Monroe Electronics Resistivity Meter - model 291 User Manual

Monroe Electronics Measuring instruments

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Resistivity Meter Model 291
P/N 0910310

The resistivity Meter Model 291 measures both surface resistivity and resistance to ground, allowing simple
repeatable measurements of conductive, static dissipative and insulative surfaces.

Specifications:

Range:

10

3

to 10

12



Accuracy::

 ½ decade on a logarithmic scale

Test Voltage:

Test Voltage

Range

Standard

10 V

<10

3

– 10

5

IEC 61340-4-1

100 V

<10

6

– 10

12

IEC 61340-4-1

Probes:

Internal parallel probe
Jacks for external probes (internal probes are switched off when using external
probes.)

Power Supply:

Battery operated with 9V alkaline battery
Complies with CE

Checking surface resistivity (

)

Hold the meter away from any surface and press the test button, the insulative red LED should light.
Place the meter onto any surface that requires testing, again press the test button and hold. The LED
that illuminates constantly is the decade measured.

<

< 1 k

Green LED

10

3

1 k

Green LED

10

4

10 k

Green LED

10

5

100k

Green LED

10

6

1 M

Yellow LED

10

7

10 M

Yellow LED

10

8

100 M

Yellow LED

10

9

1 G

Yellow LED

10

10

10 G

Yellow LED

10

11

100 G

Yellow LED

10

12

1 T

Red LED

>

insulative

Red LED

green = conductive

yellow = dissipative

red = insulative

Checking resistance to ground (

): When one of the sockets of the external probes is grounded the

measured decade it the resistance to ground.

100 Housel Ave

 PO Box 535 Lyndonville NY 14098 1-800-821-6001 585-765-2254  fax: 585-765-9330 monroe-electronics.com

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