Megger ODEN AT User manual

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User’s Manual
Art No. ZP-BH02E Doc. BH0224TE V09a 2018
ODEN AT
High Current System

ODEN AT
High Current System
NOTICE OF COPYRIGHT & PROPRIETARY RIGHTS
© 2013-2017, Megger Sweden AB. All rights reserved.
The contents of this manual are the property of Megger Sweden AB. No part of this work may be reproduced or transmitted in any form or
by any means, except as permitted in written license agreement with Megger Sweden AB. Megger Sweden AB has made every reasonable
attempt to ensure the completeness and accuracy of this document. However, the information contained in this manual is subject to change
without notice, and does not represent a commitment on the part of Megger Sweden AB. Any attached hardware schematics and technical
descriptions, or software listings that disclose source code, are for informational purposes only. Reproduction in whole or in part to create
working hardware or software for other than Megger Sweden AB products is strictly prohibited, except as permitted by written license
agreement with Megger Sweden AB.
TRADEMARK NOTICES
Megger® and Programma® are trademarks registered in the U.S. and other countries. All other brand and product names mentioned in this
document are trademarks or registered trademarks of their respective companies.
Megger Sweden AB is certified according to ISO 9001 and 14001.
User’s Manual
Postal address:
Megger Sweden AB
Box 724
SE-182 17 DANDERYD
SWEDEN
T [phone]
F [phone]
[e-mail]
www.megger.com
Visiting address:
Megger Sweden AB
Rinkebyvägen 19
SE-182 36 DANDERYD
SWEDEN
BH0224TE ZP-BH02E ODEN AT 3

4ODEN AT ZP-BH02E BH0224TE
Contents
1 Safety
............................................................. 6
1.1 General........................................................6
1.2 Precaution level – DANGER ..........................7
1.3 Precaution level – WARNING ........................7
1.4 Precaution level – IMPORTANT .....................8
2 Introduction
........................................................... 10
2.1 General......................................................10
2.2 Fields of application ...................................11
2.3 Reservations...............................................11
3 Control panel
........................................................... 12
3.1 ODEN AT control panel ..............................12
3.2 Side panel..................................................16
4 Display
........................................................... 18
4.1 The display.................................................18
5 Menu options
........................................................... 20
5.1 General......................................................20
5.2 AMMETER, V/A METER and SYSTEM
menu options ..........................................20
5.3 MEMORY and APPLICATION menu
options ...................................................22
6 How to install ODEN AT
........................................................... 24
6.1 Safety ........................................................24
6.2 Loading ODEN AT onto a carriage ................24
6.3 Connecting the test object and the current
units to each other ..................................25
6.4 Series connection (output HIGH I) ..............26
6.5 Parallel connection (output HIGH I) ............27
6.6 Low-current output (output 0-30V/60V).....27
6.7 Connecting current units to the control
unit .........................................................28
6.8 Grounding ODEN AT..................................28
6.9 Connecting ODEN AT to the mains ............29
6.10 Mains power supply.................................29
6.11 Current cables and conductors.................30
6.12 Standard multi-cable sets.........................31
6.13 Multi-cable sets with customised length ..32
6.14 How to arrange the cable sets..................33
6.15 How to arrange bars................................35
6.16 To get equal current from all current units35
6.17 FAQ .........................................................36
7 How to use ODEN AT
........................................................... 38
7.1 General......................................................38
7.2 How to generate current............................38
7.3 Rules of thumb when generating current...39
7.4 Setting the desired current.........................39
7.5 Setting times for limited-time generation
(MAX TIME).............................................40
7.6 Continuous current generation ..................41
7.7 Getting maximum current from ODEN AT ..41
7.8 Improving the resolution of current
settings ...................................................42
7.9 Generating pulse trains..............................42
7.10 Holding (freezing) measured values..........43
7.11 Measuring phase angle and polarity.........43
7.12 Measuring Z, P, R, X, S, Q and power
factor (cos ϕ)...........................................44
7.13 Reading maximum current at an
operation ................................................45
7.14 Measuring operating limits.......................45
7.15 Measuring tripping/operation times .........47
7.16 Instantaneous trip unit measurement.......47
7.17 Selecting ODEN AT configuration and
current cables..........................................48
7.18 How to succeed in selecting a suitable
ODEN AT system......................................49
7.19 Examples .................................................52
Form 1.............................................................55
Form 2.............................................................56
8 Application examples
........................................................... 58
8.1 Testing a low-voltage breaker.....................58
8.2 Testing the ratio of a current transformer ...59
8.3 Measuring the polarity of a current
transformer .............................................60
8.4 Measuring the resistances of circuit
breakers and electrical connections
(micro-ohmmeter testing) ........................61
8.5 Testing a direct acting automatic recloser ...62
8.6 Testing a sectionalizer ................................63
8.7 Testing a ground grid.................................64

