Grundfos Conex DIA-2, Installation And Operating Instructions Manual

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8. Technical data
8.1 Design / enclosure class
8.2 General data
8.3 Electronic data and functions
8.3.1 Electronics
8.3.2 Functions of the instrument amplifier
Wall-mounted
enclosure
(distance from
sensors up to three
metres)
IP65
Control panel
enclosure
including separate
potentiostat
IP54 (front) /
IP65 (sensor interface)
(distance from sensor
interface up to 100 metres,
distance from sensor
interface to sensors up to
three metres)
Input power Approximately 15 VA
Permissible
ambient
temperature 0 °C to +45 °C
Permissible
storage
temperature -20 °C to +65 °C
Maximum relative
humidity
90 % (non-condensing)
Weight 1.5 kg
Enclosure
Plastic (control panel
enclosure: noryl,
wall-mounted
enclosure: ABS)
Power supply
versions
• 230/240 V (50/60 Hz)
(standard model)
• 115/120 V (50/60 Hz)
• 24 VDC
Electronics 16-bit microprocessor
Display
High-resolution graphics LCD
with background light
Potential-free relay
outputs
1 alarm relay, 2 controller
relays (250 V / 6 A, maximum
550 VA)
Signal inputs Controller stop; water sensor
Signal outputs
4 analog outputs 0/4 to 20 mA,
freely adjustable, maximum
load 500
Ω
Freely adjustable
analog outputs for
measured values
• Parameter group 1:
chlorine, chlorine dioxide,
ozone or peroxide
• Parameter group 2: pH
• For temperature or
continuous control (0/4 to
20 mA) of the parameters
from group 2 (pH)
• For continuous control (0/4
to 20 mA) of the
parameters from group 1
(chlorine, chlorine dioxide,
ozone or peroxide)
Display mode
Measured-value display:
measured value with its unit,
temperature display:
in °C or °F
Temperature
compensation Manual or automatic with
Pt100
Calibration
Manual, or with automatic
recognition of buffer solution