Sanwa MG500 Handleiding

Sanwa Meetapparatuur MG500

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07-1409 2040 6012
[1] SAFETY PRECAUTIONS
Before use, read the following safety precautions.
Thank you for purchasing the Sanwa MG1000/MG500 digital insulation
resistance tester. Before use, please read this manual thoroughly to ensure
correct and safe use. Keep this Instruction Manual together with the product.
Be sure to read the information under “ WARNING” that is intended to prevent
personal injury such as burn and electric shock and other serious accidents.
1-1 Explanation of Warning Symbols
The meaning of the symbols used in this manual and attached to the product is
as follows:
: Very important instructions for safe use
•The warning messages are intended to prevent accidents to operating
personnel such as burn and electric shock.
•The caution messages are intended to prevent incorrect handling and
measurement which may damage the product.
: Dangerous voltages
: Ground. : DC. : AC.
: Fuse. : Double or enhanced insulation.
1-2 Warning Messages for Safe Use
WARNING
The following instructions are intended to prevent personal injury such as burn and
electric shock. Be sure to follow them when using the tester:
1-3 Overload protection
The maximum rated input value and overload protection have been defined for
the input terminals of each function as shown below.
Function Max. Rated Input Overload Protection
MΩ -
M
Ω
range: Within 120 % of the rated measuring voltage.
V 600 Vrms 780 Vrms
4000 Ω - 600 Vrms
40 Ω - Fuse, 0.5 A / 600 V
Measurement Category (Overvoltage Category)
Overvoltage measurement category II (CAT. II ) :
Line on the primary side of equipment with power cord to be connected to the
receptacle.
Overvoltage measurement category III (CAT. III ) :
Line from the primary side or branch of equipment which directly takes in
electricity from a distribution board to the receptacle.
Overvoltage measurement category IV (CAT. IV ) :
Line from the service conductor to the distribution board.
[2] APPLICATIONS AND FEATURES
2-1 Applications
This instrument is a DC insulation resistance tester for use in measurement of
insulation resistance of a power line and power equipment within the range of
600 V under CAT III.
2-2 Features
• Safety design in compliance with IEC61010-1
• MΩ function with automatic live circuit detection (>30 V AC/DC)
• Easy-to-read display showing large figures and log bar graph for reading in an
analog feeling
• Automatic hold function to hold the last displayed value to look it safely after
measurement
• LCD panel with backlight function
• Auto discharge function
• 40.00 Ω measurement function ( 200 mA short circuit current)≧
[3] NAMES AND FUNCTIONS OF COMPONENT UNITS
WARNING
1. Never use the tester on a high-power or high-voltage line.
2. Voltages above 70 VDC or 33 Vrms AC (46.7 V peak) are hazardous to
human body. Never touch them.
3. Disconnect circuit power before testing insulation resistance.
4. Use caution with the high voltages output when performing insulation
resistance measurement to avoid electric shock.
5. To prevent electric shock, always discharge capacitive circuits after the
insulation resistance measurement.
6. Never input signals exceeding the maximum rated input value (see 1-3).
7. Never use the tester for measuring voltages of lines connected to
equipment (e.g. motors) that generates induced or surge voltage since it
may exceed the maximum allowable overload input.
8. Never use the tester if the tester or test leads are damaged or broken.
9. Never use the tester with the rear-case or battery lid removed.
10. When using the test leads, keep your fingers behind the finger guards.
11.
During measurement, do not change the function or range nor replace the plugs.
12. Never use the tester when it is wet or with wet hands.
13. Be sure to use the fuse of the specified rating and specification.
14. When connecting the alligator clip, connect it to the grounding side of the
object to be measured first. When disconnecting it, disconnect the test
lead from the line first, and then disconnect the teat lead from the
grounding side of the measured object.
15.
Never attempt repair or modification, except for battery and fuse replacement.
16. Inspect the tester at least once a year.
17. This tester is for indoor use only.
18. Never use the tester near equipment that generates strong
electromagnetic waves or is charged.
19. Do not use the instrument in a place where corrosive or explosive gas is
produced.
CAUTION
1. The measuring terminals ou put high voltages during insulation resistance t
measurement.
To prevent damaging the tester and parts (including chips) with low or unknown
withstanding voltages, connected to the measured electrical path (circuit), it is
recommended to disconnect them from the electrical path before
measurement. This care is specially important with computer equipment.