BH0224TE ZP-BH02E ODEN AT 5
9 Troubleshooting
........................................................... 66
10 Calibration
........................................................... 68
10.1 General....................................................68
10.2 Calibration of offset.................................68
10.3 Calibration of scale factor, ammeter 1......69
10.4 Scale factor for the I/30-function..............70
10.5 Calibration of scale factor, ammeter 2......70
10.6 Calibration of scale factor, voltmeter ........71
10.7 Resetting to preset (standardized)
calibration values.....................................71
11 Specifications
........................................................... 72
11.1 General....................................................72
11.2 Output specifications for 240 V ODEN AT
systems at 50 Hz .....................................73
11.3 Load curves
ODEN AT systems for 240 V.....................76
11.4 Output specifications for 400 V ODEN AT
systems at 50 Hz .....................................82
11.5 Load curves
ODEN AT systems for 400 V.....................85
11.6 Output specifications for 480 V ODEN AT
systems at 60 Hz .....................................90
11.7 Load curves
ODEN AT systems for 480 V 60 Hz...........93
11.8 Ammeter 1 ..............................................96
11.9 Stop input................................................97
Appendix 1
........................................................... 98
A1.1 Transferring test data to a PC or a printer 98
A1.2 How to connect via Win 7, 8 or 10..........98
A1.3 How to connect via Win 2000/XP using
the Hyper Terminal program ....................99
A1.4 Transfers in ”NORMAL USE”..................100
A1.5 Transfers in applications ”TEST
RECLOSER” and ”SECTIONALIZER” .......101
Appendix 2
......................................................... 102
A2.1 Resistance measurement accuracy .........102
Index ..................................................... 106

6ODEN AT ZP-BH02E BH0224TE
1 SAFETY
1Safety
1.1 General
▪Always follow the local safety regulations that apply to
work with high-voltage equipment.
▪Make certain that all personnel who work with ODEN AT
have been trained in its use and that all applicable safety
precautions are taken.
▪Read and comply with the following instructions as well
as the warnings and instructions on the ODEN AT control
panel.
Symbols on the instrument
Caution, refer to accompanying docu-
ments.
Caution, risk of electric shock.
Protective conductor terminal.
WEEE, Waste Electronic Equipment. Please
utilize your local WEEE collection facilities in
the disposition of this product and otherwise
observe all applicable requirements.
The unit can also be returned to Megger at
any time at no charge for the disposal.
Information duty regarding substances
on REACH article 33, SVHC-list
This product contains a coin cell battery which con-
tains 1,2- dimethoxyethane (CAS 110-71-4) above
0.1% by weight.
Precaution levels
The manual uses three safety flags to indicate differ-
ent levels of danger.
All Danger, Warning and Important notes must be fol-
lowed for your safety. The safety messages will be in
the following formats:
DANGER
Means you may risk possible severe
bodily harm or loss of life and damage
to the test object and/or test equip-
ment.
WARNING
Means you may risk possible bodily harm
and damage to the test object and/or test
equipment.
Important
Means you risk damage to the test object
and/or the test equipment.

