2-W", "3-W" And "Ρ" Faulty Cases - MARTINDALE VR2250 User Instruction Manual

6.5.3. "2-W", "3-W" and " ρ " faulty cases
If the instrument detects
the External Power
supply adapter
connected to the
instrument it will show
the message displayed
along side.
If the Instrument
detects a voltage value
higher than 5V the
instrument will show
the screen displayed
alongside.
The message "Rc
high" indicates that the
instrument cannot flow
the minimum current
necessary for
measurement. Check
that the terminals are
correctly connected
and the Auxiliary earth
rod connected to B4
(black conductor) has
not been inserted in a
pebbly or poor
conductive ground. If
necessary pour some
water around the rod.
EARTH 05.06.01
- - - Ω
Vd= ---V
Test:04
RAVG=0.74Ω
REMOVE POWER
3-W
FUNC CLR
EARTH 05.06.01
- - - Ω
Vd= 230V
Test:04
RAVG=0.74Ω
VOLT IN INPUT
3-W
FUNC CLR
EARTH 05.06.01
Ω
- - -
Vd= 1V
Test:04
RAVG=0.74Ω
Rc HIGH
3-W
FUNC CLR
Page 53 of 131
Disconnect the External
Power Supply Adapter
Warning symbol: Voltage
noise in input.
Message "Rc": Check
Auxiliary Earth rods.
VR2250