XA01554F-A Micropilot FMR67
18 Endress+Hauser
• After aligning (rotating) the housing, retighten the fixing screw (see Operating Instructions).
•
Install the device to exclude any mechanical damage or friction during the application.
Pay particular attention to flow conditions and tank fittings.
• Only use certified cable entries or sealing plugs. The metal sealing plugs supplied meet this
requirement.
• Before operation:
– Screw in the cover all the way.
– Tighten the securing clamp on the cover.
• After mounting and connecting the antenna, ingress protection of the housing must be at least
IP65.
• Perform the following to achieve the degree of protection:
– Screw the cover tight.
– Mount the cable entry correctly.
• Continuous service temperature of the connecting cable: –40 °C to ≥ +85 °C; in accordance with the
range of service temperature taking into account additional influences of the process conditions
(T
a,min
), (T
a,max
+20 K).
Basic specification, Position 3 (Power Supply, Output) = K
Connect the protective ground to the device.
Intrinsic safety
The device can be connected to the Endress+Hauser FXA291 service tool: refer to the Operating
Instructions.
Temperature tables
→ 32
Connection data Connection compartment Ex tb
Basic specification, Position 3 (Power Supply, Output) = A
Terminal 1 (+), 2 (–)
Power supply:
U
N
= 35 V
DC
U
m
= 250 V
I
N
= 4 to 20 mA
I
max
= 22 mA
P
N
= 0.7 W
Basic specification, Position 3 (Power Supply, Output) = B
The power consumption of
I/O modules with passive PFS output can be limited for certain
applications.
• Recommended: Power consumption = 1 W. This is obtained for a supply voltage at the terminals of
27 V
DC
.
• For higher supply voltages (U
max
): Insert a serial resistance (R
V
) in order to limit the power
consumption, see table below.
Table for the PFS serial resitance (R
V
):
Power consumption 1.0 W
Total power consumption 1.88 W
Internal resistance R
I
760 Ω
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