Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Section 2 - Instrumentation For Models: JGH:E:K:T Proflo Jr. No-Flow Switch CAUTION: See arc welding caution at the beginning of this chapter. Proflo Jr. Installation CAUTION: Explosion hazard - no user serviceable parts. Do not disconnect wiring while circuit is live. Complete all field wiring in accordance with local codes pertaining to potentially explosive atmospheres. Do not open battery compartment in areas known to contain explosive gases. 1. Loosen the two Allen head set screws on top of Proflo Jr. case and remove magnet housing. Do not remove magnet, spring, and spacer from magnet housing. 2. Remove piston end plug from desired divider valve. The Proflo Jr. installs on either side of any divider valve, but requires the correct magnet housing for each divider valve manufacturer (Trabon, Dropsa, etc.). NOTE: Do not install the Proflo Jr. on any divider valves with cycle indicator pins. 3. Verify O-ring is in place on magnet housing. Thread magnet housing into end of divider valve. Torque magnet housing to 15 foot-pounds max. 1. Magnet Housing 2. O-Ring 3. Allen Head Set Screw (2) 4. Proflo Jr. Case 4. Slide Proflo Jr. all the way onto magnet housing. Torque Allen head set screws to 15 inch-pounds max. DO NOT over tighten set screws. 5. The LED on the Proflo Jr. indicates one complete cycle of the divider valve system. Verify correct operation by pumping oil through the divider valve assembly. The force feed lubricator data plate on the lubricator box indicates either normal and break-in cycle times at maximum rated speed, or normal cycle time for applied speed. Use break-in cycle times only for the first 200 hours of operation before changing to the normal cycle time. If unable to determine cycle time, contact the Ariel Response Center. 6. For Lincoln divider valves it may be necessary to adjust the Proflo Jr. by sliding it back about 1/8” on the magnet housing until the LED flashes. All conduit and connections should be appropriate for area classification. Use flexible conduit to ease installation. Support conduit and fittings to minimize vibration. 7. After Proflo Jr. installation or performance of any maintenance on the lube system, compressor cylinders, or packing, pre-lube the complete system with a purge gun to purge air from the divider valves and all components BEFORE COMPRESSOR START-UP. PAGE 2-6 3/11 12S 12T 1 2 3 4 13 14 5 5. LED 6. Red Wire Leads (2) 7. Orange Wire Leads (2) 8. Yellow Wire Leads (2) 9. Green Wire Lead (1) 12 11 FIGURE 2-4 Proflo Jr. Installation 10. Battery Plug 11. Grounding Lug 12. Battery 13. Divider Valve 14. End Plug 6 7 8 9 10
For Models: JGH:E:K:T Section 2 - Instrumentation Proflo Jr. Battery Replacement 1 1. Proflo Jr. 2. Proflo Jr. Battery Wires 3. Replacement Battery Wires 2 3 4 5 FIGURE 2-5 Proflo Jr. Battery Replacement 4. Heat Shrink Sleeves 5. Replacement Battery 6. Pipe Plug If battery voltage drops below normal operating levels, the Proflo Jr. shuts down and the compressor cannot be re-started until the battery is replaced. The Battery Replacement Kit contains one battery assembly with heat shrink. CAUTION: Do not open the Proflo Jr. in an explosive gas atmosphere. 1. Remove the large silver pipe plug. A large flat bit is required to break the pipe plug free. 2. Plug removal exposes the old battery. Grab the heatshrink on the battery with needle nose pliers and pull the battery out of the housing. Untwist the red and black Proflo Jr. wires. 3. Cut the Proflo Jr. wires free from the old battery as close to the battery as possible. 4. Remove about 3/8 in. of insulation from the ends of the Proflo Jr. wires. 5. Remove about 3/8 in. of insulation from the ends of the replacement battery wires. 6. Slide heat shrink sleeves over the replacement battery wires. 7. Solder the bare ends of the replacement battery wires to the bare ends of the Proflo Jr. wires. Match red to red and black to black. 8. Slide heat shrink sleeves over the soldered wire ends and shrink using a heat gun. 9. Twist battery wires 4 – 5 turns and slide the battery into the Proflo Jr. compartment. 