Promax PE-455 User manual

PE-455
INSULATION TESTER
- 0 MI1317 -
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

SAFETY NOTES
Read the user’s manual before using the equipment, mainly " SAFETY RULES "
paragraph.
The symbol on the equipment means "SEE USER’S MANUAL". In this
manual may also appear as a Caution or Warning symbol.
Warning and Caution statements may appear in this manual to avoid injury
hazard or damage to this product or other property.

USER’S MANUAL. PE-455
English
TABLE OF CONTENTS
1. GENERAL..................................................................................................................1
1.1 Features ..............................................................................................................1
1.2 Specifications......................................................................................................1
2. SAFETY RULES........................................................................................................3
2.1 General................................................................................................................3
2.2 Descriptive Examples of Over-Voltage Categories.............................................4
3. PRODUCT LAYOUT..................................................................................................5
4. MEASURING METHODS..........................................................................................7
5. MAINTENANCE.........................................................................................................9
5.1 Battery replacement............................................................................................9
5.2 Fuse replacement................................................................................................9
5.3 Cleaning and storage........................................................................................10

USER’S MANUAL. PE-455

USER’S MANUAL. PE-455
11/2014 Page 1
English
INSULATION TESTER
PE-455
1. GENERAL
1.1 Features
• Large LCD display.
• Three insulation test voltage: 250 V, 500 V, 1000 VDC.
• External voltage warning indication.
• Automatic circuit discharge.
• Test insulation at rated voltage into a 1 mA load.
• 200 mA continuity short circuit test current.
• AC voltage measurement.
• Fuse protection.
• Timer for test function (count 3 ~ 5 minutes).
• Data hold function.
• Auto power off function.
1.2 Specifications
Insulation Resistance
Auto range 20 MΩ/ 200 MΩ/ 2000 MΩ
Range Resolution Accuracy
20 MΩ10 kΩ±(1.5% rdg. + 5 dgt)
200 MΩ100 kΩ±(2.5% rdg. + 3 dgt)
2000 MΩ1 MΩ±(5% rdg. + 5 dgt)
Output current 1 mA DC min. at 0.25 MΩ(250 V range)
1 mA DC min. at 0.5 MΩ(500 V range)
1 mA DC min. at 1 MΩ(1000 V range)
Power consumption Max. consumption current
Approximately 250 mA

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AC Voltage
Range 0 — 600 V
Resolution 1 V
Accuracy ±1.5% rdg. ±3 dgt.
Line frequency range 40 — 120 Hz
Resistance
Range Min resolution Accuracy
20 MΩ0.1
200 MΩ0.1
2000 MΩ1 ±(1.5% rdg. + 3 dgt)
Open circuit terminal voltage 4 V DC min.
Short circuit terminal current 210 mA DC min.
Power consumption Max. consumption current
Approximately 160 mA
Buzzer sounds Under 1 Ω
Auto power off Timer about 5 ~ 10 minutes (current consumption:
10μA)
Power supply 9 V DC (6 x 1.5 V type R6)
NOTE: Equipment specifications are set in the following environmental operating
conditions. Operation outside these specifications are also possible. Please
check with us if you have specific requirements.
Operating environmental conditions
Altitude Up to 2000 m
Temperature range From 0 to 40 °C
Max. relative humidity 80%
Storage temperature From 20 to -60 °C
Dimension W. 90 x L. 205 x D. 55 (mm.)
Weight Approx. 600 g. (batteries included)
Standard Accessories PP010 Test leads with safety clamps
Fuse 0.5 A 250 V
User’s Manual
Transport sutcase
RECOMMENDATIONS ABOUT THE PACKING
It is recommended to keep all the packing material in order to return the equipment, if
necessary, to the Technical Service.

USER’S MANUAL. PE-455
11/2014 Page 3
English
2. SAFETY RULES
2.1 General
* This equipment can be used in Overvoltage Category III installations and
Pollution Degree 2 environments.
* When using some of the following accessories use only the specified ones to
ensure safety.
Test leads
* Check test leads integrity before using them.
* Observe all specified rating both of supply and measurement.
* Remember that voltages higher than 60 V DC or 30 V AC rms are dangerous.
* Use this instrument under the specified environmental conditions.
* The user is only authorised to carry out the following maintenance operations:
Battery replacement.
Fuse replacement.
On the Maintenance paragraph the proper instructions are given.
Any other change on the equipment should be carried out by qualified
personnel.
* Follow the cleaning instructions described in the Maintenance paragraph.

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* Symbols related with safety:
2.2 Descriptive Examples of Over-Voltage Categories
Cat I Low voltage installations isolated from the mains.
Cat II Portable domestic installations.
Cat III Fixed domestic installations.
Cat IV Industrial installations.

