AEMC 6417 User manual

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Clamp-on Ground Resistance Tester Model 6417
Thank you for purchasing an AEMC Clamp-on Ground Resistance Tester.
For best results from your instrument and for your safety, read the enclosed
operating instructions carefully and comply with the precautions for use. These
Measurement Category IV corresponds to measurements taken at the
source of low-voltage installations.
Example: power feeders, counters and protection devices.
Measurement Category III corresponds to measurements on building
installations.
industrial devices.
Measurement Category II corresponds to measurements taken on
circuits directly connected to low-voltage installations.
Example: power supply to domestic electrical appliances and portable
tools.
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Clamp-on Ground Resistance Tester Model 6417
This instrument and its accessories comply with safety standards EN 61010-1,
EN 61010-030, and EN 61010-2-032 for voltages of 600V in Category IV at an
altitude of less than 2000m with a pollution degree of not more than 2.
explosion, and destruction of the instrument and of the installations.
The operator and/or the responsible personnel must carefully read and clearly
understand the various precautions to be taken in use. Sound knowledge
and a keen awareness of electrical hazards are essential when using this
instrument.
may be compromised, thereby endangering you.
Do not use the instrument on networks of which the voltage or category
exceeds those mentioned.
Do not use the instrument if it seems to be damaged, incomplete, or poorly
closed.
Before each use, check the condition of the insulation on housing. Any item
of which the insulation is deteriorated (even partially) must be set aside for
repair or scrapping.
Use personal protection equipment systematically.
All troubleshooting and metrological checks must be performed by competent
and accredited personnel.
Avoid impacts on the measurement head, in particular the air gap.
Keep the surfaces of the air gap clean; even a little dirt can cause the clamp
to malfunction.
All metal objects or wires connected to the electrical system should be
assumed to be lethal until tested. Grounding systems are no exception.
Use extreme caution when using the instrument around energized electrical
equipment.
Never attempt to use the instrument to twist or pry the ground electrode or
ground wire away from the equipment being grounded.
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Clamp-on Ground Resistance Tester Model 6417
1.1 Receiving Your Shipment......................................................................7
1.2 Ordering Information.............................................................................7
1.2.1 Replacement Parts...................................................................7
2.1 Description............................................................................................8
2.2 Features................................................................................................9
2.3 Applications...........................................................................................9
2.4 Display ................................................................................................10
2.5 Control Features.................................................................................12
2.6 Audible Signals ...................................................................................13
2.7 Rotary Switch Functions.....................................................................13
2.8 Button Functions.................................................................................14
4.1 Menu Items.........................................................................................17
4.2 SET-UP Menu Displays ......................................................................17
..................................................................18
4.4 SET-UP Menus ...................................................................................18
4.5 Calibration Loop..................................................................................21
5.1 Inserting the Batteries.........................................................................22
5.2 Setting the Date and Time ..................................................................22
5.3 Display Example.................................................................................23
5.4 Turning the Instrument ON .................................................................23
5.5 Turning Bluetooth ON .........................................................................24
5.6 Turning the Instrument OFF................................................................24
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Clamp-on Ground Resistance Tester Model 6417
5.7 Standard and Advanced Modes..........................................................24
5.8 Memory...............................................................................................25
5.8.1 Memory Capacity....................................................................25
5.8.2 Storing Measurements into Memory.......................................25
5.8.3 Reading Stored Data..............................................................25
5.8.4 Erasing the Memory ...............................................................25
...................................................26
5.8.6 Exporting Data to a PC...........................................................26
5.9 Alarm Management.............................................................................26
5.9.1 Voltage Alarm .........................................................................26
5.9.2 Current Alarm .........................................................................27
5.9.3 Impedance Alarm....................................................................27
5.9.4 No Alarm Detection.................................................................27
5.9.5 Priority of the Alarms ..............................................................28
6.1 Rotary Position +A...........................................................................29
