Besantek BST-MT707 User manual

DIGITAL MULTIMETER AND
PHASE ROTATION TESTER
INSTRUCTION MANUAL
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

INDEX
1. INTRODUCTION.............................
2. SAFETY NOTES.............................
3. FEATURES.....................................
4. SPECIFICATIONS..........................
5. GENERAL.......................................
6. INSTRUMENT LAYOUT..................
7. MEASUREMENT.............................
8. MAINTENANCE..............................
PAGE
1
2
3
4-6
7
8-11
12-16
16-17

-1-
1. INTRODUCTION
NOTE
This meter has been designed and tested According
to CE Safety Requirements for Electronic Measuring
Apparatus, IEC / EN 61010-1 and other safety
standards. Follow all warnings to ensure safe
operation.
WARNING
READ "SAFETY NOTES" (NEXT PAGE) BEFORE
USING THE METER.
CAT IV -Is for measurements performed at the
source of the low voltage installation.
CAT III -Is for measurements performed in the
building installation.
CAT II -Is for measurement performed on circuits
directly connected to the low voltage
installation.
CAT I -Is for measurements performed on circuits
not directly connected to mains.

-3-
3. FEATURES
●4000 - count LCD.
●Auto ranging
●Voltage, Resistance, Current, Continuity,
Diode measurement
●Can measure Resistance up to 200.0 Mohm
●Checks a wide range of 3-phase
power sources (80~750VAC)
●Phase Rotation indication : clockwise
and counter-clockwise on LCD
●The LCD will show AC voltage
between phases and Phase Rotation
●Wide range for capacitance test:
0~40000μF(40.00mF)
●REL / Auto-Zero function
●MAX / MIN function
●VAHz function
●Frequency : 40.00 MHz
●Data hold function
●Over range indication
●Low battery detection
●Auto power off in 15 minutes
●Convenient stand for viewing
●Comply with EN 61010-1, CAT III 600V for the
range of 600V AC/DC
★ To disable the "auto power off" function, press
the "RNG" button and turn on the digital multimeter
simultaneously.

-4-
4. SPECIFICATIONS
AC Voltage :
Ranges Resolution Accuracy
400 mV 0.1 mV
±(1.0% rdg+5dgt)
4 V 1 mV
40 V 10 mV
400 V 100 mV
750 V 1 V
Input impedance : 10 MΩ
DC Voltage :
Ranges Resolution Accuracy
400 mV 0.1 mV
±(0.5% rdg+3dgt)
4 V 1 mV
40 V 10 mV
400 V 100 mV
1000 V 1 V
Input impedance : 10 MΩ
AC μA, mA :
Ranges Resolution Accuracy
400 µA 0.1 µA
±(1.2% rdg+5dgt)
4000 µA 1 µA
40 mA 0.01 mA
400 mA 0.1 mA
Overload Protection 0.5A/600V fast blow fuse for 400mA.

-5-
DC μA, mA :
Ranges Resolution Accuracy
400 µA 0.1 µA
±(1.0% rdg+5dgt)
4000 µA 1 µA
40 mA 0.01 mA
400 mA 0.1 mA
Overload Protection 0.5A/600V fast blow fuse for 400mA.
Continuity:
Range Audible threshold
400 Ω Less than 30 Ω
Diode :
Range Accuracy
2V ±(1.5% rdg+3dgt)
Resistance :
Ranges Resolution Accuracy
40 Ω 0.01 Ω
±(1.2% rdg+3dgt)
400 Ω 0.1 Ω
4 kΩ 1 Ω
40 kΩ 10 Ω
400 kΩ 100 Ω
4 MΩ 1 kΩ
40 MΩ 10 kΩ ±(2.0% rdg+4dgt)
200 MΩ 100 kΩ ±(2.3% rdg+4dgt)

-6-
Capacitance :
Ranges Resolution Accuracy
4 nF 1 pF
±(3.0% rdg+10dgt)
40 nF 10 pF
400 nF 100 pF
4 µF 1 nF
40 µF 10 nF
400 µF 100 nF
4 mF 1 µF
40 mF 10 µF
Frequency :
Ranges Resolution Accuracy
400 Hz 0.1 Hz
±(0.5% rdg+2dgt)
4 kHz 1 Hz
40 kHz 10 Hz
400 kHz 100 Hz
4 MHz 1 kHz
40 MHz 10 kHz
Phase Rotation:
Input voltage 80~750VAC
Frequency range 40~80Hz
Circuit structure All electronic (not mechanical)

