Airmetrics MiniVol, Operation Manual

Page: 17 / 56

Section 4: Particulate Matter Sampling
Airmetrics 27
Figure 4.4. PM
2.5
Preseparator and Filter Holder Assembly
7. Place the entire clean filter assembly into a second plastic bag, or other case,
for transporting to the site. It is best to keep the filter assembly in a vertical
position until installed on the sa mpler.
Preparing the Battery Pack
B
ATTERY
C
HARGING
After each sampling run, the used battery pack should be charged for a minimum
of 18 hours or o vernight. The b attery need not be completely disc harged before
recharging.
Airmetrics MiniVol Users Guide
28 Airmetrics
The rechargeable battery features a
green
charging light and comes with a
universal transformer that connects to wall sockets by a standard computer-type
power cord. Previous to December, 1997, the batteries featured a red charging
light and were su pplied with an 1 8-VAC Tamura T ransformer.
If you own both types of batteries and transformers, please note the following:
!
The 18-V AC Ta mura Tran sformer
C A N N O T
c h a rg e th e n ew g r ee n L E D-
equippe d batteries. T he Tam ura Tran sforme r will burn o ut.
!
The new Universal Tra nsformer
can
charge b oth types of batteries. T he old
batteries, however, will take slightly longer to charge on the Universal
Transforme r (18 hours vs. abo ut 14 hours).
DO NO T store the battery while attached to the sam pler as this will cause
irreparable damage to the battery. The indicator lights that remain on when
the battery is con nected to the sa mpler w ill discharge the b attery past its 10.3
volt safety cut-off po int.
See “Charging Batteries” in the Getting Started section for instructions in the
proper procedure to follow in recharging the batteries.
C
HANGING
/I
NSTALLING
B
ATTERY
P
ACK ON
S
AMPLER
1. Place the charge d battery pack b eside the sam pler.
2. Unclasp the tw o side latches at the ba se of the samp ler.
3. Lift the sampler off the used battery pack and place the sampler on the charged
battery pack.
Note
: The pin on the sampler closest to a side clip inserts into the odd colored
receptacle on the b attery pack (see F igure 2.1).
4. Reclamp the two side latches.
O
THER
B
ATTERY
C
HECKS