6.1.1 Standard Mode.......................................................................29
6.1.2 Advanced Mode......................................................................30
6.1.3 General Information................................................................31
6.2 Rotary Position (A)..............................................................................33
6.2.1 Making a Measurement..........................................................33
6.3 Rotary Position - (MR) ........................................................................33
6.3.1 Displaying Stored Measurements...........................................33
7.1 Installing DataView®............................................................................36
7.2 Ground Clamp Control Panel..............................................................38
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Clamp-on Ground Resistance Tester Model 6417
9.1 Reference Conditions .........................................................................43
9.2 Electrical .............................................................................................43
9.2.1 Loop Resistance Measurement..............................................43
9.2.2 Loop Inductance Measurement ..............................................44
9.2.3 Contact Voltage (Touch Voltage) ............................................44
9.2.4 Current Measurement.............................................................44
9.2.5 Power Supply .........................................................................45
9.3 Environmental.....................................................................................45
9.4 Mechanical..........................................................................................45
9.5 Safety..................................................................................................46
10.1 Cleaning............................................................................................47
10.2 Battery Replacement ........................................................................47
10.3 Repair and Calibration......................................................................48
10.4 Technical and Sales Assistance........................................................48
10.5 Limited Warranty...............................................................................49
10.6 Warranty Repairs..............................................................................49
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Clamp-on Ground Resistance Tester Model 6417
Upon receiving your shipment, make sure that the contents are consistent with
the packing list. Notify your distributor of any missing items. If the equipment
your distributor at once, giving a detailed description of any damage. Save the
damaged packing container to substantiate your claim.
.......................Cat. #2141.02
Includes a hard carrying case, Bluetooth USB adapter, calibration loop, four 1.5V
AA batteries, quick start guide, and USB stick with DataView® software and user
manual.
Bluetooth USB Adapter Class 2........................................................ Cat. #2126.45
Wrist Strap........................................................................................
Hard Carrying Case.......................................................................... Cat. #2141.50
5 Calibration Loop.......................................................................... Cat. #2141.51
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Clamp-on Ground Resistance Tester Model 6417
The Clamp-on Ground Resistance Tester Model 6417 measures grounding
electrodes and grid resistance without the use of auxiliary rods. Clamp-on ground
resistance testers can be used in multi-grounded systems without disconnecting
the ground system under test. The Model 6417 simply clamps around the
ground conductor or rod and measures the resistance to ground. By performing
grounding connections and bonds. Resistance and continuity of grounding loops
around pads and buildings can also be measured.
The Model 6417 includes a current measurement function. The ground tester’s
circulating in ground loops from 0.2mA to 40A and resistances from 0.01 to
1500 .
Battery life information is displayed at power-up and the Auto Power OFF feature
can be enabled for power management. Additional features include the large
OLED (Organic Light Emitting Diode) display that ensures high readability of
data. The Buzzer and Auto Power OFF features can be disabled at any time.
The Model 6417 is equipped with an alarm function and a data storage function.
In the Alarm mode, the probe will audibly and visually indicate when the reading
is beyond an input set point. You can also have the alarm activate above or
“pass” or “fail” readings are required.
The data storage function logs up to 2000 measurements ( and/or A). This
a later time. The alarm settings and stored data are saved on the ground tester
and remain stored even when the instrument is turned OFF. You can retrieve and
analyze the results at a later time with DataView® software or with an Android app
through the Bluetooth communication port.
Two new features unique to AEMC® are test frequency selection and touch
voltage indication.
The ability to select the test frequency provides more accurate measurements in
inductive environments.
Displaying voltage derived from current and resistance measurements provides
an extra level of safety for the user, indicating a potentially dangerous touch
condition.
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Clamp-on Ground Resistance Tester Model 6417
Simple and fast clamp-on operation - no leads, no auxiliary rods or spacing
requirements
Current measurements from 0.2mA to 40A.
Measurement of loop impedances from 0.01 to 1500 .
The ohmmeter function makes allowance for the presence of inductances
in the loop, making impedance measurements more accurate at low
values.
Contact voltage: The contact voltage is determined by calculating the
product of the loop impedance and leakage current. The value found is an
upper bound on the voltage between the measurement point and earth,
since the impedance taken into account is that of the whole loop.
