Volth S-11 User manual

S-11
Digital Multimeter Operating Instruction
Digital Multimeter
Operating Instruction
S-11
S-11
S-11

I. General introduction
Welcome to use this product!
This product is one kind of 3 6/7 portable multipurpose automatic measuring
range instrument, may measure the AC/ DC voltage, the AC/ DC electric current, the
resistance, the frequency, the electric capacity, the test for pass or break, the diode
parameter and so on. The measuring appliance is loaded with guards against the surge
electric discharge, protect the appliance to be more effective. This measuring appliance
structure is exquisite,the operation is easy, it is your ideal test service tool!
II. Safety Rules and Notes
The design of this measuring appliance conforms to the safety standard of
IEC61010-1. Please read this handbook carefully before use.
2.1 notes on security mark
Warning, be careful!
Danger of being hit by high-pressured electric!
Dual insulation protection.
2.2 when measure, do not surpass the greatest stipulated input value.
2.2 do not surpass 10V voltage to the input end, except the voltage grade
2.4 In the process of measuring, do not turn switch to change the measuring range at
random, in case to destroy the measuring appliance.
2.5 The measuring appliance can display the mark while the voltage is bigger than
DC60V and AC30V, remind the user that the measured voltage has surpassed the
safety voltage, please operate carefully.
2.6 measuring appliances should avoid the straight sunlight, the high temperature, and
moisture.
2.7 after use, must release the power switch to turn off the power
2.8 if it doesn’t use for a long time, should take out the battery, in case the battery leaks
todamage the parts.
III. Features
3.1 General Features
3.1.1 take the CMOS big scale integrated circuit as the core, in AC / DC voltage, the
AC/DC electric current, the resistance, the frequency and the electric capacity
measure it can automatically transform the measuring range, making it more
convenient.
3.1.2 greatest display: 6000 Counts (3 6/7)
3.1.3 has the function of back light, data hold, the maximum/ minimum value hold
measure.
3.1.4 automatic cathode display: Displays " - "
3.1.5 batteries insufficient display: Displays “ ”
3.1.6 Auto power OFF
After turning on the instrument and without turning the function switch or
pressing any button, the instrument will automatically enter into sleep mode after

10 minutes,to save battery power.when it is in the sleep mode you can press the
SELECT key to wake up the instrument. If you don't need the automatic sleep mode,
you should hold down the SELECT key to turn on the instrument, and then the symbol
" " will not be display on the LCD.
3.1.7 working condition : 0°C~40°C, 75%RH (max)
3.1.8 storage environment : -10°C~60°C, 80%RH (max)
3.1.9 battery : 9V(6F22 or equivalent)
3.1.10 external dimensions : 191 (length) 94 (width) 49 (height) mm.
3.1.11 weight : approximately 400g (contain battery)
3.2 technical index
3.2.1 DCV
Input resistance : 10MΩ. Overload protection : DC/AC peak value1000V.
3.2.2 ACV
Input resistance : 10MΩ. Frequency : 10Hz~1kHz (Warning : Frequency for square
wave accuracy is specified from 10Hz to 400Hz). display : TRUE RMS ( sinusoidal
waveform RMS calibration). Overload protection : 250V at mV range, DC1000V or
peak value AC1000V at V range.
3.2.3 DCA
Overload protection : μA/mA : F1 A/250V with fuse, 10A : F10 A/250V with fuse.
greatest input electric current : 10A (less than 10 seconds). voltage drop measure：
full measure range is 600mV.
Range Accuracy Resolution
600μA ± (1%+5d) 0.1μA
6000μA 1μA
60mA ± (1.5%+5d) 0.01mA
600mA 0.1mA
6A ± (2%+5d) 1mA
10A 10mA
Range Accuracy Resolution
600mV ± (1.2%+5d) 0.1mV
6V 1mV
60V 10mV
600V 100mV
700V ± (1.5%+5d) 1V
Range Accuracy Resolution
600mV ± (0.5%+5d) 0.1mV
6V 1mV
60V 10mV
600V 100mV
700V ± (0.8%+5d) 1V

