آمپرمتر ولتمتر DC روپنلی 100 آمپر 0v-100v همراه با شنت
توضیحات محصول
آمپرمتر ولتمتر DC روپنلی 100 آمپر 0v-100v همراه با شنت
DSN-VC288
یک ماژول ولت-آمپر متر دیحیتالی با دقت 1% می باشد که
بواسطه ی این ماژول قادر خواهید بود در سطر اول ولتاژ اندازه گیری شده تا سقف 100
ولت و در سطر دوم جریان اندازه گیری تا حد 100 آمپر با رزولوشن 0.01A را نمایش دهید.
نشانگر های این ماژول ، ولتمتر به رنگ قرمز و آمپرمتر به رنگ آبی میباشد.
Technical
Parameters
Voltage
measurement range | 0.0V-100V |
Current test
range | 0-999mA,
0-10A, 0-100A |
Power supply
range | DC4-30.0V |
Voltage error | ±0.1% |
Current error | ±1% |
External
shunt specification | 75 milliohms |
Working
current | < 20mA |
Refresh rate | About 300mS
once |
Display
method | Double
three-digit 0.28" LED digital tube |
Display color | Red + red,
red + Red. Optional |
Lead length | 15cm |
Dimensions | 48 x 29 x 22
mm, length X width X thickness; |
Mounting
holes | 46 x 27 mm |
net weight | g |
Gross weight | g |
Operating
temperature | -10°C~65°C |
Based
on the various questions that customers often have, the following summary
references are made:
Note: A meter
with a range of 50A or 100A must be connected to the
shunt to measure the current regardless of whether the measured current is
less than 10A ! Otherwise it will burn out the meter.
The
voltage is normal and the current is 0.00 or 0.0.
Make
sure that the thick black wire is connected to the negative pole of the battery
and the thick red wire is connected to the negative pole of the load. (Note
that the discharge is not the same as the charging wiring, see the concept
of load and power afterwards .) (Meter using imported chips,
through a very rigorous testing and calibration to ensure the
factory . No quality issues before shipment. Meet current
display 0 cases of 99.99% is wired wrong, please be patient
carefully check the wiring)
Current
display is not allowed
If
it is directly powered or the independent power supply is co-located with the
equipment power supply, as long as the thin black line is disconnected, it can
be accurate.
Connected
to the power supply does not display
Any
AC power that has been rectified must be filtered by an electrolytic
capacitor of 1000uF or more to supply power to the meter.
Judging
whether the header is good or bad (the following are the two cases of the
normal header)
Without
the shunt, connect the thin red line and the thin black line to the power
supply, the meter current of the range
of 50A shows 50.0~59.9 , and the meter with the
range of 100Ashows 100~109 ;
Connect
the shunt, connect the thin red line and the thin black line to the power
supply, the meter current of the range
of 50A shows 0.00 , and the meter with the range
of 100A shows0.0 ;
Other
considerations
The
current can only be measured in the negative pole of the power supply and the
negative pole of the load.
Voltage
range: The power supply voltage range of the 5 lines
is4~28V , that is, the voltage of the thin red line cannot
exceed 28V .
Concept
about load and power
When
discharging: The battery, switching power supply, and transformer are the power
supplies. The resistors, lamps, motors, and devices that use electricity are
loads.
When
charging: charger, generator, solar energy is the power source, rechargeable
battery, battery is the load.
