Major tech MT290 User manual

MT290
TEST ADAPTER FOR ELECTRIC
VEHICLE CHARGING STATIONS
INSTRUCTION MANUAL

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Contents Page no
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1. ............... ................................................................ Introduction ..... 4
2. Symbols..........................................................................................4
3. Safety Precautions.............................................................................5
3.1. Work Area Safety.......................................................................5
3.2. Electrical Safety.........................................................................5
3.3. Personal Safety.........................................................................5
4 Available Measurements and Product Description..................................6.
5 Before Use........................................................................................6.
5.1. Standard Equipment..................................................................6
5.2. Optional Accessories..................................................................6
.3. 5 Safety Measures........................................................................6
5.4. Appropriate Usage.....................................................................7
6 Description of Warning Marks..............................................................8.
7. Operation Elements and Connectors....................................................9
8. Testing Charging Stations.................................................................10
8.1. P u r p o s e o f t h e T e s t
A d a p t e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
8.2. Connection of the Test Adapter to Charging Station......................11
8.3. Operation of Charging Station to be Tested................................13
8.3.1. PE Pre-Test ....................................................................13
8.3.2. Proximity Pilot (PP) State (Cable Simulation)......................14
8.3.3. Control Pilot (CP) State (Vehicle Simulation).......................14
8.3.4. CP Signal Output Terminals..............................................15
8.3.5. CP Error “E” Simulation...................................................15
8.3.6. PE Error (Earth Fault) Simulation......................................15
8 . 3 . 7 . P h a s e
Indicator...............................................................15
8.3.8. Mains Socket..................................................................15
8.3.9. Measuring Terminals L1, L2, L3, N and PE...........................16
9. Maintenance..................................................................................16
9.1. Cleaning................................................................................16
9.2. Transport and Storage..............................................................16
9.3. Fuse Replacement...................................................................16
10. Specifications.................................................................................17

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1. INTRODUCTION
The MT290 is an extender for interfacing Electric Vehicle Supply Equipment
(EVSE) to test the socket of an installation tester for verification of electrical
safety and function of all single and three phase EV charge points. This easy-
to-use instrument, used in conjunction with the MT390 or similar meter
offers an electrical contractor a universal tool designed to thoroughly test
Mode 3 AC Electric Vehicle charging stations. The adaptor is designed to
simulate the connection of an electric vehicle to an under-test charging
point, with the safety feature of the PE Pre-Test, the PE conductor can be
tested for possible presence of dangerous voltage against earth. A rotary
switch for the Proximity Pilot (PP) state “Cable Simulation” can simulate
various current capabilities of charging cables, while the rotary switch for
Control Pilot (CP) state “Vehicle Simulation” can select and simulate various
charging states. Measurements on live conductors can be undertaken by
either using the front mounted mains socket or the 4mm measuring
terminals of L1, L2, L3, N and PE of the EVSE adaptor. Standard accessories
include the Type 2 and Type 1 plugs complete with a hard carrying case. The
housing of the MT290 IP54 for dust and splash proof water protection.
2. SYMBOLS
CAUTION Refer to the explanation in this manual.
WARNING Hazardous Voltage, Risk electric shock.
The equipment is protected by double insulation or reinforced
insulation.
Earthing (grounding) terminal.
Reference, please pay utmost attention.
Conformity symbol, confirms compliance with the applicable
European directives. The requirements of the Low Voltage
Directive with the relevant regulations Standards are also
fulfilled.
Symbol for marking of electrical and electronic equipment
(WEEE Directive).

