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Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13

HOCHIKI INTRINSICALLY SAFE COMPATIBLE SOUNDER CONTROL

MODULE INSTALLATION INSTRUCTIONS

Products covered: CHQ-ISM, CHQ-ISM/DIN and CHQ-ISM(HFP)

Function

The CHQ-ISM is a Sounder Control module which interfaces between the Hochiki Analogue system via a

CHQ-DSC or conventional sounder O/P’s and the intrinsically safe sounder/beacon units via an intrinsically

Safe barrier. The module provides line monitoring for Open or short circuits on the wiring connected to both

the Safe and Hazardous areas. The unit is externally powered with 24V and provides a Fault monitoring I/P

which can be used to indicate something like a mains failure back to the CIE on SNDR CCT1.

NOTE: This sounder interface module should always be used with an I.S. Barrier. The CHQ-ISM is not itself

intrinsically safe.

Specification

Parameter

Quantity

Units

Notes

Min

Typ.

Max

PSU Supply voltage

I.S. BARRIER1 voltage

I.S. BARRIER2 voltage

Quiescent Current

Excluding current drawn by SNDR

EOL’S and IS BARRIER Device loads.

SNDR CCT1 Current powered

with 24V

Does not include current possibly

drawn by SNDR EOL1 (e.g. add 24 mA

if using a 1k EOL resistor)

SNDR CCT2 Current powered

with 24V

Does not include current possibly

drawn by SNDR EOL2 (e.g. add 24 mA

if using a 1k EOL resistor)

I.S. BARRIER 1 Load current

Actual value dependant on IS sounder

used.

I.S. BARRIER 2 Load current

Actual value dependant on IS sounder

used.

Maximum Cable Resistance on

I.S. barrier terminals

This is the combined total Wiring

resistance between the IS Barrier

Terminals and the IS device.

EOL CCT1

User Determined

Hochiki CHQ-DSC module uses a 1K

EOL CCT2

User Determined

Hochiki CHQ-DSC module uses a 1K

Monitored input EOL

10 K resistor

10 K ± 5% 0.4 W

Input Thresholds

9.5

10.5

K

Normal condition (10 K)

100



On/Activated (>100 K



On/Activated (<50 

Table 1

1 2 3 4

Inhaltsverzeichnis

Seite 1

Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13 HOCHIKI INTRINSICALLY SAFE COMPATIBLE SOUNDER CONTROL MODULE INSTALLATION INSTRUCTIONS Products

Seite 2 - SAFE AREA

Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13 Connection Details The CHQ-ISM should be connected as shown in Fig 1 or Fig 2 below, the I.S. de

Seite 3

Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13 NOTE: For both Fig 1 and 2 a S/C fault on the Barrier terminals will be reported back by the CHQ

Seite 4 - Status LEDs

Hochiki Europe (UK) Limited 2-3-0-1469/ISS1/SEPT13 Installation – “Smart-Fix” with Back Box For those installations requiring glanded cables, a mod

Verwandte Modelle: CHQ-ISM

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Hochiki CHQ-ISM/DIN Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Audio-Zubehör Hochiki CHQ-ISM/DIN herunter. Hochiki CHQ-ISM/DIN User Manual Benutzerhandbuch

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Verwandte Modelle: CHQ-ISM

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