Specifications

1. CE/CSA/SGS/ISO
2. Sample is available
3. CO2 fluctuating quantity 0.3% max
4. According to customers' drawings

  

Principle

     The system is made up of thermocouple, ignitor, the injector(burner) assembly and the nozzle assembly and so  on. It is designed to shut off the main burner of the gas appliance, when the oxygen content of the room in which the appliance installed is reduced below a predetermined level, so as to shut off gas ovens to protect user’s health and safty.

 

Normal Operation:

20.9 Percent Oxygen -

The flame touches the tip of the Thermocouple, generating the necessary millivoltage needed to hold the gas valve open.

 

Oxygen Level Drops:

19 Percent Oxygen -

The flame begins to lift off the precision pilot burner. The thermocouple begins to cool.

 

Safety Shutdown:

18 Percent Oxygen - 

The unstable pilot flame goes out, causing the thermocouple to cool.

The thermocouple stops generating the electricity needed to hold the spring loaded solenoid valve open. 

The valve shuts the ventfree gas heater down and cannot be started until the oxygen level in the room returns to normal.

 

Application

ODS specified for gas oven,gas heater,outdoor heaters etc.

Our Advantage   

 

No.1	Consistency of mass-production
	Shut-off point of CO2 within 0.3%(eg:0.8%-1.1%)
No.2	CSA Certificate
	We are one of the few companies with CSA in china
No.3	5 patents
	The unique patented design

 

 

 

Technical parameters
Applicable gas species	LPG,NG,Propane & Butane
CO2	0.8%-1.5%
O2	≥19.0%
CO	≤50ppm
Inner resistance	5-50±3 mΩ
No-load potential	≥20mV(650°C)
Connector	Nut (M8*1,M9*1) or others
Axial tension 50N, sustain 1 min, no loose, no cut
The length according the client’s request

 

ODS 03 ODS 05       ODS 08