USER GUIDE TB-9017
Analog Surface Resistance Megohmmeter Kit
Operation and Maintenance
Made in the
United States of America
Figure 1. SCS
701
Analog Surface Resistance
Megohmmeter Kit.
Description
1.
Main Selector Switch: The main function selector
switch allows the selection of desired test function.
2.
TEST Button: This button engages the Tester and
activates the test function selected.
3.
OHMS Scale: This scale is used in conjunction
with the SURFACE TEST functions to indicate the
amount of resistance measured.
4.
CONTINUITY Scale: This scale indicates the total
resistance of the test setup (meter, leads, weights,
and calibration plate) in the CONTINUITY TEST
function.
5.
BATTERY Scale: This scale indicates the charge
level of the main battery of the Tester in the
BATTERY TEST function by verifying the open
circuit output test voltage.
6.
Test Jacks: These jacks are used to connect the
Tester to the test leads.
7.
Mechanical Zero Adjust: This control is used to zero
the pointer.
The 701 Analog Surface Resistance Megohmmeter Kit
includes a hand-held megohmmeter and accessories.
The kit has been specifically designed for evaluating
the resistive characteristics of static control surface
materials and testing installed surfaces as specified in
ESD Association Standards.
The Tester has four test functions which allow the user
to measure the resistance of a static control surface
at either of two test voltages, verify proper Tester
performance, and check the electrical continuity of the
test set-up.
Operating Instructions
Warning:
• Turn off the Tester before connecting or
disconnecting test leads, or before moving test
weights.
•
Do not use this Tester with any accessories not
specifically designed to be used with this product.
•
Do not use this Tester to measure live circuits.
Caution:
The test weights included in this kit are
heavy, exercise care in handling. Note: The following
procedures should be followed each time the Tester is
used.
Battery Test:
Place the Tester on a table top or other
stable surface. Set the main selector switch to BATTERY
TEST. Press TEST and hold for 15 seconds. The pointer
should come to rest in the green area of the BATTERY
scale. If the pointer is in the red area to the left of
100V, replace the battery and retest. If the pointer is in
the red area to the right of 100V, the tester may need
recalibration.
Figure 2. SCS
701
Analog Surface Resistance
Megohmmeter Kit, controls, connectors and indicators.
Controls, Connectors, & Indicators
Before attempting any operation of the Tester, become
familiar with each control. A thorough understanding of
how the Tester operates will help avoid mistakes and
prolong its useful life.
Figure 3. Analog Surface Resistance Megohmmeter Kit,
continuity test.
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Employee Owned
Continuity Test:
Place the Tester on a table top or
other stable surface and attach the leads as shown in
Figure . Place the test weights on the calibration plate
or other bare metal surface and plug in the test leads.
Set the main selector switch to CONTINUITY TEST.
Press TEST. The pointer should come to rest in the
green section of the CONTINUITY scale. If not, the
test leads may be defective or the weights may require
maintenance or cleaning.
Surface Test (Resistance Measurement):
Refer
to the two following sections to determine which
measurement(s) should be used for your application.
Place the Tester on a table top or other stable surface
and attach the leads as shown in the appropriate sketch
figures 5-1 through 5-5. Set the Main Selector Switch
to the desired SURFACE TEST voltage. Place the test
weight(s) on the surface to be tested and connect the
test leads. Press TEST for 15 seconds and then read the
resistance from the OHMS scale. After all readings have
been completed, return the Main Selector Switch to the
OFF position.
This test involves measurement of the total resistance
from the static control surface through the conductor or
ground cord to the ESD GROUND (ESDG), verifying the
static control system is functioning correctly.
Note: ESD-S4.1 suggests that a static control surface
that measures in the range of 1 x 10
6
ohms to 1 x 10
9
ohms.
Figure 4. Periodic Preformace Tests of Installed
Surfaces.
The following procedures should be followed when
testing installed static control surfaces:
A. Complete BATTERY TEST and CONTINUITY TEST.
B. Set the SCS 701 Analog Surface Resistance
Megohmmeter Kit on a table top or other stable
surface and place a test weight at the desired test
point as shown in Figure 5. Connect the test leads
to the meter using the right angle banana plugs at
the meter. Then connect one of the test leads to the
test weight and the other to the ESD GROUND using
one of the supplied clips.
