Manual

2.1.2. Display
NOTE : Some features detailed within this user
guide are model dependent.
Not all features appear on all models
2.1.3. Display symbols
Symbol Description Symbol Description
Test function locked on (also used to
indicate a change is saved in setup)
G
Warning triangle – instruction to refer to
this user guide
z
Test lead null active
f
Fuse blown
U
L
= 50V
Touch voltage limit (and Earth test voltage)
set to 50 V (change setup)
Battery indicator
Buzzer enabled NiMH
Battery type set to rechargeable NiMH -
Change in setup section 10
AUTO
RCD test in AUTO mode >100 V
Indicates that the ground noise voltage
exceeds the instrument measurement
capability (test is inhibited)
Type AC RCD selected Rp (Rs)
Potential stake (P stake)
resistance exceeds range for accurate
measurement
Type A RCD selected Rc (RH)
Current stake (C Stake)
resistance exceeds range for accurate
measurement
S
Type S RCD (Type AC)
V
Ground noise voltage exceeds range for
accurate measurement of resistance
S
Type S RCD (Type A)
V
MVC1010 error
Type B RCD selected
I
MCC1010 error
Fast or Full RAMP test selected Bluetooth
®
enabled
TEST
Instrument is running a test
T
Instrument is too hot, allow to cool
Earth loop noise detected. N<->L Live and neutral connections reversed
Zref Reference loop measurement R1+R2
Loop measurement with Zref value
automatically deducted
ZMAX Loop maximum measurement
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MFT1800 series
12
Introduction