Major tech MT390 User manual

M 390
User Manual
Multifunction Tester
t
6 Functions
Insulation Resistance
Earth Resistance
LOW OHW
Voltage
Loop Impedance
RCD
T
2014

Multifunction Tester User Manual

3
Contents
1-Safety Considerations.........................................................................
1.1-International Symbols....................................................................
1.2-Terminology.................................................................................
1.3-Warnings.....................................................................................
1.4-Caution........................................................................................
1.5-Declaration of Conformity...............................................................
1.6-Error Codes..................................................................................
2-Specification......................................................................................
3-General Specification..........................................................................
4-Instrument Overview...........................................................................
4.1-Front View....................................................................................
4.2-Connector Panel............................................................................
4.3-Battery & Fuse..............................................................................
4.4-Understanding the Display...............................................................
5-How to Use the Tester.........................................................................
5.1-Important Symbols and Messages during the measurement.................
5.2-Using the LOOP/PFC Function........................................................
6-Using the Insulation Function................................................................
6.1-Insulation Function/Menu Operation.................................................
6.2-Insulation Resistance Display/Switch and Terminal Settings................
6.3-Using the RE Function....................................................................
6.4-Earth Resistance Display/Switch and Terminal Settings......................
6.5-To Measure Earth Resistance..........................................................
6.6-RE Function Menu Operation...........................................................
6.7-Using the LOW OHM Function..........................................................
6.8-LOW OHM Function Menu Operation.................................................
7-Menu................................................................................................
8-System Settings.................................................................................
8.1-Languages...................................................................................
8.2-Date/Time....................................................................................
8.3-TV...............................................................................................
8.4-Memory.......................................................................................
8.5-Auto Screen-off.............................................................................
8.6-Auto Power-off..............................................................................
8.7-System Default Settings..................................................................
8.8-System Upgrade............................................................................
9-Run Settings......................................................................................
9.1-Bluetooth.....................................................................................
9.2-Data Record.................................................................................
9.3-Datalog.......................................................................................
10-Data Record.....................................................................................
10.1-Delete Files..............................................................................
10.2-Data Record Preview..................................................................
10.3-Menu.......................................................................................
10.4- .................................................................................
10.5-Datalog Color...........................................................................
Drawing
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Multifunction Tester User Manual

4
Warning!
1-Safety Considerations
You must read and completely understand the Safety Considerations part of this manual before using the
instrument.
This manual contains instructions regarding the safe use and the proper functioning of the instrument. If not
complied with, the user could be exposed to danger and the instrument to possible damage.
The term as used in this manual defines a condition or a procedure which could lead to a serious
injury or accident. The term defines a condition or action which could lead to the instrument being
rendered defective during the testing process.
• Make sure to read and fully understand the instruction contained within this manual prior to use.
• This instrument is not intrinsically safe therefore do not use the instrument in hazardous environments.
• In order to prevent fire and/or electrical shock, do not use the instrument in wet, damp or highly humid
environments.
• Prior to use, check if the instrument functions correctly. If any symptoms/symbols of malfunction or abnormalities
are indicated, do not use and inform MTi Instruments.
• Users who could be exposed to voltages in excess of the extra low band (50V ac or 120V dc) should be
competent and be aware of the requirements of GS 38 regarding the use of the instrument and the associated
leads and probes etc.
• Make sure your fingers holding the test probes are positioned behind the safety lines of the test probes.
• DO NOT OPEN THE INSTRUMENT.
• If the internal fuse (protective device) operates, replace with a device of the same type and rating. If it operates
again seek professional advice. DO NOT REPLACE FUSE AND TRY AGAIN.
• When carrying out the “dead tests” ensure prior to connection of the instrument leads the circuit under test
has been confirmed “dead” and secured in the OFF position using appropriate methods.
• Battery condition is indicated by a beep. Check and replace if necessary.
• Do not test an electrical circuit or systems where the voltage is in excess of 550V.
• Ensure at all times the leads are in compliance with GS 38 (as supplied) and not damaged.
1.1-International Symbols
1.2-Terminology
WARNING
CAUTION
1.3-Warnings
•
•
•
•
•
•
WARNING!
CAUTION! Voltage present
Earth
Double Insulation (Class II insulation)
Fuse
Prohibited to use for the Electrical System which uses the voltage above 550V
Conformity to European Standards
>550V
Multifunction Tester User Manual

