Delmhorst Instrument J-LITE - Manual (Page 6)

CHECK CALIBRATION
Press the calibration check key
@
. Meter is in calibration
when the “12” lights up.
If you check the calibration and an LED other than the “12”
lights up, it is likely an indication of a low battery. If this
occurs, change the battery immediately. Continued use with a
low battery may cause the meter to go out of calibration. If
you have a fresh battery and the instrument still does not
indicate a proper calibration, return it to DELMHORST for
service.
See Service for Your Meter section.
When the battery is removed and then reconnected, all the
LEDs will flash for a few seconds, then the meter will turn
itself off.
NOTE:
A hard Reset is required if, after changing the battery, the display is
frozen. This is sometimes caused by the interruption of contact
between the battery and the battery lead wire. Resolve this as fol-
lows:
Disconnect the battery. Press and hold the Read key for 15 seconds.
Release the Read key. Press and hold the Check key for 15 seconds.
Release the Check key. Connect a fresh battery to the lead wire in a
single action, making sure to align the poles properly and without
interrupting contact. If the display remains frozen, repeat this proce-
dure. If this procedure does not solve the problem, refer to the
Service for Your Meter section.
TAKING A READING IN WOOD
h Remove the protective cover to expose the contact pins.
Check that the contact pins’ retainers
$
are firmly hand
tightened.
h Align the contact pins $ parallel to the grain, pushing
them to full penetration into the wood, if possible.
h Press the read key ! and read the %MC on the LED
display.
Note:
The integral contact pins (2497/A-100) are best for hardwoods up to
6/4 or softwoods up to 2”. Push the non-insulated pins into the wood
to their full penetration, if possible. The external electrode, 26-ES
is fitted with insulated contact pins and a slide hammer. It is recom-
mended for applications when a moisture gradient may be present,
or on hardwoods of any thickness (up to 6 in). The insulated pins
read only at the non-insulated tip and can be driven to the desired
depth to obtain shell and core (gradient) information.
3
24522J-Lite SinglePgs.:Layout 1 8/16/11 7:58 AM Page 3