Radio-Service E6-32 User manual
"RESEARCH AND PRODUCTION COMPANY "RADIO-SERVICE" JSC
INSULATION RESISTANCE TESTER / MEGOHMMETER
Е6-32
OPERATION MANUAL
This Operation Manual is intended for studying of structure and operating principle of
the digital Insulation resistance tester / megohmmeter Е6-32 (hereinafter referred to as
instrument) and contains the data relevant for proper operation, safety precautions and
calibration.
Operation conditions of instrument are as follows:
- temperature range from 15 to plus 50 ºС ;
- upper limit of relative humidity is 90 % at temperature of plus 30 ºС;
Standard conditions :
- ambient air temperature of plus 15 to plus 25 ºС;
- relative air humidity of 30 to 80%;
- atmospheric pressure of 84 to 106 kPa (630 to 795 mm Hg);
Protection grade of the casing IP54 in accordance with IEC 60529
Electrical safety as per IEC 61010-1, IEC 61010-2-30:2010.
The instrument satisfy the EMC compatibility requirements complies with
EMC directives complies with IEC 61326-1:2012.
Due to permanent upgrade of instruments, the items produced and the design
described in this Operation Manual may differ to some extent.
Attention! Please read this Operation Manual before switching the megohmmeter on.
Attention! At measurement sockets of megohmmeter the dangerous voltage
up to 3 kV is generated.
This device is protected by a double insulation or by a reinforced insulation.
CAT III 1000V CAT IV 600V Measurement category
AC voltage at sockets "+" and "-" shall not exceed 770 V.
2
1 DESCRIPTION AND OPERATION
1.1 Designation of instrument
Instrument is intended for measurement:
- insulation resistance of circuits that are not under voltage;
- DC/AC voltage before measurement;
- automatically calculate Dielectric Absorption Ratio (DAR) and Polarization Index (PI);
- continuity of earth connections and equipotential bonding;
- parameters of overvoltage protective devices (varistor voltage of overvoltage
suppressors at by direct-current flow 1 mА, static breakdown voltage discharge arresters at
DC).
1.2 Basic metrological characteristics:
Table 1 – Basic metrological characteristics
1 Electric resistance measurement of insulation to direct current
Resistance measurement range Аccuracy
1 kΩ to 999 MΩ (3% + 3 digits)
(3% + 3 digits)
1.00 to 9.99 GΩ
(5% + 5 digits) (< 250 V test voltages)
10.0 to 99.9 GΩ (from 500 V test voltages) (5% + 5 digits)
100 to 300 GΩ (from 500 V test voltages) (15% + 10 digits)
Resistance measurement range, as per IEC 61557-2
from R= Utest /1 mA to 10 GΩ
(at test voltage less than 500 V)
from R= Utest /1 mA to 300 GΩ
(at test voltage more than 500 V)
2 Test voltages
Test voltage 50, 100, 250, 500, 1000, 2500 V or
any from 50 to 2500 V (setup step 10 V)
Test voltage accuracy +15% maximum on open-circuit
Short-circuit current < 2mA
3 Voltage measurement (DC/ AC 45-60 Hz sine)
Measurement range 40 to 700 V
Accuracy (5% + 3 digits)
4 Measurement of varistor voltage at 1 mA DC Test current
Мeasurement range 100 to 1500 V
Accuracy (3% + 5 digits)
Error of 1 mA test current generation 2,5 %
3
5 Measurement of spark-gap breakdown voltage at DC
Мeasurement range 100 to 3000 V
Accuracy (5% + 10 digits)
6 Continuity measurement
Мeasurement range 0.01 Ω to 9.99 kΩ
Мeasurement range as per IEC 61557-4 0.13 Ωto 10 kΩ
Accuracy (3% + 3 digits)
Test current 200 mA (0 - 10 Ω);
Measurement voltage at open sockets, V 11 to 14
7 Complementary errors
Maximum permissible complementary error of measurement of AC voltage, insulation resistance, continuity,
varistor voltage and spark-gap breakdown voltage due to temperature change within the operating range,
1.5%
Maximum permissible complementary error of measurement of AC voltage, insulation resistance, continuity,
varistor voltage and spark-gap breakdown voltage due to ambient air relative humidity change within the
operating range, 5 %
1.3 General specifications
1.3.1 Nominal current of an instrument at measurement of insulation resistance as per IEC
61557-2 is not less than 1 mA.
