HST HD105B Manuale utente

DC Powered

Gas Alarm for

Natural or Bottled (LPG)

Gas

With Relay Output

User’s Guide

MODEL HD105B (With Relay Output)

ATTENTION: Please take a few minutes to thoroughly read

this manual, which should be saved for future reference and

passed on to any subsequent owner.

IMPORTANT! READ ALL IN TRUCTION BEFORE

IN TALLATION AND KEEP THI MANUAL NEAR

THE ALARM FOR FUTURE REFERENCE.

CONTENT OF THI MANUAL

1 – DE CRIPTION

2 – FEATURE

3 -- TECHNICAL PECIFICATION

4 -- IN TALLATION IN TRUCTION

5 -- OPERATION AND TE TING

6 -- GA AFETY GUIDE

7 -- HOME AFETY GUIDE

8 -- ERVICE AND WARRANTY

1. DE CRIPTION

The gas alarm is designed for single station use. mall

and compact, the design and color makes it ideal for

use in the home, small commercial properties, and

recreational vehicles. It is intended to detect leakage of

natural gas (methane gas), town gas, and bottled gas

(propane gas). The unit is designed for DC wire-in

applications. The gas alarm can be mounted high (for

methane gas) or low (for propane (LPG) gas). It is

equipped with a sturdy metal mounting bracket for

quick, easy, and secure installation.

2. FEATURE

Detect all sorts of combustible gases, natural gas

(methane), bottled gas (propane), LPG (Liquefied

petroleum Gas), LNG (Liquefied natural gas), coal

gas, including town gas.

Easy to install, mounting bracket included.

Loud 85dB alarm and LED warning light.

High quality durable sensor.

elf diagnostic function by MCU intelligent

software.

Excellent reliability & High stability.

Ideal for all kitchens.

3. TECHNICAL PECIFICATION

Unit Dimensions: 103mm (D) x 55 mm (H)

Color: Ceiling White

Weight: 155g

Operating Temperature: -10 C to +50 C

Ambient Humidity: ≤95% RH

Alarm Horn: 85dB at 3m (10 feet)

Operating Voltage: DC9-28V

Power Consumption: <1.5W (Standby), <5W (Alarm)

For your convenience,

write down the following information.

If you call Us for Service, these are the first questions you

will be asked.

Gas Alarm Model Number (located on back of alarm):

Gas Alarm Assembly Number (Located on back of alarm):

Date of Purchase:

Where Purchased:

Value of Detection Threshold (Lower Explosive Limit):

Natural Gas: 5000ppm (10% LEL)

LPG: 2000PPM (10% LEL)

Coal Gas: 800PPM (2% LEL)

Method of Alarm: Flashing Red LED with 85dB alarm

Warm Up Time: approximately 60 Seconds

Alarm Output: Relay Output (Normal Open 2A@DC24V)

4. IN TALLATION IN TRUCTION

The Gas Alarm is intended to detect leakage of natural gas,

town gas and bottled gas. It is intended for installation in the

home, small commercial properties, and recreational

vehicles.

Installation shall only be undertaken by technicians

holding a certificate issued by an authorized distributor.

For detecting natural gas (lighter than air), the alarm

should be installed within 30 centimeters below the ceiling

and the maximum distance away from the furnace or gas

appliances is 8 meters.

For detecting LPG (heavier than air), the alarm should be

installed within 30 centimeters above the floor and the

maximum distance away from the furnace or gas

appliances is 4 meters.

The alarm should not be located close to any obstacles

preventing natural air circulation. It should also not be

located in a draft or close to a cooker (cooking smells and

other fumes can have a bad influence on gas detection).

The detector can be connected with ecurity alarm panel

as Figure1. Relay output signal can be changed from

Normal Close(NC) to Normal Open(NO) by Jump JP1 on

the PCB board.

The detector can be connected with conventional alarm

panel as Figure 2 or Figure3.

FIGURE1 Terminal Wiring with ecurity Alarm Panel

FIGURE2 Terminal Wiring with Fire Alarm Panel ( 3 Wires)

FIGURE3 Terminal Wiring with Fire Alarm Panel ( 4 Wires)

5. OPERATION AND TE TING

Check and test the gas alarm after installation. It

should be tested weekly and check after re-occupation

following a holiday.

After turn on the power, the LED is on, and then the

unit would take 30 to 300 seconds to warm up. In

the warm up time, the Yellow LED would flashes

until end of the warm up period.

Check that LED indication LED is on to ensure the

power supply is turn on.

Check that the LED flashes every 8 seconds to

ensure the unit is in operating mode.

Press and hold the test button for up to 1 to 3

seconds, and the alarm should sound and the LED

flash rapidly while buzzer is sounding, after 6

seconds later, the alarm exit the test mode and

return to normal operating mode. To ensure the gas

alarm is working, you should test it weekly.

E O L R e s i s t o r ( 6 . 8 K )

D C 2 4 V +

D C 2 4 V -

C o n v e n t i o n a l F i r e

A l a r m C o n t r o l P a n e l

Z O N E +

R e s i s t o r

( 4 7 0 o h m / 1 w )

Z O N E -

E O L R e s i s t o r ( 6 . 8 K )

Z O N E +

D C 2 4 V - ( 0 V )

C o n v e n t i o n a l F i r e

A l a r m C o n t r o l P a n e l

Z O N E -

R e s i s t o r

( 4 7 0 o h m / 1 w )

R e s i s t o r

( 4 7 0 o h m / 1 w )

e c u r i t y A l a r m P a n e l

D C 1 2 V +

D C 1 2 V -

D C P o w e r u p p l y

i s U n p o a r i z e d w i r e

A l a r m i g n a l

R e l a y O u t p u t - C O M

R e l a y O u t p u t - N C / N O

A l a r m i g n a l

R e l a y O u t p u t - C O M

R e l a y O u t p u t - N C / N O

While detecting the gas leaking, the Red Alarm LED

would turn on and the buzzer sound, and relay contacts

would be activated and output signals.

6. GA AFETY GUIDE

If you hear the gas alarm sound or suspect that there is a

gas leakage. You should open all windows and doors to

allow the gas to disperse.

FIGURE 4 FIGURE 5

Don’t switch on lighting, press door bell, exhausting fan or

any kind of electrical appliance to avoid explosion.

FIGURE 6 FIGURE 7

Check all the gas appliances. Extinguish any naked

flames and turn off the gas control off the gas supply.

Call the Fire department immediately outside your home

or premises/ apartment.

7. HOME AFETY GUIDE

If you are on holiday, turn off appliances switches & the

gas control valve.

Do not place the bed near gas pipes or gas meter.

Do not change the location of gas pipes by yourself.

In order to ensure your home safety, please employ

registered installers for regular safety inspection of all gas

installation & appliances.

Attention:

Keep these things, such as paints, chemicals, alcohol away

to make a false alarm.

8. ervice and Warranty.

Install and adjust according to this guide book.

Check the detector once a week; please keep

contact with the service provider immediately if you

get some problems.

Do not tear down or sling the detector randomly.

Do not use chemicals to clean the detector directly,

or wash with water.

The detector is designed with automatic detection,

if the gas sensor or unit in error, do not

disassemble the unit yourself, but get advice from

professional company or service provider.

The manufacturer guarantees to take the

responsibility for free repair and exchange for one

year from the date of purchase if there is quality

problem, and only charge for capital cost beyond

one year.

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