5
1.4-Caution
1.5-Declaration of Conformity
1.6-Error Codes
LOOP Resistance
L- PE (Hi-Amp)
Do not change functions on the test instrument with the test leads in place, i.e. changing from a “dead test”
to a test where the supply is required could damage the instrument.
This instrument has been tested according to the below regulations:
EN 61326: Electrical equipment for measurement, control and laboratory use.
EN 61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use
–Part 1: General requirements.
BS EN61557: Electrical safety in low voltage distribution systems up to 1000V a.c. and 1500V d.c.
Equipment for testing, measuring or monitoring of protective measures.
• Part 1 General requirements
• Part 2 Insulation resistance
• Part 3 Loop resistance
• Part 4 Resistance of earth connection and equipotential bonding
• Part 6 Residual current devices (RCDs) in TT and TN systems
• Part 7 Phase sequence
• Part 10 Combined measuring equipment
Various error conditions are detected by the tester and are indicated with the icon, “Err”, and an error
number on the primary display. See Table 1. These error conditions disable testing and, if necessary, stop
a running test.
Table 1. Error Codes
Measuring Current: 8.0 A 25.0 A
Range of the Voltage Used: 195V a.c. – 260V a.c. (50,60Hz)
2-Specification
~
Error Condition Code
Solution
Fault Voltage
Over Temp
Excessive Noise
Excessive Probe
Resistance
Self Test Fails
Code
1
2
3
4
5
Solution
Check the installation, in particular, the voltage
between N and PE.
Wait while the tester cools down.
Switch off all appliances (Loop, RCD measurements)
and move the earth stakes (earth measurement).
Put the stakes deeper into the soil. Tamp down the
soil directly around the stakes. Pour water around
the stakes but not at the earth ground under test.
Return the tester to a Service Center.
Range(Ω)
0.23 9.99
10.0 99.9
100 999
~
~
~
Resolution(Ω)
0.01
0.1
1
Accuracy
±(4% of reading+ digits)6
Multifunction Tester User Manual

Notes
Notes
Notes
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
:
:
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
: , 650mA
:,x2
:
:
:
:
L- PE (No Trip)
LINE Resistance
L- N
RCD (BSEN 61557-6)
Accuracy at applied test current
Measuring Current: < 15mA
Range of the Voltage Used: 195V a.c – 260V a.c (50,60Hz)(50,60Hz)
Measuring Current 4.0 A
Range of the Voltage Used 195V a.c. – 260V a.c. (50,60Hz)
Rcd Rating (I_n) 10mA, 30mA, 100mA, 300mA, 500mA and 1A.
Test current x1/2, x1 and x5
Form of the Test Current Sine wave form (ac), Pulse wave form (dc)
RCD Form General (G - non-delayed), Selective (S - time-delayed)
Initial Polarity of the Test Current 0°, 180°.
Voltage Range 195V a.c. - 260V a.c. (50Hz,60Hz)
[1]
[1]
[1]
Range(Ω)
0.23 9.99
10.0 99.9
100 999
~
~
~
Resolution(Ω)
0.01
0.1
1
Accuracy
±(5% of reading+6 digits)
Range(Ω)
0.23 – 9.99
10.0 – 99.9
100 – 999
Resolution(Ω)
0.01
0.1
1
Accuracy
(4% of reading+ digits)±4
Current Multiplier
x1/2
x1
x2
X5
Trip Time Accuracy
±(1% of reading+1ms)
±(1% of reading+1 )
±(1% of reading+1 )
±(1% of reading+1 )
ms
ms
ms
6
Multifunction Tester User Manual