2. The rated measuring voltage used in insulation resistance measurement
should be as close as possible to the operating voltage of the circuitry to
measure. For example, when measuring an electrical path of 200 V, it is
recommended to use a tester with a rated measuring voltage of 250 V.
3.
While measuring insulation resistance, it will probable take time to get
steady result value on display in case that there is electrostatic capacitance
in the measured circuit.
Instrument body LCD panel
When pressed for more than 2 seconds, continuous test
voltage is output and indication appears. To release
the lock, press the LOCK or MEASURE button, the test
voltage output is stopped, the circuit under test is
discharged automatically, and the last displayed value
appears on the display together with the indication.
40 Ω measurement function:
When pressed for more than 2 seconds, indication
appears and the tester continues measuring. To release
the lock, press the LOCK or MEASURE button. The
measurement is stopped and the last displayed value
appears on the display together with the indication.
Turns backlight on/off. The backlight goes off
automatically after 10 seconds.
•When the LIGHT button is pressed during MΩ
measurement
which is performed by holding the MEASURE button, the
generation of the measurement voltage is interrupted and
the displayed value shows the indication.
Zero Ohm adjustment for 40
Ω
measurement function or
when selecting the maximum M
Ω
measurement function.
Turns the tester ON/OFF or to select a function. The body cover
cannot be closed unless this switch is set to the OFF position.
Lights up in MΩ measurement function. It blinks when
the test voltage drops below rated value.
Lights up when the input is about 30 V AC/DC or more.
It can be used as the live circuit detection, etc.
Space to store the test leads and alligator clips.
To attach a strap.
Numeral and decimal point
AC voltage operation indicator
Negative value indicator
MΩ measurement function:
Lights up when the tester outputs test voltage.
Lights up when the object to be measured is charged
about 30 V or more.
V measurement function:
Lights up when the input is 600 Vrms or more.
DC voltage operation indicator.
Auto Power Save mode indicator
The tester enters “power save mode” automatically if it
has not been operated for about 30 minutes. The tester
come out of “power save mode” when power/function
switch is turned to OFF once and set to the required
function again.
To cancel Auto Power Save function, turn the
power/function switch from OFF position to any desired
function while holding the LIGHT button pressed.
*A small electric current from power supply is present in
Auto Power Save mode. Be sure to set the
power/function switch to “OFF” after measurement.
Data Hold indicator
Test lock (continuous test voltage output) indicator
0 Ω adjustment indicator
Low battery warning indicator:
Appears when the batteries are exhausted (to about
7.2 V or less). When the indicator appears or blinks,
replace the batteries with new ones.
Unit indicators.
Logarithmic bargraph
Disabled in the 40 Ω measurement function
LOCK button
LIGHT button
0 Ω ADJ button
Power/function
switch
RATING VOLTAGE
indicator
ALARM indicator
Test lead storage space
Strap hook
4-2 Measurement Range and Accuracy
Temperature 23 ± 5℃, humidity 45 % to 75 % RH.
rdg: Reading. dgt: Digits
4-2-1 Insulation resistance measurement functions (kΩ , MΩ)
Model:MG1000
Model:MG500
Nominal test voltage &
Measurement Range
250 V
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
500 V
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
Center
scale
10 MΩ
1st effective
measurement range
0.500 20.00 M～Ω
±(3 %rdg+4 dgt)
2nd effective
measurement range
1st effective
measurement range
2nd effective
measurement range
1st effective
measurement range
2nd effective
measurement range
0 0.499 M～
Ω
20.01 4000 M～
Ω
±(5 %rdg+5 dgt)
100 MΩ
1.000 500 M～Ω
±(3 %rdg+4 dgt)
0 0.999 M～Ω
501 4000 M～Ω
±(5 %rdg+5 dgt)
1000 V
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
100 MΩ
2.000 1000 M～
Ω
±(3 %rdg+4 dgt)
0 1.999 M～
Ω
1001 4000 M～
Ω
±(5 %rdg+5 dgt)
Measurement Range Accuracy
Open circuit voltage 1 to 1.25 times of nominal test voltage
Rated current
1.0-1.2 mA (250 V @0.25 MΩ, 500 V @0.5 MΩ, 1000 V @1 MΩ)
Short-circuit current 2 mA or less
Live circuit detection
At ≧30 V AC/DC or more, inhibits test, buzzer sounds and
ALARM indicator lights up.
