AEMC 1060 User manual

QMEGOHMMETER 1050
1060
ENGLISH User Manual
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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Statement of Compliance
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met its published specifications.
An NIST traceable certificate may be
requested at the time of purchase, or obtained
by returning the instrument to our repair and
calibration facility, for a nominal charge.
The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer. For recalibration, please
use our calibration services. Refer to our repair
and calibration section at www.aemc.com.
Serial #: ________________________________
Catalog #: 2130.01 / 2130.03
Model #: 1050 / 1060
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com

Table of Contents
1. INTRODUCTION............................................................................... 4
1.1 International Electrical Symbols...........................................................4
1.2 Definition of Measurement Categories.................................................5
1.3 Receiving Your Shipment .....................................................................5
1.4 Ordering Information ............................................................................5
1.4.1 Accessories and Replacement Parts......................................6
1.4.2 Accessory Information ............................................................6
Remote Test Probe ..............................................................................6
DataView®Software (Model 1060).......................................................6
Serial Printer (Model 1060) ..................................................................6
Serial-to-Parallel Adapter (Model 1060)...............................................6
2. PRODUCT FEATURES ...................................................................... 7
2.1 Control Features ..................................................................................9
2.2 Digital Display Features .....................................................................10
2.3 Bargraph ............................................................................................10
2.4 Symbols .............................................................................................11
2.5 Button Functions ................................................................................12
2.5.1 2nd Button .............................................................................12
2.5.2 V-TIME / Button ..............................................................12
2.5.3 R-DAR-PI / R(t) Button..........................................................13
2.5.4 / ALARM Button ..............................................................15
2.5.5 / SMOOTH Button ...........................................................16
2.5.6 Button..............................................................................17
2.5.7 SET-UP Function ..................................................................17
2.5.8 Clearing the Memory.............................................................19
2.5.9 Communication Rate (RS-232).............................................19
2.5.10 Lead Resistance Compensation...........................................19
2.5.11 Default Device Configuration ................................................20
2.5.12 Blocking (Disabling) Test Voltages........................................20
2.6 Measurement Functions.....................................................................21

2.6.1 AC/DC Voltage......................................................................21
2.6.2 Insulation Measurement........................................................21
2.6.3 Continuity (40Ω) / Resistance (400kΩ)..........................22
3. SPECIFICATIONS........................................................................... 24
3.1 Reference Conditions.........................................................................24
3.2 Voltage ...............................................................................................24
3.3 Insulation Resistance.........................................................................24
3.4 Continuity ...........................................................................................28
3.5 Resistance .........................................................................................28
3.6 Power Supply.....................................................................................29
3.8 Mechanical Specifications..................................................................30
3.7 Environmental Specifications.............................................................30
3.9 Safety Specifications..........................................................................30
4. OPERATION .................................................................................. 31
4.1 Measurement Procedure....................................................................31
4.2 Insulation Measurement (see § 2.6.2)................................................31
4.3 Continuity Measurement (see § 2.6.3)...............................................32
4.4 Resistance Measurement (see § 2.6.3) .............................................32
4.5 Capacitance Measurement ................................................................32
5. MEMORY / RS-232 (Model 1060)........................................... 33
5.1 RS-232 Specifications........................................................................33
5.2 Saving / Recalling Values (MEM/MR Button).....................................33
5.3 Printing Measured Values ..................................................................35
5.4 Instantaneous Printing of Measurements (PRINT button) .................36
5.5 Printing Data in Memory (PRINT MEM button)..................................37
5.6 Printing with the Serial-to-Parallel Adapter.........................................38
6. APPLICATION EXAMPLES ............................................................. 39
6.1 Insulation Measurements on Electrical Installations...............................39
6.2 Measurements on Electrical or Telecom Cable..................................39
6.3 Insulation Measurements on Motors..................................................40