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V DC or VA C 1000V DC/AC RMS
mA AC/DC 800mA l000V fast acting fuse
A AC/DC 10A 1000V fast acting fuse (20A for
30 seconds max every 10 minutes)
Frequency, Resistance, capacitance, 1000V DC/AC RMS
Duty Cycle, Diode Test, Continuity
Temperature 1000V DC/AC RMS
Surge Protection: 8kV peak per IEC 61010
Maximum InputFunction
Note: Examples include protected electronic circuits.
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection
to circuits in which measures are taken to limit the transient overvoltages to
an appropriate low level.
OVERVOLTAGE CATEGORY II
Note: Examples include household, office, and laboratory appliances.
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming
equipment to be supplied from the fixed installation.
OVERVOLTAGE CATEGORY III
Note: Examples include switches in a fixed installation and some
equipment for industrial use with a permanent connection to the
fixed installation.
Equipment of OVERVOLTAGE CATEGORY III is equipment in
fixed installations.
OVERVOLTAGE CATEGORY IV
Note: Examples include electricity meters and primary over-
current protection equipment
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin
of the installation.
This meter has been designed for safe use, but must be operated with
caution. The rules listed below must be carefully followed for safe
operation.
NEVER apply voltage or current to the meter that exceeds the specified
maximum:
2.1. Safety Instructions
Input Protection Limits
• This instrument must only be used by suitably trained and competent
persons.
• Read this instruction manual before using the product in order to achieve
maximum performance.
• Keep this manual in a safe place after reading it for future reference
• The user manual contains information and references necessary for safe
operation and maintenance of the adapter.
• Please carefully read the safety information before using the test adapter.
• Failure to follow the warnings and instructions may result in electric shock,
fire, serious bodily injury, or equipment damage.
3.1. Work Area Safety
• Keep your work area clean and well lit.
• Do not operate equipment in explosive atmospheres such as in the
presence of flammable liquids, gases or dust.
• Keep children and bystanders away while operating equipment.
3.2. Electrical Safety
• Do not expose equipment to rain or wet conditions.
• Water entering equipment will increase the risk of electrical shock.
3.3. Personal Safety
• Stay alert, watch what you are doing and use common sense when
operating equipment.
• Do not use equipment while you are tired or under the influence of drugs,
alcohol or medication.
• A lack of attention while operating equipment may result in serious
personal injury.
3. SAFETY PRECAUTIONS
WARNING: Improper use of this meter can cause damage, shock,
injury or death. Read and understand this user manual before operating
the adapter. If the equipment is used in a manner not specified by the
Major Tech, the protection provided by the equipment may be impaired.
Use only accessories that are recommended by the Major Tech for your
equipment. Accessories that may be suitable for one piece of equipment
may become hazardous when used with other equipment.

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• The adapter can test the electrical safety and function test of mode 3
electric vehicle charging equipment (EVSE) with type 2 connector (or
optional type 1 connector).
• PE Pre-Test (potential presence of dangerous voltage at PE. terminal by
mistake)-touch electrode and led lamp.
• Phase indicator (presence of all three phase voltages measured to N) -
three led lamps.
• PP state simulation (NC, 13A, 20A, 32A, 63A) - rotary switch.
• CP state simulation (A, B, C, D) - rotary switch.
• CP error T simulation (cp signal short-circuited to PEI-push button.
• PE error (earth fault stimulation (interruption of PE conductor) - push
button.
• Measurements on live conductors (L1, L2, L3 and n) and on PE conductor -
five 4 mm safety sockets for connection to installation testers.
• Test of cp signal-two 4mm safety sockets for connection to an oscilloscope.
• Mains socket (on backside) to connect an external load for test purposes
only.
5. BEFORE USE
5.1. Standard Equipment
The following equipment and accessories are included in the package, before
using the unit, make sure that all items are included.
• Main Unit x1
• Type 2 Test Cable x1
• Portable Package x1
• Instruction Manual x1
5.2. Optional Accessories
Type 1 Test Cable for EV charging station cable type 1 with fixed cable and
vehicle connector which fits to all versions of the test adapter.
5.3. Safety Measures
• The test adapter has been built and tested in compliance with the valid
safety regulations and left Major Tech’s warehouse in a safe and perfect
condition.
• In order to maintain this condition and to ensure safe instrument operation,
the user must pay attention to the references and warnings contained
within this user manual.
4. AVAILABLE MEASUREMENTS AND PRODUCT DESCRIPTION

