701-M 3M, 701-M Datasheet - Page 4
701-M
Manufacturer Part Number
701-M
Description
MEGOHMMETER, FOR 702
Manufacturer
3M
Type
Traffic Sensing Systemr
Specifications of 701-M
Rohs Compliant
NA
Color
Gray sensor body, black sensor cable
Svhc
No SVHC (15-Dec-2010)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
NOTE: ESD-S4. 1 suggests that a static control surface that
measures in the range of 1x10
ESDG is acceptable. HOWEVER, 3M RECOMMENDS THAT A
MORE CONSERVATIVE VALUE OF 1X10
THE HIGHEST ACCEPTABLE RESISTANCE TO ESD GROUND.
A. Complete BATTERY TEST and CONTINUITY TEST.
B. Set the Instrument on a table top or other stable surface
C. Test the static control surface using the 100 volts
2. QUALIFICATION OF INSTALLED STATIC
2”
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 that the
entire static control system is functioning correctly.
The following procedures should be followed when
testing installed static control surfaces.
and place a test weight at the desired test point as shown
in Figure 5-1. 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.
SURFACE TEST. Depress the TEST button for 15
seconds, allowing the pointer to stabilize; record the
readings for each test point. If the reading is below 1x10
ohms, check the static control surface for an alternate
path to ground; correct and retest. If some or all the
readings are above 1x10
may be dirty. Clean the surface using the manufacturer’s
recommended cleaning procedure followed by two
clear water rinses and a rinse with 70% Isopropyl
alcohol. Allow the surface to dry overnight and retest.
If the resistance reading is “infinite,” there is an
interruption (open) in the ground connection; repair
and retest.
CONTROL SURFACES
[Measurement of resistance of the top surface to the
groundable point of the static control surface (R
GROUNDABLE POINT is the point at which the
10
2”
11
TEST
10
10
Figure 5-1: Periodic Performance Tests of Installed Surfaces
CONTINUITY
100G
TEST
10
10G
9
READ MANUAL BEFORE USE
BATTERY
1G
TEST
10
8
100M
100M
10
10M
10M
7
OHMS
OFF
100V
FAIL
1M
STATIC CONTROL SURFACE
BATTERY
10V
1M
100K
100V
GROUNDABLE POINTS
100K
10
SURFACE
6
10K
CONTINUITY
TEST
0
TAUT
SUSPENSION
0
10
BAND
5
0
TO TEST WEIGHT AT TEST
9
POINT A, B, C, D & E
ohms, the static control surface
6
ohms to 1x10
9
OHMS BE USED AS
10
ohms RTS-
TS-GP
)].
6
3
3. EVALUATION OF STATIC CONTROL
NOTE: Values obtained by these tests may not reflect how a
material will perform when installed as a static control surface.
A. Prepare a minimum of six samples of each material
B. Clean samples to be tested with a 70% Isopropyl alcohol
NOTE: Samples must be maintained at the appropriate humidity
level throughout the test procedures.
C. Complete BATTERY TEST and CONTINUITY TEST
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 5-2.
MATERIALS
[Measurement of the resistance between two points on
top of a static control surface (R
between a point on the surface and the groundable point
(R
the intrinsic electrical properties of static control work
surface materials.
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:
to be tested as shown in Figure 5-3.
solution and condition at 73°F (23°C) and 50% RH for
48-72 hours.
10
11
TEST
10
TS-GP
10
CONTINUITY
100G
TEST
10
10G
9
READ MANUAL BEFORE USE
BATTERY
1G
TEST
10
Figure 5-2: Qualification Tests of Installed Surfaces
8
100M
)]: Material measurements are done to determine
100M
10
10M
7
10M
OHMS
OFF
100V
FAIL
1M
STATIC CONTROL SURFACE
BATTERY
10V
1M
100K
100V
GROUNDABLE POINTS
10
100K
SURFACE
10K
CONTINUITY
6
TEST
0
TAUT
SUSPENSION
0
10
BAND
5
0
TO TEST WEIGHT AT TEST
POINT A, B, C, D & E
TS-TS
), and the resistance