Megger 210600 User manual

M 210600
Insulation &
Low Resistance Tester
User Guide
SAFETY WARNINGS
✱Safety Warnings and Precautions must be read and understood
before the instrument is used. They must be observed during use.
✱The circuit under test must be switched off, de - energized and
isolated before Insulation or Continuity tests are made.
✱Circuit connections must not be touched during a test.
✱The test button must not be pressed while connecting the test
leads or while changing ranges. (May cause ‘Live Circuit
Warning‘ to become inoperable).
✱The ‘Test’ button must not be pressed when making a voltage test.
✱The Default Voltmeter, ’Live Circuit Warning‘ and Automatic
discharge are additional safety features and should not be
regarded as a substitute for normal safe working practice.
✱The 210600 is protected for connection to Power distribution
systems up to 300 V Line - Ground, and 500 V Line - Line for
Installation Category III*.
✱It is recommended that fused test leads are used when measuring
voltage on high energy systems.
✱After insulation tests, capacitive circuits must be allowed to
discharge before disconnecting the test leads.
✱Test leads, prods and alligator clips must be in good order; clean,
and with no broken or cracked insulation.
✱Replacement fuses must be of the correct size, type and rating.
Symbols used on the instrument
Caution: risk of electric shock
Caution: refer to accompanying notes
Equipment protected throughout by Double
Insulation (Class II)
NOTE
THE INSTRUMENT MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT
PERSONS.

OPERATION
Live Circuit Warning
The live circuit warning indicator will illuminate if 60 V or more is detected at
the terminals. Testing should be aborted if lit.
Default Voltage measurement
The 210600 will act as a direct reading default voltmeter (0 to 600 V
a.c./d.c.) in the ‘Standby’ mode (when switched ‘On’, and any of the
Insulation test positions is selected). The ‘Test’ push must not be pressed
when making a voltage test. Note:- The 210600 is internally fuse protected
to 500 V. For fuse protection with supplies above 500 V, use Fuse Probe Kit
FPK5.
1. Turn the instrument ‘On’ by pressing the ‘On‘/‘Off‘ switch-button once.
2. Select any Insulation test position with the rotary selector switch. ’V’is
displayed.
3. Carefully connect the test leads to the circuit under test. Do not press
the ‘Test’ push.
4. Read the voltage measurement directly from the display.
5. Carefully disconnect the test leads and turn the instrument ‘Off‘ by
pressing the ‘On‘/‘Off‘ switch-button once.
Low Resistance measurement (kΩ)
1. Turn the instrument ‘On’ by pressing the ‘On /’Off ‘switch-button once.
2. Select kΩwith the rotary selector switch.
3. Ensure that all test leads are clean and in good condition, and connect
them to the isolated circuit under test.
4. Press the ‘Test’ push and read the measurement directly from the
display.
5. Disconnect the test leads and turn the instrument ‘Off‘ by pressing the
‘On‘/‘Off‘ switch-button once.
Insulation Testing (MΩ)
Automatic circuit discharge is effective when the ‘Test‘ push is released, and
decaying voltage is displayed until the circuit is discharged.
1. Turn the instrument ‘On’ by pressing the ‘On‘/‘Off‘ switch-button once.
2. Ensure that all test leads are clean and in good condition, and connect
them to the isolated circuit under test.
3. Select the required test voltage with the rotary selector switch.
4. Press the ‘Test’ push and read the measurement directly from the
display. Overrange is indicated by ‘ ’.
5. Release the ‘Test’ push and monitor any displayed voltage to confirm
when any discharging voltage decays to zero.
6. When the circuit has discharged, disconnect the test leads and turn the
instrument ‘Off‘ by pressing the ‘On‘/‘Off‘ switch-button once.
Low
Battery
Refer to Safety Warnings before using the instrument
DISPLAY FEATURES
Live
Circuit
Warning