3.2.4 ACA
Overload protection：μA/mA:F1 A/250V with fuse, 10A F1 0A/250V fuse. Voltage drop
measure：full measure range is 600mV(10A is 100mV). Frequency : 10Hz~1kHz
(Warning：Frequency for square wave accuracy is specified from 10Hz to 400Hz).
display：TRUE RMS(sinusoidal waveform RMS calibration).
greatest input electric current：10A (less than 10 seconds). voltage drop measure
:full measure range is 600mV.
3.2.5 resistance Ω
Overload protection：250V virtual value. Plough voltage approximately 0.5V.
3.2.6 CAP
Overload protection：250V virtual value.
3.2.7 FREQ
Overload protection：250Vvirtual value, input delicacy : 1V.
Range Accuracy Resolution
600μA ± (1%+5d) 0.1μA
6000μA 1μA
60mA ± (1.8%+5d) 0.01mA
600mA 0.1mA
6A ± (2.5%+5d) 1mA
10A 10mA
Range Accuracy Resolution
600Ω ± (0.5%+5d) 0.1Ω
6KΩ 1Ω
60KΩ 10Ω
600KΩ 100Ω
6MΩ 1KΩ
60MΩ ± (1.0%+5d） 10KΩ
Range Accuracy Resolution
10nF ± (2%+5d) 0.001nF
100nF 0.01nF
1uF 0.1nF
10uF 1nF
100uF 10nF
1000uF 100nF
10mF ± (3%+5d）1uF
Range Accuracy Resolution
10Hz ± (0.25%+3d) 0.01Hz
100Hz 0.1Hz
1kHz 1Hz
10kHz 10Hz
100kHz 100Hz
1MHz 1k Hz
10MHz 10k Hz

Caution：if the measured frequency is above 30V, please press “Hz/DUTY” key at AC
electric voltage measuring range to get to the frequency function, then carry on measure.
3.2.8 occupancy and vacancy ratio
Overload protection: 250Vvirtual value.
3.2.9 temperature (general type)
Overload protection 250V.
3.2.10 Diode positive voltage
3.2.11 Connection & disconnection measure
IV. Application method
4.1.1 RANGE key,
RANGE key for the automatic / manual measuring range key, in the trigger
movement way, before start the device it is at the automatic measuring range.
It changes to manual measuring range when press it. At manual measuring
range it goes upward one gear with one push, after it reaches the top gear, it
goes downward to the lower-gear gradually with continuous press, and it takes
turns. If press this key over 2 seconds, it changes back to the automatic
measuring range condition.
4.1.2 DH/LIGHT key
The DH/LIGHT key is maintenance / the back light control key for the reading.
A.DH reading maintenance in the trigger movement way, when touches the key
lightly, display value is locked and maintained invariably, and shows " DH "on the
monitor; When presses again, the fixed condition is relieved, enters into the usual
measure condition. B.LIGHT: back light controls press LIGHT key more than
2 seconds to open the back light control signal, opens after the back light signal
presses more than 2 seconds again switches off the back light control signal.
After opening the back light, if don’t press the LIGHT key for more than 2 seconds,
it will shut off automatically after 10 seconds
4.1.3 SELECT key The SELECT key: function choice key, in the trigger movement way.
may select the pattern: Chooses DC or AC under the DC/AC condition; Chooses
under the temperature measure condition it needs . in the DC/AC Condition
Measure range Accuracy Resolution
1% ~ 99% ±(0.5%+3d) 0.1%
Function range Resolution Accuracy
TEMP -30~400°C 1°C ±1.0% ± 4°C
400~1000°C 1°C ±1.0% ± 4°C
-40~400°F 1°F ±1.0% ± 4°C
-400~1832°F 1°F ±1.0% ± 4°C
Display of similar diode positive voltage. Measuring condition：positive DC electric
current 2mA,reverse DC voltage approximate 3.2V.
When the transited resistance is smaller than about 50 Ω ,the buzzer beeps.
Measuring condition：plough voltage is about 0.5V.

