Hellermann Tyton T820 Bedienungsanleitung

T820

DIGITAL MULTIMETER

OPERATION MANUAL

Instruments

1. General

The instrument is a pocket digital

multimeter, which is used to measure DCV,

ACV, and DCA, resistance, diode and

continuity test. It is an ideal tool for labs,

household and wireless enthusiasts.

2. Safety Notes

1. Do not input a limit value over the range

when measuring.

2. When measuring voltage higher than

36V DCV, 25V ACV, check the

connection and insulation of the test

leads to avoid electric shock.

3. Keep the test leads away from the testing

point when converting function and range.

4. Don’t add voltage to the input terminal

when measuring resistance.

3. Specification

1. General Features

1-1. Displaying: 22mm digit height LCD

display.

1-2. Max. Indication: 1999 (31/2) auto

polarity indication.

1-3. Sampling rate: approx. 3 times/ sec

1-4. Over Range Indication: MSD displays

"1"

1-5. Low Battery Indication: " "

symbol displays.

1-6. Operation Environment: (0～40)℃,

relative humidity ＜80% .

1-7. Power: 9V battery (NEDA1604/6F22

or equivalent)

1-8. Measurement: 145×85×30mm

(Length×Width×Height)

1-9. Weight: Approx. 170g (including a 9V

battery)

1-10. Accessories: Operation Manual,

Product Certificate, Packing box, Test leads

and a 9V battery.

2. Technical Features

Accuracy: ± (a%×reading+d)

Surrounding: (23±5)℃, relative humidity

＜75%. One year warranty since the date of

manufacture.

2.1 DCV

Range

Accuracy

Resolution

200mV

(0.5%+4)

100uV

1mV

20V

10mV

200V

100mV

600V

(1.0%+5)

Input impedance: 1MΩfor all ranges.

2.2 ACV

Range

Accuracy

Resolution

200V

100mV

600V

(1.2%+10)

Input impedance: 1MΩ.

Frequency Response: (40～200)Hz

2.3 DCA

Range

Accuracy

Resolution

20uA

(1.5%+3)

0.01uA

200uA

0.1uA

2mA

1uA

20mA

10uA

200mA

100uA

10A

(2.0%+5)

10mA

Max. Input current: 10A (no more than 6

seconds)

Overload Protection: 0.2A/250V;

10A/250V fuse.

2.4 Resistance

Overload Protection: 250V DC/AC peak

value

Note: At range 200Ω, first short-circuit the

meter pens to measure the wire

Range

Accuracy

Resolution

200Ω

(0.8%+5)

0.1Ω

2kΩ

(0.8%+3)

1Ω

20kΩ

10Ω

200k

100Ω

20M

(1.0%+15)

10kΩ

resistance. Then subtract it from the

real measurement.

2.5 Diode and continuity test

Range

Display

Testing

Condition

Forward

voltage drop of

diode

Forward

DCA is

approx.

1mA，

Backward

voltage is

apporx.3V

Buzzer makes

a long sound

while

resistance is

less than (70±

20)Ω

Open

voltage is

approx.3V

Overload Protection: 250V DC/AC

peak value

2.6 DC Voltage Measurement

1. Apply the black test lead to "COM"

terminal and the red test lead to “V/Ω”

terminal.

2. Set the knob to a proper DCV range, and

connect the test leads crossly to the

electric circuit under test. LCD displays

polarity and voltage under test connected

by the red test lead.

Note:

1. Firstly, the knob should be set to the

highest range if users have no idea about

the range of voltage under test. Then

select the proper range based on display

value.

2. If MSD displays “1", it means the meter

is over range. Please set the knob to a

higher range.

3. Do not attempt to input voltage over

600V. Otherwise, it may damage the circuit

of the meter.

4. Avoid touching high voltage circuit

when measuring it.

2.7 AC Voltage Measurement

1. Apply the black test lead to "COM"

terminal and the red test lead to “V/Ω”

terminal.

2. Set the knob to a proper ACV range, and

connect the test leads crossly to the electric

circuit under test.

Note:

1. Firstly, the knob should be set to the

highest range if users have no idea about

the range of voltage under test. Then

select the proper range based on display

value.

2. If MSD displays “1", it means the meter

is over range. Please set the knob to a

higher range.

3. Do not attempt to input voltage over

600Vrms. Otherwise, it may damage the

circuit of the meter.

4. Avoid touching high voltage circuit

when measuring it.

2.8 DC Current Measurement

1. Apply the black test lead to "COM"

terminal and the red test lead to “V/Ω”

terminal (max. 200mA), or put the red

test lead to "10A" terminal (max. 10A).

2. Set the knob to a proper DCA range, and

connect the test leads in series to the

electric circuit under test. LCD displays

polarity and current value under test

connected by the red test lead.

Note:

1. Firstly, the knob should be set to the

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