7. USING DATAVIEW®........................................................................ 41
7.1 Features.............................................................................................41
7.2 Installing DataView®...........................................................................41
7.3 Connecting the Model 1060 to your Computer ..................................45
7.4 Using DataView®................................................................................46
7.4.1 Configuring the Instrument....................................................47
7.4.2 Running the Test ...................................................................49
8. MAINTENANCE ............................................................................. 52
8.1 Battery Replacement (Model 1050) ...................................................52
8.2 Recharging the Battery (Model 1060) ................................................52
8.3 Fuse Replacement.............................................................................53
8.4 Cleaning.............................................................................................53
8.5 Storage...............................................................................................53
Repair and Calibration........................................................................................54
Technical and Sales Assistance .........................................................................54
Limited Warranty ................................................................................................55
Warranty Repairs................................................................................................55

4 Megohmmeter Models 1050 /1060
CHAPTER 1
INTRODUCTION
WARNING
These safety warnings are provided to ensure the safety of personnel and
proper operation of the instrument.
• Do not attempt to perform any tests with these instruments until you
have read the instruction manual.
• Safety is the responsibility of the operator!
• Tests are to be carried out only on non-energized circuits! Check for live
circuits before making resistance measurements (safety check).
• High voltage is present, as is the sample connected to it. Anyone
performing or assisting in testing must follow all safety precautions to
prevent electrical shock to themselves and to others.
• AEMC
®
considers the use of rubber gloves to be an excellent safety
practice, even if the equipment is properly operated and correctly
grounded.
• When testing samples with a capacitive component, make sure they
have been properly discharged and are safe to touch. Dielectric insula-
tion samples should be short-circuited for at least five times the amount
of time they were energized.
• Megohmmeters should never be used in an explosive environment.
• Use the leads supplied with the megohmmeters. If they are defective or
worn, replace before testing.
•
This instrument can be used on installations rated for 600V, Category III.
1.1 International Electrical Symbols
This symbol signifies that the instrument is protected by double or reinforced
insulation.
This symbol on the instrument indicates a WARNING and that the operator must refer
to the user manual for instructions before operating the instrument. In this manual,
the symbol preceding instructions indicates that if the instructions are not followed,
bodily injury, installation/sample and product damage may result.
Risk of electric shock. The voltage at the parts marked with this symbol may be
dangerous.
In conformity with WEEE 2002/96/EC

Megohmmeter Models 1050 /1060 5
1.2 Definition of Measurement Categories
CAT I: For measurements on circuits not directly connected to the AC supply
wall outlet such as protected secondaries, signal level, and limited
energy circuits.
CAT II: For measurements performed on circuits directly connected to the
electrical distribution system. Examples are measurements on household
appliances or portable tools.
CAT III: For measurements performed in the building installation at the distribution
level such as on hardwired equipment in fixed installation and circuit
breakers.
CAT IV: For measurements performed at the primary electrical supply (<1000V)
such as on primary overcurrent protection devices, ripple control units,
or meters.
1.3 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consistent with the
packing list. Notify your distributor of any missing items. If the equipment appears
to be damaged, file a claim immediately with the carrier and notify your distributor
at once, giving a detailed description of any damage. Save the damaged packing
container to substantiate your claim.
NOTE: Charge the instrument fully before use (Model 1060).
1.4 Ordering Information
Megohmmeter Model 1050.............................................................Cat. #2130.01
Includes detachable accessory pouch (one red, one blue test lead, one black shielded lead,
three color-coded (black, red and blue) alligator clips, one black test probe), batteries, spare
fuses and user manual.
Megohmmeter Model 1060.............................................................Cat. #2130.03
Includes detachable accessory pouch (one red, one blue test lead, one black shielded lead,
three color-coded (black, red and blue) alligator clips, one black test probe; one RS-232 DB9
F/F 6 ft null modem cable, rechargeable battery, DataView®software, US 120V power cord,
spare fuses and user manual.
NOTE: Spare fuse and clip are located inside the instrument’s case.

