5 Commonwealth Ave
Woburn, MA 01801
TestEquipmentDepot.com
Amblyonix
2000 Series
Kilovolt Meters
USER MANUAL
MODEL 2050
MODEL 2100
MODEL 2200
2000 Series User Manual
Dear Customer,
Thank you for purchasing one of our AC/DC Kilovoltmeters. Please
read this manual in detail prior to first use, as it will acquaint
you with the product and help you to use it skillfully.
Our goal is to continuously improve our products, so there may be slight differences
between the product you purchased and its original instruction manual. If
changes in this manual occur, you will find them in the appendix. If you have
questions or would like to discuss a unique testing application, please contact us.
This product is covered by a one-year limited warranty from the date
of shipment. If it is found to be defective due to parts or workmanship
during the warranty period, we will repair it free of charge.
Table of Contents
Definition of Terms •••••••••••••••••••••••••••••••4
Safety Requirements •••••••••••••••••••••••••••••••4
To avoid fire hazards or personal injury •••••••••••••••••••••••• 5
Grounding •••••••••••••••••••••••••••••••••••••• 5
Product Introduction •••••••••••••••••••••••••••••••6
Features •••••••••••••••••••••••••••••••••••••6
Should this product require repair either in or out
of warranty please return it to us at:
Please visit our website for technical updates and news concerning this and
other products available in our continuously expanding product offering.
Specifications ••••••••••••••••••••••••••••••••••7
Theory of Operation •••••••••••••••••••••••••••••••9
Panel Layout •••••••••••••••••••••••••••••••••• 10
High Voltage Divider
Figure 2 •••••••••••••••••••••••••••••••••••••••10
Low Voltage Meter Display ••••••••••••••••••••••••••• 11
Figure 3 •••••••••••••••••••••••••••••••••••••••11
Before You Test •••••••••••••••••••••••••••••••• 12
Operating Instructions ••••••••••••••••••••••••••••• 12
Wiring Diagram •••••••••••••••••••••••••••••••• 13
Figure 4 •••••••••••••••••••••••••••••••••••••••13
Power frequency AC High Voltage measurement ••••••••••••••••••••13
DC High Voltage measurement ••••••••••••••••••••••••••••14
Changing the Battery ••••••••••••••••••••••••••••• 14
Troubleshooting Guide ••••••••••••••••••••••••••••• 15
•••••••••••••••••••••••••••••• 10
3
2000 Series User Manual
This product is designed to measure very high AC and DC voltages. Only properly
trained personnel should operate this instrument. Prior to first use please read
this manual entirely. Familiarize yourself with all aspects of this products’ features
and functions. Always use best testing practices when using this instrument.
Definition of Terms
Warning: Indicates that death or severe personal injury may result
if proper precautions are not taken into consideration.
Caution: Indicates that property damage may result if proper
precautions are not taken into consideration.
This product is designed to measure very high AC and DC voltages. Only properly
trained personnel should operate this instrument. Prior to first use please read this
manual entirely. Familiarize yourself with all aspects of this products’ features
and functions. Always use best testing practices when using this instrument.
Safety Requirements
Please read the following safety precautions carefully to avoid the risk of
personal injury, and to prevent damage from occurring to this instrument and/
or other devices that are connected to it. To avoid possible danger to equipment
or personnel, never use this product outside of the scope of its intended use.
If this product should appear to malfunction, never attempt to perform
repairs yourself. Only qualified technicians that are completely familiar
with every aspect of its operation should perform repairs.
To avoid fire hazards or personal injury
• In case of emergency or if a suspected issue occurs,
always turn off the high voltage first.
eep unqualified and/or unauthorized personnel away from the testing area.
• K
ays use the proper interconnecting and ground cables.
• Alw
ver touch the energized surfaces and/or output of this device during a test.
• Ne
• Always use this product by connecting and disconnecting it properly to
the source being measured. Never connect or disconnect the high voltage
connections, or any of the other test connections during a test.
• After testing, always turn off the applied voltage first.
Grounding
• The 2000 series of AC/DC Kilovoltmeters are grounded through the
dedicated ground terminal located at the base of the High Voltage stack.
To prevent electric shock, good testing practice dictates that the case
ground connection must be connected to a good earth ground. Before
making any other connections from this device to the voltage source being
measured, please ensure that your Kilovoltmeter is properly grounded.
