Devices with temperature range above 1400°C are equipped with a continuously adjustable eye protection filter
in the eyepiece to reduce glare at high measurement temperatures. Rotating the eyepiece will change the
brightness.
CAUTION
SAFETY INSTRUCTIONS
▪ Sight objects with temperatures above 1400°C / 2552°F only with the eyepiece darkened to protect the eyes
from glare at high radiation temperatures.
▪ Before looking at the high temperatures, always first adjust the eyepiece by turning it to the darkest position.
5.4.3 Alignment with the Camera Module
Pyrometers with a color camera module provide a com-
posite video output that can be connected to a TV or
monitor or PC via converter. The pyrometer is focused
and aligned via a target circle on the TV screen.
About the field of view of approximately 3.6% x 2.7% of
the measured distance also the measurement events
can be observed. About the PC software, image over-
lays and monitor settings can be configured (in the
Connection Window
INFO
about the target circle size: The size of the target circle does not match to the spot size; spot sizes
are given in the
INFO
The camera module is turned off at a device temperature above 55°C / 131°F.
If the camera module does not turn on, probably the device's internal temperature is too high. In this case, the
place of installation of the pyrometer should be checked (excessive heat radiated from the measuring object).
When temperature falls below 55°C / 131°F the camera module is working again.
5.5
Adjusting the Measuring / Focus Distance
The focus distance is the distance at which the lens has the smallest spot size. In most cases, this distance is
also the required measuring distance. With focusable optics the focus distance can be changed continuously
within a predetermined range, so the smallest possible spot size is always achieved.
5.5.1 Manually Focusable Optics
▪ Release optics turn counterclockwise
▪ Move optics in or out until the measured distance is found (see
ment onto the measuring object or via the optics pull-out in the spot size
tables, see section 5.6).
- Pulled optics: short measuring distance
- Inserted optics: long distance measurement
▪ Lock optics turn clockwise (hand-screwed, without tools).
5.5.2 Motorized Focus Optics (only M3)
▪ Set the measuring distance with the arrow push buttons
the set distance is displayed on the device display for a few seconds, then will
return to the measurement temperature.
▪ The distance also can be set via software (see 7, SensorTools Software).
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at measurement temperatures above 1400°C / 2552°F, risk of eye damage.
or
control window
Spot Size
Tables.
METIS M311 / M322 / H311 / H322 (12-pin device connector)
→
monitor
settings).
5.4
on the device,
TV connector
1. Release
2. Adjust
Align-
3. Lock
1
2
3
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