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

Technical data
54
T
a
[°F] [°C]
158 70
140 60
122 50
104 40
86 30
68 20
50 10
32 0
-60 -30
-76 -22
 55 Permitted ambient temperature T
A Device without LED module; at process temperature 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
B: 60 °C
Ordering information:
• Product Configurator, order code for "output", option "1"
Ambient temperature –60 °C (–76 °F), optionally available for order
• Product Configurator, order code for "output", option "2"
Ambient temperature –52 °C (–62 °F), optionally available for order.
Low-temperature electronic inserts are marked LT.
• Bluetooth module (non-Ex): –40 to +85 °C (–40 to +185 °F)
• Bluetooth module (Ex ia): –40 to +65 °C (–40 to +149 °F), T4
• LED module: –40 to +60 °C (–40 to +140 °F)
Outdoor operation in strong sunlight:
• Mount the device in the shade.
• Avoid direct sunlight, particularly in warmer climatic regions.
• Use a weather protection cover, which can be ordered as an accessory
14.3.2

Storage temperature

–40 to +80 °C (–40 to +176 °F)
optional: –52 °C (–62 °F), –60 °C (–76 °F)
14.3.3

Humidity

Operate up to 100 %. Do not open in a condensing atmosphere.
0 +30 +60 +90
32 +86 +140 +194
at the housing as a function of the process temperature T
a
> 90°, with FEL64 and max. load current 4 A
p
> 90° max. load current 2 A
p
Liquiphant FTL51B
A
B
+120 +150
[°C]
+248 +302 [°F]
in the vessel:
p
Endress+Hauser
T
p
A0037923