CEN-TECH ITEM 98674 Operation Manual page 12

DIGITAL MULTIMETER
Input Impedance: 10M
Max. Input Voltage: 1000V DC or 750V rms AC
- By A, mA or A range:
Frequency response: 0 ~ 40kHz
Input current range: ≥1/4 of the rms AC for the range
(higher input voltage at higher frequency)
- Max. input current:
mA jack （ A ranges ） : 4mA,
mA jack （ m A ranges ） : 400mA,
10A jack: 10A
- Overload protection:
A 、 m A ranges: resettable fuses F1 500mA/250V
10A range: F2 10A/250V fuse (quick acting).
NOTE:
The range by DUTY of the Hz range is larger than that of the
voltage range or current range.
3.2.9 Relative Humidity o n RH and humidity display
（
Range Resolution
20 - 95% 0.1%
- Operating temperature: 0 ℃
- Sampling Period: ~20s.
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SPECIFICATION NTS
）
Accuracy
5.0%RH
to 40 ℃
DIGITAL MULTIMETER
3.2.10 Temperature
3.2.10.1 Temperature （ o n sensor, thermoresistor NTC and
temperature display
）
Range Resolution
℃ 0.1 ℃
0.1 32
℉ ℉
- Sampling Period: ~20s.
3.2.10.2 Temperature o n sensor, thermocouple and main
（
display ）
Range Resolution
-20 ℃ to 0 ℃
1 ℃ 0 ℃ to 400 ℃
℃
400 ℃ to 1000 ℃
-4 ℉ to 32 ℉
1 ℉ 32 ℉ to 752 ℉
℉
752 ℉ to 1832 ℉
- Overload protection: resettable fuses F1 500mA/250V.
3.2.11 Sound Level （ d B ）
Range Resolution
40-100dB 0.1 dB
- Typical instrument frequency range: 100 ~ 8000Hz
SPECIFICATION NTS
Accuracy
0 ℃ to 40 ℃ 2 ℃
to 104 4
℉ ℉ ℉
Accuracy
5.0% of reading or 3 ℃
1.0% of reading or 2 ℃
2.0% of reading
5.0% of reading or 6 ℉
1.0% of reading or 4 ℉
2.0% of reading
Accuracy
3.5%dB at 94dB, 1kHz sine
wave
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