Using the Guard Terminal
For basic insulation tests and where there is little possibility of surface
leakage affecting the measurement, it is unnecessary to use the guard
terminal. In cable testing, there may be surface leakage paths across the
insulation between the bare cable and the external sheathing due to the
presence of moisture or dirt. Where it is required to remove the effect of this
leakage, particularly at high testing voltages, a bare wire may be bound tightly
around the insulation and connected via the third test lead to the guard
terminal ‘G’.
The guard terminal is at the same potential as the negative terminal. Since the
leakage resistance is effectively in parallel with the resistance to be
measured, the use of the guard causes the current flowing through surface
leakage to be diverted from the measuring circuit. The instrument therefore
reads the leakage of the insulator, ignoring leakage across its surface.
SPECIFICATION
Insulation Ranges
Measuring Ranges: 0 - 1.999MΩat all test voltages
19.99 MΩat all test voltages
199.9 MΩat all test voltages
1999 MΩat 500 V and 1000 V d.c. test voltages
Fully auto - ranging at all voltages
Test Voltages (d.c.): 100 V; 250 V; 500 V; 1kV
Test V. Accuracy: ±5% at open circuit
Short Cct. Current: 1.2 mA nominal
Accuracy (73.4°F ± 3.6˚F): <500 MΩ: ± 3% ±2 digits
500 MΩto 1999 MΩ: ± 5% ±2 digits
Temp. Co-efficient: <500 MΩ: ≤86˚F, ±0.06% per °F, >86˚F ± 0.14% per ˚F
500 MΩto 1999 MΩ: ≤86˚F ± 0.11% per ˚F, >86˚F,
±0.28% per °F,
Hum Rejection: Within twice the normal accuracy if the noise current
does not exceed 1 mA for the 1 kV range, or 0.5 mA
for the other ranges and is within 45 Hz to 65 Hz.
Low resistance Range
Measuring Range: 0 - 1.999 kΩ
19.99 kΩ
Open Cct. Voltage: 4.3 V nominal
Accuracy (73.4°F ± 3.6˚F):± 2% of reading ± 1digit
1100
1000
900
800
700
600
500
400
300
200
100
0
0.01 0.1 110 100 1000 10000 100000
Terminal Characteristics
Leakage path
to ‘+’ve
terminal
to ‘G’
terminal
to ‘-’ve
terminal
Tightly bound bare wire

M
Archcliffe Road
Dover
Kent CT17 9EN Tel: [phone]
England Fax: [phone]
PO Box 9007
Valley Forge
PA 19484-9007 Tel: [phone]
U.S.A. Fax: [phone]
4271 Bronze Way
Dallas
TX 75237-1017 Tel: [phone] (U.S.A. only)
U.S.A. Tel: [phone] (International)
Fax: [phone]
110 Milner Avenue, Unit 1
Scarborough
ON M1S 3R2 Tel: [phone]
Canada Fax: [phone]
This instrument is manufactured in the United Kingdom.
The company reserves the right to change the specification or design without prior notice.
Megger is a registered trademark.
Part No. 6172-373 - Edition 4 - Printed in England - 11HH
www.megger.com

