MGE UPS Systems SAM Operating And Maintenance Manual page 12

The battery SHOULD be disconnected if the unit is to be stored without external power for more than one
week. Disconnection is via the grey connector only inside the battery compartment. A reset must be carried
out after reconnection. To reset - turn the unit ON and then OFF.
Fast charge only occurs between a battery temperature of 11 C and 50 C to protect the battery.
At the end of its life, the battery must not be disposed of as urban waste. It must be taken to a special
local authority differentiated waste collection centre or to a dealer providing this service
Transport and Storage
Transport: Equipment will be adequately boxed and protected to ensure no damage occurs during normal
transportation of goods providing the ambient conditions are within the following parameters:
Temperature max +40°C min -20°C
Equipment should be stored indoors and should not exceed the temperature and humidity conditions stated
above. The equipment should be stored in its original packaging providing no external damage is evident.
When the unit is held in storage, or used very infrequently, Particular care must be taken when inspecting
flexible components, such as valves, to ensure embrittlement has not occurred. SAM units should be stored in
a cool, dry environment.
Flow Rates
Approximate free airflow at different vacuum settings – at filter
80mm hg 120mm hg
10.7 kPa 16.0 kPa
9 lt/min 12 lt/min
Vacuum Range
Vacuum
Vacuum Indicator accuracy -
Effect of Altitude
Altitude effects all vacuum pumps and it should be noted that there will be a reduction in the maximum
achievable vacuum / negative pressure level equivalent to approximately 3.5% per 300m (approximately
1000ft) rise in altitude.
Quick Test for Unit Functionality
A quick means of testing the functionality of the SAM e.p.s is –
Occlude the patient port.

 Turn on the unit to the first position and read the indicated vacuum on the vertical scale.
 Turn the knob to the next setting and again check the indicated vacuum.
 Repeat through all settings.
If the indicated vacuum is the same as that selected then the unit is functioning correctly.

Over-Vacuum Safety Cutout
If the measured vacuum level rises and remains at least one setting above the 'Set' level on the control knob
for over 10 seconds, then the unit will shut down illuminating the top 2 red battery lights to indicate a vacuum
issue. Turning the unit off and on will reset this condition but if the issue persists, the unit will shut down again
until the problem is rectified.
Cleaning and Replacement of Parts
Disconnect the unit from the supply mains before any cleaning is commenced.
When cleaning or replacing any part of the SAM e.p.s unit appropriate protective clothing and gloves MUST
be worn to avoid contamination. Disposal of contaminated parts must be according to local protocols. Do not
immerse the unit in water or other liquids – this may cause damage and create an electrical hazard. Do not
pump cleaning solution through the unit. Isolate the mains supply before cleaning the unit.
Manual 156 - Issue 08
SAM e.p.s – UK
Operation and Maintenance Manual
200mm hg
26.7 kPa
16 lt/min
80 mm Hg. [10.7 kPa] – <550 mm Hg. [73.3 kPa] min.
550+ mm Hg. [73.3+ kPa] Maximum
±5% of full scale.
Humidity max +80% min +30%
350mm hg 500mm hg
46.7 kPa 66.7 kPa
24 lt/min 31 lt/min
550+mm hg
73.3 kPa
32 lt/min
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