-7-
5. GENERAL
●Dimensions :
188(L) x 90(W) x 54(D)mm
●Weight :
Approx. 346g (battey included)
●Power source :
1.5V (AAA) battery x 2
●Low Battery Indication :
When the " " sign blinks on the LCD, this means
the battery voltage drops below accurate operating
level.
●Operating temperature :
0°C ~ 40°C, 80% Max.
●Storage temperature & humidity :
-10°C ~ 50°C, 80% Max.
●Safety standard :
EN 61010-1 CAT III 600V
EN 61010-2-030
EN 61326-1
●Accessories :
Instruction Manual
Batteries
Test leads
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

-9-
(1) LCD
4000-count LCD with low battery indication.
(2) RNG Button
This is the Range button. Press the RNG button
to select the manual range mode and to turn off
the AUTO annunciator. The manual annunciator
will be turned on and the full scale range will be
changed. In manual range mode, each time press
the RNG button (less than one second), the range
increases and a new value is displayed. To exit
the manual range mode and to return to the AUTO
mode, press the RNG button for more than one
second.
※ AUTO mode = Auto ranging mode.
(3) " " HOLD Button
Pressing the HOLD button (HOLD annunciator
turns on) makes the meter stop updating the
reading on the LCD. This mode can be nested
in most of the special modes. Enabling HOLD
function in automatic mode makes the meter
switch to manual mode, but the full scale range
remains the same. HOLD function can be
cancelled by changing the measurement mode,
pressing the RNG button, or pressing the HOLD
button again.
(4) Function Rotary Switch
The function rotary switch is for selecting different
functions.
H

-11-
Press the REL button (less than one second)
again, the DMM will go back to the original mode.
The " " sign disappears.
(10) MAX & MIN Button
Press this button (less than one second) to enter
into the "MAX" mode, the "MAX" annunciator turns
on, and the LCD shows the maximum value.
Press this button (less than one second) again to
enter into the "MIN" mode, the "MIN" annunciator
turns on, and the LCD shows the minimum value.
Press this button for more than one second to go
back to the original mode.
(11) Hz & Button
●Select the function of ACV, ACmV, ACµA or
ACmA. Then press the Hz button for less
than one second to enter into the frequency
measurement mode.
Press the Hz button again (less than one
second), the DMM will go back to ACV, ACmV,
ACµA or ACmA measurement function.
●Select the function of ACV, press the
Hz / button for more than one second
to enter into the phase rotation testing mode.
Press the Hz / button again (more than
one second), the DMM will go back to ACV
measurement function.

-14-
(8) Phase Rotation test (PR)
Insert the BLACK test lead to L1(COM) terminal
and the RED test lead to L2, L3(V Ω Hz )
terminal for phase rotation test.
Switch to Vfunction, then press the SEL button
for ACV test. Then press the / Hz
button for more than one second to enter into the
"Phase Rotation" test mode, the "PR" sign starts
blinking on the LCD.
Connect the BLACK test lead(COM) to the rst
voltage source and the RED test lead to the
second voltage source. The "PR" sign will stop
blinking and it means the rst phase is locked.
Then connect the RED test lead to the third
voltage source within 5 seconds. The phase
rotation sequence will be determined, and the
" " or " " signs will be showed on the LCD
to indicate the phase rotation sequence.
Input voltage of phase rotation: 80~750VAC.
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

  
w


-16-
8. MAINTENANCE
a) Battery replacement :
When the low battery warning symbol " "
appears, change new batteries as follows :
(1) Disconnect the test leads from the multimeter
and turn off the power.
(2) Unscrew the battery cover and replace with
new batteries(1.5V AAA×2).
(3) Re-install the battery cover.
b) Fuse replacement :
(1) Disconnect the test leads from the multimeter
and turn off the power.
(2) Unscrew the battery cover and replace with
new fuse(0.5A/600V, 5×20mm).
(3) Re-install the battery cover.
Rotating Right L1 L2 L3
(clockwise)
Phase Rotation Indication
Rotating Left L1 L3 L2
(counter-clockwise)

U00
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com