METIS M308 / M309 / M313 / M316 / M318 / M323 / H309 / H316 / H318 (12-pin)
Mechanical Installation
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5.6 Spot Size Tables
The following tables show the optical data of the different device types. The values in the tables are ex-
emplary, intermediate measurement distances must be determined by interpolation. If the measuring
distance (= focused distance) differs from the adjusted or specified, a measurement is also possible, but
the spot size changes (usually it is larger, see 5.6.7 Calculation of the spot size diameter outside the
focused distance). Measuring distances at manually focused optics are specified
from lens front, at motorized optics from the protection window.
5.6.1 Manually Adjusted or Motorized Focus Optics with laser targeting light or view finder
Model
Temperature ranges
[°C]
M308: all temperature
ranges
M318: 100-700°C
H316: ZSC <400°C
H318: 120–520°C
M309: all ranges
M316: all ranges
M318: 150–1200°C
180–1300°C
H309: all ranges
H316: ZSC ≥400°C
H318: 180–800°C
Spot size diameter M [mm]
Aperture diameter D: Full scale temperature value ≤ 1400 °C: 14–16 mm; > 1400 °C: 7–8 mm ZSC = Zero-scale temperature
(D is dependent on the optics pull-out: optics pulled out: higher value, optics inserted: smaller value)