Description:

The HR390 is a small milliohm meter that can be used to measure resistance meters. It is easy to use.
Applications:
● measure the resistance value;

Technical Data Sheet:
1 Measuring resistance range 0.001 ~ 120 Ω
2 Resistance measurement resolution 1 mΩ
3 measuring capacitance range 10pf ~ 20000uf
4 capacitance measurement 1pf
5 working voltage 7~12 VDC
6 operating current <100 mA
7 Size 57*45*20 mm Length X Width X Height

Interface description and related operations
P1 wiring definition:
No. Symbol Meaning
1 VDD module power supply positive (7V~12V)
2 GND power supply of the module

P3 wiring definition:
No. Symbol Meaning
1. R+ connected to the measuring resistor
2. R-connected measuring resistor
3. CAP is connected to the measuring capacitor positive
4. GND is connected to the negative of the measuring capacitor


Key Description
FUN: Switch the measured capacitance value or resistance.
Mes/Cal: Calibration (resistance short circuit measurement line calibration, capacitance open measurement line calibration)

Packing: 1pc * HR390 Milliohm meter