: (33) 130-621-400 • FAX: (33) 130-699-120
Toll Free: 0800-4-63978 • e-mail: info@newportelect.fr
Mexico and Latin America
TEL: 95-800-639-7678 • FAX: 95-203-359-7807
En Español: (203) 359-7803 • e-mail: espanol@newportinc.com
Internet e-mail
info@newportUS.com
NEWPORTnet
SM
On-Line Service
http://www.newportUS.com
It is our policy to comply with all applicable safety and EMC/EMI regulations worldwide. We are
constantly pursuing certification of our products to the European New Approach Directives. We will
add the CE mark to every appropriate device upon certification.
This device is marked with the international caution symbol. It is important to read the Setup
Guide before installing or commissioning this device as it contains important information
relating to safety and EMC.
