Volth S-36 User manual

S-36

1000A AC Auto-range Clamp Meters

1000A AC Auto-range

Clamp Meters

S-36

Make industrial job easy with In-rush current

I. Introduction

Welcome to use this product. The updated BM802A adopts high-performance MCU

processor,it is Great Value as has high reliability,security, automatically setting range

funcition,hand-held clamp meter etc.. the product has a large digital display, full range

overload protection, data-hold function, undervoltage indication, auto shut off function,

it has TRUE RMS measurement function which can accurately measure frequency

voltage, non-sinusoidal voltage and inrush current measurement function which can

measure inrush current about 80mS RMS, it also has temperature measurement

function which can accurately measured -50~1000°C, the instrument is suitable for

frequency-converting power supply, air conditioning, refrigeration equipment such as

refrigerators, motor performance test, It is more excellent for a new generation of

practical electrical measuring instrument .

This product is ideal instrument for test, maintenance and repais in college, smelting,

communications, manufacturing, petroleum, electric power, national defense,electronic,

electric power equipment .

II. Safety standard

The meter in structure complies with the safety requirements of ICE61010-1. Read

the instruction carefully as follows before you use the meter:

1. When measuring voltage, AC or DC voltage should not be more than the peak

voltage (DC / AC 1000V) of the meter.

2. Voltage of less than 36V is safety voltage. When the voltage is more than

DC 51V or AC36V, the leads should be checked. The test lead should be

connected correctly and their insulating property should be under excellent

status against electric shock.

3. When change of functional measuring range, the test lead should be away from

test point.

4. It is suggested that for safety the functions and range should be selected correctly

although protective function for the full measuring range exists.

5. When measurement of current, the input current shouldn’t be more than the

maximum current labeled on input end.

6. Safety symbols:

Warning!

risk of high voltage and electric shock!

Double insulated.

III. Features

3.1 General

3.1.1 The meter is based on CMOS large scale IC and can automatically changed

measuring range for measurement of AC/DC voltage, AC, resistance,

frequency and capacity, which makes the meter easy to be used.

3.1.2 Display mode: Display by LCD.

3.1.3 Maximum display: 3999

3.1.4 Maximum span of jaw : 52mm.

3.1.5 Auto negative polarity indication: Displaying “-”.

3.1.6 Lack of battery power: Displaying “ ”.

3.1.7 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 DH key to

turn on the instrument, and then the symbol " " will not be display on

the LCD.

3.1.8 Work environment: 0°C-40°C, 75%RH.

3.1.9 Storage environment : -10°C-60°C, 85%RH. 3.1.10 battery : 3V (AA1.5V×2)

3.1.11 External dimensions: 249 (L)×89 (W)×38 (H)mm

3.1.12 Weight: About 360g (including battery’s weight)

3.2 Technical speciﬁcations

Accuracy：±(% reading + digit); calibration term is one year. Ambient temperature

: 23°C±5°C; Ambient humidity: ≤70%RH

3.2.1 DCV

3.2.2 ACV

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 ACA

AC Conversion Type：TRUE RMS responding, calibrated readings consistent with

sinusoidal waveform RMS. Frequency Range:50~60Hz。

Range Accuracy Resolution Input impendance

400mV ±(0.8%+2d) 0.1mV About 10MΩ

4V 0.001V About 10MΩ

40V 0.01V About 10MΩ

400V 0.1V About 10MΩ

1000V ±(1%+2d) 1V About 10MΩ

Range Accuracy Resolution Input impendance

400mV ±(1.0%+5d) 0.1mV About 10MΩ

4V 0.001V About 10MΩ

40V 0.01V About 10MΩ

400V 0.1V About 10MΩ

700V ±(1.5%+5d) 1V About 10MΩ

Range Accuracy Resolution

4A ±(2%+5d) 1mA

40A 10mA

400A 100mA

1000A 1A

3.2.4 Resistance Ω

Overload protection: effective value 220V

3.2.5 Capacitance

Overload protection: effective value 250V

warning：There is about 20pF dead zone in the 10nF,capacitance below 20pF can not

be measured

3.2.6 Frequency

Overload protection: effective value 250V . Input sensitivity RMS: effective value 1V .