choose, in temperature measure condition choose C°or F°. in the Diode/Beeper
condition choose Diode or Beeper, in the Ohm/Cap/ Diode/ Beeper condition
choose Ohm, Diode or Beeper.
4.1.4 Hz/DUTY key
Hz/DUTY is a choose key of frequency / duty ratio, worked as the way of triggering.
Under the pattern of frequency survey, pressing the key can choose the pattern
of frequency or duty ratio. Under the pattern of AC voltage or AC electric current,
pressing the key can choose the survey pattern of voltage/frequency/duty ratio or
electric current.
4.1.5 MAX/MIN value hold key
1)Pressing the MAX/MIN key namely enters the MAX pattern, which always
maintains the maximum value of measurement.; And the second pressing of the
key namely enters the MIN pattern, which always maintains the minimum value of
measurement; Pressing again enters the MAX-MIN pattern ,duplicates above
circulates. After entering the pattern of MAX/MIN will automatically enters the
manual measuring range,The time of pressing the MAX/MIN key more than
2 minutes will lead to the quit of MAX/MIN measuring pattern.
4.2 DC/alternating voltage measure
turn the Range switch to V and this time the measuring appliance is set as the DC
voltage measuring range of automatic shift gears. Insert the black pen into COM jack,
and the red table pen into V/Ω/Hz jack. For example, the measuring of DC voltage is
to merge the table pen at the beginnings and ends of the measured electric circuit,
which can directly read the number on the liquid crystal display monitor. If one wants
to measure the alternating voltage, press SELECT key to the pattern of alternating
voltage, and then merge the table pen with the measured electric circuit to read the
showed number. If manually choose measuring scope is needed, press RANGE key
to choose.
4.3 Measurement of alternating/DC electric current
turn the Range switch to the range of electric current, this time the measuring
appliance is set as the direct current automatic shift gears in advance. Insert the
black table pen into COM jack, and the red table pen into 10A orμA/mA jack. If one
wants to measure DC, one can concatenate the table pen with the measured electric
circuit, which can directly read the number on the liquid crystal display monitor; If one
wants to measure alternating current, press SELECT key to alternating current
measuring range, then concatenate the table pen with the measured electric circuit
to read the showed number. If one needs to choose measuring scope manually,
press RANGE. If one does not know the measured electric current scope before
survey, one should set the range key to the highest measuring range and adjust
downward by the files. When the display monitor only displays OL, that is to say,
the measured electric current has surpassed the measuring range and the switch of
measuring range needs to move the high one grade. μA/mA jack represents that the
maximum input current is 600mA. The overload inputs can burn the internal installation
fuse out and should be replaced immediately. 10A jack, without a fuse, the time of
measuring should be less than 10 seconds to avoid the heating of lines, which would
influence accuracy.

4.4 Resistances
1) Adjust the revolving the Range switch to Ω position, and this time the measuring
appliance will be set for the resistance measuring range.
2) Insert red table pen into the V/Ω/Hz jacks, black table pen into " COM " jack.
3) Connect the pen with the beginnings and ends of the test circuit to read the
resistance value.
4) If the manual choice measuring range scope is needed, press RANGE to choose.
When the table pen is overloaded input, display monitor can display " OL ".
4.5Measurement of forward voltage of diode
(1)turn the Range switch to “ ”position. press “SELECT” to measuring range
(2)insert the red pen to “V/Ω/Hz” jack,insert the black pen to COM” jack. (red pen “+”)
(3)connect the test pen to the two ends of the measured to read positive voltage.
(4)when the diode is reverse connected or the input end leads the way, the display
monitor can display " OL ".
(5)the diode does not have the simulation strip display.
4.6Connection & disconnection measure
(1)turn the Range switch to “ ” position, press“SELECT”key to measuring
range.
(2)insert red pen to “V/Ω/Hz” jack,insert black pen to“COM” jack.
(3)if the measured resistance is less than about 50Ω，the buzzer will beep. This is
the pass or break measure.
Caution:
a. when the input end leads the way, it displays “OL”.
b. the measured circuit should be measured under the off-power condition,
because any overload signal would make the buzzer beep, thus cause wrong
measure.
4.7capacitance measur
(1)turn the Range switch to “ ”position . General type press “SELECT” key
to CAP measuring range.
(2)insert the red pen to “V/Ω/Hz” jack,insert black pen to “COM” jack.
(3)connect the test pen to the two ends of the measured capacitor,could get the
capacity value.
(4)capacity position can not set the measuring range manually, no simulation strip
display. when the capacity value is big, the measure may need about 10 seconds.
4.8 frequency/DUTY measure
(1)turn the Range switch to Hz measuring range.
(2)insert red pen to “V/Ω/Hz/CAP”jack,insert black pen to “COM” jack.
Warnings! Before the survey of resistance, one must guarantee that the
measured electric circuit or part does not have the voltage.
Warnings! When measure the electric capacity, must guarantee the
measured capacitor has sent the electricity out, if the big electric
capacity contains the oversized non- electric capacity ingredient,
possibly affects the measuring accuracy.

