16
position 0
(retracted position) of the push button (
PB
) to protect
the tip from breaking.
The protective cap (
PC
) covering the needle has to be removed
carefully before using the sensor.
CAUTION:
Remove only the protective cap, but not the needle!
Then the sensor should be fixed in a stable set-up like a solid
laboratory stand or a micromanipulator mounted on a heavy stand
from
PyroScience
. Move gently the push-button from the
retracted position
0
to one of the extended
positions 1-3
. In
position 1
the sensor tip is flush with the needle tip, whereby
in
positions 2
or
3
the fragile sensor tip extends ca. 6 mm or 12 mm
out of the needle.
Please take care when handling the needle-type sensors to prevent
injuries and breaking of the sensor.
Ensure enough space in front of
the fragile sensor tip, especially when pushing it out!
The needle-type
microsensors
(
OXR50
; A) are appropriate for high
resolution measurements in semi-solid samples, like sediments,
biofilms or soils with
PyroScience
turnkey motorized micro-
profiling setups. They allow measurements in small sample
volumes, along steep gradients and of depth-resolved oxygen
profiles at high spatial resolution.
