Greystone Energy Systems GFS Series Catalog Page

DIFFERENTIAL PRESSURE SWITCH

GFS Series

Precision pressure
control/sensing

FEATURES:

•

The housing contains a diaphragm, a snap-acting SPDT

switch, range adjustment knob with increments

•

The sample connections located on the side accept

6.35mm (0.25") OD tubing

•

An enclosure cover guards against accidental contact
with the live switch terminal screws and the set point
adjusting knob with indication.

•

Optional pressure ranges available.

•

Includes 2 pick up tubes and 2 M (6.56’) of PVC tubing

Peace of mind

through reliable

pressure monitoring

GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

SPECIFICATIONS:

Adjustment Range.........................

Adjustment

Knob Markings ........ Scaled in Pascal and “ WC

See Product Ordering Information

Switch Tolerance.............................±15%

Maximum Operating Pressure...1.45 PSI (10 kPa) for all pressure ranges

Medium..............................................Air, non-combustible and

non-aggressive gases

Temperature Range.......................Medium and ambient temperature

-20˚C to 60˚C (-4˚F to 140˚F)
Storage temperature

-40˚C to 85˚C (-40˚F to 185˚F)

Diaphragm Material ......................Silicone, tempered at 200˚C,

free of gas emissions

Pressure Connections...................

2 plastic pipe connections pieces
(P1 and P2), external diameter 6.0 mm
P1 for connection to higher pressure
P2 for connection to lower pressure

PRODUCT ORDERING INFORMATION

MODEL Product Description
GFS Adjustable Airow Switch with Setpoint Indication

CODE Range
80

83
86

0.08” to 1.20” w.c. (20 to 300 Pa), Switch dierential 0.04“ w.c. (10 Pa)

0.2” to 2.00” w.c. (50 to 500 Pa), Switch dierential 0.08“ w.c. (20 Pa)

2.00” to 10.00 “ w.c. (500 to 2500 Pa), Switch dierential 0.60” w.c. (150 Pa)

Electrical Rating .............................Max. 1.0A (0.4A) / 250 VAC, 50/60 Hz

Max. 0.1 A / 24 VDC

Electrical Connections................. AMP at plug 6.3 mm x 0.8 mm

Push-on screw terminals
Cable conduit with cable relief

Mechanical Working Life ............

Housing Materials .........................Switch body made of PA 6.6

Cover made of PC

Protection Category.....................IP54 with cover (NEMA 13)

Weight...............................................With cover 160 g

Included Accessories.................... 2 meters of PVC hose and 2

plastic tubes
Set of 3 push-on screw terminals

Approvals......................................... ETL Approved, No. 3192203

Approval Standards...................... UL508 & CSA 22.2

Over 10 million switching operations

CODE Electrical Connections
N-IK

M-IK

1/2” NPT Connection
M20 Connection

GFS 80 N-IK

Greystone Energy Systems Inc. reserves the right to make design modications without prior notice.

Dimensions in millimeters and (inches)

65 mm (2.56”)

50 mm (1.97”)

ø

6 mm (0.24”)

7.5 mm (0.30”)

ENERGY SYSTEMS INC

21.8 mm
(0.86”)

59 mm
(2.32”)

57.5 mm (2.26”)

18 mm (0.71”)

8.5 mm (0.33”)
ø 4.5 mm (0.18”)

Greystone Energy Systems, Inc.

Alarm or Control

To prove excessive airow or pressure

To prove insucient airow or pressure

CM

C US

3192203

Greystone Energy Systems Inc. is one of North America’s

largest ISO registered manufacturers of HVAC/R sensors and

transmitters for Building Automation Management Systems.

We have conscientiously established a worldwide
reputation as an industry leader by maintaining leading­edge design technology, prompt technical support, and a

commitment to on-time deliveries. We take pride in our

Quality Management System which is ISO 9001 certied,

assuring our customers of consistent product reliability.

GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

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