Siemens LMV50 Series Manual page 119

Measuring range pressure
(can be parameterized)
Input 4: TEMP,
Pt1000 / LG-Ni1000
X60
Building Technologies
Start of measuring range:
End of measuring range:
Detection of sensor short-circuit and line interruption is provided (distance from ends of
the measuring range about 10% of the measuring range).
In the case of DC 0...10 V / 0...20 mA signals, the detection of short-circuits and
line interruptions is not possible.
If a fault is detected, the burner is shut down (changing to the safety phase). If the
short-circuit or line interruption disappears within the safety phase, a change to standby
is made. Otherwise, lockout is triggered.
Parameter MeasureRange PressSensor
2-wire circuit: Line balancing is not required if the resistances of the measuring leads
are small compared to the sensor's resistance.
The function is active.
temperature limiter
Suitable sensors are QAE22.5A, QAE21.1 and QAE2112.0151.
Start of measuring range:
End of measuring range:
For the end of the measuring range of 850 °C (1562 °F), another parameter called
var.RangePtNi is used.
Setting range: Continuously up to 850 °C (1562 °F).
Parameter MeasureRange PtNi (150°C/302°F / 400°C/752°F /
850°C/1562F)
var.RangePtNi
Basic Documentation LMV5...
7 Boiler controller / load controller
0 bar (0 psi)
Continuously up to 100 bar (1,450 psi)
0 ↓C (32 ↓F)
150 ↓C (302 ↓F) or
400 ↓C (752 ↓F)
850 °C (1562 °F)
119/327
CC1P7550en
22.05.2018