Nominal test voltage &
Measurement Range
Center
scale
1 MΩ
1st effective
measurement range ±(3 %rdg+4 dgt)
2nd effective
measurement range
1st effective
measurement range
2nd effective
measurement range
1st effective
measurement range
2nd effective
measurement range
±(5 %rdg+5 dgt)
10 MΩ
±(3 %rdg+4 dgt)
±(5 %rdg+5 dgt)
100 MΩ
±(3 %rdg+4 dgt)
±(5 %rdg+5 dgt)
Measurement Range Accuracy
Open circuit voltage 1 to 1.3 times of nominal test voltage
Rated current
1.0-1.2 mA (125 V @0.125 M
Ω
, 250 V @0.25 M
Ω
, 500 V @0.5 M
Ω
)
Short-circuit current 2 mA or less
Live circuit detection
At ≧30 V AC/DC or more, inhibits test, buzzer sounds and
ALARM indicator lights up.
125 V
400.0 kΩ
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
250 V
400.0 kΩ
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
20.0 kΩ～10.00 MΩ
0 19.9 k～
Ω
10.01 4000 M～
Ω
50.0 kΩ～20.00 MΩ
0 49.9 k～
Ω
20.01 4000 M～
Ω
500 V
400.0 kΩ
4.000 MΩ/40.00 MΩ
400.0 MΩ/4000 MΩ
100.0 kΩ～500 MΩ
0 99.9 k～
Ω
501 4000 M～Ω
[4] SPECIFICATIONS
4-1 General Specifications
Grounding/COM terminal for connecting the black alligator clip.
Line/+ terminal for connecting the red test lead.
Displays the value, function name or voltage output
status.
MΩ measurement function:
• Press and hold the button to output the test voltage.
When the button is released, the test voltage output
is stopped, the circuit under test is discharged
automatically, and the last displayed value appears
on the display together with the indication.
• When the button is pressed during continuous test
voltage generation using the LOCK button, the test
voltage is stopped, the last displayed value is held,
and the circuit under test is discharged automatically.
40 Ω measurement function:
• Press and hold the button to start measuring. When
the button is released, the test voltage output is
stopped and the last displayed value is held appears
on the display together with the indication.
• When the button is pressed during continuous
measurement using the LOCK button, the
measurement is stopped and the last displayed value is held.
Name Description
EARTH/COM terminal
LINE/+ terminal
LCD panel
MEASURE button
Note
When the displayed value is 2000 MΩ or more, the lowermost digit is fixed at 0.
“OL” indication on LCD
V function: 780 V or over
MΩ, 4000 Ω, 40 Ω function: Approx. 4200 count or over
AC Sensing
LCD
Sampling rate
Polarity indication
Low battery indication
Environmental condition
Power supply
Average value
4200 count with log bar graph
Approx. 2 times / sec.
“ ” indication only when negative input－
“ ” lights or flickers at about 7.7 V-7.2 V or below
Altitude 2000 m or below, pollution degree 2
Auto only
Range up: approx. 4200 count or over,
Range down: approx. 380 count or below
Range selection
Over-range indication
Operating temperature /
humidity
0 ℃ to 40 ℃ and maximum relative humidity 90 %
(No condensation)
Storage temperature /
humidity
-10 ~ 50 , 70 %RH or below (with battery removed). ℃ ℃
R6P 1.5 V x 6 pcs (MG500) ; LR6 1.5 V x 6 pcs (MG1000)
*
At 5-sec. ON / 25-sec. OFF
12
18
19
20
21
22
23
24
17
16
15
13
14
11
10
5
6
7
9
8
1
2
4
3
* Insulation resistance measurement principle:
Detecting a current flowing through the circuit to be
measured being applied a DC voltage, the insulation
resistance is calculated from "the voltage / the current".
Operating instrumental uncertainty:
±
30 %
variation due to changing "E1：Position, E2：Supply voltage, E3:Temperature"
（This specification describes maximum values accepted by the standard.）
MG1000/MG500
INSTRUCTION MANUAL
Dempa Bldg , 4-4 Sotokanda 2-Chome.