BH0224TE ZP-BH02E ODEN AT 7
1 SAFETY
1.2 Precaution level –
DANGER
You must also read and follow the additional safety
precautions in each appropriate section of the manu-
al.
DANGER
1. The voltages and currents that are generated by
ODEN AT can cause serious injury.
2. Do not connect the AMMETER 2 and VOLTME-
TER inputs at the same time.
3. When you are changing the connections make
sure that current not can be generated accident-
ly. Disconnect the mains supply or switch the
miniature breaker F2 to the 0-position.
4. Dangerous voltages can develop at exposed con-
nectors if the equipment malfunctions.
5. The voltage at the output terminals can be
dangerous. Especially when units are connected
in series.
6. Never use a high-current output while simultane-
ously using a low-current output!
7. Making micro-ohmmeter tests on a breaker.
Make certain that the breaker is closed and
grounded on one side before connecting
ODEN AT to the breaker.
8. When testing current transformer. Dangerous
voltages can appear in the secondary circuits if
they are open.
9. A current unit connected to other current units
must also be connected to the control unit.
Otherwise dangerous voltages might appear in
the connector on the control cable, and the cur-
rent unit might be damaged by current flowing
backwards.
10. This equipment can be used only in electrical sys-
tems with single Ground. User must verify before
connecting this unit to power, that High Voltage
Ground and Low Voltage Protective Ground cre-
ate a single protective ground with no measur-
able voltage potential existing between these
ground systems. If a voltage potential is found
between the ground systems please consult local
safety regulations.
1.3 Precaution level –
WARNING
You must also read and follow the additional safety
precautions in each appropriate section of the manual.
WARNING
1. Do not use within measurement categories II, III
and IV.
2. All units (control and current) must be connected
to the same voltage.
3. All current units used must also be connected to
the control unit. Otherwise the current unit might
be damaged.
4. Always use a grounded mains cable to connect
the control unit to the mains. Always ground
ODEN AT using a separate ground cable.
5. The current output terminals and connecting
points can be hot after generation of high cur-
rent.
6. Never switch between the 30 and 60 V settings
when ODEN AT is generating.
7. When loading ODEN AT on a carriage. To prevent
tip-over, the current units must be loaded onto
the carriage from bottom up.
8. The carriage is primarily intended for transporta-
tion but may also be used when testing. The car-
riage must then be secured to prevent tip over. It
should withstand a horizontal force of 250 N (N =
Newton, approx. 56 lbs of force) in any direction
applied anywhere to the equipment.
If securing is not possible stack the units on a flat
surface that can support the load of the units.
Make sure that the stack will withstand a horizon-
tal force of 250 N in any direction applied any-
where to the equipment.
9. The steel brackets mounted on the carriage are
only intended for keeping the ODEN AT units in
place during transportation. They are not dimen-
sioned to carry the weight of a current unit. A
current unit should always rest either on the load-
ing pallet or on top of another current unit.
10. Never try to service ODEN AT yourself. If you open
the casings of the current units or control unit
you may be exposed to dangerously high volt-
ages.

8ODEN AT ZP-BH02E BH0224TE
1 SAFETY
1.4 Precaution level –
IMPORTANT
You must also read and follow the additional Impor-
tant notes in each appropriate section of the manual.
Important
1. After each load sequence it is important to let
ODEN cool down for at least 2 minutes. If the
thermal cut off is activated there must be a cool
down time of at least 30 minutes. Note that the
mains supply shall not be cut off during the cool
down time – the internal fan must be on.
2. Make certain that mains outlet and its fuses and
all cables/wiring have sufficient current-carrying
capacity, i.e. suitable ratings.
3. Never connect ODEN AT to a mains voltage
other than that specified on the data plates
(nameplate) on the control unit and the current
units.
4. Do not connect units that are of different types
to each other. Only connect type S units to type
S units, type H to type H etc.
5. Do not use the instrument for any purpose
other than indicated by the manufacturer.
6. Do not use any accessories/cables not recom-
mended by the manufacturer as they may cause
hazards.
7. Disconnect ODEN AT from the mains voltage:
When not in use
When it is not attended
During electrical storms (lightning)
Before cleaning
8. Clean the ODEN AT with a moist rag. Do not
use liquid or aerosol cleaning agents.
9. Do not spill water or other liquids onto
ODEN AT.
10. If you need to return your ODEN AT, please use
either the original crate or one of equivalent
strength. Otherwise there is risk for transporta-
tion damages.
11. Refer all servicing to Megger authorized person-
nel.

