Dimensions . . .
(FS-925/FS-930)
(FS-926) 1-9/32"
Electrical Connection
(1/2" NPT Conduit)
Maintenance . . .
Accumulation of foreign debris should periodically be removed
from these switches. Occasional "wipe-down" cleaning when
excessive contamination is present is all that is normally
required. To clean: Remove unit from system and disassemble
as shown below. Clean all parts, reassemble and reinstall unit.
Note: 50 micron filtration is recommended.
Piston
Inlet
Fitting
Housing
Spring
O-Ring
DWYER INSTRUMENTS,INC.
P.O.BOX 373 MICHIGAN CITY, INDIANA 46361, U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyer-inst.com
Lit-By Fax: 888/891-4963
Important Points!
Product must be maintained and installed in strict accordance with the
National Electrical Code and Dwyer product catalog and instruction
bulletin. Failure to observe this warning could result in serious injuries
or damages.
For hazardous area applications involving such things as (but not
limited to) ignitable mixtures, combustible dust and flammable materials,
use an appropriate explosion-proof enclosure or intrinsically safe
interface device.
The pressure and temperature limitations shown on the individual
catalog pages and drawings for the specified flow switches must not
be exceeded. These pressures and temperatures take into
consideration possible system surge pressures/temperatures and
their frequencies.
Selection of materials for compatibility with the media is critical to the
life and operation of Dwyer products. Take care in the proper selection
of materials of construction, particularly wetted materials.
Life expectancy of switch contacts varies with applications. Contact
Dwyer if life cycle testing is required.
Ambient temperature changes do affect switch set points, since the
specific gravity of a liquid can vary with temperature.
Dwyer Products have been designed to resist shock and vibration;
however, shock and vibration should be minimized.
Filter liquid media containing particulate and/or debris to ensure the
proper operation of our products.
Electrical entries and mounting points in an enclosed tank may
require liquid/vapor sealing.
Dwyer Products must not be field-repaired.
Physical damage sustained by the product may render it
unserviceable.
MAINTENANCE/REPAIR...
Regular maintenance of the total system is recommended to assure sustained optimum performance. These devices are not
field repairable and should be returned to the factory if recalibration or other service is required. After first obtaining a Returned
Goods Authorization (RGA) number, send the unit freight prepaid to the following. Please include a clear description of the
problem plus any application information available.
Dwyer Instruments, Inc.
Attn: Repair Department
102 Highway 212
Michigan City, IN 46360
(2 Seiten)
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