Endress+Hauser micropilot FMR 231 E Sicherheitshinweise Seite 12

en XA 018F-A
Uo ≤ 17.5 V
Certified
associated Io
Po ≤ 4.9 W
apparatus
Option HAW 262 Z
Housing F12
Version PPS antenna
PTFE antenna
Sanitary connection
PVDF threaded
connection
Safety notes for installation in hazardous areas:
1) Install according to the manufacturer's instructions and other valid standards and guidelines.
2) The intrinsically safe circuit of the Micropilot FMR 231 is galvanically isolated from ground potential and has a dielectric
strength of 500 Vrms with respect to it.
3) The dependency of the permissible ambient temperature of the electronic housing upon the application and temperature
class is given in Tables 1 and 2.
4) If the housing is realigned, check that the locking screw is screwed tight again, see operating manual.
5) Special conditions (X Mark):
The level measurement transmitter Micropilot, type FMR 231 with fully isolated (white) PTFE antenna, has areas of
plastic, on which electrostatic charge can build up. A label warns of this danger:
The special conditions do not apply to Zone 1 applications involving Material Groups IIA and IIB, when the FMR 231 used is
of the type:
– short PTFE antenna (length 390 mm) with metal threaded connection or unclad flange.
– short PTFE antenna (length 390 mm) with clad flange of nominal diameter ≤ DN 100 (≤ ANSI 4", ≤ 100K).
6) For instructions on grounding the cable screening, see Figs. 3 and 4.
7) Operating temperature of the cable: ≥ Tamb +5 °C.
Table 1
Zone 1 applications
Temperature class Temperature of potentially explosive atmosphere
T6
T6
T5
T5
T4
T4
T3, T2, T1
T3, T2, T1
*) PVDF process connection, PPS antenna: restricted temperature range
4
PROFIBUS-PA
≤ 280 mA
FISCO model
[EEx ia] IIC or [EEx ib] IIC
instrinsically safe power and
signal circuit
–40 °C ≤ Tamb ≤ 80 °C
–20 °C ≤ Tamb ≤ 120 °C
–40 °C ≤ Tamb ≤ 150 °C
–40 °C ≤ Tamb ≤ 150 °C
–20 °C ≤ Tamb ≤ 80 °C
"Avoid electrostatic charging of the antenna"
(e.g. do not rub dry, do not install in filling stream).
(antenna in Zone 1)
–40...+ 80 °C
–40...+ 50 °C
–40...+ 95 °C
–40...+ 65 °C
–40...+130°C
–40...+ 80 °C
–40...+150°C
–40...+ 80 °C
e.g. route armoured hose up to housing
optionally with or without operating and display module VU 330
See note 5)
See note 5)
See note 5), 11)
*)
Ambient temperature
(at electronics housing / electronics housing in Zone 1)
Micropilot FMR 231 E
–40...+40 °C
–40...+50 °C
–40...+55 °C
–40...+65 °C
–40...+65 °C
–40...+80 °C
–40...+55 °C
–40...+80 °C
Endress+Hauser