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2HA Portable Analog Photometer
Printable
Specification Sheet
Benefits:
- Proven design, simplicity, and ease of operation
- Full control over gain and straylight levels.
- Full analog unit with analog panel meter
- Audible and visible alarms with adjustable set point
Two internal reference values, DOP and PAO.
Rugged die-cast aluminum enclosure
100 to 250 volts AC, 50/60 Hz fused power entry module with
spare fuses
Optional 12 ft (4.2 meter) scanning probe complete with analog
display, visual alarm and ergonomic handle
Optional sturdy, heavy duty, lockable case
Description
Portability: The 2HA is the smallest, lightest analog
photometer available in a portable self-contained unit. The
2HA has been designed with the user in mind for simplicity
of operation and virtually maintenance-free use. Its
basic purpose is to detect and measure mass concentration
of aerosol in air
Technology: A stream of clean air from an ULPA filter
is passed through the forward light scattering chamber as
the instrument is balanced electrically with respect to any
incidental straylight or dark current. A base line of response
may be set as a basis of comparison, using the internal reference
circuit, which is set for 100 micrograms of poly-dispersed
particles. Once the base line has been set, any subsequent
reading will be in relation to that base line. The range of
concentration measurable is from 100 to 0.0001 on 5 linear
scales on the standard instrument. The 2HA has two pre-set
reference values (DOP & PAO) for aerosol agents. The operator
can quickly select DOP or PAO as the challenge aerosol.
Features
The 2HA photometer is furnished in a rugged, die cast aluminum
case that is suitable for use in industrial or laboratory
environments.
The unit is equipped with a switching internal power supply
to enable operation on all standard electric current worldwide.
2HAN
The 2HA is also available in a version suitable for nuclear
applications, the 2HAN. This unit has features identical to
the 2HA plus a special sealed sampling chamber and HEPA filter
to minimize contamination of internal components. The unit
is specifically designed to allow safe removal and replacement
of contaminated sampling components.
Scanning Probe
The optional scanning probe has a analog display that is
simultaneously updated with the 2HA display. This feature
enables an operator to pinpoint leaks and accurately determine
% leakage at a location remote from the unit.
A flexible, segmented, tube located between the handle and
sampling nozzle allows the nozzle to be adjusted to any angle
necessary to scan a filter surface efficiently. Three interchangeable
nozzles are provided to meet industry standards and protocols
and permit fast, accurate scanning.
Shipping Case: An optional
heavy-duty, lockable shipping case is also available. This
highly recommended case is lined with a thick poly-foam cushioning
and meets the requirements of all commercial carriers for
shipping or as carry-on luggage. It can accommodate the 2HA
unit, scanning probe with nozzles, 100% sample tubing, operation
manual and power cord.
Specifications
Size: 10.1" W × 14.3" D × 5.8"
H
(25.7 cm W × 36.3 cm D × 14.7 cm H
Weight: 15.5 lbs. plus 2.5 lbs. for scanning probe & accessories
= 18.0 lbs.
Enclosure: Instrument case
is rugged, die cast aluminum and can be easily disassembled
as required for recalibration and service of internal components.
The enclosure has two convenient retractable carrying handles
on the sides. Fold-up legs under the case can tilt the control
panel display upward for easy viewing.
Power: 100 to 250 Volts
AC, 50/60 Hz fused power entry module with spare fuses. Automatically
adjusts to virtually all standard electric current used worldwide.
Please specify power supply cable when ordering unit (UL/CSA/VDE)
Alarm: Audible Alarm in
unit sounds when the adjustable set point is exceeded. LED
on probe lights up when set point is exceeded.
Amplifier: Solid-state linear
amplifier.
Accuracy: 2% full-scale
for the decade in use.
Light Source: Improved,
longer lasting and more stable solid-state scattering chamber
light source. Photometer operates at lower power, generating
less heat and lower straylight values. Life expectancy is
50,000 to 100,000 hours.
Scattering Chamber: Redesigned
smaller, lighter and more efficient for improved performance.
Easier to clean and requires less maintenance.
Vacuum Pump: True (1) cubic
foot per minute (cfm) sample rate (28.3 liters per minute)
using a twin head, carbon vane pump for quiet operation and
dependability. An external exhaust filter can easily be attached
to the outlet of the vacuum pump to entrap any particles from
the pump exhaust.
Output: An DB9 connector
is provided standard on all units for a 0-1 VDC output.
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