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7 Technical data
Mid ambient temperature influence Deviation of the ambient temperature at the switching head and/or capillary
from the 22 °C calibration ambient temperature produces a switching point off-
set.
Higher ambient temperature = low switching point
Lower ambient temperature = higher switching point
TR, TW, TB STW,
STB
TR, TW, TB STW, STB TR, TW, TB, STW,
STB
For temperatures with scale limit
value/limit value
< 200 °C ≥ 200 °C ≤ 350 °C ≥ 400 °C ≤ 500 °C
Switching differential in % 1/2.5 5 7 7/- 1/2.5 5 7/- 3/5 6 10
Ambient temperature influence
on the switching head in %/°C
0.15 0.26 0.34 0.43 0.12 0.21 0.35 0.12 0.17 0.24
Ambient temperature influence
on the capillary in %/m
0.05 · °C · m 0.09 · °C · m 0.09 · °C · m 0.07 · °C· m 0.05 · °C · m
Temperature compensation (TK) For detailed information see diagram.
Temperatures
Admissible storage temperature -50 to +50 °C
Admissible ambient temperature
for use
80 °C max.
Nominal position (NL) Any
Operating medium Water, oil, air, superheated steam
Time constant t
0.632
In water ≤ 45 s
In oil ≤ 60 s
In air or superheated steam ≤ 120 s
Mode of operation According to EN 60730-1, DIN EN 60730-2-9, DIN EN 14597
TR, TW 2 BL
TB 2 BFHLPV
STW (STB) 2 BKLNP
STB 2BFHKLNPV
Declaration:
2 Mode of operation type 2
B Automatic mode of operation with micro disconnection
F Only adjustable with tool
H Release mechanism whose contacts can not be prevented from opening
K With probe break protection
L No auxiliary energy required
P Mode of operation type 2, tested by declared temperature changes
V Lockout
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