Chiyoda-ku, Tokyo, Japan
170 ( ) X 142 ( ) X 57 ( )L W H
Approx. 600 g (battery included)
Apporox. 7 mA at V function
test leads (TL-112a), Strap (ST-50), instruction manual
Dimensions
Mass
Power consumption
Accessories
Safety
EMC
IEC61010-1, IEC61010-2-030, IEC61010-2-033 CAT.III 600 V
IEC61557-1/2/4, IEC60529-IP54, IEC61010-031
IEC61326
MG500 : Approx. 500 times (with manganese battery)
MG1000 : Approx. 300 times (with alkaline battery)
Time of
measurement *
INSULATION RESISTANCE TESTER
Test lead (TL-112a)
Removable test pin covers
When not covered：CAT. 1000 VⅡ
When covered：CAT. 600 VⅢ
Strap (ST-50)
Finger
guards
Plugs
Test pins
When not covered
Removable screw-in
test pin cover (rotate
to remove)
12 12
18 19 20 21 22
23
24
17
16
15
14
13
11
10
1
2
4
567
9
8
3
4-2-2 Voltage measurement function (AC/DCV)
Range Resolution Accuracy
Input Resistance
Max. Overload Protection
AC/DC 600 V
1 V
±
(3 %rdg+2 dgt) 9 M 780 VrmsΩ
Note
ACV and DCV are automatically detected.
Sensitivity: 2 V or higher.
AC frequency bandwidth: 45-400 Hz
The ALAMP indicator lights up when the input is ≧30 V AC/DC.
“ ” appears and buzzer sounds if the input is 600 Vrms.≧
Maximum display value: 780 V.
4-2-3 4000 measurement function / Continuity buzzer ( )Ω Ω
Range Resolution Accuracy
Input Resistance
Max. Overload Protection
4000
Ω 1 Ω
±
(3 %rdg+3 dgt) 3 V 600 Vrms
Note
A buzzer sounds below about 40 Ω.
A buzzer sounds and the ALARM indicator lights up when the input is 30 V ≧
AC/DC.
4-2-4 40 measurement function ( )Ω Ω
Display Range 40.00 Ω
Measurement range 0.01 to 40.00 Ω Ω
Accuracy
±
(3 %+ 10 dgt) (after 0 Ω ADJ)
Resolution 0.01 Ω
Open Circuit voltage 6 V (typical value)
Short-circuit current 200 mA minimum ( 2.0 )Ω
Protection Fuse (0.5 A/600 V)
Note
The bargraph display is disabled.
[5] MEASURING PROCEDURE
5-1 Opening/closing the body cover
The body cover cannot be closed unless
the function switch is OFF.
5-2 Start-up inspection
5-3 Voltage measurement method
Note
ACV and DCV are automatically
detected.
5-4 Insulation resistance measurement method
5-4-1 Buttons used in the measurement
Measurement: button, button (to set the max test voltage function)MEASURE 0 Ω ADJ
Continuous measurement: and buttons.LOCK MEASURE
5-4-2 Measurement method
1. Connect the test leads to the object (circuit) to be measured.
If the object to be measured is a live circuit ( 30 V AC/DC), the voltage is ≧
displayed, buzzer sounds, and the ALARM indicator lights up. In this case, the
test voltage cannot be output by pressing the MEASURE or LOCK button.
Disconnect the power supply from the object to be measured and try again.
2. Output the test voltage.
Start measurement ( button) Continuous measurement ( button)MEASURE LOCK
3. End the measurement. 3. End of continuous measurement
At the moment the test voltage output is stopped, the last displayed value is held
automatically ( indication) and the measured object (circuit) is discharged
automatically.
When the measured object (circuit) is discharged below 30 V, the indicator
goes off.
Note
1. An oscillation tone may be heard during measurement, but this is not malfunction.
2. The automatically held value is retained until the start of the next measurement
or the tester enters APS mode. The held value is released and the new
measurement value is displayed when the next measurement is started.
3.
If a measuring point of certain equipment for insulation resistance measurement is
unknown, contact the manufacturer of that equipment to ensure correct measurement.
5-5 4000 Resistance measurement / Continuity check methodΩ
5-5-1 Buttons used in measurement
No button is used.
