RIDGID SeekTech SR-20 Operator's Manual page 12

SeekTech SR-20
Light Sensor – In Automatic mode, the light sensor
controls when the backlight goes on or off depending on
ambient light. Placing a thumb over the light sensor will
force the backlight on.
Operation Time
Using alkaline cells, typical operation time is from about 12
to 24 hours depending on sound volume and how often
the backlight is on. Other factors that affect the operation
time will include chemistry of the battery (many of the new
high performance batteries, such as the "Duracell
ULTRA" last 10%-20% longer than conventional alka-
line cells under high demand applications). Operation at
lower temperatures will also reduce battery life.
The SR-20 display can also show random symbols
when the battery power is too low. This is remedied by
simply putting fresh batteries into the unit.
To preserve battery life, the SR-20 will automatically shut
down after 1 hour of no key presses. Simply power the
unit on to resume use.
Low Battery Warning
When the battery gets low, a battery icon
odically appear in the map area on the screen. This in-
dicates that the batteries need to be changed and that
the unit will soon shut down. A tone will sound at ten-
minute intervals.
Figure 10 – Low-Battery Warning
Just before complete shut down there will be a nonin-
terruptible power down sequence. An extended buzz will
sound when the SR-20 is about to go into shutdown se-
quence.
NOTE! Voltage on rechargeable batteries may some-
times drop so quickly that the unit will just shut
down. The unit will power down and restart. Just
replace the batteries and power the unit back on.
10
Starting Up
After pressing the Power Key
RIDGID ®
will appear on the left of the screen.
®
Figure 11 – Start-up Screen
Make a note of the software version in the box on page 1.
If technical support from Ridge is needed it will be helpful
to have it available.
Set Up
will peri-
Once the SR-20 is up and running the next step is to set
up the frequencies needed that match the transmitter or
line to be located. Each frequency is selected for use by
choosing it from a list in the Main Menu. If the box on the
Main Menu for that frequency is checked, the frequency
is in Checked-Active status.
Checked-Active frequencies are already selected for
use and appear in sequence by pressing the Frequency
Key . (For example, in Figure 12, the line trace fre-
quency of 33 kHz is available by pressing the Frequency
Key.)
Figure 12 – Frequency Key
Ridge Tool Company
logo displays, and the software version number
on the keypad, the