Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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FOR MODELS: JGZ AND JGU SECTION 4 LUBRICATION Manual Purge Gun (Pump) Divider Block Inlet Divider Block w/ “S” Valve Electronic Lubricator Fluid-Flow Monitor/No-Flow Timer Switch - Proflo PF1 The Proflo PF1 is a battery powered programmable electronic microprocessor-based switch used to sense slowflow or no-flow conditions in the compressor cylinder force feed lubrication system to facilitate alarm and/or shutdown. It also has many features that can help ease the operation of the force feed lube system by allowing accurate monitoring of the cycle time and system performance. This information may be used to optimize force feed lube and reduce operating costs. The Proflo PF1 fluid-flow monitor is shown in the Figure. If a DNFT (electronic-lubricator digital no-flow timer switch) is supplied in lieu of a Proflo, see “Electronic-Lubricator Digital No-Flow Timer Switch (DNFT)” on page 4-47. 24T 12S 12T Base Outlets Open - Oil Flowing Freely Testing “T” Divider Valve Divider Block All Outlets Open Testing “T” Divider Valve Testing “S” Divider Valve FIGURE 4-5: PRESSURE TESTING DIVIDER BLOCKS The Proflo PF1 monitor works through a magnetic pin that cycles back and forth as the divider valve piston moves. The magnetic pin housing is normally screwed into the divider valve block, the monitor box housing slides on to the pin housing and is held in place by two (2) hexagonsocket set screws. The front face of the monitor box housing has a liquid crystal display (LCD) window to provide 7/09 PAGE 4 - 37 24T 12S 12T Plugged to Test One Side of a “T” Valve - All Other Outlets Open Magnetic Pin Housing - Attaches to Divider Block Liquid Crystal Display (LCD) Window Ariel Part Number Infrared Wireless Connection IrDA Port for Downloading Data to a Palm Pilot Type Hand Held Computer Set Button 24T 12S 12T (2) 1/4” x 20 Set Screws Both Sides Plugged to Test a “S” Valve - All Other Outlets Open REFER TO MANUAL FOR PROPER OPERATION & BATTERY TYPE. WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS. BATTERIES MUST ONLY BE CHANGED IN AN AREA KNOWN TO BE NON-HAZARDOUS. ® Mode Button FIGURE 4-6: ELECTRONIC LUBRICATOR FLUID-FLOW MONITOR & NO-FLOW TIMER SWITCH - PROFLO PF1
FOR MODELS: JGZ AND JGU SECTION 4 LUBRICATION a visual indication of the following: 1. Total operating time of the force feed lube system in hours. 2. "Average", "Last" and "Current" cycle time of the divider block in seconds. 3. Total divider block cycles. 4. Remaining battery power life in percent. 5. Alarm set time for no-flow indication (programmable 30 to 240 seconds). 6. Alarm wiring mode: Normally Open or Normally Closed. Proflo PF1 Monitor wiring identification and instructions for electronic indication: NOTE: IF THE PULSE OUTPUT (BLUE WIRES) AND ALARM CIRCUIT (RED WIRES) ARE TO BE USED AT THE SAME TIME, PLEASE REFER TO “Proflo PF1 - Using Pulse Output and Alarm Circuit at Same Time:” on page 4-45. Blue Wires: Pulse output. The two (2) blue wires can be used to send a transistor pulse output for each divider block cycle to a PLC (Programmable Logic Controller), Scada System, Digital Counter or Digital Control Panel. Maximum switching load is 36 Vdc @ 500mA. Insulate blue wire ends from each other and conduit or compressor ground when not in use. Pulse duration is 500 milliseconds. Switch output operation: Pulse represents 1 divider block cycle or period. White Wires: Switch input. Remote mounting Proflo PF1 display. The two (2) white wires can be connected to a dry contact proximity switch. This allows remote mounting of the monitor box housing in a convenient location on the compressor frame or in the control panel. Ariel recommends distance between proximity switch and the panel mounted Proflo should not exceed 600 feet (183 m). Please refer to Proflo PF1 operating notes for more information. Insulate white wire ends, from each other and from ground, when not in use. For panel mount kit, see “Proflo PF1 Accessories Available:” on page 4-47. Red Wires: Alarm switch output. The two (2) red wires are for a no-flow alarm contact. This can be used for alarm or shutdown no-flow indication at a control panel. When the divider block cycles this contact closes when in Normally Closed (NC) operation and opens when in Normally Open (NO) operation. The contact returns to static state when the preset timer times out. Switching Capacity: 36 Vdc @ 500 mA max. Insulate red wire ends from each other and from ground when not in use. This output operation is programmable as NO or NC. Ariel recommends using a NC system for fail-safe operation. Red wires are not polarity sensitive. See “Proflo Normally Open and Normally Closed Definition:” on page 4-44. Green Wire: The green wire must be securely grounded to an "earth ground" on the compressor frame or in the control panel. Do not ground to the electrical conduit. Improper grounding can result in unreliable operation of the monitor. PAGE 4 - 38 7/09
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Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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