7
Insulation
Low Ohm
Earth Resistance
Terminal Voltage
125V(0%~+10%)
250V(0%~+10%)
500V(0%~+10%)
1000V(0% +10%)~
Range
0.125~4.000 MΩ
4.001~40.00 MΩ
40.01~400.0 MΩ
400.1~1000 MΩ
0.250~4.000 MΩ
4.001~40.00 MΩ
40.01~400.0 MΩ
400.1~1000 MΩ
0.500~4.000 MΩ
4.001~40.00 MΩ
40.01~400.0 MΩ
400.1~1000 MΩ
1.000~4.000 MΩ
4.001~40.00 MΩ
40.01~400.0 MΩ
400.1~1000 MΩ
Resolution
0.001MΩ
0.01MΩ
0.1MΩ
1MΩ
0.001MΩ
0.01MΩ
0.1MΩ
1MΩ
0.001MΩ
0.01MΩ
0.1MΩ
1MΩ
0.001MΩ
0.01MΩ
0.1MΩ
1MΩ
Accuracy
( %+10)
(2%+10)
(4%+5)
(5%+5)
( %+10)
(2%+10)
(3%+ )
(%+)
( %+10)
(2%+10)
(%+)
(4%+5)
( %+10)
(2%+10)
(%+)
(4%+5)
±3
±
±
±
±3
±
±2
±3 2
±3
±
±3 2
±
±3
±
±3 2
±
Test Current
1mA @load125kΩ
1mA @load250kΩ
1mA @load500kΩ
1mA @load1MΩ
1mA
Short circuit
current
≤
≤
≤
≤
1mA
1mA
1mA
Range
0.000~4.000Ω
2.00~40.00Ω
20.0~400.0Ω
Resolution
0.001Ω
0.01Ω
0.1Ω
Accuracy
(1.5%+30)
(%+)
±
± 1.5 3
Max. Open Circuit Voltage
5.8V±1VDC
Overload Protection
250Vrms
Range
0.00~99.99
100.0~999.9
Ω
Ω
1000~2000Ω
Resolution
0.01Ω
0.1Ω
1Ω
Accuracy
(2%+30d)
(2%+6d)
±
±
Accuracy of the Current of the RCD: ± (5% of reading + 1digits)
Resolution of the RCD Timing: 0.1ms
Voltage and Frequency
Measurement Range
(V)/AC-DC
80 500~
Resolution(V)
1
Accuracy
±(2% of reading +2digits)
Measurement Range
(Hz)
45 65~
Resolution(Hz)
1
Accuracy
±2Hz
Multifunction Tester User Manual

3-General Specification
4-Instrument Overview
Power Source
Battery Life
CAT Rating
Protection Classification
Protection Rating
LCD Screen Type
Pixels
Operating Temp
Relative Humidity
Storing Temp
Operating Altitude
Protective device
Dimensions
Weight
4.1-Front View
-Starts the selected test. The T key is surrounded by a “touch pad”. The touch pad measures the potential
between the operator and the tester’s PE terminal. If you exceed a 100 V threshold, the D symbol above
the touch pad is illuminated.
-Warning lamp
-320X(RGB)X240 color active matrix
-Press and hold Turns the tester on and off. Short Press return the latest status.
-Function selector switch.
-Navigation keys:
Enter, Up, Down, Left/Save, Right
-Selects the sub-menus from the Test Mode selected by the rotary switch:
F1, F2, F3, F4
-Accesses help menus and delete files .
1
2
3
4
5
6
7
8
1-
1-
6-
7-
8
8 x 1.5V AA Size Alkaline batteries
or 8 x 1.2V AA Size rechargeable Ni-MH batteries
Average of 15hours
IV 400V
Double Insulation
I
3.5”TFT
320x240
0°C~ 45°C
95% 10°C~ 30°C: Non-condensing
75% 30°C~ 40°C
10°C~ 60°C
2000m
500mA Fast response BS 88 Fuse
220mm x 94.6mm x 60.5cm
631g
-
5
1
2
6
38
7
Multifunction Tester User Manual