C. Test the static control surface using the 100 volts
SURFACE TEST. Press the TEST button for 15
seconds, allowing the pointer to stabilize; record the
readings for each test point. If the reading is below
1 x 10
6
ohms, check the static control surface for an
alternate path to ground; correct and retest. If some or
all the readings are above 1x10
9
ohms, the static
control surface may be dirty. Clean the surface using
the manufacturer’s recommended cleaning procedure.
If the resistance reading is “infinite,” there is an
interruption (open) in the ground connection; repair
and retest.
Resistance Measurement of Static
Control Work Surfaces
This section provides a summary of the types of surface
measurements specified and described by ESD-S4.1.
Measurements are performed for three reasons:
1. Periodic performance testing of installed static
control work surfaces.
2.
Qualification of installed static control work surfaces.
3. Evaluation of static control work surface materials.
Note: The following paragraphs are offered as
a condensed summary of the test methods and
procedures outlined in the EOS/ESD standard. For
complete details, refer to the standard.
Test Description
1. Periodic Performance Testing Of Installed Static
Control Surfaces: (Measurement of resistance from
the top of an installed surface to ESD GROUND
(RTS-ESDG) at ambient temperature and humidity).
Note: ESD GROUND is the point at which the ground
cord or other grounding conductor from the static
control surface is connected. The ground point may be
an electrical ground, building ground, or other suitable
ground. If you have questions concerning the correct
ground, refer to ANSI/ESD STANDARD S6.1 and/or
contact a qualified electrician.
This Resistance-to-Ground test verifies the surface
is working correctly and will drain a static charge in a
reasonable time.
Figure 5. Qualification Tests of Installed Surfaces.
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2.
Qualification of Installed Static Control Surfaces
[Measurement of resistance of the top surface to
the groundable point of the static control surface
(RTS-GP)]. GROUNDABLE POINT is the point
at which the grounding conductor is connected
to the static control surface; the GROUNDABLE
POINT is most commonly a snap (mats), a bolt
(laminate), or a strip of conductive foil tape (flooring).
This QUALIFICATION measurement is similar
to those described in the test description section
and is used to verify the correct installation of the
GROUNDABLE POINT by the manufacturer or by
the user. While the test procedure is the same, the
test setup is slightly different; see Figure 5.
3.
Evaluation of Static Control Materials:
[Measurement of the resistance between two points
on top of a static control surface (RTS-TS), and the
resistance between a point on the surface and the
groundable point (RTS-GP)] Material measurements
are done to determine the intrinsic electrical
properties of static control work surface materials.
Note:
Values obtained by these tests may not reflect
how a material will perform when installed as a static
control surface.
Material evaluations are typically done at two
humidities (12% RH and 50% RH) to determine
whether the electrical properties of the material
are humidity-dependent. If the low humidity test
results are borderline or not within the expected
ranges, caution should be exercised when using
such materials in winter months or in dry conditions.
To assure test accuracy, a minimum of six samples
should be tested.
The test procedure is as follows:
A. Prepare a minimum of six samples of each material
to be tested as shown in Figure 6.
B. Clean samples per manufacturers recommended
cleaning procedures. Condition samples at 73°F
(23° C) and 50% RH for 48-72 hours.
Note:
Samples must be maintained at the appropriate
humidity level throughout the test procedures.
C. Complete BATTERY TEST and CONTINUITY TEST.
D. Surface-to-Groundable Point Test: Test samples
per Figure 7, using both the 100 volts and 10 volts
SURFACE TEST ranges at 50% RH and record the
values as (RTS-GP).
Figure 6. Material Evaluation Sample Configuration.
Figure 7. Material Evaluation Surface to Groundable
Point Test.
Procedure:
Place the SCS 701 Analog Surface Resis-
tance Megohmmeter Kit on a table top or other stable
surface. Connect the test leads to the Tester by means
of the right angle banana plugs. Connect the other end
of one of the leads to one of the test weights and place
the weight on the surface to be tested. Use one of the
supplied clips to connect the other lead to the ground-
able point on the static control surface. Depress TEST
button for 15 seconds and then record the reading.
E. Surface-to-surface Test: Test samples as shown in
Figure 8 use both test weights and repeat the same
test procedure used to determine (RTS-GP).
