Storage Temperature; Humidity; Operating Altitude - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Liquiphant FTL51B
Endress+Hauser
T a
[°F]
158
T a
140
122
32
T p
-40
-58
-76
 52 Permitted ambient temperature T
A Device without LED module; at process temperature and FEL64 T
B Device with LED module; at process temperature and FEL64 T
For devices with a temperature spacer, the following ambient temperatures apply across
the entire process temperature range:
A: 70 °C (158 °F)
B: 60 °C (140 °F)
Outdoor operation in strong sunlight:
• Mount the device in a shaded location
• Avoid direct sunlight, particularly in warmer climatic regions
• Use a weather protection cover, can be ordered as an accessory
• Low temperatures are not possible for SIL
• Bluetooth module:
• –50 °C (–58 °F) for non-Ex, Ex ia and Ex d
• –60 °C (–76 °F) for non-Ex
• LED module:
• –50 °C (–58 °F) for non-Ex, Ex ia and Ex d
• –60 °C (–76 °F) for non-Ex
Hazardous area
In the hazardous area, the permitted ambient temperature can be limited depending on
the zones and gas groups. Pay attention to the information in the Ex documentation (XA).
14.3.2

Storage temperature

–40 to +80 °C (–40 to +176 °F)
Optional: –50 °C (–58 °F), –60 °C (–76 °F)
14.3.3

Humidity

Operation up to 100 %. Do not open in a condensing atmosphere.
14.3.4

Operating altitude

As per IEC 61010-1 Ed.3:
• Up to 2 000 m (6 600 ft) above sea level
• Can be extended to 3 000 m (9 800 ft) above sea level if overvoltage protection is used
T a
[°C]
70
60
50
0
-40
-50
-60
-50 0
-58 32
at the housing as a function of the process temperature T
a
Technical data
A
B
+90 +120 +150 [°C]
+194 +248 +302 [°F]
> 90 °C max. load current 4 A
p
> 90 °C max. load current 2 A
p
T p
T p
A0045128
in the vessel:
p
57