1.3.2 Instrument ensure automatic switching of measurement ranges and
measurement units determining.
1.3.3 Upon switching off, the megohmmeters save the last measurement settings,
and restore them when switched on.
1.3.4 Instrument stores up to 10000 measurement results with the possibility of data
exchange with PC using specialized program “RS-terminal”.
1.3.5 Supply voltage range is from 7.5 to 5.2 V. 7 Instrument provides self-check of
supply voltage. At voltage decrease from 5.2 V to 5.0 V the megohmmeters are switched off.
1.3.6 Power supply is from nickel-metal-hydride (Ni-Mh) storage battery with “6 V”
rated voltage, “2000 mA/h” capacity or from five replaceable AA power components placed
in a battery compartment. It is allowed to use five AA batteries of 1.2 V rated voltage.
Consumption power is 6,5 W max.
1.3.8 Instrument has a storage battery charging mode, which is automatically
switched on when the power supply is connected. Charging process is shown on the
display. Instrument provides protection from incorrect connection of storage battery and
overcharge.
1.3.10 Instrument’s continuous operating time at resistance measurement during
cycle operation: measurement – 1 minute, pause – 2 minutes, is minimum 5 hours.
Table 1 – Basic metrological characteristics
4
1.3.11 In case of instrument’s non-use during 2 to 3 minutes it is automatically
switched off.
1.3.14 Weight is 0.8 kg max. Overall dimensions are 88х105х245 mm max.
1.3.16 Service life is at least 10 years.
1.4 Completeness
Components of megohmmeter delivery set are given in Table 2.
Table 2 – Delivery set
Description and designation Quantity
1 Insulation resistance tester / megohmmeter Е6-32 1
2 Operation Manual 1
3 Power unit 1
4 Cable set, including:
measuring cable RLPA.685551.002 – red, 1.5 m long;
connective cable RLPA.685641.002 – black, 1.5 m long;
connective cable RLPA.685641.002-01 – blue, 1.5 m long;
shielded measuring cable RAPM.685631.001 – 1.5 m long
1
1
1
1
5 Battery holder 5xAA RAPM.436244.007 1
6 Crocodile clip 2
7 Bluetooth-USB adapter 1
8 Instrument bag 1
9 Shipping package 1
5
1.5 Design and Operation
General view of instrument is given in Figure 1.1.
Figure 1.1
1 - jack for connection of the
power unit (central pin – “minus”);
2 – protective plate (protective cover);
3 – front panel;
4 – handle (hook).
6
Arrangement of controls and connectors of measuring cables is given in Figure 1.2.
Figure 1.2
1…4 – jacks for cables connection;
5 – LCD display;
6 – button switches
megohmmeter on and off;
7 – button calls a memory
function (writing, reading, deletion,
transmission of measured values to a
computer);
8 – button starts and stops
measurements. In the menu mode, the
button is used to confirm the selected option
or to return to the main mode.
9 – button switches between types and scopes of the displayed information
during insulation test (see item 2.3.4): value of insulation resistance, Dielectric Absorption
Ratio, Polarization Index. After the active measurement is finished, holding this button
returns to the main menu. In the menu mode, the button allows scrolling down the menu.
10 – button is intended for modes switching: selection of test voltage during
insulation resistance measurement, measuring of metallic bonding resistance and
classification voltage. In the menu mode, the button allows scrolling up the menu.
Appearance of shielded measuring cable is given in Figure 1.3.
Figure 1.3
Combined plug: signal wire to the
socket “-“, cable shield to the
socket “Е”
7
2 INTENDED USE
2.1 Operation shall be performed by electrotechnical personnel trained and certified
for operation in electrical installations and studied this Operation Manual.