5-5-2 Measurement method
1. Set the power/function switch to “4000 .”Ω
2. Connect the test lead to the object to be measured.
3. Read the displayed value.
5-6 40 measurement methodΩ
5-6-1 Buttons used in measurement
Measurement: button and button.MEASURE 0 Ω ADJ
Continuous measurement: button, and button.LOCK 0 Ω ADJ MEASURE
5-6-2 Measurement methods
Method using the button:MEASURE
1. Set the function switch to “40.00 .” Ω
2. Short-circuit the test leads, press the MEASURE button, and release the
MEASURE button when the tester detects a stable reading. The displayed
value will be held.
3. Press the 0 Ω ADJ button to reset the displayed value to “0.00 .” [0 Ω Ω ADJ]
should light up at this time.
4. Connect the test leads to the object to be measured, and press the
MEASURE button.
5. To end measurement, release the MEASURE button. The last displayed
value will be held automatically.
Method using the button:LOCK
1. Set the function switch to “40.00 .” Ω
2. Short-circuit the test leads and press the LOCK button.
3. When the tester detects a stable reading, press the 0 Ω ADJ button to reset
the displayed value to “0.00 .” [0 ADJ] should light up at this time. Ω Ω
4.
Connect the test leads to the object to be measured and read the displayed value.
5. To end measurement, press the MEASURE or LOCK button. The last
displayed value will be held automatically.
Caution: The measurement consumes a large amount of current. Use caution
with the battery exhaustion.
The displayed value may not become depending on the “ ”0.00
contact condition while shorting the test leads.
[6] MAINTENANCE
6-1 Maintenance inspection
1) Appearance: Is the meter not damaged due to falling or other cause?
2) Test leads: Are the test leads not damaged, or is the core wire not exposed
from any part or broken?
If any of the above problems exists, stop using the meter and request for repair.
6-2 Calibration / Inspection
For more information, please contact your dealer or Sanwa agent.
6-3 Storage
Check if the instrument body appears damaged.
Check if appears on the top right of the LCD. If
appears or blinking, replace all batteries with new ones (see
section 6-4-1).
Select the 4000 measurement function, short the test lead Ω
and alligator clip, and ensure the displayed value is no more
than 1 . If “OL” is displayed, replace the test leads as they Ω
may be damaged.
Select the 40 measurement function, short the test lead and Ω
alligator clip, and ensure the displayed value is no more than
0.05 Ω. If “OL” is displayed, replace the fuse as it may be
damaged (see section 6-4-2).
Inspection/ Check
Appearance
Batteries
Test leads
Fuse
Method
The test voltage is output when the MEASURE
button is held pressed. appears and short
buzzer sounds during this operation.
Press and hold the button for more than LOCK
2 seconds to output the test voltage
continuously. and appears and short
buzzer sounds during this operation.
6-4 Battery / Fuse replacement
Battery when the meter is shipped:
A battery for monitoring has been installed prior to shipment from the factory. It
may be discharged before the expiration of the described battery life.
*The battery for monitoring is a battery used to check the functions and
performance of the product.
6-4-1
Battery replacement: R6P 1.5 V x 6 pcs (MG500) ; LR6 1.5 V x 6 pcs (MG1000)
Note: Use caution with battery polarity when replacing batteries.
6-4-2 Fuse replacement
Fuse: Part No. F1202, Ø6.3 X 32 mm, 0.5 A/600 V, breaking capacity 20 kA.
[7] AFTER-SALE SERVICE
7-1 Warranty and Provision
Sanwa offers comprehensive warranty services to its end-users and to its product
resellers. Under Sanwa's general warranty policy, each instrument is warranted to
be free from defects in workmanship or material under normal use for the period of
one (1) year from the date of purchase.
This warranty policy is valid within the country of purchase only, and applied only
to the product purchased from Sanwa authorized agent or distributor.
Sanwa reserves the right to inspect all warranty claims to determine the extent to which
the warranty policy shall apply. This warranty shall not apply to disposables batteries,
or any product or parts, which have been subject to one of the following causes:
1. A failure due to improper handling or use that deviates from the instruction
manual.
2. A failure due to inadequate repair or modification by people other than Sanwa
service personnel.
3. A failure due to causes not attributable to this product such as fire, flood and
other natural disaster.
4. Non-operation due to a discharged battery.
5. A failure or damage due to transportation, relocation or dropping after the
purchase.
7-2 Repair
Customers are asked to provide the following information when requesting services:
1. Customer name, address, and contact information
2. Description of problem
3. Description of product configuration
4. Model Number
5. Product Serial Number
6. Proof of Date-of-Purchase
7. Where you purchased the product
Please contact Sanwa authorized agent / distributor / service provider, listed in
our website, in your country with above information. An instrument sent to Sanwa
/ agent / distributor without above information will be returned to the customer.
