Besantek BST-3PT5 User manual
Index
1. Safety Rules......................................
2. Safety Check.....................................
3. General Description...........................
4. Brief Product Description...................
5. Operating Instructions.......................
6. Front Panel and LCD Layout.............
7. Principle of how it work......................
8. Preparation for use............................
9. Specications....................................
10. Limited Warranty................................
Page
1-2
2-3
4-6
7
8
9
10
11
12-13
13-14
1. Safety Rules
&
&
2. Safety Check
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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-8-
5. Operating Instructions
Determination of the rotary eld direction and
phase presence
On a 3 Phase System, the sequence of the 3 phases
determine the rotation of a 3 phase motor connected
to that system.
The correct 3 Phase Sequence L1, L2, L3results in a
clockwise rotation of the connected motor.
Connect the Test Leads to the sockets of the
Instrument, respecting the correct color. Red to L1,
Yellow to L2, Blue to L3.
Clip the test probes to the Powered three mains
phase, L1, L2, L3.
When connecting to a voltage superior to 40V AC, the
corresponding LCD Indicator will show, indicating the
presence of the voltage on it's corresponding lead (L1,
L2, L3LCD).
If the LCD (Right arrows) L1-L2-L3is illuminated,
clockwise rotary eld is present.
If the LCD(Left arrows) L3-L2-L1is illuminated, a
counter clockwise rotary eld is present.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
-9-
-10-
7. Principle of how it work
As this instrument takes it's power from the circuit
under test, it has a power supply circuit which derive
it's power from the system. That supply circuit
regulate a +5V for the circuitry. This is why you
need a minimum of 40Vac before this instrument is
operational.
The rst circuit is the 3 Phase presence indicator,
which is shown by the individual Phase Presence
LCD Indicators and the second circuit is the three
phase sequence indicator by LCD indication.
3 Phase Presence Indication circuit:
The voltage measured between phases is utilized
to trigger the corresponding Phase Presence LCD
indication. Once that voltage is high enough, it's
presence is shown on the LCD Indicator.
3 Phase sequence indicator circuit:
The sequence of these measured voltages are feed
into a digital circuit which compare which phase
sequence to indicate and indicate it on the LCD.
An oscillator clock the LCD to increase it's life
duration.
FUSE 1
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9. Specications
ELECTRICAL
Determination of the Phase Presence
Nominal Voltage for Phase Presence Indication (the
voltage required for the LCD L1, L2, L3 indicators to
come on).................. From 40Vac to 500Vac.
Frequency Range.....From 15Hz to 400Hz.
Determination of the Phases Rotary Field
Direction:
Direction Indication by LCD Display (the voltage
required to have the LCD Direction Arrows to
indicates and the L1L2L3 or L3L2L1 indicators to
show)........................From 40 to 500Vac.
Frequency Range.....From 15Hz to 400Hz.
Protection
Over Load.................700V (between all terminals)
Over Voltage.............Class III - 700V towards
ground.
Fuses........................2 x 0.5A/500V, 5 x 20mm,
HBC,500V Fast Blow
General
Current Consumption...
Max. 3 mA
MECHANICAL
Size...........................150(L) x 72(W) x 33.8(D)mm
Material.....................Polycarbonate / ABS
Weight .....................Approx. 158.5g (less soft pouch)
Display......................Liquid Crystal Display
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ENVIRONMENTAL
Operating temperature Range :
1 °C to + 55 °C not in full sun!!!
Storage Temperature:
-20 °C to + 70 °C
CLEANING
Clean the instrument case with an anti-static cleaner
and wipe with dry cloth.
10. Limited Warranty
We warrant the product manufactured by us to be free
from defective material or factory workmanship and
agree to repair or replace this product which, under
normal use and service, disclose the defect to be the
fault of our manufacturing, with no charge for parts
and service. If we are unable to repair or replace this
product, we will make a full refund of the purchase
price.
Consult the user's manual for proper instruction
regarding use of this instrument.
Our obligation under this warranty is limited to
repairing, replacing or making refund of this test
equipment which proves to be defective within twelve
months from the date of original purchase.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
-14-
This warranty does not apply to any of our products
which have been repaired or altered by unauthorized
persons in any way so as, in our sole judgement, to
injure their stability or reliability, or which have been
subject to misuse, abuse, misapplication, negligence
or accident or which have had the serial numbers
altered, defaced or removed.
Accessories, not of our manufacture used with this
product, are not covered by this warranty.
All warranties implied by law are hereby limited to a
period of twelve months, and the provisions of the
warranty are expressly in lieu of any other warranties
expressed or implied.
The purchaser agrees to assume all liability for any
damages or bodily injury which may result from the
use or misuse of the product by the purchaser, or
it's user, his employees, or others, and the remedies
provided for in this warranty are expressly in lieu of
any other liability we may have including incidental or
consequential damages.
We reserve the right to discontinue models at any
time, or change specication, price or design, without
notice and without incurring any obligation.
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