During operation with the instrument, observe the requirements of "Occupational
safety rules during operation of electrical installations" and use the means of protection
against electric shock as per "Instruction on use and testing of protection means used in
electrical installations".
ATTENTION! It is prohibited to operate a faulty, damaged and non-
tested instrument and to deviate from its operating procedure.
ATTENTION! During measurement, high voltage is generated at the socket
"+" and object under test. After measurement completion, monitor decrease
of residual voltage to safe level by voltmeter readings on the instrument display.
2.2 Preliminary Procedures
2.2.1 If the instrument was exposed to a temperature differing from the operating one,
first it shall be held under the operating temperature for two hours. Check instrument for
mechanical damages and dirt. Check operability of protective covers and fasteners, integrity
of insulation and cleanness of cables. Check the power unit for mechanical damages and
dirt. Check the date of last calibration of megohmmeter. The calibration validity period shall
not be expired.
Prior to instrument operation, clean measurement sockets and areas around them.
Violation of this recommendation can lead to significant error of measurement caused by
surface leakage current.
In case of shielded measuring cable use it is required to check electric resistance
between signal and shield circuits from time to time. Resistance shall be 3 GΩ minimum at
test voltage of 2500 V.
2.2.2 Charging the Storage Battery
The power supply of instrument is provided with a nickel metal hydride storage
battery “5Н-АА2000В-1” of 2000 mA/h rated capacity.
Note. Before charging, make sure that storage batteries (not the batteries) are
installed in the battery compartment. Failure to comply with this rule may lead to damage of
battery compartment and battery.
8
Note. Storage battery is charged at ambient air temperature of plus 10 to plus 30 ºС.
Failure to comply with this rule may reduce the storage battery life.
To charge the storage battery, connect the output plug of power unit from the
delivery set to the instrument jack socket. Plug in the power unit to the 220 V mains.
On instrument the storage battery charging process is displayed by filling the
miniature battery symbol on the display. Upon charging completion the miniature battery
symbol is full.
To charge fully discharged storage battery, 7-8 hours are required.
If instrument is not used for a long period, it is recommended to recharge the storage
battery once in three months.
Note. Standard storage battery is charged with 400 mA to 500 mA current. When
charging a storage battery with other rated capacity, check its temperature regularly, for
example, by touch. If the temperature grows fast, stop charging.
2.3 Operating the megohmmeter Е6-32
To switch the instrument on / off press button .
After the instrument is switched on and self-tested, its software version is first shown
on the display, then the instrument switches over to mode of measurement that preceded
switching-off.
Supply voltage level is shown as miniature battery symbol in the top right corner:
shaded area is proportional to the supply voltage. If the display shows a caption "Battery is
dead. Switching off”, and the instrument switches off (supply voltage is lower than 5.2...5.0
V), charge the storage battery according to item 2.2.2, replace the storage battery or
batteries according to item 2.5.
2.3.1 Control and Service Options (Menu) of the Instrument
To enter the display menu press and hold button . The menu is context-
sensitive and depends on the current measurement mode. To scroll the menu, use buttons
and , to edit the selected option (selected options are shown in inverted form) and
to confirm use button .
9
Option “GENERAL SETTINGS” allows to changes the contrast level of the display,
to select the interface language and to switch on/off the audio warnings. Example of setting
is given in Figure 2.1.
Figure 2.1 – Menu. Instrument settings
Option “SET OF MODES” allows to remove or add to the set of available test types:
fixed test voltages (50, 100, 250, 500, 1000 and 2500 V), measurement of continuity
(Rcont), measurement of varistor voltage (Uvar), measurement of spark-gap breakdown
voltage (Udis), as well as to change the values of user test voltages (Us1, Us2).
Active modes available at selection by button is marked by "V" sign (see
Figure 2.2). To add or remove the mode in the list of available ones select the
corresponding item and press button , except for Us1 and Us2.
10
Table of contents
