Operating Manual Owner's manual

25
6 Instrument description
Switching point
accuracy
(in % of scale span; referred to setpoint or limit value
at T
A
+22 °C, with rising temperature)
Protection EN 60 529 - IP00
Pollution degree 2
Operating
medium
water, oil, air, superheated steam
Time constant
t
0.632
Mode of
operation
as per EN 60 730-1, DIN EN 60 730-2-9 and DIN EN 14597
TR, TW 2 BL
TB 2 BFHLPV
STW(STB): 2 BKLNP
STB 2 BFHKLNPV
Explanation of codes:
2 mode of operation type 2
B automatic mode of operation with micro-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
V lockout
Type EM-...
Switching differential in % Switching point accuracy in %
liquid-filled gas-filled
in upper third of
scale or at limit
at start of scale
11 / 2.5
5
7
- -
3 / 5
6 / 10
± 1.5
± 3,5
± 4,5
± 4
± 5
± 6
2, 3 1 / 2.5
5
7
- -
3 / 5
6 / 10
+ 0 / - 3
+ 0 / - 6
+ 0 / - 8
+ 0 / - 5
+ 0 / - 8
+ 0 / - 10
4, 4/
574 ,
5, 5/
574
- - - - +0 / -5 +0 / -7
20, 30 7 10
+0 / -8 + 0 / - 10
40, 40/574,
50, 50/574
- -
- -
in water in oil in air / superheated
steam
≤ 45 sec ≤ 60 sec ≤ 120 sec