multicomp pro MP780430 User Manual

MP780430
Digital RCC (ELCB) Tester User Manual
I. Safety Warning
This manual contains warning information and safety regulations. Please
read them carefully and observe them strictly to ensure the safety of the
user and instrument.
Note:
1. Please read and understand the contents of the manual before
using the instrument.
2. Please use the instrument in strict accordance with the test procedure
described in this manual
3. Please be sure to understand fully the safety aspects of this manual.
4. This instrument must be operated by a trained and qualified technician
and used under the conditions specified in the manual.
5. Uni-Trend is not responsible for any damage caused by improper use
or violation of the safety regulations in the manual.
".&. "
Safety symbol has three meanings in the manual. Users should
pay special attention to the operation for the symbol when reading.
.&.
Danger----identifies conditions and actions that are likely to pose serious or
fatal hazards.
A
Warning--identifies conditions and actions that may pose serious or fatal hazards.
A
Caution----identifies conditions and actions that may pose minor injury or
damage the instrument.
A
Danger
• The RCD test function of this instrument is only applicable to single-phase 230V
/50Hz (power voltage range: 195-253V) circuits;
the measuring voltage range of this instrument is 30V-600V, 45Hz-65Hz.
• Before using the instrument, please check the test lead carefully.
If the test lead is cracked and the metal wires are bare, do not use it. otherwise,
serious or fatal hazards are likely to be posed.
• When testing, only under safe conditions can you finger the test lead.
• When testing, do not touch any exposed leads.
• After oompleting the test, please disoonnect the test lead from the power immediately.
&Warning
• During the test, never open the casing of the instrument because of the dangerous
voltage in it. In the event of a malfunction, please refer it to a professional for
inspection and repair.
• If there are any anomalies (such as imperfect display, unexpected test value,
damaged casing, noise during testing, etc.) of the instrument, please hand ii over
to a professional for repair before use.
• Do not use the instrument if your hands are wet.
.&.
Caution
• To ensure safety, please use the certified test lead provided by Uni-Trend.
It is forbidden to use other test leads.
• Do not expose the instrument to harsh environments such as the sun,
extreme temperatures and humidity.
• Please clean the instrument with a dry cloth. Do not use a damp cloth,
abrasive or solvent to clean it.
• If the instrument is wet, dry it before storage.
Warnings:
1.lf a possible voltage between the protective conductor and earth will
influence the measurements.
2.lt needs to test the connection between the neutral point of the distribution
system and earth before the test is started. A possible voltage between the
N-conductor and the earth may influence the measurements.
3.The leakage currents in the circuit following the residual current protection
device may influence the measurements.
4.When the fault voltage is over 50V, "Uf Hi" will be displayed and the test will
stop. The voltage relates to the residual operating current of the protective device.
5.The earth electrode resistance of the measuring circuit probe cannot surpass 50.
6.The potential fields of other earthing installations may influence the measurement.
?.Special conditions in residual current protective devices of a particular shall
be taken into consideration.
8.Equipment is connected downstream of a residual current protective device
may cause a considerable extension of the operating time.
The meaning of the symbols associated with this instrument:
.&. Danger, warning or caution [QI
Double or reinforced insulation
E
-4, Grounding Conforms to EU standards
(
II. Features
1. Intelligent microprocessor chip control: High accuracy, reliability and stability
2. RCD Test Wiring Check:
1) When the wiring is correct, the L-PE and L-N symbols on the left side of the
LCD are always on.
2) If the power is abnormal or no power, the L-PE and L-N symbols on the left
side of the LCD flash simultaneously.
3) If the power socket is not well grounded or not grounded, the L-PE and N-PE
symbols on the left side of the LCD flash simultaneously.
4) If the null line of the power socket is not well connected or not connected, the
L-N and N-PE symbols on the left side of the LCD flash simultaneously.
5) If the live wire phase and null line phase of the power socket are inversely
connected, the L-PE, L-N, and N-PE symbols on the left side of the LCD flash
simultaneously.
Item Scene
If the wiring is correct
1
If the power is abnormal or no power,
2
If the power socket is not well grounded
3
or not grounded
If the null line of the power socket is not
4
well connected or not connected
If the live wire phase and null line phase
5
of the power socket are inversely connected
3. Phase angle selection: The RCD test can be selected to start from a positive
° °
(0 ) or a negative (180 ) half cycle.
4. Contact voltage alarm: The contact voltage can be limited to UL25V or UL50V.
When the contact voltage is larger than the selected limit value during the
RCD test, the RCD test will be stopped and the LCD will display "Hi" and "Uf'.
5. Auto data hold: After RCD test, the measurement results are kept displayed
until keystroke or gear switch.
6. Over range indication: When the test value exceeds the maximum or minimum
value of the current test range, the LCD will display "> current maximum value"
(such as >300ms) or "<current minimum value" (such as <30V).
7. AUTO RAMP test: Test the trip current and trip time simultaneously.
8. Battery powered: 1.5V AA alkaline battery (6 pcs). There will be Low
voltage indication when the battery voltage is approximate 7.2V.
9. Auto Power Off function: The instrument will be power off automatically
after no operation for 5 minutes.
10. Fuse safeguard
11. Double or reinforced Insulation for safe design.
12. Backlight function: Press the "LIGHT" key and power on the instrument
to tum the backlight on; In the "VOLTS" position, press the "LIGHT" key
to turn the backlight on/off.
13. L-N voltage measurement: Display L-N input voltage. The display range
is 30V~600V. "---" is displayed when there is no input or the input is
extremely small, "<30V" is displayed when the input is less than 30V,
and ">600V" is displayed when the input is larger than 600V. Press the
"L-N/L-PE" key to switch to L-PE voltage display.
14. L-PE voltage measurement: Display L-PE input voltage. The display
range is 30V-600V. "----" is displayed when there is no input or the input
is extremely small, "<30V" is displayed when the input is less than 30V,
and ">600V" is displayed when the input is larger than 600V. Press the
"L-N/L-PE" key to switch to L-N voltage display.
15. Frequency measurement: Display the input frequency of the L-PE
terminal. In the "VOLTS" position, press the 'VOLT/FREQ" key to switch
the voltage/frequency display.
Ill. Technical Specifications
1. Measurement Range and Measurement Accuracy (Temperature: 23±5
Humidity: 45%-75% RH; Altitude "(2000m)
L-PE L-N N-PE
Voltage measurement function:
on on
off
Voltage
Function
flash flash off Range
flash off flash
30V-600V
VOLTS
off flash flash
RCD test function:
flash flash flash
Voltage
-
Function
(AC)
-
x½
230V
-
x1
(Tolerance:
x 5 -15%-+10%) 500mA
Frequency:
AUTO
50Hz
RAMP
Test
°
C;
Frequency
Display
Accuracy Error
Range
Resolution
±3%rdg ±3dgt
45Hz-65Hz 1V/1Hz (Frequency display
is for reference only)
Trip Current
Trip Time (MAX) Accuracy
(IAn)
10/20/30/100/
Trip Current Trip lime
2000mS
300/500mA
10/20/30/100
Tolerance:
1000mS
/300 mA -10%-0%
Tolerance:
300mS
0%~+ 10%
±2%rdg
40mS
10/20/30mA
±2dgt
(RAMP
increase step Tolerance:
10%) I n from -10%-+10%
10/20/30/100/
20%-110%
300/500mA
300*10 ms