Archer VR2K 설치 운영 및 유지보수 - 페이지 4

{카테고리_이름} Archer VR2K에 대한 설치 운영 및 유지보수을 온라인으로 검색하거나 PDF를 다운로드하세요. Archer VR2K 6 페이지. High volume vacuum regulator

Operating the Model VR2K:

1) Before placing the VR2K vacuum regulator into operation, it is important to carefully test

each lead gasket seal. A small squeeze bottle (provided with every Archer Instruments

vacuum regulator) should be partially filled with ammonia. Squeezing the bottle allows the

ammonia fumes to be used to test for chlorine leaks. A leak is detected by a visible light

gray / white gas cloud when the two fumes interact. To test for leaks, open each container

valve ¼ turn and then close immediately. This pressurizes the lead gasket seal but ensures

the container of chlorine is isolated during leak testing. Use ammonia fumes around the

cylinder valve and each lead gasket to check for any signs of leaking gas. If a leak is found,

this must be addressed before placing the unit into operation.

2) After confirming no leaks exist, open the chlorine cylinder valve 1 turn. This is fully open

and there is no need to open the valve further. Archer Instruments recommends leaving the

wrench on the valve stem whenever a container valve is open.

3) The VR2K operates using vacuum supplied by the ejector. Once the gas supply has been

prepared for operation and pressurized gas is supplied to the VR2K, gas feed will begin when

the ejector is put into operation.

NOTE: If the gas supply to the VR2K is exhausted, the guide pin will retract into the

front body. This indicates that gas is no longer flowing and that increased internal

vacuum has caused the diaphragm to fully open the inlet valve. When a high internal

vacuum level exists the diaphragm assembly will seal against the inside of the back body

until either the vacuum is relieved or the gas supply is restored.

Maintaining the VR2K:

Recommended Maintenance Frequency: Archer Instruments recommends yearly routine

maintenance of the VR2K vacuum regulator.

-Refer to the following parts diagram when performing maintenance on the VR2K.

NOTE: Prior to removal, the gas manifold must be properly evacuated to be sure all chlorine

has been removed and no pressure remains in the system.

DISASSEMBLY:

1) Remove the four BTA-139 cap screws and pull the drip leg & inlet assembly straight

out of the back of the vacuum regulator. Take care to pull it straight away, so as to

avoid damaging the VRA-644 Filter Holder.

2) Remove the four BTA-125 body screws and two BTA-131 back plate screws, then

carefully separate the VR2K front and back bodies.

3) The diaphragm assembly can then be removed by pulling it straight out of the front

body. Take care to not lose the vent spring, which is located between the diaphragm

assembly and the front body.

Archer Instruments, LLC