• Do not operate this product when its co
void coming in contact with the high-voltage connections or
• A
electrified surfaces during or after a test until the Kilovoltmeter
and the voltage source has been fully de-energized.
• Do not operate this Kilo
operation, stop immediately. Contact our repair department for technical assistance.
• Do not operate in wet/damp conditions. Do not operate in explosive
atmospheres. Ensure that this Kilovoltmeter is clean and dry during use.
voltmeter if you suspect faulty operation. If you suspect faulty
vers or panels have been removed.
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2000 Series User Manual
Product Introduction
The 2000 Series of AC/DC Kilovoltmeters are perfectly suited for high-voltage
measurement. They are used in a wide variety of applications that include
semiconductor manufacturing, electronic equipment manufacturing, power utility
testing, and as calibration laboratory standards. These devices are composed of a highvoltage divider and a low-voltage meter. The two parts are connected to each other by a
coaxial support cable. The high voltage section must always be grounded before use.
Specifications
Note: Some specifications are common, others are model specific.
Range: Model 2050: (0 to 50kVAC/DC), Model 2100: (0-
100kVAC/DC), Model 2200: (0-200kVAC/DC)
Input Impedance: Model 2050: (600MΩ), Model 2100: (1.2GΩ), Model 2200: (2.4GΩ)
Divider Ratio: 1000:1
AC Measurement: True RMS
Features
These devices use high-voltage thin-film capacitors and precision glass
resistors to produce a voltage divider with very-high input impedance, and
low current/power consumption. The hand selection of these components
improves the accuracy and stability of measured readings.
The signal processing section of these instruments employ high performance, high
impedance operational amplifiers and state-of-the-art dual-slope A/D sampling
techniques. The meter section uses a 4.5 digit liquid crystal display with a maximum
resolution of up to 0.001kV. These features make the 2000 series of Kilovoltmeters
a suitable replacement for electrostatic voltmeters in many applications.
The aluminum arc suppression sphere effectively improves the high-voltage field
distribution, prevents partial discharge, and improves the anti-jamming ability of
the test results. They are also very well shielded from external interference. The
low-voltage meter display is fully enclosed in a metal case and is connected to the
high-voltage divider via a shielded coaxial cable, which allows for viewing at a safe
distance. These features create a Kilovoltmeter with very high stability and linearity.
A very important feature of this series of Kilovoltmeters is the construction
of their High Voltage sections. Strong considerations have been made
to minimize internal partial discharge. They contain no oil.
The entire instrument is housed in an aluminum alloy case and is
easy to assemble and disassemble. They are small in volume, lightweight, and are convenient to store, carry, and use.
Accuracy: AC 1.0% rdg, DC 0.5% rdg
Coaxial Cable Length: Models 2050 and 2100: 9ft 9inches, Model 2200: 13ft
Operating Conditions: 32° to 104°F @ ≤85% RH
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2000 Series User Manual
Theory of Operation
These dividers use a resistance-capacitance voltage division method for testing
high AC and DC voltages as depicted schematically in figure 1. The left side of
the circuit is the high voltage divider and is composed of impedances Z1 and
Z2. The high voltage signal (Ui) enters the circuit through the equipotential arcsuppression sphere and exits the divider as the output signal (Uo). The left side
of the circuit is the low-voltage meter display circuit where Uo is processed. In
this circuit the signal is rectified and filtered before it is amplified and displayed.
The relationship between Ui and Uo can be expressed as shown in formula 1.
Uo =
Ui
Z
1Z
Z
1
2
2
Before You Test
Before performing any test, always make sure that your Kilovoltmeter is well
grounded. Ensuring that this device is properly grounded is the first step in creating
a safe testing environment. As this device is designed to be connected to, and
then measure very high voltages, make certain that enough space is available to
safely perform high voltage testing. When setting up to perform a test, be certain
that your test set-up allows you to safety and quickly shut of the high voltage test
signal if something unexpected occurs. This would include but not be limited to:
• Poor connections discovered after a test is under way.
• Unauthorized personnel entering the test area.
• Displa
• The unanticipated sound of High-Voltage arcing.
