iET PRS-330 series Manual de usuario
♦PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988
www.ietlabs.com
IET LABS, INC.
PRS-330 SERIES
Programmable
Decade Resistance Substituter
(IEEE-488.2, Ethernet and USB)
Operation Manual
TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988
www.ietlabs.com
IET LABS, INC.
♦PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988
www.ietlabs.com
IET LABS, INC.
Copyright © 2019 IET Labs, Inc.
PRS-330 IM / March 2019
PRS-330 SERIES
Programmable
Decade Resistance Substituter
(IEEE-488.2, Ethernet and USB)
Operation Manual
TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988
www.ietlabs.com
IET LABS, INC.
♦PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦
WARRANTY
We warrant that this product is free from defects in material and workmanship and, when properly used,
will perform in accordance with applicable IET specifications. If within one year after original shipment,
it is found not to meet this standard, it will be repaired or, at the option of IET, replaced at no charge when
returned to IET. Changes in this product not approved by IET or application of voltages or currents greater
than those allowed by the specifications shall void this warranty. IET shall not be liable for any indirect,
special, or consequential damages, even if notice has been given to the possibility of such damages.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE.
SAFETY PRECAUTIONS
The following general safety precautions must be observed during all phases of operation, service,
and repair of this instrument. Failure to comply with these precautions or with specific WARNINGS
elsewhere in this manual may impair the protection provided by the equipment. Such noncompliance
would also violate safety standards of design, manufacture, and intended use of the instrument.
IET Labs assumes no liability for the customer’s failure to comply with these precautions.
The PRS-330 complies with INSTALLATION CATEGORY I as well as POLLUTION DEGREE 2
in IEC61010-1.
If an instrument is marked CAT I (IEC Measurement Category I), or it is not marked with a
measurement category, its measurement terminals must not be connected to line-voltage mains.
The PRS-330 is an indoor use product.
DANGEROUS PROCEDURE WARNINGS
Comply with all WARNINGS - Procedures throughout in this manual and instructions on the
instrument prevent you from potential hazard. These instructions contained in the warnings must
be followed.
BEFORE APPLYING POWER
Verify that all safety precautions are taken. Make all connections to the instrument before applying
power. Note the instrument’s external markings described under “Safety Symbols”.
GROUND THE INSTRUMENT
This is a Safety Class I instrument. To minimize shock hazard, the instrument chassis and cabinet
must be connected to an electrical ground. The power terminal and the power cable must meet
International Electrotechnical Commission (IEC) safety standards.
SAFETY PRECAUTIONS CONTINUED
CAUTION
• DO NOT Operate in an Explosive Atmosphere
• Do not operate the instrument in the presence of inflammable gasses or fumes
• Operation of any electrical instrument in such an environment clearly constitutes a safety hazard
• Use Caution around live circuits and whenever hazardous voltages > 45 V are present
• Operators must not remove instrument covers
• Component replacement and internal adjustments must be made by qualified maintenance
personnel only
• DO NOT substitute parts or modify the instrument
• When working with high voltages; post warning signs, train personnel and keep unauthorized personnel
away.
Do not apply any voltage or currents to the terminals of the instrument in excess of the maximum limits
indicated in the specifications section of this manual.
To avoid the danger of introducing additional hazards, do not install substitute parts or perform unauthorized
modifications to the instrument.
Return the instrument to an IET Labs for service and repair to ensure that safety features are maintained
in operational condition.
Safety Symbols
General definitions of safety symbols used on the instrument or in manuals are listed below.
Caution symbol: the product is marked with this symbol when it is necessary for the user to
refer to the instruction manual.
Hazardous voltage symbol: the product is marked with this symbol when high voltage maybe
present on the product and an electrical shock hazard can exist.
Indicates the grounding protect terminal, which is used to prevent electric shock from the
leakage on chassis. The ground terminal must connect to earth before using the product
Direct current.
Alternating current.
Frame or chassis terminal. A connection to the frame (chassis) of the equipment which
normally includes all exposed metal structures.
On supply.
Off supply.
Hot surface. Avoid contact. Surfaces are hot and may cause personal injury if touched.
Disposal
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
This product complies with the WEEE Directive (2002/96/EC) marking requirements.
The affixed label indicates that you must not discard this electrical/ electronic product in domestic
household waste.
Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product
is classified as a “Monitoring and Control instrumentation” product.
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
Contact your local government for information regarding the collection systems available. If electrical
appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater
and get into the food chain, damaging your health and well-being.
When replacing old appliances with new one, the retailer is legally obligated to take back your old ap-
pliances for disposal.