BH0224TE ZP-BH02E ODEN AT 9
2 INTRODUCTION

10 ODEN AT ZP-BH02E BH0224TE
2 INTRODUCTION
2Introduction
2.1 General
ODEN AT is intended for use in high-voltage substa-
tions and industrial environments, for laboratories and
testing purposes. ODEN AT consists of a control unit
equipped with a control panel and can be connected
to one, two or three current units mounted on a car-
riage. All units are portable and easy to assemble and
connect. Assembly and connection are explained in
chapter 6 ”How to install ODEN AT”.
Since ODEN AT can incorporate up to three cur-
rent units, which can be connected to each other in
series or in parallel, AC current can be generated in a
number of current/voltage combinations. ODEN AT is
available in models for 240 V and 400 V mains volt-
ages. There is also a model for operation on 480 V
60 Hz only.
ODEN AT is designed to generate short-duration cur-
rent, and is protected from overheating. Under special
circumstances, ODEN AT can generate up to 21,900
amperes.
The current units come in three models: type S, type
H and type X. Each current unit contains a number of
toroidal transformers whose common secondary side
consists of a bus bar connected to the HIGH I output.
This output can deliver very high currents. For data,
see chapter 11 ”Specifications”.
A current unit of type X has, in addition to its
regular high-current output, a low-current output
(0-30V/60V) consisting of two extra windings that
each can provide 30 V. Using a switch the windings
can be connected either in series or in parallel to the
0-30V/60V output, providing either a 30 V or a 60 V
output. For data, see chapter 11 ”Specifications”.
The control unit controls the current output (genera-
tion) from the current units and is equipped with
sophisticated measurement facilities. When current is
first generated for a load, the control unit can sense
the phase angle and adapt subsequent generation
operations so that they all start at the current’s zero-
cross-over points. This ensures minimized DC offset in
connection with starting.
Current generation
Current can be generated in many ways:
▪Continuously.
▪During a preset maximum time.
▪As long as you press a button.
▪Until an external signal activates the stop input.
▪At a lower current (I/30) to avoid unnecessary heating
of the object being tested while the current is being
adjusted.
▪In pulses (both pulse duration and between-pulse pause
are user-definable).
The measurement section
contains/provides
▪Timer.
▪Digital ammeter (true RMS).
▪An additional channel for measuring a voltage or a
second current.
▪Direct display of the turns ratio of a current transformer.
▪Provisions for measuring phase angle Z, P, R, X, S, Q and
power factor (cos ϕ).
▪Currents and voltages expressed (if so desired) as
percentages of nominal values.
▪Fast-acting hold function. Measured values can be frozen
in response to a signal arriving at the stop input and/or
when the current is interrupted.
In addition to its normal working mode, there are spe-
cial ODEN AT settings supporting the following types
of testing:
▪Microhm measurement (DC resistance is calculated).
▪Testing of direct acting automatic reclosers.
▪Testing of sectionalizers.
▪Even though ODEN AT features outstanding versatility, it is
very easy to use because:
▪You can start generation whenever desired.
▪You can repeat a measurement by simply pressing a
button. It is not necessary to clear the display first.
▪You can save different settings for ODEN AT in ten
different memories.

BH0224TE ZP-BH02E ODEN AT 11
2 INTRODUCTION
2.2 Fields of application
ODEN AT is primarily intended for:
▪Testing of protective relay equipment (primary injection
testing).
▪Testing of breakers with overcurrent tripping.
▪Conducting ratio tests on current transformers.
▪Conducting polarity tests on current transformers.
Other fields of application include:
▪Tests requiring high currents.
▪Measuring the resistance of breakers with normal
operating current.
▪Testing direct-acting automatic reclosers.
▪Testing sectionalizers.
▪Testing ground grids.
2.3 Reservations
When set at maximum current, ODEN AT is designed
only for temporary (short-duration) current genera-
tion. Do not use ODEN AT for long-term generation at
full current. See the product specifications in chapter
11.