6 Megohmmeter Models 1050 /1060
1.4.1 Accessories and Replacement Parts
Remote Test Probe........................................................................... Cat. #2118.97
Cable, PC RS-232, DB9 F/F 6 ft Null Modem Cable (1060)............. Cat. #2119.45
Replacement Cable (for Serial Printer) PC RS-232, DB9 F/F 6 ft.... Cat. #2119.46
Fuse, set of 5, 0.1A, 660V................................................................ Cat. #2119.56
Fuse, set of 1, 2.5A, 1200V.............................................................. Cat. #2119.57
Lead, Replacement Set (1 red, 1 blue test lead, 1 black shielded
lead, 3 color-coded alligator clips, 1 black test probe, no RS cable)
..... Cat. #2119.58
Converter, Serial-to-Parallel (RS-232/Centronics)............................ Cat. #2119.62
DPU414-30B Serial Printer (includes RS-232 6 ft cable,
power supply, rechargeable battery and 5 rolls of paper).................Cat. #2140.21
Paper, set of 5 rolls, for use with Printer DPU414-30B.....................Cat. #2140.22
Lead, Set of 3 Color-coded 10 ft Safety Leads.................................Cat. #2951.70
Replacement 9.6V Rechargeable Battery Pack (Model 1060).........Cat. #2960.21
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com/store for availability
1.4.2 Accessory Information
Remote Test Probe
• The yellow test button generates the test voltage when pressed.
• The push-button on the back of the probe allows you to light the test point
(approx 500 lux of light). This function is very useful, since insulation testing is
performed on de-energized installations, which can be in a dark area.
DataView®Software (Model 1060)
• Retrieve data from memory and plot graphs of the changes in insulation as a
function of the time over which the test voltage is applied, R(t).
• Print out protocols of personalized tests (depending on the user’s needs).
• Create text files for use on spreadsheets.
Serial Printer (Model 1060)
Recommended printer: SEIKO (EPSON): DPU414 - DPU411 - DPU41
This serial printer (Cat. #2140.21) comes with a PC RS-232, DB9 F/F 6 ft cable,
power supply, rechargeable battery and 5 rolls of paper.
Serial-to-Parallel Adapter (Model 1060)
The optional RS-232/Centronics adapter makes it possible to convert the serial
interface (RS-232) into a parallel printer interface (Centronics). This allows you to
print out measurements without having to use a personal computer.

Megohmmeter Models 1050 /1060 7
CHAPTER 2
PRODUCT FEATURES
The Megohmmeters Models 1050 and 1060 are portable instruments housed in
rugged casing.
The Model 1050 uses 1.5V (C cell) alkaline batteries.
The Model 1060 uses a rechargeable battery and AC power.
These megohmmeters are designed to check the safety of electrical installations
and equipment.
Units Measure:
• Voltage
• Insulation Resistance
• Continuity
• Resistance
• Capacitance
Advantages:
• Digital filtering of insulation measurements
• Measuring with the remote control probe
• Automatic voltage measurement in all functions
• Automatic detection of external AC or DC voltages on the terminals
• Threshold programming in each function, triggering audible alarms
• Timed control of measurement duration
• Fuse protection, with defective fuse detection and indication
• Automatic discharge of residual high voltage on the tested device
• Automatic shut-off to save the batteries
• Battery level indicator (1050) or battery charge status indicator (1060)
• Large easy-to-read back-lit LCD
Additional Features (Model 1060 only):
• Integral rechargeable battery
• 128kB memory, real-time clock and serial interface
• Control and programming of the instrument from a PC
(with DataView®software)
• Printing in RS-232 or Centronics mode

8 Megohmmeter Models 1050 /1060
MODEL 1050
!
V/TIME
R-DAR-PI
MEGOHMMETER
MODEL 1050
START/STOP
400 K
SET-UP
G
600V CAT III
OFF
40 
M-1000
V
M- 500V
M- 250V
M-100V
M-50V
2nd
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R(t)
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COM
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DAR
ALARM
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TEST
V
DC
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MODEL 1060
!
!
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V/TIME
R-DAR-PI
MEGOHMMETER
MODEL 1060
START/STOP
RS-232
85-256 V
50/60 Hz
MEM PRINT
400 K
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600V CAT III
OFF
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DC
AC
2nd
8.8.8.8