• In order to avoid electrical shock, valid safety and national regulations
regarding excessive contact voltages must receive utmost attention when
working with voltages exceeding 120V DC or 50V RMS AC.
• The respective accident prevention regulations established by the national
health & safety board for electrical systems and equipment must be
strictly met at all times.
• Prior to any operation, ensure that the adapter and cable assemblies are
in perfect condition.
• The adapter may only be connected to charging stations as indicated in
the technical specification section.
• The adapter may only be used within the operating ranges as specified in
the technical specification section.
• The adapter may only be used in dry and clean environments. Dirt and
humidity reduce insulation resistance and may lead to electrical shocks,
particularly for high voltages.
• Never use the adapter in precipitation (e.g., dew or rain). In case of
condensation due to temperature spikes, the adapter may not be used.
• Perfect tests and measurements may only be ensured within the
temperature range of 0˚C to 40˚C.
• If the operator's safety is no longer guaranteed, remove the adapter from
service and protect against use.
• To ensure a safe measurement only use original cable assemblies.
• Safety can no longer be guaranteed if the adapter (or cable assemblies)
show obvious damage. Do not carry out the desired tests or
measurements.
• Have been stored for too long under unfavorable conditions.
• Have been subjected to mechanical stress during transport.
5.4. Appropriate Usage
• The adapter may only be used under conditions and for the purposes for
which it was designed.
• If the adapter is modified, operational safety is no longer ensured.
• The adapter may only be opened by an authorized service technician.
• Before opening the adapter it must be disconnected from any electrical
circuity.
WARNING
Button Operation Performed
HOLD Data Hold
Minus sign Negative reading display
0 to 3999 Measurement display digits
NCV Non-Contact Voltage
AUTO Auto Range mode
DC Direct Voltage
AC Alternating Current/Voltage
Low battery
mV or V Milli-volts or Volts (Voltage)
Ω Ohms (Resistance)
A Amperes (Current)
F Farad (Capacitance)
Hz/% Hertz (Frequency)/Percent(duty ratio)
°C Celsius units (Temperature)
n, m, μ, M, k Unit of measure prefixes: nano, milli, micro, mega, and
kilo
Continuity test
Diode test
4. ACCESSORIES SUPPLIED WITH METER
Ÿ Operating manual
Ÿ 1 x red and 1 x black test lead set
Ÿ Air temperature probe
Ÿ 2 x 1.5V AAA Batteries
Ÿ Carrying case
5. SPECIFICATIONS
3. DISPLAY ICONS
2.000A 1mA ±3.0% of rdg±5 digits
20.00A 10mA
200.0A 100mA ±2.0% of rdg±5 digits
600A 1A
Range Resolution
5.1. AC True RMS Current
Accuracy (% of reading + digits)
Over range protection: Maximum input 600A
Accuracy specified from 5% to 100% of the measuring range
Frequency Response: 50Hz to 60Hz True RMS
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WARNING DANGER OF ELECTRICAL SHOCK.

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6. DESCRIPTION OF WARNING MARKS
1. High danger of electric shock is present when PE Pre-Test indicator lights
while performing PE Pre-test, in this case, further testing must be stopped
immediately. Ensure a sufficiently connection of your body to earth while
performing this test.
2. Terminals with low voltage output (Approx. ±12V) powered by the
charging station, terminal marked with “ ” is connected to PE, use for
test purposes only, in the case of wrong wiring or error of the charging
station, these terminals may present a hazard.

WARNING: Risk of Electrocution. The probe tips may not be long
enough to contact the live parts inside some 240V outlets for appliances
because the contacts are recessed deep inside the outlets. As a result, the
reading may show 0V when the outlet actually has voltage present. Make
sure the probe tips are touching the metal contacts inside the outlet
before assuming that no voltage is present.
CAUTION: Do not measure AC
voltages if a motor on the circuit is being
switched ON or OFF. Large voltage
surges may occur that can damage the
meter.
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7. OPERATION ELEMENTS AND CONNECTORS
1 - CP Error “E” Button
2 - PE Error (Earth Fault) Button
3 - PE Pre-Test Touch Probe
4 - PE Pre-Test Warning Indicator
5 - PP (Proximity Pilot) State Rotary Switch Selector
(NC, 13A, 20A, 32A and 63A)
6 - Mains socket, use for test purpose only, Max allowed current = 10A.
7 - Measuring Terminal PE
8 - Measuring Terminal L1, L2, L3
9 - Phase Indicators of L1, L2, L3 Terminals
10 - Measuring Terminal N
11 - CP (Control Pilot) State Rotary Switch Selector (A, B, C, D)
12 - Test cable for EV charging station Type 2 with socket outlet or fixed
cable with vehicle connector

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13 - Test Cable Input
14 - CP Signal Output Terminal
15 - CP Signal Output Terminal (Connected to PE)
16 - Fuse 10A/250V, 5x20mm Protects Mains Socket Against Overload
8. TESTING CHARGING STATIONS
8.1. Purpose of the Test Adapter
There are two main purposes of the Test Adapter:
1. To simulate connection of an electrical vehicle to the tested charging
station (the test adapter simulates electrical vehicle and charging cable),
connection of the test adapter to a charging station triggers the charging
process in the charging station (CP switch at the adapter shall be in
appropriate model. various cable charging capabilities can be simulated
(NC, 13A, 20A, 32A and 63A) as well as all possible electrical vehicle
modes (A, B, C, D).