Bacharach 3015-4256 User Manual
22
Instruction 3015-4256
Working with the P-CHK Function
Overview
The P-CHK function (Pressure Check Function) (Page 17) is useful to a service technician for
troubleshooting a flow fault problem. The monitor will trigger a flow fault if the pressure drop from
troubleshooting a flow fault problem. The monitor will trigger a flow fault if the pressure drop from
ambient is less than 0.2 psi during a purge cycle, and 0.5 psi during a measurement cycle.
Keypad Functions
The Left Arrow Keypad button toggles the purge valve open and closed. Note that an asterisk (*)
appears when the purge valve is open (purging).
The Down Arrow Keypad button toggles the pump ON and OFF.
appears when the purge valve is open (purging).
The Down Arrow Keypad button toggles the pump ON and OFF.
Pressing the ENTER button stores the current manifold pressure shown on the left to the ambient
pressure shown on the right (must be done with the pump OFF).
Screen Display
Current Manifold Pressure – Current manifold pressure in psia.
Stored Ambient Pressure – Stored ambient pressure in psia.
Pressure Difference – The difference between the current manifold pressure and the stored ambient
pressure.
Fault Code – Current fault code (Page 19).
Pressure Difference – The difference between the current manifold pressure and the stored ambient
pressure.
Fault Code – Current fault code (Page 19).
Purge Valve Asterisk (∗) – When viewing the pressure-check screen, the purge valve can be opened
and closed by pressing the Left Arrow Keypad button. An asterisk appears on the display when the
purge valve is open.
14.07 * AMB14.05
-0.02dif <1000>
-0.02dif <1000>
Current Manifold Pressure
∗ Stored Ambient Pressure
Pressure Difference
Fault Code