Output characteristics
(continued)
Power supply
Environment
Mechanical
specifications
Display and keyboard
Display (LCD): 4 digit measured value display with optional lighting, segmented
current display in 10% steps, various indicators (communication,
signal underflow, overflow)
Light emitting diodes: 1 yellow status LED for every limit relay (lit = relay energised)
1 red alarm LED, lit = alarm — relay de-energised;
flashing = warning — relay remains energised
1 green LED to indicate power on
Keyboard: 6 keys for parameter entry, option available without keys
Interfaces: 0/4…20 mA, Rackbus RS 485 (option)
Reference conditions: to IEC 770 (T
U
= 25°C) or as specified
Communication interface
Commulog VU 260 Z: 2 communication sockets in terminal compartment
Rackbus RS 485 optional interface for direct connection to a personal computer via
adapter or interface card, or to Rackbus via FXA 675 interface card
Rackbus address via 6-gang DIP-switch in terminal compartment
bus termination via 4-gang switch in terminal compartment
Alternating voltage:
Direct voltage:
230 V / 115 V / 110 V (85...253 V), 50/60 Hz or
24 V / 48 V (20...55V), 50/60 Hz or
24 V (16...60V),
residual ripple max. 2 V
pp
within tolerance
Power consumption: max. 7 W, switch-on current 880 mA
Safe isolation: between power supply and signal outputs, CPU, Rackbus RS-485,
switch-on current 880 mA and electronics
Operating temperature:
Limiting temperature:
Storage temperature:
0°C…60°C
-20°C…60°C
-40°C…80°C
Climatic class: to Table 10, Class R, DIN 40 040, instrument outdoors,
average annual humidity 95%, dew permissible
Ingress protection: IP 66 with closed housing and corresponding cable glands
IP 40 with open housing, IP 20 with open terminal compartment
Electromagnetic
compatibility:
Emission to EN 50 081-2, industrial use
Immunity to EN 50 082-2
and NAMUR industrial standard, at 10 V/m
Vibration resistance: to Table 6, Class W, DIN 40 040
Explosion protection: [EEx ia] IIC, FM, CSA see also "Notes on Safety"
Housing: for wall- or post-mounting
Dimensions (l x b x h) 292 mm x 176 mm x 253 mm, see Fig. 2.3
Weight: 2.6 kg
Materials: body ABS (acrylnitrilbutadenestyrol)/PC (polycarbonate), RAL 5012 (blue)
transparent cover, polycarbonate
front panel, blue with white field for labelling
Electrical connection
Cable entries: 5 pre-stamped cable entries Pg 16 each in bottom and rear of terminal
compartment
4 pre-stamped cable entries Pg 13.5 in bottom
Prolevel FMC 661 Chapter 1: Introduction
Endress+Hauser 11
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