N4L PSM1735 User manual

PSM1735
This manual is copyright © 2006-2020 Newtons4th Ltd. and
all rights are reserved. No part may be copied or reproduced
in any form without prior written consent.
Document Title: PSM1735 User Manual v2.24
Document Release Date: 07th October 2020
Firmware version on release date: v1.61
Document Ref: D000175 issue 01
User Manual

“Do not be hasty when making measurements.”
The PSM1735 is a precision instrument that provides you
with the tools to make a wide variety of measurements
accurately, reliably, and efficiently - but good metrology
practice must be observed. Take time to read this manual and
familiarise yourself with the features of the instrument in
order to use it most effectively.

DANGER OF ELECTRIC SHOCK
Only qualified personnel should install this equipment,
after reading and understanding this user manual. If in
doubt, consult your supplier.
RISQUE D'ELECTROCUTION
L'installation de cet équipement ne doit être confiée
qu'à un personnel qualifié ayant lu et compris le
présent manuel d'utilisation. Dans le doute, s'adresser
au fournisseur.
GEFAHR VON ELEKTRISCHEM SCHOCK
Nur entsprechend ausgebildetes Personal ist berechtigt,
diese Ausrüstung nach dem Lesen und Verständnis
dieses Anwendungshandbuches zu installieren. Falls Sie
Zweifel haben sollten, wenden Sie sich bitte an Ihren
Lieferanten.
RISCHIO DI SCARICHE ELETTRICHE
Solo personale qualificato può installare questo
strumento, dopo la lettura e la comprensione di questo
manuale. Se esistono dubbiconsultate il vostro
rivenditore.
PELIGRO DE DESCARGA ELÉCTRICA
Solo personal cualificado debe instalar este
instrumento, después de la lectura y comprensión de
este manual de usuario. En caso de duda, consultar con
su suministrador.

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i
IMPORTANT SAFETY INSTRUCTIONS
This equipment is designed to comply with BSEN 61010-1
(Safety requirements for electrical equipment for
measurement, control, and laboratory use) –observe the
following precautions:
Ensure that the supply voltage agrees with the rating of
the instrument printed on the back panel before
connecting the mains cord to the supply.
This appliance must be earthed. Ensure that the
instrument is powered from a properly grounded supply.
The inputs must not be connected to signals greater
than 10V peak.
Keep the ventilation holes on the underneath and sides
free from obstruction.
Do not operate or store under conditions where
condensation may occur or where conducting debris
may enter the case.
There are no user serviceable parts inside the
instrument –do not attempt to open the instrument,
refer service to the manufacturer or his appointed
agent.
Note: Newtons4th Ltd. shall not be liable for any
consequential damages, losses, costs or expenses
arising from the use or misuse of this product
however caused.

PSM1735 user manual
ii
DECLARATION OF CONFORMITY
Manufacturer: Newtons4th Ltd.
Address: 1 Bede Island Road
Leicester
LE2 7EA
We declare that the product:
Description: Phase Sensitive Multimeter
Model: PSM1735
Conforms to the EEC Directives:
2014/30/EU relating to electromagnetic compatibility:
EN 61326-1:2013
2014/35/EU relating to Low Voltage Directive:
EN 61010-2-030:2010:
January 2017
Jigar Patel
(Senior Engineer Newtons4th Ltd.)

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iii
WARRANTY
This product is guaranteed to be free from defects in
materials and workmanship for a period of 36 months from
the date of purchase.
In the unlikely event of any problem within this guarantee
period, first contact Newtons4th Ltd. or your local
representative, to give a description of the problem. Please
have as much relevant information to hand as possible –
particularly the serial number and release numbers (press
SYSTEM then LEFT).
If the problem cannot be resolved directly then you will be
given an RMA number and asked to return the unit. The
unit will be repaired or replaced at the sole discretion of
Newtons4th Ltd.
This guarantee is limited to the cost of the PSM1735 itself
and does not extend to any consequential damage or
losses whatsoever including, but not limited to, any loss of
earnings arising from a failure of the product or software.
In the event of any problem with the instrument outside of
the guarantee period, Newtons4th Ltd. offers a full repair
and re-calibration service. It is recommended that
PSM1735 is re-calibrated annually.
Please contact your local Distributor or the N4L office for
further details of N4L’s instrument repair and re-calibration
service.

