Welker AD905BP, Installation, Operation And Maintenance Manual

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2.5 Operating the Unit
DO NOT install or operate the unit without first installing the external sand relief and sample outlet flexline. The external sand
relief is a safety relief valve required for safe installation and operation of the unit. Failure to install the external sand relief and
sample outlet flexline prior to installation and operation could damage the unit, injure the operator, or allow product to free
flow unchecked.
1. Turn ON the hydraulic or pneumatic supply.
2. As necessary, adjust the hydraulic or pneumatic supply to 100 psig.
3. Set the timer or controller to actuate the solenoid at the desired sampling actuation frequency based on the sampling
equations provided ( Figure 14 ).
Figure 14: Sampling Frequency Equations
Never fill the container above 80% of its capacity. Allow at least 20% room for product expansion should the container be
exposed to increased temperatures.
Note the 0.8 in Equation 1 represents the 80% volume limit for liquid sampling.
4. Ensure that emergency shutoff valve E is open ( Figure 1 or Figure 3 ).
5. As necessary, turn on electrical power and activate the hydraulic or pneumatic supply to actuate the solenoid at the set
sampling frequency.
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