Short Cct. Current: 2.75 mA nominal
Temp. Coefficient: ±0.06% per °F
Default Voltage measurement
Range: 0 - 600 V a.c. / d.c. (effective on Insulation ranges
with ‘Test’ push not pressed)
Input impedance: 300 kΩto 1 MΩdepending on input voltage
Discharge Rate: A 1 µF capacitor will discharge to a safe level in ≤2 s
Accuracy: ±2% of reading ± 1 digit d.c. or a.c. at 45 Hz to 65 Hz
Temp. Coefficient: ±0.06% per °F
General Specifications
Overload rating: The 210600 is protected for connection to Power
distribution systems up to 300 V Line - Ground, and
500 V Line - Line for Installation Category III*.
Temp. Range:
Operating: 23°F to 122°F
Storage: 4°F to 158°F
Humidity:
Operating: 70% RH at 68°F, 60% RH at 95°F, 50% RH at 104°F
for measurements <200 MΩ
Storage: 95% RH at 95°F
Display: 31⁄2digit L.C.D. Maximum reading 1999
Automatic Discharge: Capacitive circuits are automatically discharged when
the ‘Test‘ push is released following an insulation test
Power Supply: 6 x 1.5 V AA ( Alkaline) type cells
Battery life: Typically 2100 x 5 second operations (worst case)
Note:- Battery cells should not be left in an instrument which may remain
unused for extended periods of time.
Low Battery Indicator: The low battery indicator symbol will appear
when the battery cells are exhausted.
Battery Replacement: The rear cover must not be opened if the test leads
are connected. To remove the rear cover, release the screw at the bottom of
the cover and lift the cover upwards.To avoid the possibility of shock, do not
press the ‘Test‘ push when changing batteries.
Fuses: 2 x 500 mA 500 V (F) H.B.C.10 kA min 11⁄4“ x 1⁄4“
To check the +ve fuse, short the +ve and -ve test leads and press the ‘Test’
push. An ‘ ’ reading indicates that the +ve fuse has ruptured.
Fuse Replacement: Held in screw type holders located in the base of the
instrument. Use a flat blade screwdriver to release the center part of each
fuse holder. Remove the fuses and test each in turn. Replace with fuse(s) of
the correct type, size and rating.
Weight: 2.2 lb (including batteries)
Dimensions: 7” x 5” x 5”
Cleaning: Wipe disconnected instrument with a clean cloth dampened with
soapy water or Isopropyl Alcohol (IPA)
*Relates to transient overvoltage likely to be found in fixed installation wiring.
0.5A(F) 500V
HBC(10 kA)
Guard fuse Positive fuse

ACCESSORIES
Supplied Part Number
User Guide 6172-373
Battery - 6 x 1.5 V AA (Alkaline) type
Test Record Card (5 supplied)
Optional
Carrying case 217740
Fuses 500 mA, 500 V (F) H.B.C. (pack of 5) 6121-289
Fused probe kit FPK4 6111-287
Test lead set comprising:-
1 black, 1 red, 1 green test lead, with alligator clips 6220-436
Test Record cards (Pack of 20) 6111-216
Publication - ‘A Stitch in Time’ AVTM21-P8B
REPAIR AND WARRANTY
The instrument contains static sensitive devices, and care must be taken in
handling the printed circuit board. If an instrument’s protection has been
impaired it should not be used, but sent for repair by suitably trained and
qualified personnel. The protection is likely to be impaired if for example; it
shows visible damage; fails to perform the intended measurements; has been
subjected to prolonged storage under unfavourable conditions, or has been
subjected to severe transport stresses.
NEW INSTRUMENTS ARE GUARANTEED FOR 1 YEAR
FROM THE DATE OF PURCHASE BY THE USER.
Note: Any unauthorized prior repair or adjustment will automatically invalidate
the Warranty. INSTRUMENT REPAIR AND SPARE PARTS
For service requirements for Megger Instruments contact :-
Megger Limited or Megger
Valley Forge Corporate Center Archcliffe Road
2621 Van Buren Avenue Dover
Norristown, PA 19403 Kent, CT17 9EN
U.S.A. England
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone]
or an approved repair company.
Approved Repair Companies
A number of independent instrument repair companies have been authorised
for repair work on most Megger instruments, using genuine Megger spare
parts. Consult the Appointed Distributor / Agent regarding spare parts, repair
facilities, and advice on the best course of action to take.
Returning an Instrument for Repair
If returning an instrument to the manufacturer for repair, it should be sent
freight pre-paid to the appropriate address. A copy of the invoice and of the
packing note should be sent simultaneously by airmail to expedite clearance
through Customs. A repair estimate showing freight return and other charges
will be submitted to the sender, if required, before work on the instrument
commences.
MeterCenter
2046 West Peninsula Circle
Chandler, AZ 85248
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