AZI Customer Service 800-528-7411 or 602-470-1414
Page 22 of 56
•
Remove the two screws toward the
front of the instrument and open the
lid.
•
Locate the DIP Switch SW2 at the
top of the main circuit board.
o
Non-SMV units: SW2 is the
red DIP switch illustrated at top
right.
o
SMV units: SW2 is the black
DIP switch illustrated below
right.
•
Set SW2 position #1 and #6 as
follows.
60Hz 50Hz
Position #1
OFF
OFF
Position #6
OFF
ON
Display Nanograms or Milligrams Per Cubic Meter
The instrument is factory set to display mg/m
3
(milligrams per cubic meter) of mercury (.XXX).
For some applications, the instrument’s display can be converted to nanograms.
•
Ensure the instrument is turned OFF.
•
Remove the two screws near the front of the instrument and open the lid.
•
Locate DIP Switch SW2 at the top of the main circuit board. (See pictures above).
•
Place Position #2 to OFF for nanograms display.
•
Return Position #2 to ON for the normal milligram display.
Changing the Fuse
If the instrument display reads .P.P.P when the instrument is connected to AC power or when
REGEN is pressed, or if the battery will not charge, the fuse may need to be replaced. The AC
line power could also be less than 100 VAC (220 VAC). Check the fuse with an ohmmeter and
the AC line power with a voltage meter.
•
Locate the power receptacle on the rear of
the instrument.
•
Insert a small screwdriver in the slot, located
in the power receptacle, and gently slide the
fuse compartment out.
•
If the fuse in the open-sided clip is open,
remove and discard it.
Non-SMV Instruments
SMV Instruments
DIP SWITCH SW2