10. Thread the pipe plug back into the Proflo Jr. until the plug top is flush with the case. Digital No-Flow Timer (DNFT) CAUTION: See arc welding caution at the beginning of this chapter. A DNFT is a totally enclosed electronic device that detects slow-flow and no-flow of divider block lubrication systems. It uses an oscillating crystal to accurately monitor the lubrication system cycle time to enable precision timed shutdown capability. The magnet assembly and control housing mount directly to a divider valve. Lubricant flow through a divider valve assembly forces the piston to cycle back and forth causing a lateral movement of the DNFT magnet linked to the piston. The DNFT microprocessor monitors piston movement and resets the timer, lights the LED, and allows the unit to continue operation, indicating one complete cycle of the lubrication system. If the microprocessor fails to receive this cycle within a predetermined time, a shutdown occurs. The DNFT automatically resets the alarm circuit when normal divider valve operation resumes. DNFTs utilize an LED to indicate each cycle of the divider valve, which allows easy adjustment and monitoring of lubrication rates. Programmable models display total pints, cycle time of divider valve, total cycles of divider valve, or pints per day pump rate on a liquid crystal display and operators can adjust alarm time from 20 to 255 seconds. 3/11 PAGE 2-7 6
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For Models: JGH:E:K:T Section 2 - Instrumentation<br />
Proflo Jr. Battery Replacement<br />
1<br />
1. Proflo Jr.<br />
2. Proflo Jr. Battery Wires<br />
3. Replacement Battery<br />
Wires<br />
2 3 4<br />
5<br />
FIGURE 2-5 Proflo Jr. Battery Replacement<br />
4. Heat Shrink Sleeves<br />
5. Replacement Battery<br />
6. Pipe Plug<br />
If battery voltage drops below normal operating levels, the Proflo Jr. shuts down and the compressor<br />
cannot be re-started until the battery is replaced. The Battery Replacement Kit contains one battery<br />
assembly with heat shrink.<br />
CAUTION: Do not open the Proflo Jr. in an explosive gas atmosphere.<br />
1. Remove the large silver pipe plug. A large flat bit is required to break the pipe plug free.<br />
2. Plug removal exposes the old battery. Grab the heatshrink on the battery with needle nose pliers<br />
and pull the battery out of the housing. Untwist the red and black Proflo Jr. wires.<br />
3. Cut the Proflo Jr. wires free from the old battery as close to the battery as possible.<br />
4. Remove about 3/8 in. of insulation from the ends of the Proflo Jr. wires.<br />
5. Remove about 3/8 in. of insulation from the ends of the replacement battery wires.<br />
6. Slide heat shrink sleeves over the replacement battery wires.<br />
7. Solder the bare ends of the replacement battery wires to the bare ends of the Proflo Jr. wires.<br />
Match red to red and black to black.<br />
8. Slide heat shrink sleeves over the soldered wire ends and shrink using a heat gun.<br />
9. Twist battery wires 4 – 5 turns and slide the battery into the Proflo Jr. compartment.<br />
10. Thread the pipe plug back into the Proflo Jr. until the plug top is flush with the case.<br />
Digital No-Flow Timer (DNFT)<br />
CAUTION: See arc welding caution at the beginning of this chapter.<br />
A DNFT is a totally enclosed electronic device that detects slow-flow and no-flow of divider block<br />
lubrication systems. It uses an oscillating crystal to accurately monitor the lubrication system cycle<br />
time to enable precision timed shutdown capability. The magnet assembly and control housing<br />
mount directly to a divider valve. Lubricant flow through a divider valve assembly forces the piston to<br />
cycle back and forth causing a lateral movement of the DNFT magnet linked to the piston. The DNFT<br />
microprocessor monitors piston movement and resets the timer, lights the LED, and allows the unit to<br />
continue operation, indicating one complete cycle of the lubrication system. If the microprocessor<br />
fails to receive this cycle within a predetermined time, a shutdown occurs. The DNFT automatically<br />
resets the alarm circuit when normal divider valve operation resumes.<br />
DNFTs utilize an LED to indicate each cycle of the divider valve, which allows easy adjustment and<br />
monitoring of lubrication rates. Programmable models display total pints, cycle time of divider valve,<br />
total cycles of divider valve, or pints per day pump rate on a liquid crystal display and operators can<br />
adjust alarm time from 20 to 255 seconds.<br />
3/11 PAGE 2-7<br />
6
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