Telesis PINSTAMP TMP4100 Series, Installation & Maintenance

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TMP4100-Series Installation/Maintenance
1-8
33480D01.DOC
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If the supply air is extremely dirty, additional customer-supplied filters may be needed upstream of the
filter unit.
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The filter unit must be located to allow servicing and draining without damaging other equipment.
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Do not install the filter unit in an area subject to direct sunlight, impact blows, or extreme temperatures.
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Do not install the filter unit where it will be exposed to aldehydes, keytones, alcohol, or hot water.
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Install the regulator so the air flows in the direction of the arrow on the body of the filter unit.
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The filter unit bowls must be mounted vertically with the bowl drains at the bottom to permit draining.
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Each port of the filter unit must be plumbed (e.g., pressure gauge, line fitting, socket pipe plug).
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The customer-furnished supply line to the filter unit should be 1/2-in. (13 mm) inside diameter.
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The filter unit requires a 1/4-in. (6 mm) NPT supply air inlet fitting (supplied by customer).
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Apply a minimal amount of pipe joint compound to the male threads (only) to seal the pipe joints.
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Do not use Teflon
®
tape to seal the pipe joints. Do not apply pipe joint compound to female threads.
1.4.5 Facility (Supply) Air
TMP4100E:
The TMP4100E does not use air pressure to drive the marking pin. The following section does
not apply to the TMP4100E marker.
TMP4100, TMP4150, TMP4155:
The marking head requires a clean, dry air supply to drive the impact pin. In
most cases, plant air is acceptable. The following guidelines should help you decide if your air supply is
suitable for use with the marker.
Condensation. The process of compressing air creates heat. The compressed air cools as it travels through the
lines away from the compressor. The cooling process causes any moisture in the air to condense.
Condensation is common in hot climates or when air lines are routed outside during cold weather.
Condensation creates problems in the air valves and small openings within the marking head. Because you
can never remove all the contaminates from an air line, a filtering system should be installed as close to the
marker as possible. This reduces the opportunity for moisture in the supply air to condense.
Filtering. The least expensive way to filter the air is to use a coalescing filter. This type of filter causes a
cyclone effect. Swirling air and the resulting centrifugal force throws the oil and moisture particles to the
outside. There it condenses on a wall and runs down to the bottom of the bowl in the less turbulent, quiet area.
The coalescing filter removes solid particles (down to 0.3 microns). If the collection of contaminants becomes
too great, particles can be picked up and placed in suspension in the air. Therefore, Telesis recommends an
automatic drain on the coalescing filter. In addition to aerosol particles, the air may contain dust, dirt, and
metal shavings. If the air is very dirty, a pre-filter can be used to remove the larger (5 micron) particulate
matter.
Air Flow. The cyclone effect (see above) cannot occur if there is little or no flow of air. Telesis
markers use
much less air at idle than when marking. So it’s during the idle time that the aerosol particles have a chance to
cool and condense on the walls of the cartridge and pin. Most filter manufactures recommend a minimum air
flow of 20% of the maximum rated flow for their equipment to be effective. This is not a problem during
marking because the rate of air consumption is relatively high. A controlled orifice opening (open to the air)
can be constructed to keep the flow during idle at or above 20% of the flow rate. The controlled orifice should
be located as close as possible to the marking head.