Safety Instructions: General; Safety Instructions: Special Conditions - Endress+Hauser Liquiphant M FTL50 Bedienungsanleitung

XA00031F-I
Safety instructions:
General
Safety instructions:
Special conditions
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Device type FTL50, FTL50H, FTL51, FTL51H
Device type FTL51C, Basic specification, Position 5, 6 (Probe Length; Type) = xN, xS
Description
ATEX II 1/2 G Ex db IIC T6...T3 Ga/Gb
IECEx Ex db IIC T6...T3 Ga/Gb
Device type FTL51C, Basic specification, Position 5, 6 (Probe Length; Type) = xL, xM, xK
Description
ATEX II 1/2 G Ex db IIB T6...T3 Ga/Gb
IECEx Ex db IIB T6...T3 Ga/Gb
Device type FTL70, FTL71
Description
ATEX II 1/2 G Ex db IIC T6...T1 Ga/Gb
IECEx Ex db IIC T6...T1 Ga/Gb
• Staff must meet the following conditions for mounting, electrical installation, commissioning and
maintenance of the device:
– Be suitably qualified for their role and the tasks they perform
– Be trained in explosion protection
– Be familiar with national regulations
• Install the device according to the manufacturer' s instructions and national regulations.
• Do not operate the device outside the specified electrical, thermal and mechanical parameters.
• Only use the device in media to which the wetted materials have sufficient durability.
• Avoid electrostatic charging:
– Of plastic surfaces (e.g. housing, sensor element, special varnishing , attached additional plates, ..)
– Of isolated capacities (e.g. isolated metallic plates)
• Refer to the temperature tables for the relationship between the permitted ambient temperature
for the sensor and/or transmitter, depending on the range of application, and the temperature class.
• Modifications to the device can affect the explosion protection and must be carried out by staff
authorized to perform such work by Endress+Hauser.
• Only open the device under one of the following conditions: 17 minutes have elapsed since the power
supply was switched off.
Permitted ambient temperature range at the electronics housing: →  22, "Temperature tables".
• In the event of additional or alternative special varnishing on the housing or other metal parts:
– Observe the danger of electrostatic charging and discharge.
– Do not rub surfaces with a dry cloth.
Basic specification, Position 8, 9 (Housing; Cable Entry) = x1
• Covers with glass window not permitted.
Basic specification, Position 8, 9 (Housing; Cable Entry) = x5, x7, x8
• Avoid sparks caused by impact and friction.
• Covers with glass window only permitted for the following ambient temperatures:
–50 °C T  +70 °C.
a
Liquiphant M, Liquiphant S
Endress+Hauser