Megohmmeter Models 1050 /1060 9
2.1 Control Features
1. Safety terminals: “+”, “G” and “-”.
Next to the “-” terminal, there are 2 additional terminal contacts for the remote
control probe connection (3 contact connector).
2. Rotary selector switch with 9 positions:
• OFF - Instrument is off
• MΩ- 50V - Insulation measurement (2kΩto 200GΩ)
• MΩ- 100V - Insulation measurement (4kΩto 400GΩ)
• MΩ- 250V - Insulation measurement (10kΩto 1TΩ)
• MΩ- 500V - Insulation measurement (20kΩto 2TΩ)
• MΩ- 1000V -Insulation measurement (40kΩto 4TΩ)
• 400KΩ- Resistance measurement
• 40Ω- Continuity measurement
• SET-UP - Set-up of the megohmmeter
3. START/STOP button
4. Back-lit liquid crystal display
5. 6 buttons (1050) or 8 buttons (1060), each with a first and second function.
The second functions are highlighted in yellow below each button:
• 2nd - Selects the second function on each button
• R-DAR-PI - Lets you choose the type of measurement to be performed.
Instantaneous Resistance (R), Dielectric Absorption (DAR), or Polariza-
tion Index (PI).
• R(t) - Show/hide the interval values of insulation resistance, test voltage
and time-stamping, following a time-controlled test.
• V/TIME - When measuring insulation, pressing this button displays the
time elapsed since the beginning of the measurement, then the exact
voltage generated. When performing resistance or capacitance measure-
ment, this button has no effect. In MR (memory recall), it displays the date
and time at which the measurement was stored, the exact test voltage
and the OBJ : TEST number.
•- Activates or deactivates the “time-controlled” test mode
• - Turns the display backlight ON or OFF
• ALARM - Activates or deactivates the alarms programmed in SET-UP
•- Selects a parameter to be modified
• SMOOTH - Stops/Starts smoothing of displayed values during insulation
testing
• - Increases the flashing parameter being displayed. To move
about the list of interval insulation measurements, in the R(t) function.

10 Megohmmeter Models 1050 /1060
• - Decreases the flashing parameter being displayed. To move
about the list of interval insulation measurements in the R(t) function.
If the Vand Wbuttons are held down, the movement between param-
eters is increased to a faster rate.
Model 1060 only:
• MEM - Saves measured values
• MR - Recalls saved data
• PRINT - Prints measurement results
• PRINT MEM - Prints memory contents
6. AC power plug (direct operation on AC and battery recharge).
7. RS-232 serial interface male plug (9-pin) for connection to a PC or printer.
2.2 Digital Display Features
Main Display Indicates:
• Insulation measurement (resistance, DAR and PI, capacitance)
• Continuity measurement
• Resistance measurement
Small Display Indicates:
• Voltage measured or applied by the instrument
• Elapsed time or the output voltage, during insulation measurement
After recording data (1060), the small display also indicates the time and date in MR
(memory recall) mode, and the memory address with the OBJ : TEST number.
2.3 Bargraph
• Active during insulation measurement (0.1MΩto 1TΩ).
• Indicates the battery charge at start-up.
• Indicates free memory space - one segment representing approximately
100 groups of saved values, with each group holding approximately 50
recordings (1 OBJ and 1 TEST).

Megohmmeter Models 1050 /1060 11
2.4 Symbols
MEM/MR: Memory address (1060) - the number is displayed on the small digital
display.
OBJ:TEST: Memory address (1060) - the number is displayed on the small digital
display.
COM: Flashes on the screen when data is transmitted to the serial interface (1060)
or remains permanently displayed if there is a problem during transfer.
DAR/PI: Indicates the mode chosen before insulation measurement or the results
of these measurements.
Dangerous voltage generated; V >120V.
External voltage present, symbol is activated after pressing START, if
V >25VAC ±3V or > 35VDC.
Activation of “time-controlled test” mode or clock adjustment when in SET-
UP (1060).
Indicates that the second function of a button is to be used.
Flashes if the battery voltage is low, indicating that the batteries should
be replaced or recharged (See § 8). The voltage is displayed on the small
display for 2 seconds when the instrument is turned on. The main display
indicates “bat” when the test is carried on.
Signal that lead compensation is in effect.
Warning buzzer is activated.
Indicates that the automatic switch-off function has been deactivated.
SMOOTH: Smooths the insulation measurements displayed.
REMOTE: Remote control via an interface (1060). In this mode, all the buttons
and the rotary switch on the instrument are non-functional, except for the OFF
position.
FUSE HI: Flashes if the “+” input fuse is defective.
FUSE -G-: Flashes if the “G” input fuse is defective.

