Model 5398-21
Gas Sample Draw Panel
The Single Channel, Gas Sample Draw Panel (539821) 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 draws the sample at a high flow rate to reduce
sample time lag. The sample is delivered to the sensor
up-stream from the pump to avoid negative pressure
conditions. 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. 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 indoor 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
inaccessible for maintenance.

Fast Loop & Bypass Sampling Method
Improved response by reducing sample delay time

IT Module Features
Includes all features provided in IT modules for signal
output and interface requirements.
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042
Visit our Web site: www.sierramonitor.com
E-Mail: sales@sierramonitor.com
© 2012 by Sierra Monitor Corporation
Model 5398-21
Gas Sample Draw Panel
Specifications:
Power:
Pump:
Maximum Sample Draw:
Flow Rates:
Maximum Operating Pressure:
Temperature:
Controls:
Outputs:
Enclosure type:
Dimensions (H x W x D):
Weight:
Sensor/Transmitter:
Warranty:
110 VAC @ 1 amp
Oil Free, Diaphragm Type
600 feet (183m) total length with 1/4” tubing
0-500 cc/min. Adjustable sample to sensor
20 PSIG
32o – 110o F (0o – 43o C)
3-way valve for Run and Calibration
Dry contact pump flow failure switch
(contacts closed when flow is detected, open for alarm)
Coalescing filter for moisture knock-out
1/4" Tube Fittings for connection of:
- sample line
- sample exhaust
- calibration gas
- bypass exhaust
NEMA 4X Fiberglass with window
16.9 x 15.0 x 8.3 inches (42.9 x 38.1 x 21.1 cm)
17.6 lbs (8.0 Kg) - without gas sensor module
Mounting provisions for all standard Sierra Monitor sensors
1 Year, excludes diaphragm assy.
Ordering Information:
Model 5398-21
Single Channel Gas Sample Panel
Filter:
Tubing Connections:
Model 5398-21 Dimensions
4/13
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042
Visit our Web site: www.sierramonitor.com
E-Mail: sales@sierramonitor.com
© 2012 by Sierra Monitor Corporation