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3. PRODUCT LAYOUT
(1)
(2)
(3)
(6)
(7)
(8)
(5)
(4)
English
1. Terminals for connecting
2. LCD Display
3. Power indicator
4. External voltage indicator (LIVE CIRCUIT)
5. DATA HOLD button
6. TEST ON/OFF button
7. Rotary button for Zero adjustment
8. Function dial (FUNCTION)

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English
4. MEASURING METHODS
OPERATION CAUTION
Observe all safety precautions when the FUNCTION switch is set to 250 V, 500 V, 1000
V position. Connect the meter test leads to the circuit under test before operating the
TEST button. Do not touch the paper clip ends of the test leads while is carrying out a
measurement.
Some electrical equipment, especially cables, may retain an electrical change when
disconnected from the line. It is good practice to discharge such equipment with
grounding straps, or other suitable devices, before touching or making connections. The
meter automatically discharge the test circuits when a test is completed.
IMPORTANT
Remove all power to the circuit under test when making resistance measurement. If any
voltage is present in the test circuit, the indicator of external voltage (LIVE CIRCUIT)
LED located on the meter front plate will light. Immediately disconnect the test leads
and turn off power to test circuit.
• Function Switch:
The FUNCTION switch is used to select the range, or function desired.
• Test button:
The TEST button is normally OFF, press to start and to stop the test. When
beginning the test, automatically will activate a timer from 3 to 5 minutes that will
stop the measurement whenever the TEST button in not again pressed.
• Always check the following before testing:
The message " Low Battery " does not appear on the LCD screen.
There is no visual damage to the instrument or test leads.
• Test Lead Continuity
Select the CONTINUITY function and Ωrange. Short the test leads together.
An over-range ("1") indication mean the leads are faulty or instrument fuse is blown.
(See "Fuse Replacement" section).
• Insulation Resistance Testing
WARNING: Insulation tests should be conducted on circuits that are de-energised.
Ensure circuits are not live before commencing testing.
− Select the required test voltage (250 V, 500 V or 1000 V) by rotating the
FUNCTION switch.
− Connect the test leads to the instrument and to the circuit to be tested. (See
connect diagram). If the "LIVE CIRCUIT" is light, do not press the TEST button
and disconnect the instrument from the circuit. The circuit is LIVE and should be
de-energised before further testing.

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− Press the TEST button. The value of insulation resistance in megohms will be
displayed.
CAUTION: Never turn the function dial while while a reading is being taken. This
may damage the instrument. Never touch the circuit during insulation
testing.
Only disconnect the test leads if you are sure that the test is completed. This is
because the system may be charged up and it must be allowed to discharge
through the tester's internal discharge resistor.
• Continuity discharge (Resistance tests)
WARNING: Ensure circuit is not live before commencing testing.
− Select the 200 Ωrange by rotating the FUNCTION switch and connect the test
leads to the instrument. Short the tips of the test leads. Press the button TEST
to start the reading and the timer functions.
The display will show the resistance of the test leads. Adjust the ΩNull control
to set the reading to zero.
− Connect the test leads to the circuit under test. Ensure the circuit is not live by
checking that the live circuit indicator does not light. Read the value of
resistance from the LCD.
• AC voltage test:
Set the FUNCTION switch to ACV. Connect test leads to circuit being measured.
Press TEST button and read the value of voltage from the LCD.

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5. MAINTENANCE
5.1 Battery replacement
ATTENTION: Disconnect all the test leads before opening the cover to change the
batteries.
1. Remove the battery cover and the batteries.
2. Replace with six 1.5 V R6 or LR6 batteries, taking care to observe correct
polarity.
3. Replace the battery cover.
5.2 Fuse replacement
English
ATTENTION: Disconnect all the test leads before opening the cover to change the
fuse.
The fuse is located in the enclosure. To replace the fuse, take the 4 screws out
from the bottom case, then remove and replace the fuse. Make sure to place the fuse
protection cover. (Small rubberised fuse cover). Only replace with the same
specification fuse.
FUSE TYPE SHOULD BE: 5 x 20 mm., et
0.5 A F 250 V
AVOIDING THESE DIRECTIONS COULD DAMAGE THE EQUIPMENT

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5.3 Cleaning and storage
WARNING: To avoid electrical shock or damage to the meter, do not get water inside
the case.
Periodically wipe the case with a damp cloth and detergent: do not use abrasives
or solvents.
If the meter is not to be used for periods of longer than 60 days, remove the
batteries and store them separately.

PROMAX ELECTRONICA, S. L.