Misconnection Alarm - CEN-TECH ITEM 98674 Operation Manual

DIGITAL MULTIMETER
3.2.12 Luminance （ L ux ）
Range Resolution
Lux (4000) 1 Lux
at color temp. 2856K calibrated to
×10Lux 10Lux
(40000)
- Repeatability: ±2%.
3.2.13 Diode Test
Range Resolution
1mV
- Forward DC current ~1mA
- Reversed DC voltage ~1.5V
- Overload Protection: 250V DC or rms AC
3.2.14 Continuity Test
Range
Built-in buzzer will sound if resistance is lower
than 40 .
- Open circuit voltage ~0.5V
- Overload Protection: 250V DC or rms AC
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SPECIFICATION NTS
Accuracy
（ 5 .0% of reading + 10 digits ）
standard incandescent lamp
Function
displaying approximate
forward voltage of diode
Function
DIGITAL MULTIMETER
4. OPERATING INSTRUCTION

4.1 MISCONNECTION ALARM

The input jacks of the meter are equipped with sound and
light alarms against misconnection of test leads.
4.1.1 At V 、 、 H z 、 D uty 、 、
1 ） T he red lights at the "IN" and "COM" jacks will be off
after the test leads are plugged in.
2 ） T he buzzer will sound upon misconnection of the test
leads in the "mA" or "10A" jacks to warn the user. At
the same time, the lights at the "IN" and "COM" jacks
will flash to remind the user to plug in the test leads
there.
4.1.2 At µA 、 m A, TEMP ranges
1 ） T he red lights at the "mA" and "COM" jacks will be off
after the test leads are plugged in.
2 ） T he buzzer will sound upon misconnection of the test
leads in the "IN" or "10A" jacks to warn the user. At
the same time, the red lights at the "mA" and "COM"
jacks will flash to remind the user to plug in the test
leads there.
4.1.3 At 10A range ：
1) The red lights at the "10A" and "COM" jacks will be off
after the test leads are plugged in.
2) The buzzer will sound upon misconnection of the test
leads in the "IN" or "mA" jacks to warn the user.
OPERATING INSTRUCTION
ranges:
：
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