Remove the high voltage divider and meter from the carrying case. Without
making any connections to the meter, turn it ON and observe that the
display is activated. If there is no display, or if a low battery indication
is observed, replace the battery before performing any test.
yed readings that do not appear to be correct.
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2000 Series User Manual
Panel Layout
This product is composed of a high voltage divider and a low voltage meter
display unit with selectable ranges and voltage measurement modes.
High Voltage Divider
Figure 2
1 Equipotential arc suppression sphere
2 Insulated divider cylinder
3 Ground terminal
4 Signal output terminal
5 Divider base
1
2
Low Voltage Meter Display
Figure 3
1 Liquid Crystal Display
2 Signal Input
3 Power Switch
4 AC/DC Selection Switch
5 Range Selector Switch
1
3
5
4
2 3
5
4
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2000 Series User Manual
Operating Instructions
Connect the Kilovoltmeter as shown in Figure 4. Connect the High Voltage Divider to
an established, known ground first. Next, connect the high voltage divider to the meter
display via the supplied coaxial cable. Lastly, connect the high voltage divider to the
device under test. When connecting to the Arc-suppression equipotential sphere make
sure that the High voltage cable is physically elevated, and is not in close proximity
to the ground. It is best if this connection is made with the cable descending from
directly above and over the divider. When making connections to the device under test
make certain that the low side of the output test signal is also connected to the high
voltage divider’s ground terminal. This is EXTREMELY important and is the most often
overlooked and potentially DANGEROUS error when making connections to the divider.
After all connections have been made, good testing practice dictates that connections
be inspected and verified by a qualified individual, other than the individual that
created the test set up. Having an observer inspect the test set up greatly enhances
the overall safety of the test site. Remember, the life you save may be your own.
Wiring Diagram
Figure 4
1 High voltage connection
Ear
2
th ground cable
Coaxial interconnection cable
3
2
1
3
Power frequency AC High Voltage measurement
After connection and inspection, turn the POWER SWITCH on the meter display box
to the ON position. Move the AC/DC FUNCTION SWITCH to the AC position, and the
RANGE SWITCH to the HIGH range. Move to a safe distance from the proximity of the
high voltage equipment and connections before engaging the test signal and position
yourself (outside of the test area) so that you can clearly view the test set up and
the readings on the METER DISPLAY. If the measured voltage is below 20kV, use the
LOW voltage range to obtain the most accurate readings with the best resolution.
After the completion of the test, turn the high voltage source off first, and observe
the meter display as it returns to zero before entering the test site. You may
notice that when measuring AC voltage, the meter display will slowly trend
down toward zero after the voltage source has been de-energized. Allow
the meter to reach zero before advancing toward the test site.
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2000 Series User Manual
DC High Voltage measurement
After connection and inspection, turn the POWER SWITCH on the meter display box
to the ON position. Move the AC/DC FUNCTION SWITCH to the DC position, and the
RANGE SWITCH to the HIGH range. Move to a safe distance from the proximity of the
high voltage equipment and connections before engaging the test signal and position
yourself (outside of the test area) so that you can clearly view the test set up and
the readings on the METER DISPLAY. If the measured voltage is below 20kV, use the
LOW voltage range to obtain the most accurate readings with the best resolution.
After the completion of the test, turn the high voltage source off first, and
observe the meter display as it returns to zero before entering the test site. Next,
physically ground the high voltage divider to remove any residual charge that
may be stored in the capacitive elements of the divider circuit. Do not assume
that because the meter has returned to zero that there is no charge present.
Changing the Battery
If the Power Switch on the Meter Display is turned on and the Meter Display
does not activate or displays a low battery indication, the battery needs
to be replaced. To replace the battery, complete the following steps:
1 Turn the Power Switch to the OFF position.
Troubleshooting Guide
Problem Solution
No display on Power Up Replace the battery
Test results are erratic or fluctuate
There is a significant sound
of electrical discharge.
Check the ground/ground connections.
Check cables for damage.
Check to see if the divider is damp.
Ensure that it is clean and dry
2
3
4 After replacing the battery reassemble the meter and tighten
ve the four screws located on the front corners of the
Remo
meter’s front panel and remove the front panel.
ve the screw on the battery box, open the battery
Remo
box cover, and replace the 9V battery.
all screws before using the divider to perform any tests.
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