Bender ISOMETER isoCHA425 Manual page 15

5. Operation of the device
The menu structure is illustrated schematically on the following pages.
After pressing the "MENU" button for > 1.5 s, the first menu item "AL" appears. Use
und (Enter) buttons for navigation and settings.
Up and down button:
- to navigate up or down in the menu settings
- increasing or decreasing values
Pressing the MENU/Enter button for more than 1.5 s:
- Starts menu mode
or
- or when the device already is in menu mode:
MENU
Exit menu item (Esc). Any recent
changes will not be stored.
Pressing the MENU/Enter button for less than 1.5 s:
- Confirms menu selection
or
- confirms modified value
The areas of the display that can be configured flash!
15
Operation of the device
5.1 Displays and buttons
Device front/display
ON
AL1
AL2
ON AL1 AL2
T
R
T R MENU
MENU
1 2 3
1
C L1L2
{
>
+
µ F
10
4 2
kM %
<
s
test onoff MAdr
3
9 8 7 6 5
4
5
6
7
8
9
10
Function
green - on
Assignment according to
yellow - alarm
table on page 17
yellow - alarm
Up button
Test button ( press > 1.5 s)
By pressing and holding the test button, the display
elements are indicated.
Down button
Reset button (press > 1.5 s)
ENTER
MENU button (press > 1.5 s)
U : Nominal system voltage U
n
R : Insulation resistance R
F
C : System leakage capacitance C
e
Monitored conductor
= : Voltage type DC
: Error-free measured value update
~ : Voltage type AC
Measured values and units
Password protection is activated.
In the menu mode, the operating mode of the respec-
tive alarm relay is displayed.
Communication interface
With measured value: isoData operation
The fault memory is activated.
Condition symbols
Identification for response values and response value
violation
isoCHA425_D00352_01_M_XXEN/10.2019