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6 Instrument description
Enclosure pro-
tection
Operating
medium
Time constant
t
0.632
Mode of opera-
tion
Operating posi-
tion (NL)
Weight
Capillary and
probe material
Min. bending
radius of the
capillary
22
EN 60 529 - IP 65
Water, oil, air, superheated steam
in water
45 s
according to EN 60 730-1
TW,TB:
Type 2BL = automatic action with micro-disconnection in
operation, no auxiliary supply required.
STW:
Type 2BKL = automatic action with micro-disconnection in
operation, fail-safe.
STB:
Type 2BFKL = automatic action with micro-disconnection in
operation, fail-safe, reset only permissible by means of a tool.
To DIN 16257, NL 0 — NL 90 (other NL on request)
approx. 1.2 kg
End of scale
Capillary
up to +200°C
copper, Mat. Ref. 2.0090
electro-tinned
1.5 mm diameter
up to +300°C
copper, Mat. Ref. 2.0090
electro-tinned
1.5 mm diameter
up to +500°C
stainless steel,
Mat. Ref. 1.4571
1.5 mm diameter
up to +300°C
stainless steel,
Mat. Ref. 1.4571
1.5 mm diameter
5 mm
in oil
in air / superheated
60 s
Probe
copper, Mat. Ref. 2.0090
electro-tinned
brazed
stainless steel,
Mat. Ref. 1.4571
brazed
stainless steel,
Mat. Ref. 1.4571
welded
stainless steel,
Mat. Ref. 1.4571
welded
steam
120 s
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