F. Repeat A through E after conditioning samples at
73°F (23°C) and 12% RH. Use the same test points
and record the values.
STATIC CONTROL SURFACE GROUNDABLE POINTS
10
10
10
10
9
8
10
7
OHMS
10
6
10
11
10
100M 10M
1G
10G
100G
100M 10M
1M
5
0
1M
100K
FAIL
100K
10K
PA
100V
BATTE RY
SS
0
0
CONTINUITY
TAUT
BAN D
SUSPENSION
TO TEST W EIGHT AT TEST
POINT A & B
BA TTE RY
TEST
CONTINUITY
TEST
TEST
OF F
10V
SURF AC E
TEST
100V
READ MA NU AL BEFORE US
E
Figure 8. Material Evaluation Surface to Surface Test.
SCS
- 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website:
StaticControl.com
TB-9017
Page 3 of 6
© 2015 DESCO INDUSTRIES, INC.
Employee Owned
Resistance Measurement of Static Control Flooring
This section provides a summary of installed or applied
floor material measurements specified and described by
ESD-S7.1.
Note:
The following paragraphs are offered as a co
densed summary of the test methods and procedures
outlined in the EOS/ESD standard. For complete details,
refer to the standard.
PERIODIC PERFORMANCE TESTING OF INSTALLED
OR APPLIED FLOORING MATERIALS
(Measurement of resistance from the surface of an
installed floor to GROUNDABLE POINT at ambient
temperature and humidity).
Note: GROUNDABLE POINT is a point on the floor
material that is intended to accommodate an electrical
connection from the floor material to an appropriate
electrical ground. The ground point may be an electrical
ground, building ground, or other suitable ground. If you
have questions concerning the correct ground, refer to
EOS/ESD Standard 6.0 and/or contact a qualified
electrician.
The Resistance-to-Ground test verifies the surface is
working correctly and will drain a static charge in a
reasonable time. This test involves measurement of
the total resistance from the static control surface
through the conductor or ground cord to the ESD
GROUND (ESDG), verifying the static control system is
functioning correctly. Note: ESD 7.1 is designed to
measure floor materials with resistances of 2.5 x 10
4
to
1.0 x 10
11
ohms.
The following procedures should be followed when
testing installed static control floor mats or flooring
surfaces.
Test Procedure for Resistance to Ground
A. Complete BATTERY TEST and CONTINUITY TEST.
B. Before testing new floor mats or newly installed
floors, clean mats/floors per manufacturer’s
recommendations. For testing of floor finishes or
monitoring of existing floor materials, test in an as-is
condition.
C. Perform tests at ambient humidity.
D. Place the SCS 701 Analog Surface Resistance
Megohmmeter Kit and test weight at the desired test
location.
E. Connect one lead of the meter to ground with
supplied clip and the other lead to the test weight.
F. Set meter to 100V. Place test weight on the surface
of the material being tested.
G. Push test button and record the resistance after the
measurement has stabilized or after 15 seconds.
Release test button.
H. Repeat the procedure placing the test weight on the
surface at different locations.
I.
Perform a minimum of five tests per contiguous floor
surface material or a minimum of five tests per 5,000
square feet (464.5 m2) of floor material, whichever is
greater. A minimum of three of the five tests should
be conducted in those areas that are subject to wear
or have chemical or water spillage or are visibly dirty.
Test Procedure for Resistance Point to Point
A. Complete BATTERY TEST and CONTINUITY TEST.
If required clean electrodes as described in Test
Weight Cleaning section below.
B. Before testing new floor mats or newly installed
floors, clean mats/floors per manufacturer’s recom-
mendations. For testing of floor finishes or monitor-
ing of existing floor materials, test in an as-is condi-
tion.
C. Perform tests at ambient humidity.
D. Place the Tester and test weight at the desired test
location.
E. Connect test leads of the meter to the test weights.
F. Set meter to 100V. Place test weights three feet
apart on the surface of the material being tested.
G. Push test button and record the resistance after the
measurement has stabilized or after 15 seconds.
Release test button.
H. Repeat the procedure placing the test weights three
feet apart on the surface at different locations.
