Gilian
®
BDX
II
ABATEMENT AIR SAMPLING PUMP
8
Document No. 801863M (Rev A)
1.1
OVERVIEW
IMPORTANT
You must read this manual in its entirety to
ensure proper operation of your unit.
This manual contains basic information for
operating and maintaining the Gilian
BDX
II
Abatement Air Sampler. The BDX
II
is capable of delivering up to 3.0 LPM of
sample air for periods exceeding 8 hours,
with a nominal head restriction of up to
20” of water. Primary application for the
Abatement Air Sampler is asbestos sam-
pling, though sampling for emissions,
dusts, fumes, and mists is also possible.
The BDX
II
is designed for maximum util-
ity, simplicity of operation, long service
life, and extreme ease of maintenance.
Features of the BDX
II
Abatement Air Sam-
pler include:
•
Long life, rechargeable battery pack
•
Battery pack rechargeable while at-
tached to unit, or separately
•
Belt clip for portability and
convenience
•
High impact Lexan plastic case
for durability
•
Light weight construction for comfort
when unit is attached to belt
•
Built-in, easily readable flowmeter
•
Small, long life pump
1.2
GENERAL DESCRIPTION
The BDX
II
Abatement Air Sampler consists
of a pump contained in a Lexan plastic
case, electronic flow control system, a
pneumatic system, and a rechargeable bat-
tery pack. The BDX
II
is shown in Figure
1.1 and Figure 1.2.
The BDX
II
sampler is equipped with a ba-
sic control board, which contains the flow
control circuitry. The board also contains
the On/Off switch, and the flow control
potentiometer.
The pump will normally maintain set flow
within
±
5%, with no more than two (2) re-
adjustments needed over an 8-hour pe-
riod. However, heavy filter media loading
may make more frequent readjustments
necessary.
The internal/external vent control is lo-
cated on the top of the sampling pump.
You may select the venting control as de-
sired, using the screwdriver provided with
the pump. Selecting the open circle posi-
tion will vent the pump’s discharge exter-
nal to the sampler’s case (recommended
for moist or corrosive sampling environ-
ments). Selecting the closed circle will
vent the pump’s discharge internally (rec-
ommended for dust laden environments).
SECTION ONE
INTRODUCTION
