THORLABS PTR306, Руководство пользователя

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PTR306 / PTR306B Recoaters with Linear Proof Testers Chapter 6: Controlling the PTR306/PTR306B
Rev D, October 2, 2020 Page 13
Peak Tension: The load or tension to which the fiber is to be proof tested in grams, GPa, kpsi, lb, or N.
Ramp Time: The approximate time in seconds required to reach the Peak Tension.
Hold Time: Also referred to as “Dwell Time”, the amount of time in seconds that the Peak Tension
is held for.
6.3.4. Advanced Parameters
Advanced parameters are accessed from the toolbar since they are rarely modified.
Shrink Factor: For Auto Inject, PTR306 only. The Shrink Factor is the amount of material injected into
the recoat mold during the early stages of curing. This is entered as a percentage of
the initial Inject volume and is intended to compensate for material shrinkage during
cure. Typical values for Shrink Factor are 3 to 6%.
Shrink Time: For Auto Inject, PTR306 only. Shrink Time specifies the time period over which any
additional material is injected into the mold during cure. It is expressed as a percentage
(%) of Cure Time.
Momentary Injection:
For Auto Inject, PTR306 only. This can be enabled or disabled. When enabled, pressing
the Inject button on the PTR306 causes the machine to inject recoat material for as
long as the Inject button is down. When disabled, pressing the Inject button causes the
predefined Inject Quantity to be injected. Note that pressing the Inject button on the
controller will always deliver the predetermined Inject Quantity.
Lamp Set 1 Start: Specifies the switch-on time of Lamp Set 1 as a percentage (%) of Cure Time
(sequenced mode only).
Lamp Set 1 Stop: Specifies the switch-off time of Lamp Set 1 as a percentage (%) of Cure Time
(sequenced mode only).
Lamp Set 2 Start: Specifies the switch-on time of Lamp Set 2 as a percentage (%) of Cure Time
(sequenced mode only).
Lamp Set 2 Stop: Specifies the switch-off time of Lamp Set 2 as a percentage (%) of Cure Time
(sequenced mode only).
6.4. Priming the PTR306/PTR306B
Cleaning Recoat Mold
The recoat mold assembly contains two very flat quartz plates, each with a semi-circular channel running
longitudinally down the center of their mating surfaces. One plate is mounted in the hinged top which, when closed,
forms a circular mold cavity with the bottom plate. In order for the top and bottom plates to mate flush together, they
must be cleaned of all dirt and/or coating particles.
The quartz mold plates can be cleaned with a cotton swab wetted with acetone or isopropyl alcohol. Acetone cleans
more thoroughly than alcohol and will also soften and lift away any cured recoat material. Do not use excessive
scrubbing or scraping action to clean the mold plates. Typically a single wipe from left to right across both top and
bottom mold plate is sufficient to clean the plates.
If the recoat mold does have an accumulation of cured recoat material stuck to the plates, allow the cleaning solution
(preferably acetone) time (60-90 seconds) to soften and lift any cured material. The soft Thorlabs “toothbrush”
provided can be used occasionally to clean the mold channels of any cured coating particles.
Note: The top surface of the bottom mold plate has an optical coating that blocks UV light. Great care must be
taken not to scratch or abrade this coating. Do not rub any hard objects across the surface of the plates as this
could scratch the optical coating or chip the edges of the mold channel and degrade the quality of the recoat.