12 ODEN AT ZP-BH02E BH0224TE
3 CONTROL PANEL
3Control panel
7
8
❸
❹
6
9
➊❷
5
3.1 ODEN AT control panel
This chapter presents an overview of the ODEN AT
control panel. The control panel is divided into a num-
ber of blocks:
1. TEST CURRENT
2. CURRENT ADJUST
3. VOLTMETER AND A-METER
4. OUTPUT
5. USB
6. STOP INPUT
7. OPERATE
8. MENU
9. DISPLAY
More detailed descriptions of the display and the
menu options appear in chapter 4 ”Display” and
chapter 5 ”Menu options”.
TEST CURRENT block
This block contains a miniature circuit breaker (F2)
connected to the current generation circuitry. It can
be operated manually and used as a disconnector to
prevent unintentional generation.

BH0224TE ZP-BH02E ODEN AT 13
3 CONTROL PANEL
Note The mains ON/OFF switch is on the left-hand
side of the casing. Beside the mains ON/OFF
switch is a fuse (F1) used for the control unit’s
internal power supply.
CURRENT ADJUST block
In this block you set (adjust) the generated current.
The <FINE> knob is used to make fine adjustments.
The <+> or <-> buttons are used to make coarse
adjustments. The step 8 and 9 on the COARSE LED-
scale are used only in combination with current units
of type H.
The I/30 option enables you to make the settings at a
reduced current, only 1/30 of the real test current, see
section 7.3 ”Setting the desired current”. The settings
are approximate and work best on linear loads.
VOLTMETER and A-METER 2 block
In this block you make the connections needed to
measure a voltage or a second current. This is use-
ful when (for example) you want to measure phase
angles, polarity or a the turns ratio of a current trans-
former. You can make your settings using the <V/A
METER> menu option in the MENU block.
An indicator lamp lights up to indicate whether you
have activated the voltmeter or ODEN AT’s ammeter 2
(A-METER 2).
WARNING
Do not connect the AMMETER 2 and
VOLTMETER inputs at the same time.
OUTPUT block
In this block you specify which current output you
are using and how the current units are connected to
each other.
Important
The settings in this block must be made
before current generation starts. Check
carefully to see that what you have speci-
fied is correct - if not, the values present-
ed on the display will be incorrect.
HIGH I Select this if you are using the high-
current output.
0-30/60 V Select this if you are using the low-
current output (0-30/60V) on a current
unit of type X.
PARALLEL Select this if the current units are con-
nected in parallel or if you have only one
current unit connected.
SERIES Select this if the current units are con-
nected in series.
USB block
USB The USB-port is used when you want to transfer
test results from ODEN AT to a PC. See appendix 1.

14 ODEN AT ZP-BH02E BH0224TE
3 CONTROL PANEL
STOP INPUT block
In this block you enter the stop condition. When this
condition is met, the current generation and timer
stops and the measured value can be frozen (held).
Internal detection INT
Hold/Stop takes place when the current is interrupted
by the object being tested.
Note The stop condition for INT is depending of
the configuration of current units and settings
of A-meter 1 and setting of the INT-function.
See section "5.2 AMMETER, V/A METER and
SYSTEM menu options" on page 20 and
section "11.8 Ammeter 1" on page 96
Note Changing the coarse setting during genera-
tion will make the stop input to latch.
Voltage mode
The input responds to application or interrup-
tion of voltage.
Contact mode
The input responds to the opening or closing of
a contact.
The input responds to application of voltage or
the closing of a contact.
The input responds to the interruption of volt-
age or the opening of a contact.
The status lamp adjacent to the connection sockets
lights up:
A] In the voltage mode — if voltage is present.
B] In the contact mode — if the contact is
closed.
When the preset stop condition is met the LATCHED
lamp lights up. Resetting takes place automatically
when you start a new generation or when you press
the <RESET> button in the DISPLAY block.
You can set the stop condition in a number of differ-
ent ways. You can use the following combinations:
ODEN AT is set to respond to the closing of an external
contact.
ODEN AT is set to respond to the opening of an external
contact.
ODEN AT is set to respond to the opening or closing of an
external contact.
ODEN AT is set to respond to the application of a voltage.
ODEN AT is set to respond to the interruption of a voltage.
ODEN AT is set to respond to the application of a voltage or
the interruption of a voltage.