NOTE: If the voltage of the frequency being measured is above 30V,set the rotary function

switch to the ACV measured function and press “SELECT”key to enter voltage frequency

measured function,in order to avoid demage the instrument.

3.2.7 Duty

Overload protection: effective value 250V . input sensitivity RMS：1V

Range Accuracy Resolution

400Ω ±(1%+3d) 0.1Ω

4kΩ 1Ω

40kΩ 10Ω

400kΩ 100Ω

4MΩ 1kΩ

40MΩ ±(1.5%+3d) 10kΩ

Range Accuracy Resolution

10nF ±（2.5%+5d）0.001nF

100nF ±（2.5%+5d）0.01nF

1uF 0.1nF

10uF 1nF

100uF 10nF

1000uF 100nF

10mF ±（3.0%+5d）1uF

Range Accuracy Resolution

1%~99% ±（0.5%+3d）0.1%

Range Accuracy Resolution

100Hz ±（0.3%+3d）0.01Hz

1kHz 0.1Hz

10kHz 1Hz

100kHz 10Hz

1MHz 100Hz

10MHz 1kHz

40MHz 10kHz

3.2.8 Temperature

Temperature sensor: K WRNM- 010 bare contact thermojunction

Overload protection：effective value 250V

3.2.9 Forward voltage drop of diode

Displaying approximate forward voltage values of diode. Measuring condition:

forward direct current is 1.5mA; opposite DC voltage is about 3 V.

3.2.10 Continuity Test •)))

In the case that the resistance between two tested points is less than about

90Ω±20Ω, the buzzer will bring up sound. Test condition:Open-circuit voltage

is about 0.5V.

IV. Operation

4.1 Instruction for control panel

(1) jaws

(2) Trigger

(3) Rotary switch :This switch is used to select functions such as current.voltage,

capacitance.resistance,temperature,frequency,forward voltage drop of diode,

continuity and turn on/off the meter.

(4) “SELECT” button: When press the key continuously, change the range of all

function for a proper range you need.

(5) “RANGE” button: One may change the measuring range by pressing this

button, press this key to cycle from small to large range of each function

(6) INRUSH:measuring Inrush voltage, current key,in AC measuring function press

the key,it will measure the Inrush value, and show the "INR" symbol in the

LCD, INRUSH function can measure current or voltage with the minimum period

up to valid values80mS,in the inrush mode, instrument automatically enter the

manual range function, if the measurement range is unknowed , press RANGE

key to the maximum range, ﬁrst press the INRUSH button again inrush

measurement will be resumed, and the "INR" symbol disappear.

(7) “DH” button: The user may hold the present reading and keep it on the display

by pressing the “DH” button. Press the button again to concel the data-hold

function

(8) LCD display

(9) “VΩ”jack: This is positive input terminal for voltage,resistance

frequency,temperature,capacity and diode.

(10) “COM” jack :This is negative(ground)input terminal

(11) Barrier

Range Accuracy Resolution

-50〜300 °C ±1.0%±5 1°C

301〜1000 °C ±1.0%±5 1°C

-58〜600 °F ±1.0%±5 1°F

601〜1832 °F ±1.0%±5 1°F

4.2 Measurement of AC/DC voltage

Turn the Rotary switch to “V”. Then plug black lead in “COM” socket, and plug red

lead in “V/Ω” socket. connect the test lead with the two ends of the circuit and then

directly read the reading on the LCD display

NOTE : 1. The inrush measuring funciton can only be change range manually, before

the test,if the voltage is unknown, manually set the measuring range to 700V and then

press the PH key to enter the INRUSH measuring function.

2. Don't measure the peak voltage more than 1000V, otherwise it might

damage the instrument ,if the screen only displays OL, it means that the tested voltage

is higher than DC1000V or AC700V.