4.2-Connector Panel
4.3-Battery & Fuse
Input Terminal to operate the switched probe
L - Line Input
PE - Protective Earth Input
N - Neutral Input
Input Terminal to operate the switched probe
TV OUT
System Reset
USB Connector
Power Supply Socket
Fuse 5A 600V
Fuse 5A 600V
Fuse 500mA 600V
Battery cells (size AA).
1-
2-
3-
4-
5-
6-
7-
8-
9-
1-
2-
3-
4-
9
9
TV OUT
CAT III 600V
RESET
15V DC
1.0A
L
VMΩΩ
L1 L2
PE
L3
N
13 42 5
6 7 8
F5A H 600V 50KA≥
F5A H 600 50KA≥
F500mA 600V 50KA≥
4
12 3
Multifunction Tester User Manual

1
2
3
4
14
15
18
19
16
17
20
25 24 23 22 21
26
27
28
5
13
12
7
6
89
1011
10
4.4-Understanding the Display
No.
1
Annunctator
Function
RCD
Loop/PFC
V/Phase
Continuity
Value
AUTO
X1/2
X1
X2
X5
RAMP
TA
RCD TIME
N
RCD TRIP
T
RCD TIME
L-PE
L-L
L-N
L-PE
0.5Ω
1.0Ω
2.0Ω
5.0Ω
Multifunction Tester User Manual

11
2
3
4
5
G
S
G
S
No.
1
Annunctator
Function
Continuity
Terminal Voltage
Trip Current
Current
Beeper
Type of RCD
Lock
0°/180°
ZERO
Reference
Date Time
10.0Ω
20.0Ω
50.0Ω
50.0Ω
125
250
500
1000
30mA
100mA
300mA
500mA
650mA
1000mA
10mA
NO Trip
Hi Amp
OFF
ON
OFF
ON
V
V
V
V
0°
180°
0.125MΩ
0.25MΩ
0.5MΩ
1MΩ
2MΩ
5MΩ
10MΩ
20MΩ
50MΩ
100MΩ
200MΩ
0
Multifunction Tester User Manual

12
No.
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Annunctator
N-PE
L-N
L-PE
PFC
PSC
Meaning
Low battery icon. See
for additional information on batteries and power management.
Beeper
Lock
Hold
Datalog
Bluetooth
Appears when the instrument is overheated.
Display 30 seconds (time-delayed)
Primary display and measurement units.
Primary display and measurement units.
Fault voltage. Measures neutral to earth.
Indicates the preset falut voltage limit.
Arrows above or below the terminal indicator symbol indicate
reversed polarity. Check the connection or check the wiring to
correct.
N-PE Value
L-N Value
L-PE Value
Prospective Earth Fault Curre t.
Calculated from voltage and loop impedance which is measured
line to protective earth.
Prospective Short Circuit. Calculated from measured voltage
and impedance when reading line to neutral.
Being tested
n
Being tested
High Voltage Warning
Warning
30S
UL:
UF:
Ω
888.8
888.8
L
PE N
L
PE N
L
PE N
L1
L2 L3
230
L
231
PE 1N
230
L
231
PE 1N
:Indicates the battery status.
:100%
:80%
:50%
:20%
:Low Battery
Multifunction Tester User Manual

