Sealey TA300 - Manual (Page 2)

Item Description (Fig.1)
1. “HOLD” button.
After “Hold” button is pressed, the present reading will be held in the display.
2. “LIGHT” button.
To enable spotlight function, press “Light” button.
To disable, press the “Light” button again.
3. “SELECT” button.
When meter is in the Vdc range press the “Select” button to change to
the Vac range, press “Select” again and the meter will return to the Vdc range..
When the meter is in the resistance range press the “Select” button to change to
to diode range. Press “Select” again, for continuity range. Press “Select”
again for capacitance range.
When the meter is in frequency range, press the “Select” button for
duty cycle.
4. “POWER” button.
The “Power” button is used for switching the meter on.
Press “Power” again to turn the meter off.
5. “FUNCTION” switch.
Use “Function” switch to select between Vac, Vdc, resistance,
capacitance, frequency, duty cycle, continuity test, audible continuity
and diode test.
6. Test probe. (+Test Probe)
7. Test lead. (-Test Lead)
8. Crocodile clip.
9. Cigarette lighter adaptor.
1
2
3
5
6
4
7
8
9
DC VOLTAGE
Range Resolution Accuracy
400mV 0.1mV
4V 1mV ± (0.8%+4)
40V 10mV
400V 100mV
600V 1V ± (1%+4)
RESISTANCE
Range Resolution Accuracy
400 Ω 0.1 Ω ± (1.2%+2)
4k Ω 1 Ω
40k Ω 10 Ω ± (1%+2)
400k Ω 100 Ω
4M Ω 1k Ω ± (1.2%+2)
40M Ω 1 0k Ω ± (1.5%+2)
CAPACITANCE
Range Resolution Accuracy
4nF 1pF ± (25%+5)
40nF 10pF
400nF 100pF
4µF 1nF ± (10%+5)
40µF 1nF
100µF 100nF
DUTY CYCLE
Range Resolution Accuracy
0.1% - 99% 0.01% ± (2.5%+4)
DIODE
Range Resolution
Open-circuit Voltage:
1mV About 1.5V.
Forward voltage:
About 0.5 - 0.8V
FREQUENCY
Range Accuracy
9.999Hz
99.99Hz
999.9Hz
± (1.5%+4)
9.999kHz
99.99kHz
999.9kHz
10MHz
AC VOLTAGE
Range Resolution Accuracy
4V 1mV
40V 10mV ± (0.8%+6)
400V 100mV
600V 1V ± (1.2%+6)
CONTINUITY
If < 50 Ω , the buzzer will sound
Accuracy is specified for a period of one year after calibration and at 23 ± 5°C with relative humidity up to 75%.
Accuracy specifications take the form of:
± (% of Reading + number of least significant digits).
Input impedance: 10 Ω
Overload protection: 250Vdc or rms ac
Input voltage range: 0.5 - 50 Vp-p
Note: When the resistance is between 50 Ω and
120 Ω, the buzzer may or may not sound. When
the resistance is more than 120 Ω , the buzzer
will not sound.
Input voltage range: 0.5 - 50 Vp-p
Overload protection: 250Vdc or rms ac
Input impedance: 10M Ω
Frequency response: 40 - 400\Hz
3. SPECIFICATION
TA300 - 1 - 310807
Fig.1