I. Perform a minimum of five tests per contiguous floor
surface material or a minimum of five tests per 5,000
square feet (464.5 m2) of floor material, whichever is
greater. A minimum of three of the five tests should
be conducted in those areas that are subject to wear
or have chemical or water spillage or are visibly dirty.
Maintenance
Caution:
Batteries are intended for use in applications
subject to replacement only by a trained service
technician. Use only non-rechargeable batteries.
Battery Replacement
Figure 9. Battery Replacement.
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Before attempting to replace battery, place main selector
switch in the OFF position.
The circuitry enclosed in the SCS 701 Analog Surface
Resistance Megohmmeter Kit produces high voltages.
Make sure that the main selector switch is in the OFF
position before removing the back cover.
A. To open the back cover, remove the screw located in
the center of the back cover.
B. The batteries are held in place by a metal bracket at
the top of the Tester. To release this bracket, turn the
screw located in the center of the bracket counter
clockwise until the bracket swings free. The batteries
will now slide out.
C. Install new batteries as shown in Figure 9.
Note:
Improper battery installation will damage this
Tester.
D. Replace bracket and tighten bracket screw. Replace
back cover and cover screw.
Technical Data
The following electrical specifications are valid for
operating temperatures of 65°F (18°C) to 82°F (28°C), at
relative humidity up to 90% for altitudes up to 2000 m,
unless otherwise noted. Pollution degree 2, class 3.
Test
Function
Continuity
10V
100V
Measurement
Range
0 to 10
megohms
Open
Circuit
Voltage
10V ± .7V
Internal
Resistance
500 ohms
2 ohms
2 ohms
(±5% ±2° of arc.)
10
5
ohms to 10
11
10V ± .7V
ohms
10
5
ohms to 10
11
100V ± 7V
ohms
Physical Data
Tester Size
4.6"(H) x 3.3"(W) x 1.7"(D) Weight: 5 lbs. (2.27 Kg)
each
(11.7 x 8.4 x 4.3 cm)
Weight: 11 oz (5.9 kg)
Diameter: 2.7” (6.8 cm)
Height: 5.1" (13.0 cm)
(w/ handle and pad)
Test Weight Cleaning
Caution:
The test probes included in this kit are heavy.
Exercise care in handling. After a period of use, the
conductive rubber pads on the test weights may become
soiled, causing the weight to fail the CONTINUITY TEST.
To clean the surface of the conductive pad, use a 70%
Isopropyl alcohol/water mixture on a clean low-linting
cloth. Allow surface to “air dry” 15 minutes before use.
Zero Adjustment
On occasion, due to handling, vibration, or other causes,
the pointer on the Tester may need adjustment. To zero
the pointer, turn the main selector switch to the OFF
position. Place the Tester on a level stable surface and
turn the mechanical zero adjust screw until the pointer is
over the left most mark on the OHMS scale.
Safety Information
Replacement Parts
Description
Megohmmeter 701
Test Weight (each)
Test Leads (pair)
Insulated “Bulldog” Clip
Non-insulated Alligator Clip
User Guide
Batteries (2)
The following parts are user-replaceable parts:
Part Number
701-M
701-W
701-L
3037
3038
1.5 volt AA Cell,
3.6 volt AA Ceel Lithium
Warning:
• Turn off the Tester before connecting or
disconnecting test leads, or before moving test
weights.
•
Do not use this Tester with any accessories not
specifically designed to be used with this product.
•
Do not use this Tester to measure live circuits.
•
The circuitry enclosed in the SCS 701 Analog
Surface Resistance Megohmmeter Kit produces high
voltages. Make sure that the main selector switch is
in the OFF position before removing the back cover.
Caution:
•
The test weights included in this kit are heavy.
Exercise care in handling.
• Improper battery installation will damage this Tester.
• Tester to be used indoors only.
To reduce the risks associated with environmental
contamination from the device along with the Lithium
and Akaline battery:
•
At the end of service life, dispose of the charge
analyzer and batteries in accordance with federal,
state and local requirements.
*Recommended Batteries: Model TL-5903 TADIRAN,
ER6 Maxell, Saft LS 14500, Zeus ER14505
SCS
- 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website:
StaticControl.com
TB-9017
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© 2015 DESCO INDUSTRIES, INC.
Employee Owned
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