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6 Instrument description
Operating
medium
Time constant
t
0.632
Mode of
operation
Nominal
position
Weight
Capillary/
probe material
Minimum
bending radius
of capillary
Switching point
accuracy
22
water, oil, air, superheated steam
in water
≤ 45 sec
to EN 60 730-1 and EN 60 730-2-9
STB:
2 BFHKLP
Explanation of codes:
2 mode of operation type 2
B automatic mode of operation with microswitch disconnection
F can only be reset with tools
H free-release mechanism,
contacts cannot be prevented from opening
K with probe break protection
L no auxiliary power required
P mode of operation type 2, verified through declared temperature cycling
unrestricted
approx. 0. 3 kg
End of scale
Capillary
up to +200°C
copper, Mat. Ref. 2.0090
1.5 mm dia.
up to +350°C
copper, Mat. Ref. 2.0090
1.5 mm dia.
up to +350°C
st. steel, Mat. Ref. 1.4571
1.5 mm dia.
5 mm
(in % of scale span;
referred to the set limit at T
STB
in upper third of scale
at scale start
in oil
≤ 60 sec
at extra cost
+22°C)
A
+0
%
-5
+0
%
-10
in air / superheated steam
≤ 120 sec
Probe
copper, Mat. Ref. 2.0090
brazed
st. steel, Mat. Ref. 1.4571
brazed
st. steel, Mat. Ref. 1.4571
welded
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