Reading The Led Status - Extech Instruments S3500THS User Manual

Do not use a charger not approved by Extech for use with the
S3500ThS or S3500T series. Use of an unapproved charger could
!
damage the battery pack or the printer and will void the warranty.
The battery terminals are well recessed inside the printer. Do not
allow them to contact conductive material since this may create a
!
short circuit which could cause injury or start a fire.
When using the wall mounted charger ensure the socket outlet is close
!
to the printer and easily accessible during the battery recharging
process. Either switch the socket off (if supplied with a socket switch)
or pull out the charger from the socket or disconnect the plug from the
printer in the event of any problems.

1.3 Reading the LED Status:

This table explains the LED indicator status. Refer to Figure 1 for the locations
described for ON/OFF and FEED pushbutton switches and AC adaptor socket
LED Indicator
Green
Yellow
Green and Red
State
ON
ON
ON
Table 1 - Reading the LED Status
Status
Green --- Printer is on and
ready to receive data.
Pressing the <On/Off> switch will
turn the printer on and illuminate
the Green LED. After approximately
20 seconds, if no instructions are
sent, the printer will automatically
turn off to conserve battery life.
In IrDA mode, the printer will stay
on all the time. Pressing the
<On/Off> switch again will turn the
printer off.
Yellow --- The battery charger is
charging the battery at a fast rate.
If the battery is below 5V, the
battery is being "trickle" charged
until the battery voltage reaches
5V, and then the fast charge rate is
started. The LED will turn off when
the battery is fully charged.
Green --- Indicates that MCR is
ready to accept data.
Red --- Indicates a fault
condition or a printer error. The
printer is not ready to accept
data.
Note: Refer to the troubleshooting
guide to determine error or fault
condition.
.
Page 7