User Manual

DESCRIPTION:
The “Donut” Screen Printing Probe is specially designed
to meet the needs of today’s Screen Printers.
Constructed of temperature-resistant Teflon®, it may be
used hundreds of times without degradation of material or
accuracy of measurement.
The sensor wires are constructed of very fine gauge alloy
metals, especially chosen for their temperature-sensing
properties. The wires are designed to make DIRECT
CONTACT WITH THE INK. Many other temperature
measuring devices are capable of reading only the
temperature of the air around the silk screened item. The
rise and fall of the ink temperature may be significantly
different than that of the garment or the surrounding air.
OPERATION:
Testing Ink Temperatures - With the thermometer on
and probe plugged in, place the “ring” over an inked part
of a garment (or scrap piece of material) with the
cross-hairs wires down. Be sure the wires are actually
touching the ink. Allow the garment and probe to be fed
into the dryer along the conveyor belt. The temperature
displayed by the thermometer reflects the rise in
temperature of the ink as it moves through the dryer.
When the temperature begins to quickly decline, the
probe should now have exited the dryer. Unplug the probe
and allow only the lead wire to follow the probe through
the dryer. DO NOT ALLOW THE THERMOMETER TO
GO THROUGH THE DRYER and DO NOT PULL RING
BACK as this could damage the delicate cross-hair wires.
Testing Internal Dryer Temperature - With the
thermometer on and probe plugged in, place the ring on
the conveyor belt with the cross-hair wires
UP . Leaving
them down will only take the temperature of the conveyor
belt. This should be done three times; once on the right,
once on the left, and once in the middle of the conveyor
belt. By recording the temperatures at five second
intervals, it can be determined if your dryer is heating
consistently. Save this as a permanent record for future
reference. “Cold” spots can result in the ink not fully
curing. NOTE: This procedure is not to be used on
INFRA-RED dryers as they do not heat the air!
REPLACEMENT OF CROSS-HAIR SENSOR WIRES:
Should you find the cross-hair wires to be in need of
replacement due to damage or normal wear and tear, they
can be replaced as follows: Tools Needed:
• Medium Phillips Screwdriver
• Needle Nose Pliers
• Replacement Sensor Wire Kit (Part #10830-)
Observe the position of the wires before removal. If they
are not replaced in exactly the same way, the probe will
not work properly. Loosen the screw holding the RED
wire in place. Unwind the sensor wire from the screw and
remove it by pulling on the spring end. Discard the
defective wire. Feed the replacement RED wire through
the donut in the opposite direction of removal. Pulling it
snug with the needle nose pliers, wrap it around the
screw. Tighten the screw back down, leaving little or no
wire extending from under the screw head (if more than
1/8 inch of wire extends, faulty readings could occur).
Repeat for the YELLOW wire. If you still observe faulty
readings, see the troubleshooting section below.
TROUBLESHOOTING THE THERMOMETER
AND PROBE:
If the unit reads “-1” or flashes random negative
temperatures, be sure the probe is plugged in and the
cross-hair wires are touching each other. If “LO BATT”
appears on the display, the battery needs replacement,
refer to the 38653 / 39658 instruction sheet packed with
the thermometer. If readings are lower than you believe
they should be, make sure the cross-hair wires are
actually touching the ink. Also be sure neither of the
cross-hair wires is touching the metal nuts on the ring.
When replacing the cross-hair wires, note that the wires
are color coded. It is essential that the wires are matched
up RED to RED and YELLOW to YELLOW. The probe
will not function properly otherwise.
REPAIRS:
Our repair department is available Monday through Friday
8:00am to 5:00pm Eastern Standard Time, please call
800-835-5011.
USER INSTRUCTIONS
Screen Printers Temperature Probe Model No. 50008-K
(As included in kit #93916-K and #93816-K)
Cooper-Atkins Corporation, 33 Reeds Gap Road, Middlefield, CT 06455
[phone] • FAX: [phone] • www.cooper-atkins.com
An ISO 9001 Registered Facility
Screen Printers
Temperature Probe
Model #50008-K
27-958536