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00238 

SEC-L 

v4

 

Installation Instructions 

 
The SEC-L is a gas pressure proving system with options for; water and electric isolation, gas detection and 
ventilation interlocking.  
 
The system will perform a down stream integrity check ensuring gas tightness before use, close the gas 
solenoid valve in the event of a high-level gas alarm, ventilation failure, low incoming gas pressure or if the 
emergency stop/fire alarm is activated. 
 
It is designed for use primarily in laboratories. 
 

 

 

 

Before commencing installation please familiarise yourself to the equipment by reading the comprehensive 
installation instructions. If in doubt then please call 0161 233 0600. Out of hours please call 07894 684080 or 
07843 355163. 
 

 

It is a statutory requirement that this safety system is installed and commissioned 

to the satisfaction of the manufacturer. 

 

 

A commissioning certificate must be issued to the end user along with instructions for the operation of the 
equipment. 
 
As the Manufacturer Medem UK should commission this safety system whereupon a commissioning report 
will be forwarded to the installing agent who should provide a copy to the end user.  
At the point of our commissioning an individual serial number will be attached to the system along with a 
24hr help line number. Photos and all relevant information for the installation will then be stored on the 
Medem site database to be accessed in the event of a call on the 24 hour help line. The warranty period for 
the panel and sender unit will then be extended to Ten years.

 

 

• 

Gas Pressure proving. 

• 

Water Isolation. (optional) 

• 

Electrical Isolation. (optional) 

• 

Gas Detection .(up to 16 detectors with a power pack) 

• 

Fan interlock. (optional) 

• 

5 year warranty  - 10 years when commissioned 

SEC-L features 

Содержание SEC-L v4

Страница 1: ...s installed and commissioned to the satisfaction of the manufacturer A commissioning certificate must be issued to the end user along with instructions for the operation of the equipment As the Manufa...

Страница 2: ...e Blind buttons A and B for engineer functions LED indications Power On green A blind button for displaying gas pressures on the LCD screen Gas Electric Water red when active to warn of live service F...

Страница 3: ...for full details 16 OPTA Over pressure check will isolate gas supply if pressure exceeds 70 mbar 17 Fill prove time for gas pressure proving see page 5 18 Timer adjustment for fan commissioning allow...

Страница 4: ...ip switches One condition selectable from each relay Max switching 48 volts 1 amp 15 BMS Relay PCB Press button A To display the gas pressures and view the set pressure proving set times Press button...

Страница 5: ...comm To enable the commissioning of the gas portion of the system before the ventilation interlock is completed you may temporarily disable the interlocking by pressing button 22 This will bypass the...

Страница 6: ...hat is being monitored for See the gas detectors own instructions for more guidance The maximum cable length between a detector and the control panel should not exceed 100 metres whilst we would alway...

Страница 7: ...ween 1m and 3m from the potential source Care should be taken so they are not located close to the edge of a canopy or in direct flow of the supply or extract ventilation For additional information or...

Страница 8: ...ed through the Medem CM2M K2 channel current Monitor fans Fan speed controls Fan live Supply Fire Alarm Requires a volt free NC contact Where using 3 phase fans interlock on a single phase See page ni...

Страница 9: ...hin the panel IMPORTANT If wired this way a warning notice must be attached to the panel to indicate that there are two separate mains feeds Contactor coil Live feed through switched relay To bench so...

Страница 10: ...the correct way round Note there is no flow through the pressure sender unit it is purely reading the pressures either side of the valve Correct Pressur e Solenoid Never mount the valve such that the...

Страница 11: ...d coil of the valve should never be mounted below the horizontal Pressure sender unit should never be mounted upside down to protect from water ingress Approx 400mm length INLET PORT OUTLET PORT Note...

Страница 12: ...red in series with the EM stop buttons To EM Stop connections in the panel Indicator bar shows when pressed Normal EM Stop Activated Multiple Stop Buttons Single Stop Buttons Resetting indicator bar T...

Страница 13: ...UK will exchange faulty valves for return to the manufacturer 5 Where a Medem UK engineer or another company appointed by Medem UK commission and installed system then that system will carry a ten ye...

Страница 14: ...D display that all the detectors have been recognised by the panel A recognised detector will appear as CO Carbon Monoxide CM combustible CH Carbon Dioxide OX Oxygen depletion and TP Temperature Count...

Страница 15: ...st If at any point the fans stop running opening the S1 or E1 contact the system will isolate the gas and report fans not running Check that the fans are not only switched on but actually running and...

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