System-sensor EPS10EXP Manual de usuario descargar pdf

COVER

4.9"

9.5"

LOCKING

SCREW

HEX ADJUST

SCREW

1/4" HEX HEAD

COVER

TA MP ER

SET SCREW

(WRENCH

PROVIDED)

ADJUSTMENT

WHEEL

COVER

(WRENCH

PROVIDED)

MAIN ADJUSTMENT

WHEEL (TURN

COUNTERCLOSKWISE

TO INCREASE

PRESSURE)

1/2" NPT

D770-25-00 1 I56-1427-001R

EPS10EXP Explosion Proof

Alarm Pressure Switch

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 alarm pressure

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: Installation, Maintenance, and Use of

Protective Signaling Systems

NFPA 13: Installation of Sprinkler 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.

Operation

As pressure changes, a diaphragm actuates 2 snap action

switches. The pressure switch actuation is determined by

adjustment settings.

Specifications

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

2.5 A @ 6/12/24 VDC

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

Maximum Service Pressure: 250 PSI

Maximum Adjustment Range: 4 – 20 PSI

Enclosure Rating: NEMA Type 4 — Indoor or/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

Approximate Differential: 3 PSI throughout range

Installation

Back out cover tamper set screw and remove cover (Fig. 1).

2. Mounting the Switch

The device is designed to be mounted in the upright or

horizontal position; side mounting is also acceptable.

Figure 1. Pressure switch basic dimensions:

WARNING

To prevent ignition of hazardous atmospheres, disconnect

circuits before removing cover. Keep cover closed while cir-

cuits are live. Conduit runs must have sealing fittings con-

nected within 18” of the enclosure.

1 2 3 4

Indice de contenidos

Pagina 1 - Alarm Pressure Switch

COVER4.9"9.5"LOCKINGSCREWHEX ADJUSTSCREW1/4" HEX HEADCOVERTA MP ERSET SCREW(WRENCHPROVIDED)ADJUSTMENTWHEELCOVER(WRENCHPROVIDED)MAIN ADJ

Pagina 2 - D770-25-00 2 I56-1427-001R

D770-25-00 2 I56-1427-001RLocate it where vibration, shock, and mechanical loadingare minimal. Refer to piping diagram (Figure 2 on page 2).a. Mount t

Pagina 3 - D770-25-00 3 I56-1427-001R

D770-25-00 3 I56-1427-001RThe EPS10EXP device is pre-adjusted at the factory to alarmat 4–8 PSI on rising pressure (see Table 2). Pressure switchsetti

Pagina 4

D770-25-00 4 I56-1427-001R© System Sensor 2002Three-Year Limited WarrantySystem Sensor warrants its enclosed pressure switch to be free fromdefects in

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System-sensor EPS10EXP Manual de usuario

Busca en linea o descarga Manual de usuario para Equipo System-sensor EPS10EXP. System Sensor EPS10EXP User Manual [en] Manual de usuario

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