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iv
ABOUT THIS MANUAL
The PSM1735 has a number of separate measurement
functions that share common resources such as the
keyboard and display.
Accordingly, this manual first describes the general
features and specification of the instrument as a whole;
and then describes the individual functions in detail.
Each function is described in turn, in its own chapter, with
details of the principles on which it is based, how to use it,
the options available, display options, specifications etc.
Detailed descriptions of the RS232 command set are given
in the separate manual “PSM17xx communications
manual”.
Due to our policy of continuous product improvement, we
reserve the right to change product specifications or
designs at any time without notice and without incurring
obligations. All Errors and omissions excepted (E&OE)

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v
CONTENTS
1Introduction –general principles of operation ........ 1-1
1.1 Voltage inputs ........................................................ 1-4
2Getting started ................................................. 2-1
2.1 Unpacking.............................................................. 2-1
2.2 Keyboard and controls ............................................. 2-3
2.3 Basic operation ....................................................... 2-4
2.4 Measurement Selectivity .......................................... 2-5
3Using the menus ............................................... 3-1
3.1 Selection from a list ................................................ 3-3
3.2 Numeric data entry ................................................. 3-4
3.3 Text entry .............................................................. 3-5
4Special functions ............................................... 4-1
4.1 Display zoom.......................................................... 4-1
4.2 Program store and recall .......................................... 4-2
4.3 Zero compensation.................................................. 4-3
4.4 Alarm function ........................................................ 4-4
4.5 Analogue output ..................................................... 4-6
4.6 Data hold ............................................................... 4-7
4.7 Parallel port............................................................ 4-8
4.8 Sweep results store and recall .................................. 4-9
5Using remote control ......................................... 5-1
5.1 Standard event status register.................................. 5-3
5.2 Serial Poll status byte .............................................. 5-4
5.3 RS232 connections.................................................. 5-5
5.4 Data streaming....................................................... 5-6
6System options................................................. 6-1
6.1 User data ............................................................... 6-3
7Measurement options......................................... 7-1
7.1 ACQU - Acquisition options....................................... 7-1
7.2 Datalog.................................................................. 7-4
7.3 SWEEP - Frequency sweep options ............................ 7-6
7.4 TRIM - Trim function ............................................... 7-8

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8Output control .................................................. 8-1
8.1 Generator specifications........................................... 8-3
9Input channels.................................................. 9-1
9.1 Trimming x10 oscilloscope probes ............................. 9-5
10 True RMS Voltmeter ........................................ 10-1
10.1 RMS voltmeter specification.................................... 10-4
11 Frequency response analyser ............................ 11-1
11.1 Frequency response analyser specification ............... 11-5
12 Phase angle voltmeter (vector voltmeter) ........... 12-1
12.1 Phase angle voltmeter specification ......................... 12-4
13 Power meter................................................... 13-1
13.1 Power meter specification ...................................... 13-4
14 LCR meter...................................................... 14-1
14.1 Applying Compensation ......................................... 14-6
14.2 LCR meter specification ........................................14-10
15 Harmonic analyser .......................................... 15-1
15.1 Harmonic analyser specification .............................. 15-4
16 Transformer analyser....................................... 16-1
16.1 Turns ratio ........................................................... 16-3
16.2 Inductance & leakage inductance ............................ 16-4
16.3 AC resistance and Q factor ..................................... 16-5
16.4 DC resistance ....................................................... 16-5
16.5 Interwinding capacitance ....................................... 16-6
16.6 Magnetising current............................................... 16-7
16.7 Return loss........................................................... 16-8
16.8 Insertion loss ....................................................... 16-9
16.9 Harmonics and distortion ......................................16-11
16.10 Longitudinal balance.............................................16-12

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APPENDICES
Appendix A Accessories
Appendix B Serial command summary
Appendix C Available character set
Appendix D Configurable parameters
Appendix E Contact details
Table of contents

















