Sierra Monitor 5398-21 User Manual

Model 5398-21

Gas Sample Draw Panel

The Single Channel, 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 IT Series gas sensor modules for
Combustible or Toxic gases.

This gas sampling system uses a fast coop and
bypass type sampling method. An integral sample
pump dr aw s t he sa mp le a t a hi gh flow rate to reduce
sample time lag. The sample is delivered to the sensor
up-stream from the pump to avoid negative p ress ure
conditions. The flow systems design will deliver the
sample to the sensor with minimal pr essure affectin g
the sensor as the excess flow and pressure are bled
off via the bypass flowmeter. Each panel is a self­contained 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 the
enclosure.

The Sample Draw Panels are intended for installation
in an in doo r 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.

Features Benefits

 Unitary Solution Gas sensor module and sampling in same enclosure.
 Remote Sampling Provides monitoring of indoor areas that may be

 Fast Loop & Bypass Sampling Method Improved response by reducing sample delay time
 IT Module Features Includes all features provided in IT modules for signal

inaccessible for maintenance.

output and interface requirements.

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]

© 2012 by Sierra Monitor Corporation

Model 5398-21

Gas Sample Draw Panel

Specifications:

Pow er : 1 10 V AC @ 1 amp
Pump: Oil Free, Diaphragm Type
Maximum Sample Draw: 600 feet (183m) total length with 1/4” tubing
Flow Rates: 0-500 cc/min. Adjust able sample to senso r
Maximum Operating Pressure: 20 PSIG
Temperature: 32
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
Tubing Connections: 1/4" Tube Fittings for connection of:

- sample line - sample exhaust

- 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:
Sensor/ Transmit ter: Mounting provisions for all standard Sierra Monitor sensors
Warranty: 1 Year, excludes diaphragm assy.

Ordering Information:

Model 5398-21 Single Channel Gas Sample Panel

o

– 110o F (0o – 43o C)

17.6 lbs (8.0 Kg) - without gas sensor module

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]

© 2012 by Sierra Monitor Corporation