Test Sample Size
7.62cm x 3.81cm or larger
General Characteristics
Power Supply
9 volt alkaline battery(included)
Test Voltage
Nominal 9 volts
Electrodes
Steel and conductive rubber
Temperature Range
Operating
10°C to 40°C
Storage
-15°C to +60°C
Relative Humidity
0% to 99% (non-condensing)
Operation
Resistance bridge
Readout
Seven LEDs
Resolution
One order of magnitude
Accuracy
±10% all, except ±20% 10E9, 10E10
Repeatability
±3%
Weight
6 ounces
Dimensions
10.16cm x 6.35cm x 4.45cm
Calibration
The Micro Meg is calibrated to NIST
traceable standards. It may be
returned to the factory for calibration.
Contact our Customer Service
Department at
0044 (0) 1462
672005
for a Return Material Authorization.
Written Purchase Orders are required
for calibration services.
A check on the function of the Micro
Meg can be performed with the
following procedure. You will need
1% resistors of the following values:
5 x 10E5 ohms; 5 x 10E6 ohms; 5
x 10E7 ohms; 5 x 10E8 ohms, 5 x
10E9 ohms, and 1 x 10E10 ohms.
These precision resistors will be
placed across the two electrodes on
the bottom of the meter (see Figure
7).
A. Place the Micro Meg on an
insulator (e.g. Teflon or glass) and
press the white test button. Only the
first red LED on the right, marked
“On” should be illuminated. If this
LED fails to light, the battery should
be replaced before proceeding.
B. Place the 1 x 10E10 ohms resistor
across the middle electrode and the
side electrode as illustrated in Figure
7. Press the test button. The second
LED should light. Be sure not to
contact the leads or the buttons as
your body’s resistance will affect the
readings. Then use the 5 x 10E9,
the 3rd LED should light. Continue
down the line of resistors to test all
the ranges.
Figure 7. Calibration of the Micro
Meg
C. Continue this process with each
consecutive resistor, checking to
make sure the appropriate LEDs
are illuminated. If all resistors check
properly, the unit’s calibration is
verified.
Adjustment
Unauthorized servicing or
modifications to the Micro Meg will
void the product warranty. Servicing
should only be performed by the
factory. See warranty section for
repair charges.
Resistor
Electrode
Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: 00 44 (0) 1892-665313, Fax: 00 44 (0) 1892-668838 • Internet:
PPE-5046.E
Page 3 of 3
© 2011 CHARLESWATER LTD.
Limited Warranty
Charleswater expressly warrants that
for a period of one (1) year from the
date of purchase, Charleswater Micro
Megs will be free of defects in material
(parts). Within the warranty period,
the material will be tested, repaired
or replaced at Charleswater’s option,
free of charge. Call Customer Service
at 00 44 (0) 1892-665313 for a Return
Material Authorisation (RMA) and for
proper shipping instructions and address.
You should include a copy of your
original packing slip, invoice, or other
proof of purchase date. Any unit under
warranty should be shipped prepaid
to the Charleswater factory. Warranty
replacements will take approximately two
weeks.
Warranty Exclusions
THE FOREGOING EXPRESS
WARRANTY IS MADE IN LIEU OF ALL
OTHER PRODUCT WARRANTIES,
EXPRESSED AND IMPLIED,
INCLUDING MERCHANTABILITY
AND FITNESS FOR A PARTICULAR
PURPOSE WHICH ARE
SPECIFICALLY DISCLAIMED. The
express warranty will not apply to
defects or damage due to accidents,
neglect, misuse, alterations, operator
error, or failure to properly maintain,
clean or repair products.
Limit of Liability
In no event will Charleswater or any
seller be responsible or liable for
any inury, loss or damage, direct or
consequential, arising out of the use
of or the inability to use the product.
Before using, users shall determine
the suitability of the product for their
intended use, and users assume all risk
and liability whatsoever in connection
therewith.
LED Value Resistance Value
10E10 Green < 5 x 10E10 ohms
10E9 Green < 1 x 10E10 ohms
10E8 Green < 1 x 10E9 ohms
10E7 Green < 1 x 10E8 ohms
10E6 Yellow < 1 x 10E7 ohms
10E5 Yellow < 1 x 10E6 ohms