Touch voltage display
Large multi-function, bright yellow organic light emitting diode display (OLED)
Display in Standard mode (one screen) or Advanced mode (three screens)
Clamping diameter of 1.38" (35mm) accommodating cables up to 1000kcmil
Stores up to 2000 measurements ( and/or A, with time-stamping)
Displays stored measurements on the display or via Bluetooth® to a PC
Measurement hold by the HOLD and AUTO-HOLD functions
Clamp opening made easy by a trigger with a force compensation system
Auto Power OFF function
Rugged Lexan® head and body construction resists breakage
Alarm settings and stored memory information saved during shutdown
NOISE icon and buzzer notify the user to presence of dangerous voltage and
current levels
Designed to EN 61010-1, 600V CAT IV safety standards
Ground electrode system resistance
Bonding/continuity checks
Ground measurements on Railroad signaling systems
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Clamp-on Ground Resistance Tester Model 6417
The Model 6417 is equipped with a 152-segment OLED (organic light-emitting
diode) display. This OLED technology results in a thinner, lighter, sharper, higher
contrast display compared to LCD displays.
Figure 2-1
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Clamp-on Ground Resistance Tester Model 6417
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Clamp-on Ground Resistance Tester Model 6417
Figure 2-2
1. Consists of two individually shielded magnetic cores
2. Safety guard; do not place hands above this guard
3. Opens or closes the jaws
4. :Toggles display backlight ON/OFF
5. MEM: Stores measurements into memory
: Navigates and validates measurement displays
7. : Crisp, clean and bright display
8. Selects measurement functions and instrument
9. HOLD: Freezes last measured value on the display
Turns Bluetooth ON/OFF (when switch is set to MR or )
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Clamp-on Ground Resistance Tester Model 6417
There are four audible signals:
Audible signals can be enabled or disabled in (see § 4.4, menu #2).
The symbol indicates:
This programming is backed-up and retrieved at each reset.
and deactivation of the buzzer.
OFF
A
MR
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Clamp-on Ground Resistance Tester Model 6417
MEM
HOLD
&
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Clamp-on Ground Resistance Tester Model 6417
Typically, a grounded distribution system can be simulated by the basic circuit
shown in Figure 3-1 or an equivalent to the diagram shown in Figure 3-2. If
voltage (V) is applied to any measured grounding electrode Rx through a
following equation:
V
I= Rx + 1
n
i=1
1
Ri
Rx » 1
n
i=1
1
Ri
where, usually
Therefore, V/I = Rx is established. If I is detected and measured with V kept
constant, the measured grounding electrode resistance Rx can be obtained.
constant voltage oscillator. The resulting current is then sensed by a detection
commercial frequency (50/60Hz) and high-frequency noise.
If clamped around any grounding electrode in a multi-grounded
system, the measured value of the electrode under test will be the resistance
of that particular rod in series with the equivalent parallel resistance value that
the rest of the multi-grounded system represents. If an electrical system had
101 grounding electrodes and each had a resistance value of 25 , and it were
clamped around any electrode in the system, the measured value would be 25
in series with the equivalent parallel resistance of the other 100 electrodes or
0.25 . The displayed value would be 25.2 (instrument resolution to 0.1 ).
V/I = 25 + 0.25
Rx = 25.2
grounded system would be higher; therefore the equivalent parallel resistance is
negligible with respect to the rod under test.
I
V
Rx R1R2Rn-1 Rn
Figure 3-1
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Clamp-on Ground Resistance Tester Model 6417
RxR1RnRn-1
Figure 3-2
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Clamp-on Ground Resistance Tester Model 6417
Button Action
Move up in the menu tree.
Move down in the menu tree.
Select the menu displayed or return to the previous menu.
Menu # Indication Function
1CLr
Clr blinks.
recorded data is erased. The meter indicates
MEM 0.
2Snd
Snd blinks.
The Buzzer is enabled when the icon is visible
and disabled when it is masked.
In the and Ameasurement modes, a long
3StOP
StOP blinks.
Auto Power OFF is deactivated when the icon is
visible and activated when it is hidden.
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