5-How to Use the Tester
5.1-Important Symbols and Messages during the measurement
Description
Battery status
Displayed measured value
The measurement unit of the measured value
The indication of the correct input terminal connection
Displayed menu
5.1.1-Displayed icons (symbols) and messages in VOLTAGE function
:Indicates the correct input terminal connectivity . The user should connect the test leads
to the appropriate terminals.
:Indicates L connection is connected on the N input terminal and vice-versa
:Indicates no connection on the PE input terminal
If the wiring condition is other than normal, the Tester is limited on its measurements that can be performed.
• Will not detect two hot wires in a circuit.
• Will not detect a combination of defects.
• Will not detect reversal of grounded and grounding conductors.
:Indicates the battery status.
:100%
:80%
:50%
:20%
:Low Battery
1-
2-
3-
4-
5-
Notes:
5.1
5.1
5.1
5.1
5.1
5.1
51
3
2
24
Figure 1 Screen
13
Multifunction Tester User Manual

5.1.2-Displayed icons (symbols) and messages in LOOP/PFC function
:Indicates the correct input terminal connectivity . The user should connect the test leads
to the appropriate terminals.
:Indicates L connection is connected on the N input terminal and vice-versa
:Indicates no connection on the PE input terminal
If the wiring condition is other than normal, the Tester is limited on its measurements that can be performed.
• Will not detect two hot wires in a circuit.
• Will not detect a combination of defects.
• Will not detect reversal of grounded and grounding conductors.
:Indicates the battery status.
:100%
:80%
:50%
:20%
:Low Battery
:Indicates high temperature and therefore cannot make any measurements
Measuring : Function in use - measurement being carried out
RCD Trip: During the measurement, the RCD has tripped therefore no test result obtained
-Noise-: Appears during the No Trip Loop Measurement, and indicates that the displayed value may not be
accurate due to “mains” interference - test to be repeated
5.1.3-Displayed icons (symbols) and messages in RCD function
: Indicates the correct input terminal connectivity . The user should connect the test leads
to the appropriate terminals.
: Indicates L connection is connected on the N input terminal and vice-versa
: Indicates no connection on the PE input terminal
If the wiring condition is other than normal, the Tester is limited on its measurements that can be performed.
• Will not detect two hot wires in a circuit.
• Will not detect a combination of defects.
• Will not detect reversal of grounded and grounding conductors.
: Indicates the battery status.
: 100%
: 80%
: 50%
: 20%
Notes:
Message:
Notes:
-Noise-:
14
Multifunction Tester User Manual

: Low Battery
: Indicates high temperature and therefore cannot make any measurements
Half: Appears during the auto test when rcd has operated on the x ½ test
Half Trip: Appears during the manual test when rcd has operated on the x ½ test
UL OVER: Appears when UF voltage exceeds the previously set UL voltage. (UL voltage can be set to 25V
or 50V) The user must check the impedance between L-PE
5.1.4-Displayed icons (symbols) and messages when using the LOW OHM and CONTINUITY functions
: Indicates correct input terminal connectivity. The user should connectthe test leads to
the appropriate terminals indicated by color coding.
: Low Battery (The icon will be flashing along with the beep sound).
: The resistance of the test leads are included in the test measurement
: The resistance of the test leads are not included in the test measurement
5.1.5-Displayed icons (symbols) and messages when using the RE functions
: Indicates correct input terminal connectivity. The user should connect the test leads to
the appropriate terminals indicated by color coding.
: Low Battery (The icon will be flashing along with the beep sound).
: The resistance of the test leads are included in the test measurement
: The resistance of the test leads are not included in the test measurement
-
: the test leads to
the appropriate terminals indicated by color coding.
4
t
:
3
Message:
Symbol:
-
-
5.1.6 Displayed icons(symbols) and messages in INSULATION function
Indicates correct input terminal connectivity. The user should connect
: Low Battery (The icon will be flashing along with the beep sound).
: Indicates high voltage (125V, 250V,500V or 1000V) at probe terminals, Use caution
Before you do a loop impedance test, use the zero adapter to zero the test leads or the mains cord. Press
and hold F button for more than two seconds until the annunciator appears. The tester measures
the lead resistance, stores the reading in memory, and subtracts it from readings. The resistance value is
saved even when the power is turned off so it is unnecessary to repeat the operation each time you use the
ester with the same test leads or mains cord.
Be sure the batteries are in good charge condition before you zero the test leads.
You can select UL Voltage by Pressing and hold F button for more than two seconds (25V or 50V).
5.2-Using the LOOP/PFC Function
1
2
Note
UL OVER:
:
:
:
1
1
1
1
-
-
-
-
15
Multifunction Tester User Manual

