Bacharach Gas Pup Instruction

Bacharach Gas Pup Instruction Manual pdf 26 page image

Gas Pup20 Instruction 55-9002OperationWater/Filter TrapThe optional water/filter trap accessory is recommended to be used inconjunction with the 30" barholing probe; thus preventing water frombeing drawn into the instrument when the probe is inserted into a holefilled with water. The water trap can also be used with the standard 10"probe when an operator is probing for a gas leak in an area that containspools of water.Install the water/fiter trap directly on the instrument’s gas inlet fitting;then connect the gas probe and hose assembly to the water trap as shownin Figure 17.When using the water trap, observe that its bowl will begin to fill aswater is drawn into the probe. It is good practice not to allow the waterlevel to rise above the filter retainer. Empty the bowl by first turningOFF the Pup or removing the water/filter trap from the instrument, andthen pushing up on the drain valve located at the bottom of the bowl.The water trap also contains a particulate filter that should be changedwhen it becomes contaminated with dirt. Note that a dirty filter will slowdown the flow of gas into the instrument and thus slow down theinstrument’s response time. Replace this filter by first unscrewing thebowl, and then unscrewing the filter retainer and discarding the old filter.Install a new filter and reattach the bowl.Figure 17. Water/Filter TrapAttach Water/Filter Trapto the Instrument’sGas Inlet FittingBOWL(It is good practice not toallow the water level to riseabove the Filter Retainer,otherwise gas flow maybecome restricted.)PARTICULATE FILTER(P/N 07-1644)FILTER RETAINERDRAIN(Do not drain bowl with Pupturned ON, otherwise water maybe drawn up into the instrument.)Gas Probe & Hose Connector