The Satisloh Micro-Blocker is available either as a manual blocker (it does not interface to Rx-Universe), or as a unit with a camera, which does interface to an LMS. In both cases, the blocker is available with a limited set of blocking rings available. Two sets of blocking rings are commonly available (Starter Kit and Advanced Kit):
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53x7 (no prism)
53x10 (no prism)
58x7 (no prism)
58x13x2' (58x7 + 2' 58x6 prism ring)
58x13x4' (58x7 + 4' 58x6 prism ring)
63x7 (no prism)
63x13x2' (63x7 + 2' 63x6 prism ring)
63x13x4' (63x7 + 4' 63x6 prism ring)
68x7 (no prism)
68x13x2' (68x7 + 2' 68x6 prism ring)
68x13x4' (68x7 + 4' 68x6 prism ring)
So, the Micro-Blocker can block either no prism, 2 angular degrees, or 4 angular degrees of prism. The Micro-VFT can generate up to 2 angular degrees of prism, so as much prism as possible must be blocked in order to maximize the total prism on the job.
Identifying An Interfaced Micro-Blocker Blocker in Rx-Universe
If using a Micro-Blocker that will be interfaced to Rx-Universe, the "Micro blocker" option must be checked in the device setup:
Checking this ensures that only 0', 2', and 4' will be sent to the blocker, matching the prism on the block that was selected.
Setting Up Micro-Blocker Blocks in Rx-Universe
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The work ticket will display the blocking ring to be used, to the operator:
Note that since the blocker doesn't In the case of a blocker which does not interface with the LMS, there is no way to confirm the right blocking ring is used. The responsibility thus falls to the lab to ensure proper blocking is done. In the case of a Micro-Blocker which has an interface to the LMS, Rx-Universe will send the amount of prism in the blocking ring as KPRVM, because this is the amount of prism to be blocked. (The value sent in KPRVM is the same, conceptually, as if a prism blocker like the PRA were used. However, the KPRVM will be limited to either 0', 2', or 4', to correspond with the prism blocking rings available).
Digital Jobs
When using a Micro-Blocker and interfacing with a digital calculator, the digital calculator must support the Micro-Blocker interface. This is necessary because the digital calculator determines the amount of prism to be blocked (returned in KPRVM), the amount of prism that will be incorporated into the design (returned in LDPRVM) and the amount of prism to be generated (returned in GPRVM). There is no provision for an LMS to determine the amount of prism to be blocked and then inform the digital calculator, so the calculator itself must be capable of supporting the Micro-Blocker interface.
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