12 Megohmmeter Models 1050 /1060
2.5 Button Functions
2.5.1 2nd Button
• Selects the second function (highlighted in yellow) on the buttons.
• The symbol appears. This symbol disappears upon pressing the function
button chosen, except if the Wbutton is activated. In this case, it only disap-
pears when the button is pressed again, or if other function buttons are
pressed. This allows you to rapidly decrease parameters with the Wbutton,
without having to press the button every time.
2.5.2 V-TIME / Button
First Function - V/TIME
Displays all the secondary information available on the small display.
For Insulation Measurement:
• The time elapsed since the start of the measurement
• The voltage between the instrument’s “+” and “–” terminals
• Date, time, test voltage and OBJ:TEST number in memory recall mode (MR)
For Resistance or Continuity Measurement:
• Voltage between the instrument’s “+” and “–” terminals
• Date, time, test voltage and OBJ:TEST number in memory recall mode (MR)
Second Function - Time-controlled Test
Displays the measurement duration programmed in SET-UP on the small display.
• The symbol lights up.
• Pressing the START button begins the measurement process. The measurement
duration is set to 15 minutes by default.
• As soon as the measurement starts, the small display counts down the remaining
duration of the measurement. Once it reaches zero, the measurement stops.
• As the time-controlled test is carried out, interval samples (resistance/voltage values
as a function of time) are automatically saved. The time between each sample is set
to 30s by default, but it can be changed in the SET-UP menu.
• The samples are displayed with the R(t) function (see § 2.5.3) as long as a new
measurement has not been started. With each new measurement, the previous
sample value is erased from the memory. These sample values are saved with the
last value of the resistance if used with the MEM (memory storage) function.
NOTE: If the selector switch’s position is altered, or if the STOP button is pressed
during measurement, the measurement is interrupted.
This function is only active for insulation measurement.

Megohmmeter Models 1050 /1060 13
2.5.3 R-DAR-PI / R(t) Button
First Function - R-DAR-PI
The R-DAR-PI button allows automatic measurement of:
• Polarization Index (PI)
• Dielectric Absorption Ratio (DAR)
These two parameters are useful on long cables, or when monitoring the aging of
insulation on electrical machines.
On this material, measurement is adversely affected at the beginning, due to inter-
fering currents (from capacitive charges, dielectric absorption) which eventually
cancel each other out. Therefore, in order to get an accurate measurement of the
leakage current, it is necessary to carry out the measurement over a long period
of time, to reduce the influence of any interfering currents at the beginning of the
measurement.
Next we calculate the PI or the DAR ratios:
PI = R10 min / R1 min (2 values to record during a 10 min measurement)
DAR = R1 min / R30 s (2 values to record during a 1 min measurement)
The quality of insulation depends on the results found.
DAR PI State of the insulation
< 1.25 < 1 Inadequate, even dangerous
< 2
< 1.6 > 2 to < 4 Good
> 1.6 > 4 Excellent
Using the R-DAR-PI Function:
During or after measurement, the R-DAR-PI button allows you to scroll through
the following values:
• DAR (for measurements lasting >1 min).
• PI (for measurements lasting >10 min).
• Capacitance in μF (only after the measurement has stopped and the cir-
cuit has been discharged).
• Insulation resistance in MΩ, GΩor TΩ.
Automatic Measurement of DAR or PI:
• If the button is pressed when in voltage measurement mode before pro-
ceeding with a measurement, the following is displayed:
M DAR PI

14 Megohmmeter Models 1050 /1060
Depending on the choices (DAR or PI), the measurement goes as follows:
a) DAR: Press START - the DAR symbol flashes and the display indicates “- - - -”
as long as the calculation of the coefficient is not possible (t < 1 mn).
e.g.:

After 1 min, the measurement stops and the main display automatically shows the
DAR value. During or after measurement, the R-DAR-PI button can be used to see
the insulation measurement carried out, but it does not give the PI value since the
measurement has not lasted long enough.
b) PI: Press START - the PI symbol flashes and the display indicates “- - - -”
as long as the calculation of the coefficient is not possible (t < 10 mn).
e.g.:

