Baumatic B23 Spezifikationen PDF herunterladen (Seite 14)

Dekker Vacuum Technologies, Inc. – DuraVane/12 14

Inlet Filter (standard on systems): An inlet filter is installed as standard on the DuraVane rotary

vane vacuum pump systems. For pumps only, an inlet filter is optional but recommended and

needs to be installed in the inlet piping.

Vacuum Relief Valve (optional): This valve may be installed on the pump suction manifold or on

the receiver. The vacuum relief valve is used to maintain a certain vacuum level.

Vacuum Switch (standard on multiplex systems): is used to automatically switch the vacuum

pump ON and OFF, based on demand.

Switches are factory preset for your application and it is NOT RECOMMENDED to adjust

the vacuum switch. Each switch is labeled as LEAD or LAG and is marked with the

corresponding PUMP ON and PUMP OFF points.

If the vacuum switch must be adjusted, please follow these instructions:

1. To increase the point at which the vacuum pump turns

ON, turn the RANGE ADJUSTMENT SCREW I counter-

clockwise. See the range scale on switch for

approximation. Use vacuum gauge to observe actual

PUMP ON and PUMP OFF point.

2. To increase the differential, which is the difference

between the PUMP ON and PUMP OFF point, turn the

DIFFERENTIAL ADJUSTMENT SCREW (D) counter-

clockwise. To obtain the correct PUMP OFF point

observe the physical opening of the contact switch as

compared to the vacuum gauge reading. The vacuum

pump will not stop running, because all systems are

equipped with “10 minute mimum run” timers.

3. Remember you will need to vary the vacuum level in the

receiver or manifold to see a change in the vacuum level,

and to adjust the switches.

Microprocessing Controller (optional): system may be equipped with this very reliable and

compact Controller module for controlling and monitoring basic machinery functions. The following

instructions should help guide the end user to perform simple changes to the Controllers’ pre-

programmed settings. The specific preset areas that may be modified are outlined below.

Set the Internal Clock:

Upon powering the system control panel, the installation technician must ensure that the internal

clock in the Controller has been set to the current military time setting. The Controller is equipped

with an internal capacitor that will hold the time for approximately 80 hrs. If your system has not

been installed within the allotted time frame, the alternation of the automatic mode will not occur

and only one of the pumps will function until the time parameter has been updated. Refer to the

following instructions for access to and changing of the parameters.

Sequence of Operation Automatic Mode:

The switch on the front of the system control panel must be placed in the automatic mode before

the Controller program will initiate. Upon starting the system, all pumps should come on line and

run for a minimum of 10 minutes each. As the demand for the vacuum pumps change, the

individual units will turn off and on as required, each time running for a minimum of 10 minutes

after initial start. If all the individual pumps are not placed in automatic mode simultaneously,

there may be a pump that does not ramp up to speed with the lead pump. This does not mean

that there is a problem with your vacuum system. The reason for this can be the switch settings

for lead and lag pumps. When the system is started and individual units are placed in automatic

mode at different times, the demand for lag pump may not be present due to the time lapse

between placing the various pumps in automatic mode.

After 24 hours of operation (1 calendar day), the lead pump will become the lag pump and the

remaining pumps will shift one spot forward, keeping the same on and off switch settings as

before. The alternation of the vacuum pumps will allow equal usage of the equipment and will

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