Note:
1) Prior to requesting repair, please check the following:
Capacity of the battery, polarity of installation and discontinuity of the test leads.
2) Repair during the warranty period:
The failed meter will be repaired in accordance with the conditions stipulated in
7-1 Warranty and Provision.
3) Repair after the warranty period has expired:
In some cases, repair and transportation cost may become higher than the price of
the product. Please contact Sanwa authorized agent / service provider in advance.
The minimum retention period of service functional parts is 6 years after the discontinuation
of manufacture. This retention period is the repair warranty period. Please note, however, if
such functional parts become unavailable for reasons of discontinuation of manufacture,
etc., the retention period may become shorter accordingly.
4) Precautions when sending the product to be repaired To ensure the safety of the
product during transportation, place the product in a box that is larger than the
product 5 times or more in volume and fill cushion materials fully and then clearly
mark “Repair Product Enclosed” on the box surface. The cost of sending and
returning the product shall be borne by the customer.
7-3 SANWA web site
http://www.sanwa-meter.co.jp/
E-mail: exp_sales@sanwa-meter.co.jp
Release the button to stop MEASURE
outputting the test voltage.
Press the or button to MEASURE LOCK
stop outputting the test voltage.
WARNING
1. Be sure to conduct the start-up inspection described in section 5-2 below.
2. Before measurement, disconnect power supply from the object (circuit) to
be measured.
3. After measurement, be sure to discharge the high voltage charged in the
measured object.
4. During measurement, keep your fingers behind the finger guards of the test
leads and do not touch the metallic part of the alligator clips.
5. After measurement, be sure to turn the power/function switch to “OFF”
position to prevent electric shock and battery exhaustion.
CAUTION
1. When selecting the maximum test voltage (insulation resistance
measurement), hold the 0 _ ADJ button pressed while turning the
power/function switch. Otherwise, the display shows “Err0” and the test
voltage will not be output even if the MEASURE or LOCK button is pressed.
2. When the object to be measured is grounded, usually the alligator clip is
connected to the ground (EARTH) and the test lead to the measured circuit
(LINE). (This connection method usually results in a lower measurement
value than the opposite connection method.)
3. To prevent measurement errors, prevent the test lead connected to the
LINE terminal from touching the object to be measured or ground whenever
possible.
4. The insulation resistance varied greatly depending on the temperature and
humidity as well as on the output voltage (test voltage). In general, higher
temperature, humidity and/or output voltage mean lower insulation
resistance.
5. Measurement is inhibited if voltage ( 30 V AC/DC) is present in the circuit.≧
6. Keep in mind that the time of auto discharge will be delayed if fuse has
broken.
WARNING
1. The following instructions are very important for safety. Read this manual
thoroughly to ensure correct maintenance.
2. Calibrate and inspect the meter at least once a year to ensure safety and
maintain its accuracy.
CAUTION
1. The panel and case are not resistant to volatile solvent and must not be
cleaned with thinner or alcohol.
2. The panel and case are not resistant to heat. Do not place the tester near
heat-generating devices.
3. Do not store the tester in a place where it may be subjected to vibration or
from where it may fall.
4. Do not store the tester in places under direct sunlight, or hot, cold or humid
places or places where condensation is anticipated.
5. If the tester will not be used for a long time, remove the battery.
WARNING
1. If the rear case is removed with an input being applied to the measuring
terminals, you may suffer electric shock. Before starting replacement,
always make sure no input is being applied and the function switch is OFF.
2. Be sure to use the fuse of the specified rating and specification. Never use
a substitute nor short the fuse terminals.
Spare fuse
(optionally available)
Short beeps
GND
In case of Live circuit
OFF
Green
indication
ON/blinking
Red indicator ON
Hold for
more than
2 sec. and
then release.
Beep
Grounding
side
(EARTH)
Line side
(LINE)
Release
Red
indicator
ON
Buttons used
MΩ
MΩ
MΩ MΩ
MΩ
MΩ
Short beeps
Green
indication
ON/blinking
Press
Press here
or
here.

Product specificaties

Merk: Sanwa
Categorie: Meetapparatuur
Model: MG500

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