VICI DBS MISTRAL EVOLUTION 10 - Tank Size Calculation; Where to Get the Tank; Alarms & Pre-Alarms; Pre-Alarms

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MISTRAL EVOLUTION
USER MANUAL
www.v icidbs.com
Version 1.03.0000
9.1.1 Tank Size Calculation
Given:
• The nitrogen consumption is 30 NL/min
• The LCMS needs 7 barg (101.5 psig) pressure
...the max usable pressure of the Mistral Evolution is 9 barg (130.5 psig). This mean that the max pressure
difference is our example is 2 barg (29 psig).
You’ll need to store at least the requested Nitrogen for the 5 minute stops of the compressors (30 NL/min x 5
min) = 150 L atm.
As we can have 2 barg (29 psig) pressure difference, the requested volume will be 150 L / 2 = 75 L
This is the minimal size tank requirements. In order to preserve the compressor’s lifespan, we recommend to
over-size the tank by a factor of 3.
In this example, the right size of the tank will be around 225 L
9.2. Where to Get the Tank
As the size of the tank will be large for application and in addition legislation is different from one country to
another, DBS doesn’t sell this item and recommends the customer purchase it locally.
Note: The tank must be compatible with pressures up to 10 bar and certied (CE marked for Europe).
Using a non-certied external tank may be dangerous and may cause human disease.
Tubing and ttings must also support the requested pressure.
10. ALARMS & PRE-ALARMS
10.1. Pre-Alarms
Precursors of the alarms. Do not stop the device.
ITEM DESCRIPTION
Temperature The temperature inside the cabinet is over the maximum limit. Check if the room
temperature respects the specications and if there is enough space in the rear side of
the unit for the ventilation. Otherwise, remove the right panel of the machine and the
cabinet panel and check if all the fans are working. If it is all right, call the service. Press
the reset button.
P. Min Internal
Tank
The pressure in the internal reservoir is less than the lower limit. Call the service. Press
the reset button.
WT CMP The compressors must be changed. Call the service. Press the reset button.
SRV 4000 The lter must be changed. See the maintenance section of this manual relatively to
the 4000 h service kit. Call the service to order the new kit. Press the reset button.