After 10 minutes, the measurement stops and the main display automatically
shows the PI value. During and after measurement, the R-DAR-PI button makes
it possible to display the DAR (after 1 min), the PI (after 10 min) and the insulation
measurement.
Note: If during DAR or PI measurement (automatic or not), a high external inter-
ference voltage becomes present, or the insulation resistance goes beyond the
device’s measurement range, then the DAR or PI measurements are interrupted
and the screen indicates:
DAR or MPI M
Note: The 10 min / 1 min measurement durations for PI calculation can be modi-
fied in the SET-UP menu (see § 2.5.7), allowing changes to standards or to suit a
particular application.
Second Function - R(t)
Used to access the interval insulation resistance values as a function of time after
a measurement in “time-controlled test” mode (see § 2.5.2).
The time between each saved sample is programmed in the SET-UP menu.
This function is also available on the Model 1050, which has neither a read-write
memory for saving measured data, nor an interface for data retrieval from the
instrument by a PC.
Model 1050:
Up to 20 samples can be recorded during measurement at the sample rate chosen
in SET-UP (the default value is 30 seconds). It is possible to save more than 20
samples depending on available memory.

Megohmmeter Models 1050 /1060 15
Model 1060:
The number of samples that can be saved is only limited by the memory space
available.
To enter the display mode, press the R(t) button:
• The small display indicates the time 00:30 (e.g. the sampling frequency is
every 30s).
• The main display shows the corresponding R value.
Use the V/TIME button to alternate between the voltage and time (on the small
display), associated with the R value on the main display.
The button is used to scroll down through the all the samples saved during
measurement, allowing you to read the information in order to draw R(t) and V(t)
graphs.
This makes it possible to carry out R(t) analysis on-site, without a printer or a PC.
To exit this function, press the R(t) or R-DAR-PI button again.
2.5.4 / ALARM Button
First Function -
Turns the display back-light ON or OFF.
Second Function - ALARM
Activates/deactivates the ALARM function. The “ALARM” symbol is displayed
when activated.
If activated, and the high or low threshold values are programmed, the “ALARM”
symbol flashes and the buzzer (if activated) sounds continuously when the thresh-
old is crossed.
It is possible to program a different limit in each function. These limits will be stored
in memory even after the device is turned off.
Activating the Alarm Indication before a Test
To activate the Alarm Indication before performing a test you must go through the
following steps:
• Program the Alarm Set Point Resistance Value for the Test Voltage you
will be using.
• Turn the Rotary switch to the Setup position.
• Press the Yellow 2nd button and then the Alarm button to set Alarms. The
first time you press 2nd & Alarm you will see the alarm setting for 50 volt
tests.
• Press 2nd & Alarm buttons repeatedly until you see the test you wish to set
alarms for in the top line of the display. The sequencing will be 50, 100,
250, 500, 1000, Res and Cont.

16 Megohmmeter Models 1050 /1060
• Use the cursor keys to adjust the Blinking value. First select KΩ,MΩ,GΩ
or TΩusing the Up Arrow Key ().
• Next, press the Right Arrow Key () to move to the next selection which
is the greater than (>) / less than (<) choice. Use the to make your
selection.
• Press the again to move to the Resistance Value Set Point Selection.
You can change this value digit by digit using the / combination
working from the highest to lowest digit.
• When finished programming the alarm settings, place the rotary switch to
the desired test function.
• Before initiating a test, press the Yellow 2nd button and the Alarm button
to activate the Alarm Notification. The word “ALARM” will appear in the
lower left side of the display.
• Next, press the round yellow Start/Stop button to begin the test. The Alarm
symbol will flash and the buzzer will sound continuously if the Alarm set
point is tripped.
NOTE: If the rotary switch is turned off prior to the next test, the alarm notification
will be deactivated. You will need to press the Yellow 2nd button and the Alarm
button to activate the Alarm Notification when you turn the unit back on before
starting the next test, if alarm notification is desired.
2.5.5 / SMOOTH Button
First Function -
Selects the desired parameter to be modified - the selected parameter flashes.
It is modified using the button (see § 2.5.6).
Second Function - SMOOTH
Activates a digital filter for insulation measurement. It only has an effect on the
displayed values (which are smoothed) and not the actual measurements.
For example, this function is useful when the displayed insulation values are highly
unstable, brought about due to a capacitive component in the tested element.