BH0224TE ZP-BH02E ODEN AT 15
3 CONTROL PANEL
OPERATE block
Here you can start and stop current generation.
OPERATE This lamp is lit when current is generated.
Temperature
alarm
This lamp will light up if the temperature
rises too high and ODEN AT risks becoming
overheated
ON+TIME Starts current generation. When generation
starts the timer is instantaneously reset and
restarted.
MOM ON Current generation starts and continues as
long as you press the button.
OFF Stops current generation. Use this button to
turn off current generation.
AUTO OFF Activates the automatic shutoff-function.
ODEN AT will automatically stop generating
current after a specified period of time. Press
the button until the MAX TIME lamp lights
up, and enter the maximum generation time
using the <CHANGE> knob.
This button can also be used to activate the
automatic shutoff when a stop condition is
met. Press the button until the STOP INPUT
lamp lights up, and enter the desired stop
condition in the STOP INPUT block.
MENU block
In this block you can select special functions and
change the settings for the measuring instruments.
Press the button to the desired menu option. Use the
<CHANGE> knob to select a function or alter a value.
Press the <ENTER> button to confirm your choice and/
or proceed to the next level. Press the <ESC> button
to cancel and/or go back to the previous level.
CHANGE Knob used for selecting and stepping in the
menus.
ENTER Press this to confirm a choice. Also used for
initiating data dump via the USB port, see Ap-
pendix 1.
ESC Press this button to cancel or return to the previ-
ous level in a menu. Also used to activate R, Z, X,
ϕ(phase angle), P, S, Q and power factor (cos ϕ)
measurements or to read the maximum current
during an operation.
The different menu options are described in greater
detail in chapter 5 ”Menu options".
AMMETER
In this menu option can you select the range for
ammeter 1 (A-METER 1, measuring the generated cur-
rent), and specify whether the measured values are to
be expressed
▪in amperes
▪as percentages of nominal current
▪as ratios. See section 5.2.
V/A METER
In this menu option can you choose between using
the voltmeter or the ammeter 2 (A-METER 2, meas-
ures a second current), select their ranges and how
the values should be expressed. In this menu option
you can also set the system to measure the turns ratio
of a current transformer. See section 5.2.
SYSTEM
In this menu option can you specify
▪the time unit to be used by the timer
▪the amount of delay for the automatic shutoff in
accordance with the preset stop condition. In addition you
can select the language that will be used in the display
and make the desired entries for calibration. See section
5.2.
MEMORY
This menu option enables you to recall or save settings
for ODEN AT in 10 memories. See section 5.3.
APPLICATION
In this menu option can you set ODEN AT for the fol-
lowing applications:
▪Normal use.
▪Microhm measurement.
▪Testing of a direct acting automatic recloser.
▪Testing of a sectionalizer.