Proposition 65 Warning for California Residents
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
This product may contain chemicals known to the State of California to cause cancer, birth defects, or
other reproductive harm
PRS-330 Series
iiTable of Contents
CONTENTS
WARRANTY........................................................................................................... i
WARNING ............................................................................................................. ii
CAUTION .............................................................................................................. ii
CONTENTS.......................................................................................................... iii
Chapter 1: INTRODUCTION ................................................................................ 1
Chapter 2: SPECIFICATIONS .............................................................................. 3
2.1 Specifications .................................................................................................................3
2.2 General Specifications and Stability ..............................................................................4
2.2 Typical Label..................................................................................................................5
Chapter 3: OPERATION....................................................................................... 7
3.1 Initial inspection and setup ............................................................................................7
3.1.2 Purpose .................................................................................................................7
3.1.3 Storage..................................................................................................................7
3.1.4 Bench and Rack Setup..........................................................................................7
3.1.5 Front and Rear Panel ............................................................................................7
3.1.6 Power Connections...............................................................................................8
3.1.7 Environmental ......................................................................................................8
3.1.8 Safety Considerations...........................................................................................8
3.1.9 Cleaning................................................................................................................9
3.2 Connection.....................................................................................................................9
3.2.1 General Considerations ........................................................................................9
3.2.2 Electrical Considerations......................................................................................9
3.3 Condensed Operating Instructions...............................................................................10
3.4 Menu Structure.............................................................................................................11
3.4.1 Home Screen ......................................................................................................15
3.4.2 Setting a Resistance Value..................................................................................15
3.4.3 Menu Key ...........................................................................................................15
3.4.4 Resistance Settings Menu...................................................................................15
3.4.5 Standard Values Menu........................................................................................16
3.4.5.1 Set Values ..................................................................................................16
3.4.5.2 Standard Value..........................................................................................17
3.4.5.3 Decade Value............................................................................................17
3.4.5.4 Percent Value............................................................................................17
3.4.6 RTD and Other Tables Menu..............................................................................18
3.4.6.1 User Select RTD Menu .............................................................................19
3.4.7 Remote Communications Settings Menu ..........................................................19
3.4.7.1 IEEE Interface Menu.................................................................................20
3.4.7.2 Ethernet Interface Menu............................................................................20
3.4.8 About Menu........................................................................................................20
3.5 Thermal emf Considerations .................................................................................21
3.6 Environmental Conditions.....................................................................................21
PRS-330 Series
iii Table of Contents
3.7 Remote Operation..................................................................................................21
Chapter 4: USB Interface .................................................................................. 22
4.1 Introduction..................................................................................................................22
4.2 Capabilities ..................................................................................................................22
4.3 USB Operation.............................................................................................................22
4.3.1 USB Interface Drivers ........................................................................................22
Chapter 5: ETHERNET INTERFACE ................................................................. 23
5.1 Ethernet Programming.................................................................................................23
5.2 Network Setup .............................................................................................................23
5.3 Ethernet Test Keyboard................................................................................................23
5.4 Network Configuration ................................................................................................24
5.5 Web Browser Configuration.........................................................................................25
5.6 VXI Configuration Utility............................................................................................26
5.7 Resetting Default Network Settings.............................................................................28
Chapter 6: IEEE INTERFACE............................................................................. 29
6.1 Introduction..................................................................................................................29
6.2 Capabilities ..................................................................................................................29
6.3 Address Switch and Communications Settings............................................................29
6.4 IEEE Option Operation................................................................................................29
Chapter 7: PROGRAMMING................................................................... 31
7.1 Introduction ......................................................................................... 31
Chapter 8: MAINTENANCE .................................................................... 33
8.1 Verification of Performance .................................................................... 33
8.1.1 Calibration Interval........................................................................ 33
8.1.2 General Considerations .................................................................. 33
8.1.3 Calibration Procedure .................................................................... 33
8.1.4 Adjustment of Internal Resistors ..................................................... 34
8.1.5 Calibration Menu and Process......................................................... 35
8.1.6 Full Calibration (adjustment) .......................................................... 35
8.1.7 Calibration History ........................................................................ 36
8.2 Replaceable Parts List ........................................................................... 35
Chapter 9: PRS-DMM Self Adjusting Software .................................... 39
9.1 PRS-DMM Self Adjusting Softtware ....................................................... 39
9.1.1 Overview...................................................................................... 39
9.1.2 General Requirements.................................................................... 39
9.1.3 Software Installation ...................................................................... 39
9.1.4 Connection Between DMM and PRS-330 ........................................ 39
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