Xylem WTW DIQ/S 281, Руководство по эксплуатации

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Technical data DIQ/S 281
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ba77244d01 08/2020
Electrical
connections
DIQ/S 28X-CR2
The electrical connections are inside the housing.
Assignment of the terminal strips: See section 3.12.
Relay
(2 x)
Current outputs
(2 x)
Connecting
terminals
Output Galvanically separated
Max. switching voltage 240 VAC or 24 VDC
Max. switching current 2 A (AC and DC)
Installation require-
ments Fuse rating on the operator side: max. 2 A
Relay functions Programmable as:
– Opener or closer
– Limit monitor
– Monitoring of the warning and error signals of the
DIQ/S 28X
– Proportional frequency output
– Proportional pulse width output
Output Galvanically separated from the sensors
Output current Can be switched between 0 - 20 mA and 4 - 20 mA
In the case of errors, can be set to: 0 ... 21 mA
Max. initial output volt-
age 13 V, in the case of missing or incorrect burden
Accuracy 0.3 % of current value ± 50 µA,
load max. 500
Ω
Functions Programmable:
– Recorder attenuation, adjustable 0 - 40 mA/s
– Error behavior can be set as required 0 ... 21 mA
– Error behavior according to Namur NE43 can be
selected
– Positive and negative characteristic curve
– PID controller
Terminal type Screw-type terminal strip, accessible by raising the
lid
Terminal ranges Solid wires:
Flexible wires:
0.2 ... 4.0 mm
2
AWG 24 ... 12
0.2 ... 2.5 mm
2