3. Presse the SRLECT key in the ACV function to enter the voltage frequency

measurement mode, it can measure the the frequency range from 10Hz to 100KHz with

voltage higher than AC 30V~700V.

4.3 AC current measurement

Turn rotary switch to“~A” range. Press the trigger, opens the mouth of the clamp,

and hold wire ( put the wire in the clamp center ), read the reading directly

NOTE : 1. INRUSH measuring can only be manually setting range. when the current

value being measuring is unknow, turn the rotary switch to 1000A and press INRUSH

key to entry INRUSH measuring funciton.

2. When measuring current ,the clamp might hold only one wire,it is null to

catch one more another wire

4.4 Measurement of resistance,continuity and forward Voltage drop of diode

Warning! When measurement of resistance or continuity, make sure that no

voltage is with the circuit and components.

(1)Turn the Rotary switch to the range of Ω/•)))/ . At this time, the meter is reserved

at resistance range.

(2)Plug red lead in “V/Ω” socket, and plug black lead in “COM” socket

(3)Connect the leads with the two ends of the circuit or component, and then read

the value of resistance.

(4)Press SELECT key to change the range of •))) When the resistance measured is

less than about 90Ω±20Ω, the buzzer sounds. This is continuity testing.

(5)When the test lead is under open-circuit or input-overload status, the display will

display “OL”.

(6)When measuring diode,press the SELECT key to the function of .

(7)Connect the test lead with the two ends of the diode, and then read the value

of forward voltage drop value.

(8)When the test lead is under reverse connection or open-circuit status, the display

will display “OL”.

NOTE : a)When the resistance measured is above 1MΩ, it needs several seconds

for the reading to be stable, it is normal when measuring high resistance.

b)When measuring high resistance, insert the resistance pin directly into

the V Ω and COM jack, so as to avoid interference

c)When measuring resistance in a circuit make sure the power to the circuit is

turned off and all capcitors are discharged,

4.5 Measurement of capacitance

Warning! When measurement of capacity, the measured capacitor should

be completely discharged.

(1)Turn the Rotary switch to “CAP” function. Plug red lead in “V/Ω” socket, and plug

black lead in “COM” socket. Warning:The range for capacitor can’t be set manually.

When the capacity value is large, the time for measurement may be a little longer.

a. Do not take an external voltage or charged capacitor (especially a large

capacitor) connected to the test terminal

b. When a large capacitor is serious leakage or breakdown, the measurement

value may be instability

4.6 Measurement of frequency / DUTY Ratio

(1) Turn the Rotary switch to “Hz” function.if you want to measure DUTY Ratio, Press

SELECT key to switch

(2) Plug red test lead in “V/Ω” terminal and plug black lead in “COM” terminal.

(3) Connect the leads with measured circuit and then read the reading.

(4) when the voltage exceeding 30V, please enter the Voltage frequency measurement

mode by pressing the SELECT key in the “ACV” measurement function.

4.7 Measurement of temperature

Turn the Rotary switch to the function of temperature, then plug the cold end (plug

end) of temperature sensor to the V/Ω and COM socket(black end for COM socket

and red end for V/Ω socket). Place the working end (temperature end) of the

sensor on or in the measured object. Then read the temperature value (in°C) on the

°C display. If you need to measure that “°F”, presses the SELECT key to switch.

Caution : When the cold terminal of the sensor isn’t inserted into the

meter, the meter might display approximate environmental temperature.

K WRNM- 010 bare contact thermojunction has a limiting temperature of 250°C

(300°C for short time).

4.8 NON CONTACT VOLTAGE TESTING

Turn the Rotary switch to the “ ” function, then the LCD display NCV and ~ symble,

plug red test lead in the “V/Ω” terminal and black lead without being used,place the

red test lead near the electric line, switch,or socket,the phase metal terminal need

not to be connected,when the detected voltage is above AC RMS 110V,a reverse C

will be displayed on the LCD,the higer the testing voltage is ,the more reverse C will

be display,with buzzer alarm sounds more intensive.