16 ODEN AT ZP-BH02E BH0224TE
3 CONTROL PANEL
▪Generation of a pulse train.
The APPLICATION menu option is described further in
section 5.3. The different applications are described
in detail in chapter 7 ”How to use ODEN AT” and in
chapter 8 ”Application examples”.
DISPLAY block
This block contains the display which presents times,
currents or voltages as well as messages and menus.
Chapter 4 ”Display” describes the display and its
functions in greater detail.
You can change the settings for the timer, the amme-
ters and the voltmeter via the MENU block if you do
not want to use the default settings.
HOLD Pressing this button freezes (holds) the measured
values. When the lamp in the <HOLD> button
glows steadily it indicates that the HOLD function
is active. Freezing takes place:
a) when the stop condition is met
or
b) when generation is shut off, whereupon the
lamp in the <HOLD> button starts to flash.
The frozen value disappears as soon as you start a
new generation or press the <RESET> button.
<RESET> This button is used to clear (reset) the values shown
on the display.
3.2 Side panel
The 240 V model.
The 400 V model.
The 480 V model.
Mains input 240 V AC, 58 A, 50 – 60 Hz
400 V AC, 30 A, 50 – 60 Hz
480 V AC, 30 A, 60 Hz
Ground (earth) connector
Switch 0 / 1 The mains ON/OFF switch.
FI Fuse T1H 500 V, for the control unit’s
internal power supply.

BH0224TE ZP-BH02E ODEN AT 17
4 DISPLAY

18 ODEN AT ZP-BH02E BH0224TE
4 DISPLAY
4.1 The display
▪Presents measured values.
▪Presents ODEN AT´s settings.
▪Guides you by providing helpful messages, warnings and
prompts.
▪Helps you scroll through menu options by displaying
directional indicators.
The display is divided into 4 areas. Normal use:
Time
Ammeter 1 Ammeter 2 /
voltmeter
Example:
1.234 s
750 A 3.123 V
By pressing the ESC key; Z, ϕ (phase angle) & Z, P, R,
X, S, Q, power factor (cos ϕ) or max I1) will appear in
the upper area of the display.
1) Max I is the highest current value that was gener-
ated (minimum time 100 ms) during the injection.
Example:
4.164 mWZ
750 A 3.123 V
”O.F.” (Overflow) in an area means that the value is
too high.
”- - - ” in a field means that it is impossible to present
a value. The reason can be too low measurement
signal or that it is impossible to calculate a value.
If you press <ENTER> the measured values will be
dumped via the USB port, see appendix 1 for details.
Directional indicators
The directional indicators that appear on the dis-
play show which direction you can scroll using the
<CHANGE> knob. There are three types of directional
markers:
You can scroll upwards
You can scroll downwards
You can scroll both up and down
When special applications are
activated
When a special application is activated this is indicated
in the upper right corner.
Example:
Application ”TEST RECLOSER
1.234 s RECL.
750 A
See further the descriptions of the application modes,
chapter 8 ”Application examples”.5 Menu options
4Display

BH0224TE ZP-BH02E ODEN AT 19
5 MENU OPTIONS

20 ODEN AT ZP-BH02E BH0224TE
5 MENU OPTIONS
5Menu options
5.1 General
This chapter explains the menu options available in
the MENU block on the control panel and the settings
that you can make there. All settings appear on the
display.
You can only select a menu option while ODEN AT is
in the OFF state (i.e. not generating).
There are three ways to exit from a menu option:
A] Press the button of the most recently selected
menu option a second time.
B] Press <ON+TIME>
C] Press <RESET>
5.2 AMMETER, V/A METER
and SYSTEM menu options
You can set ODEN AT’s first ammeter (A-METER 1) in
the <AMMETER> menu option. In the <V/A METER>
menu option you can set ODEN AT’s second ammeter
(A-METER 2) and ODEN AT’s voltmeter. In the <SYS-
TEM> menu option you can set the timer, select the
desired language for use on the display, and make
certain other settings. The menu options are described
in detail below.
How to set values
An example of how the display can appear for the
<AMMETER> menu option appears below. The top
line (the menu heading) shows what is to be set. The
second line (right-justified) shows the actual setting.
You can use the <CHANGE>-knob to scroll through
the different menu headings. The directional indica-
tors show the direction or directions in which you can
scroll.
Example:
RANGE 
Auto
You can scroll upwards.
Select the desired menu heading (RANGE for example)
and press <ENTER>. The value will appear between
flashing arrow-heads < >:
RANGE
< Auto >
You can now change the setting (to the low A range
for example) using the <CHANGE> knob.
Press <ENTER> to confirm your choice. You can press
the <ESC> button to leave the field without changing
it or to return to the previous level.