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12 The Utilities Menu
A number of options can be set via the Utilities menu. Pressing
[Utilities]
will cause the main
display to show
{–Util–}
with the currently selected menu item flashing in the secondary
display. Use the Navigator keys to select the required item and select it with
[OK]
.
When selected the item name will appear in the main display with the current status flashing in
the secondary display. Use the Navigator keys to change the status or value, and confirm it
with
[OK]
.
Press the
[Utilities]
key again to exit the Utilities menu.
12.1
Beep Sound {
BEE
p}
An internal sounder is used to provide warnings of illegal actions or confirmation of completed
actions; it also provides a short beep whenever a key is pressed when the condition is set to on
{On}
. The default condition is set to off
{Off}.
Note that even when the internal sounder is set to
off, the continuity buzzer will still sound in continuity mode.
12.2
Measurement Speed {
SPEE
d}
The normal measurement speed is 4 readings/sec for most single measurement parameters.
For voltage, current and resistance measurements, the speed can be increased to 20
readings/sec at the expense of resolution which reduces to 12,000 counts (Speed = fast)
{FASt}
. The default condition is slow
{SLO}
.
Note that Continuity measurements are always made at the higher speed. The measurement
speed is indicated by a flashing asterisk symbol on the left of the display – see
section 12.10
.
12.3
Measurement Filter {
FiLt}
In order to minimise jitter for sensitive measurements of DC volts and Resistance, an analogue
filter is incorporated that provides high rejection of 50Hz or 60Hz noise. Where the user
requires quicker response to signal changes, the filter can be switched off
{OFF}
. This is
particularly relevant when the measurement speed is set to Fast.
The default condition is on
{On}
.
12.4
External Trigger {
E
-tr}
The external trigger input can be used to hold the display reading
{HOLD}
or to initiate a
logging entry
{LOg}
,
or to have no function
{OFF}
.
The default value is Off
{OFF}
.
12.5
Battery Condition {b
A
tt}
The approximate battery charge level can be shown.
When fully charged the display will show:
{E - - - - F}
.
As the battery discharges it will change to
{E - - - F}
(75%),
{E - - F}
(50%),
{E - F}
(25%),
and at approximately 10% to
{COnnECt AC}
(scrolling). This is also the point at which the
battery symbol appears on the main display.
When the instrument is connected to AC power, the display will show
{CHArgE}
(charge).
12.6
dB Reference Impedance {db-r
EF}
The reference impedance for AC voltage measurements can be changed to any of the
following: 50, 75, 93, 110, 124, 125, 135, 150, 250, 300, 500, 600, 900, 1000, 1200, and 8000
:
The default value is 600
:
{600W}
