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SEC-elite Multi line gas proving system

The SEC -elite – measuring a compact 180mm x 255mm x 60mm is a gas proving system capable of pressure proving up to 4 gas lines from a single panel.

With each gas line controlled individually, laboratories with multiple gas lines no longer need several panels installed. This reduces installation and purchase costs and creates a simple interaction for the user, which is aided by hidden until lit switches.

Ventilation interlocking, gas detection and non-proving service control are also standard features.

All features of the system can be enabled during the initial installation, or they can be introduced at a later date, thereby providing a unique level of future-proofing.

The SEC-elite is a programmable gas proving and detection system capable of pressure proving 4 gas lines and monitoring up to 8 detectors. The system will be pre-configured before supply and require fully commissioning by Medem engineers.

Gas proving
Using the patented differential pressure proving method, the SEC-elite can test low pressure gas and natural/LPG gas pipe work. It can also pressure prove a variety of gas delivery lines including oxygen up to 10bar. Over pressure can also be monitored and reported on the LCD display.

Gas detection
The SEC has been designed to accept multiple gas detectors, internal programmable relay options can provide demand controlled ventilation, BMS signals and isolation of gas valves upon detection of the target gases at prescribed levels.

Current range:
• Methane/Natural Gas (CH4)
• Propane (C3H8)
• Carbon Monoxide (CO)
• Carbon Dioxide (CO2)
• Oxygen – enrichment and depletion. (O2)
• Hydrogen (H)

Coming Soon:
• Ammonia (NH3)
• Acetylene (C2H2)
• Nitrogen Dioxide (NO2)
• Chlorine (CL)

Alarm types
Each detector can be set to either a peak alarm or time weighted average (TWA) and be set to either non-latching or latching with a programmable time to latch of between 1 & 59 seconds.

Peak Alarms:
Can be set to any value with the particular gas detectors range (during the setup and commissioning by Medem engineers)

Time Weighted Average (TWA) Alarms
Three different TWA alarms can be set
For e.g. 5000ppm 10 secs, 3000ppm 2mins, 500ppm @10mins.

Service Isolation
Isolation control of electrics, water valves and non proving gas valves can also be achieved.

If you require further information about this product please call us on 0161 233 0600 or email at and we'll be more than happy to help.

Design & Specification Documents

  • CO2 based ventilation control

    CO2 based ventilation control

    A 0 to 10 volt output on the panel can be connected to fan speed controllers in order to control the ventilation rates based on CO2 and temperature levels.
    This can help to save energy by controlling fans speeds so that as the occupancy rises and falls so will the ventilation rate.

  • Electrical Isolation

    Electrical Isolation

    Option to control the electrical supply via a contactor, this allows a single point of isolation for multiple services

  • Engineer Functions

    Engineer Functions

    Our systems include several engineer functions which allow a range of information to be displayed on screen.

    This not only aids in the original setup and commissioning but also enables us to provide a greater level of technical support on the telephone.


  • Fan interlocking

    Fan interlocking

    Fan interlocking is used where you require isolation of the gas supply when the ventilation is not running.

    In commercial kitchens it is a requirement to meet current regulations BS6173, BB100, UP11 (see our standards section for more information).

    Our recommended method of interlocking is “current monitoring” (see our model CM2M-K)


  • Fire Test Isolation Mode

    Fire Test Isolation Mode

    Fire Test isolation; In the event of a fire alarm test being undertaken the system can be set into a fire test isolation mode with three consecutive presses of the display detectors button (indicated) so ensuring the gas remains live during the test procedure.

    Once the test is completed the panel will revert to normal operation. If at any time you wish to cancel the operation of the fire test isolation repeat the three button presses on the panel and the panel will once again be connected to the fire panel.

    Note. In the event of an emergency requiring the isolation of the gas supply whilst the fire test isolation function is active the emergency stop button on the panel (and any others fitted) will still isolate the gas supply.

    Fire Test Mode

  • Over Pressure Alert

    Over Pressure Alert

    New to our systems is an over pressure alert

    Should the gas pressure rise above 70 mbar while gas is being used the panel will isolate the gas supply by closing the gas valve.
    When the panel is first switched on and if at that time the gas pressure is over 70 mbar then the gas valve will remain closed.
    Only a Medem gas pressure proving system measuring pressure on both sides of the valve can operate in the way described.
    70 mbar is above the pressure most appliances and other equipment (in buildings) has been designed to use, higher pressures can occur where a gas regulator fails.

  • Water Isolation

    Water Isolation

    Option to control the water supply via a 230v solenoid valve, this allows a single point of isolation for multiple services.

Individual laboratory control?

Individual laboratory control?

There are three main areas of gas control in education buildings:

Boiler room
Production Kitchen

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IGEM/UP11/Edition 2, Gas installations for educational establishments

IGEM/UP11/Edition 2, Gas installations for educational establishments

The Institute of Gas Engineers and Managers (IGEM) document UP11 Edition 2, Gas installations for educational establishments.

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Building Bulletin 101, ventilation of school buidlings

Building Bulletin 101, ventilation of school buidlings

Building Bulletin 101 is a 2nd tier regulatory document to the Building Regulations part F.It covers ventilation in education buildings

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