5.2.1-Using the No Trip LOOP Measurement to be selected where the circuit is protected by an RCD whose
rating is 30mA or above
Turn the rotary switch to the LOOP/PFC position
Connect the test leads as Figure Figure
If voltage of the L- PE on the lower left appears, the
unit is ready to TEST
Press the TEST button when ready
If NOISE appears during the No Trip Loop
Measurement, the displayed value may not be
accurate due to “mains” interference and the
test should be repeated
When carrying out the test from a 13A socket
the points of contact are automatically selected by
the plug top connection
1-
2- 4
3-
4-
5-
1
-
-
-
-
3
3
3
Figure 3-No Trip LOOP
Ω
A
16
Multifunction Tester User Manual

5.2.2-LOOP / PFC Function Menu Operation
Main Display
Menu Display
Pop-up and shutdown Loop/PFC menu , Shutdown mode is activated when the user selects.
Pop-up and shutdown Current menu , Shutdown mode is activated when the user selects
None
Press the F4 button 3S, triggering zero function.
Up menu to select the current active sub-options.
Down menu to select the current active sub-options.
Confirm the user select mode.
F1 Button:
F2 Button:
F3 Button:
F4 Button:
Up Button:
Down Button:
Enter Button:
17
Multifunction Tester User Manual

1
2
2
3 Figure
When measuring is completed, impedance of
L- PE PFC (lf) value appears on the screen
Press TEST button if re-test is necessary.
When symbol from , ,
appears lower left corner, and if the voltage
260V, the measurement will not take
5.2.3-Using the Hi Amp LOOP Measurement to be
selected where the circuit is NOT protected the
inclusion of an RCD
Turn the rotary switch to the LOOP / PFC position
Press F2 button to change from No Trip to Hi Amp
Connect the test leads as shown in the
-
and
exceeds place
by
If voltage of the L- PE on the lower left appears, the
unit is ready to TEST
Press the TEST button when ready
-
1-
-
-8
4-
5-
1
1
1
1
1
-
-
-
-
-
18
Multifunction Tester User Manual

L
PE
L
PE N
A
U
L:25V
230
231
1
0.41
6-
7-
1-
-
3- Figure 12
4-
5-
When the measuring is complete the impedance
of L-PE and PFC (lf) value appears on the screen
Press TEST button if re-test is necessary
When symbol from , ,
appears lower left corner, and if the voltage
exceeds 260V, the measurement will not take
place
5.2.4-Using the L- N Line Impedance Measurement
Turn the rotary switch to the LOOP / Psc position
2 Press F1 button to change fromL-PEtoL-N
Connect the test leads as shown in
If voltage of the L- PE on the lower left appears, the
unit is ready to TEST
Press the TEST button when ready
5
-
-
6-
6-
6-
6-
1
19
Current
Hi Amp
Multifunction Tester User Manual

5.2.5-Using The RCD Function
You can select UL Voltage by Pressing and hold
F3 button for more than two seconds (25V or 50V).
Uf value appears is the contact voltage on the
screen.
20
6-
7-
When measuring is completed, impedance of
L - N and PSC value appears on the screen
Press TEST button if re-test is necessary
When symbol from , ,
appears lower left corner, and if the
voltage exceeds 260V, the measurement will
not take place
6-
6-
6-
6-
PSC
Multifunction Tester User Manual