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PSU-SERIES - Outdoor Rated, Continuous Duty,
Mobile Cart Air Sampling Systems
[PSU-SERIES]
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This extremely popular, outdoor rated continuous
duty air sampling system is intended for secure outdoor
ambient particulate and/or gaseous air sampling.
The pump, control valve, and control panel are all hard
mounted in a heavy gauge TIG welded aluminum, fully
lockable, fan cooled, weather proof enclosure. The control
panel houses the power switch, fuse protection,
resettable electronic timer and either an analog or digital
flow display. The telescoping sampling inlets are adjustable
in height to allow for breathing zone air sampling.
HI-Q's MCV-260 mechanical flow control valve
maintains a constant flow ±5% of the operator pre-set
flow rate (up to the maximum capacity of the pump). The
PSU is available with either a ¼ or ¾ HP oilless rotary
vane vacuum pump.
• Weather Proof Aluminum Enclosure
• Completely Securable for Maintaining
Chain of Custody
• Telescoping Inlet for Breathing-Zone
Air Sampling
• Instantaneous N.I.S.T. Traceable Flow
Reading
• Electronic, Resettable, Elapsed Timer
• Automatic Flow Control Valve
• Continuous Duty, Oilless Rotary Vane
Vacuum Pump
• Flow Ranges from 0 to 7.0 CFM
• "High Efficiency" Omni directional
particulate inlet head
Optional Calibrated Flow Displays:
Digital Flow Display - Panel mounted NIST
traceable digital flow meter, custom calibrated per
ANSI/NCSL Z540-1-1994 using customer supplied filter
media. The digital panel meter has a 15 point linearization
table that relates differential pressure to flow,
and is accurately compensated for filter loading. The
digital panel meter displays instantaneous flow, minimum/
maximum flow, and total volume of air sampled.
The minimum, maximum and total sample volume are
user resetable. The digital panel meter has optional
plug in cards that allow DeviceNet, RS-232, RS-485
communications as well as analog signal output and
relay outputs for alarms. To order complete with PSU
see ordering information. To order separately as a retrofit
kit for existing PSU's use PN: PSU-DIG.
Analog Flow Display - Panel mounted NIST
traceable rotameter, custom calibrated per ANSI/NCSL
Z540-1-1994 using customer supplied filter media.
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