Sierra Monitor Corporation 5398-21 User Manual

Model 5398-21

Gas Sample Draw Panels

Gas Sample Draw Panel (5398-21) provides an easy to
use method of drawing an air sample from a remote, or
hostile area to a more convenient location for analysis.
The Sample Draw Panel can use gas sensor modules
for Combustible or T oxic gases, either the Sentry style
modules or the Analog (4-20 mA output) modules. It

can use gas sensor modules for Combustible or Toxic
gases.

The integral sample pump to draw the sample at a high
flow rate to reduce sample time. The sample is delivered
to the sensor up-stream from the pump to avoid negative
pressure conditions. A bypass line exhausts excess
sample volume to avoid high flow rates across the sensor.
Each panel is a self-contained system with the pump,
flow indication, valves to control sample draw and
calibration gas delivery, and the gas detection sensor
and transmitter (priced separately) all housed in an
enclosure. The flow systems design will deliver the
sample to the sensor with minimal pressure affecting
the sensor as the excess flow and pressure are bled off
via the bypass flowmeter .

Specifications:

Power: 110 VAC @ 1 amp
Pump: Oil Free, Diaphragm T ype
Maximum Sample Draw: 600 feet with 1/4” tubing
Flow Rates: 0-500 cc/min. Adjust able sample to sensor
Maximum Operating Pressure: 50 PSIG
Controls: 3-way valve for Run and Calibration
Outputs: Dry contact pump flow failure switch (contacts closed when

flow is detected, open for alarm)
Filter: Coalescing filter for moisture knock-out for each sample line
Tubing Connections: 1/4" Tube Fittings for connection of:

- sample lines - sample exhausts

- calibration gas - bypass exhaust
Enclosure type: NEMA 4X Fiberglass with window
Dimensions (H x W x D): 16.9 x 15.0 x 8.3 inches (42.9 x 38.1 x 21.1 cm)
Weight: 17.6 lbs (8.0 Kg) - without gas sensor module
Sensor/Transmitter: Mounting provisions for all standard Sierra Monitor Corp.

Sentry and Analog gas sensor modules

Ordering Information:

Model 5398-21 Single Channel Gas Sample Panel

The Sample Draw Panels are intended for installation in
an area, which is accessible, by the user for periodic
routine inspection and calibration. The panel requires
120 VAC input and provides local visual as well as
remote indication of pump and flow status.

Model 5398-21

Model 5398-21 Dimensions

Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 USA [phone] [phone] Fax: [phone]

Visit our Web site: www.sierramonitor.com E-Mail: [e-mail]

© 2009 by Sierra Monitor Corporation