Megohmmeter Models 1050 /1060 17
2.5.6 Button
Changes the flashing parameters displayed, or views R(t) values (see § 2.5.3).
As a general rule, two figures (day, month, hour, min., sec., and OBJ:TEST)
flash.
The Vand Wfunctions have a “follow-on” mode. (e.g. as soon as the high or low
program limit is reached, the parameter to be modified switches automatically to
the following low or high limit.)
First Function V
• Press button briefly to increase the displayed number slowly
• Press button for a longer time to increase at a faster rate
Second Function W
• Press button briefly to decrease the displayed number slowly
• Press button for a longer time to decrease at a faster rate
Unlike all the second functions of other buttons, it is not necessary to press the
button each time to get to the Wfunction. The symbol remains displayed
and is valid for the Wfunction (only), as long as the user does not deactivate it by
pressing or another button.
2.5.7 SET-UP Function
Configures the instrument.
After selecting SET-UP with the rotary selector switch:
• All the display segments are lit up for 1 second
• The software version number is displayed
• The instrument serial number is displayed
• “PUSH” comes up on the small display and “btn” on the main display,
inviting the operator to press a button
The SET-UP function is used to directly access the parameters to be pro-
grammed, by pressing the corresponding button:
• After having pressed a button, the corresponding figures or symbols
appear on the screen
• The figures or the symbols that can be modified flash on the screen
• Use the
and buttons
• All the parameters are immediately and permanently saved

18 Megohmmeter Models 1050 /1060
The table below defines the buttons that are functional when in SET-UP, and the
corresponding display with the possible range of adjustment.
Parameter program Comman d Button Display
main small symbol value
Duration of
“time-controlled test” 15 : 00 min. sec 1-59 min
1st and 2nd times for PI
calculation R-DAR-PI second time
(10 min)
first time
(1 min) min : sec 00 : 59
Time between interval
samples in “time-con-
trolled test”
R(t) 00 : 30 min : sec 5s - 10 min
Limit for MΩ- 50V ALARM 50kΩ50V ALARM < 2k-200G
and < / >
Limit for MΩ- 100V ALARM (2nd press) 100kΩ100V ALARM < 4k-400G
and < / >
Limit for MΩ- 250V ALARM (3rd press) 250kΩ250V ALARM < 10k - 1T
and < / >
Limit for MΩ- 500V ALARM (4th press) 500kΩ500V ALARM < 20k - 2T
and < / >
Limit for MΩ- 1000V ALARM (5th press) 1000kΩ1000V ALARM < 40k - 4T
and < / >
Limit for 400kΩ
(resistance measurement) ALARM (6th press) 100kΩrES ALARM < 0.01-400kΩ
and < / >
Limit for 40Ω
(continuity measurement) ALARM (7th press) 2ΩCont ALARM < 0.01-40Ω
and < / >
Time V/TIME 12 :55 hh (0-23)
mn (0-59)
Date (European version) V/TIME (2nd press) 17.03 1999 jj.mm.aaaa
Version : USA, European V/TIME (3rd press) USA/Euro USA/Euro
Clear Memory
MEM then MEM (2s) cLr ALL MEM
Selective clearing of
memory
MEM then and
and MEM (2s) cLr
OBJ : TEST
number
MEM +
OBJ : TEST 00...99
Baud PRINT 9600 bAUd 300...9600
or “parallel”
Buzzer On ON / OFF
Auto switch-off (2nd press) On ON / OFF
Compensation (3rd press) then
Vand START
- - - - (value
if START) On
ON / OFF
and 0.01-5Ω
Default configuration (4th press) then
START DFLt SEt
Disabling test voltages (5th press) On 50V ON / OFF
Disabling test voltages (6th press) On 100V ON / OFF
Disabling test voltages (7th press) On 250V ON / OFF
Disabling test voltages (8th press) On 500V ON / OFF
Disabling test voltages (9th press) On 1000V ON / OFF
The values shown on this table, in the “Display/main” and “Display/small” columns, are the factory default
values. In case they are accidentally changed, it is possible to get them back (see § 2.5.11).