Endress+Hauser Prosonic FMU 862 - Page 14

Display and Operating Interface Display and operating elements in IP 66 field housing
Display (LCD) – 4½-character display, optional lighting
– with segment display of current in 10 % steps
– Display elements: error, signal overflow or underflow,
communication
LEDs – one yellow LED each for indicating the switching status
of the relay (lit = relay energised)
– one yellow LED error indication (lit = error-free operation)
– one green LED indicates error-free indication
(lit = error-free operation, flashing = warning)
Counter – FMU 861 standard only, FMU 862 optional
– Version: six-character, cannot be reset
Software counter – FMU 861 standard only, FMU 862 optional
Communication interfaces
Handheld terminals – INTENSOR: Commulog VU 260 Z
– HART: Universal HART-Communicator DXR 275
Commuwin II operating program from Endress+Hauser – via Commubox FXA connection to serial interface
RS 232C of a PC
Rackbus RS 485 – via FXA 675 interface board connection to Rackbus
RS 485 network
Synchronising connection – Parallel link for up to 20 instruments if several
sensor cables are laid together over long distances.
Power Supply
AC 180…253 V (50/60 Hz), 90…132 V (50/60 Hz),
38…55 V (50/60 Hz), 19…28 V (50/60 Hz)
DC
Power consumption
20…30 V (residual ripple within tolerances)
max. 12 W (typical 8 W), max. 500 mA at 24 V DC
Ripple with Smart transmitters INTENSOR max. ripple (measured to 500 W) 0…500 kHz:
U
PP
=30 mV
HART max. ripple (measured to 500 W) 47…125 Hz:
U
PP
=200 mV
max. noise (measured at 500 W) 500 Hz…10 kHz:
U
eff
=2.2 mV
Reliable galvanic isolation between current output, relay outputs, interfaces, power
supply and sensor inputs
Sensor cable common, two-wire screened cable
Maximum values: to 6 Ω per wire, max. 60 nF
Certificates and Approvals
Ignition protection see Product Structure Page 15
CE Mark By attaching the CE Mark,, Endress+Hauser confirms that
the instrument fulfils all the requirements of the relevant EC
directives.
Order Code
See "Product Structure"
Supplementary Documentation
Technical Information TI 189F/00/en Prosonic Ultrasonic Sensors FDU 80…86
Operating Instructions BA 100F/00/en Prosonic FMU 860…862
14