System-sensor EPS40EXP and EPS120EXP Manual de usuario descargar pdf

COVER

4.9"

9.5"

LOCKING

SCREW

HEX ADJUST

SCREW

1/4" HEX HEAD

COVER

TAMPER

SET SCREW

(WRENCH

PROVIDED)

ADJUSTMENT

WHEEL

COVER

(WRENCH

PROVIDED)

MAIN ADJUSTMENT

WHEEL (TURN

COUNTERCLOSKWISE

TO INCREASE

PRESSURE)

1/2" NPT

D770-26-00 1 I56-1428-001R

EPS40EXP and EPS120EXP Explosion Proof

Supervisory Pressure Switches

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

Important

Please Read Carefully and Save

This instruction manual contains important information

about the installation and operation of supervisory pres-

sure switches. Purchasers who install switches for use by

others must leave this manual or a copy of it with the user.

Read all instructions carefully before installation, following

only those instructions that apply to the model you are

installing.

Before installing any alarm device, be thoroughly familiar

with:

NFPA 72: National Fire Alarm Code

NFPA 13: Installation of Sprinkler Systems

NFPA 25: Inspection, Testing, and Maintenance of Water-

based Fire Protection Systems

Other applicable NFPA standards, local codes, and the

requirements of the authority having jurisdiction.

Failure to follow these directions may result in failure of the

device to report an alarm condition. System Sensor is not

responsible for devices that have been improperly installed,

tested, or maintained.

Specifications

Contact Ratings: 10 A, 1/2 HP @ 125/250 VAC

2.5A @ 6/12/24 VDC

Operating Temperature Range: –40°F to +160°F

EPS40EXP EPS120EXP

Maximum Service Pressure (in PSI): 250 250

Adjustment Range: 10-100 10-200

Approximate Differential: 3 PSI @ 10 PSI 3 PSI @ 10 PSI

8 PSI @ 100 PSI 9 PSI @ 200 PSI

Enclosure Rating: NEMA Type 4 — Indoor/Outdoor use

Hazardous Atmospheres

Classification: Class I, Groups B, C, D, Div. 1

Class II, Groups E, F, G, Div. 1

Class III, Div. 1

Operation

As pressure changes, a diaphragm actuates 2 snap action

switches. The pressure switch actuation is determined by

adjustment settings.

Figure 1. Pressure switch basic dimensions:

1 2 3 4

Indice de contenidos

Pagina 1 - Supervisory Pressure Switches

COVER4.9"9.5"LOCKINGSCREWHEX ADJUSTSCREW1/4" HEX HEADCOVERTAMPERSET SCREW(WRENCHPROVIDED)ADJUSTMENTWHEELCOVER(WRENCHPROVIDED)MAIN ADJUS

Pagina 2 - D770-26-00 2 I56-1428-001R

BREAK WIRE AS SHOWN FORSUPERVISION OF CONNECTION.DO NOT ALLOW STRIPPED WIRELEADS TO EXTEND BEYONDSWITCH HOUSING. DO NOTLOOP WIRES.A78-2346-02D770-26-0

Pagina 3 - (Low Switch) (Hi Switch)

Adjustments To Factory SettingsTable 2.Dual-switch Model — EPS40EXP and EPS120EXP1. Install pressure switch as stated in “INSTALLATION”portion of inst

Pagina 4

D770-26-00 4 I56-1428-001R© System Sensor 2002Three-Year Limited WarrantySystem Sensor warrants its enclosed pressure switch to be free fromdefects in

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System-sensor EPS40EXP and EPS120EXP Manual de usuario

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