4.4 Resistances
1) Adjust the revolving the Range switch to Ω position, and this time the measuring
appliance will be set for the resistance measuring range.
2) Insert red table pen into the V/Ω/Hz jacks, black table pen into " COM " jack.
3) Connect the pen with the beginnings and ends of the test circuit to read the
resistance value.
4) If the manual choice measuring range scope is needed, press RANGE to choose.
When the table pen is overloaded input, display monitor can display " OL ".
4.5Measurement of forward voltage of diode
(1)turn the Range switch to “ ”position. press “SELECT” to measuring range
(2)insert the red pen to “V/Ω/Hz” jack,insert the black pen to COM” jack. (red pen “+”)
(3)connect the test pen to the two ends of the measured to read positive voltage.
(4)when the diode is reverse connected or the input end leads the way, the display
monitor can display " OL ".
(5)the diode does not have the simulation strip display.
4.6Connection & disconnection measure
(1)turn the Range switch to “ ” position, press“SELECT”key to measuring
range.
(2)insert red pen to “V/Ω/Hz” jack,insert black pen to“COM” jack.
(3)if the measured resistance is less than about 50Ω，the buzzer will beep. This is
the pass or break measure.
Caution:
a. when the input end leads the way, it displays “OL”.
b. the measured circuit should be measured under the off-power condition,
because any overload signal would make the buzzer beep, thus cause wrong
measure.
4.7capacitance measur
(1)turn the Range switch to “ ”position . General type press “SELECT” key
to CAP measuring range.
(2)insert the red pen to “V/Ω/Hz” jack,insert black pen to “COM” jack.
(3)connect the test pen to the two ends of the measured capacitor,could get the
capacity value.
(4)capacity position can not set the measuring range manually, no simulation strip
display. when the capacity value is big, the measure may need about 10 seconds.
4.8 frequency/DUTY measure
(1)turn the Range switch to Hz measuring range.
(2)insert red pen to “V/Ω/Hz/CAP”jack,insert black pen to “COM” jack.
(3)connect the test pen to the measured circuit, get the frequency value. press
Hz/DUTY”key，it displays“Hz”,change it to “%” to get the ratio.
Caution :
(1)Frequency grade can not set measuring range manually, no simulation strip display.
(2)If the measured frequency is above 30V, please press “Hz/DUTY” key at “ACV”
measuring range to frequency function for measure. By this method, it can bear
700V voltage，in case the voltage is too high to damage the meter . it can reduce
the voltage to the best range IC is able to deal.
4.9temperature measure Turn the
range switch to C°/F°,insert the k type black plug to “COM”jack,insert red one to
“V/Ω/Hz ”jack,the meter displays the temperature now .
Caution :
When the meter without inserted with temperature tool, it displayd environment
temperature（normal temperature）.Attached K type WRNM-010,the temperature
is 250C° (482 F°).
V. Maintenance
5.1 when the meter displays “ ”，must replace the battery. Open the battery
cover, replace with the same type new battery to keep it work well.
5.2keep the meter and test pen clean, dry and not damaged, could use the clean cloth
or cleanser to clean the cover，do not use abrasive or solvent.
5.3avoid damage, shake, shock，avoid high temperature and strong magnetic field.
5.4should be corrected at least once per year
VI. Accessories
6.1Test lead: 1 set
6.2 users manual: 1 piece
6.3 Temperature sensors: 1 set
6.4 cloth bag: 1piece
Warnings! before open the cover or the battery cover, cut off the power
source and test pen and any input signal, in case electric shock.