23
Technical data and measuring ranges
23.1
Technical data
Tab. 32: Technical data
Designation
pH resolution:
ORP voltage:
Temperature:
Amperometric analysis (chlorine etc.):
Precision:
pH/ORP measuring input:
Correction variable:
Temperature correction range:
pH correction range for chlorine:
Interference variable:
Control characteristic:
Control:
mA output signal:
Control output:
20 V output (XA3)
Alarm relay:
Limit value relay:
Electrical connection without internal pro‐
tective RC circuit (module D):
Electrical connection with internal protec‐
tive RC circuit (module D):
Overvoltage category:
Degree of pollution (IEC 61010-1):
Technical data and measuring ranges
Technical data
0.01
1 mV
0.1 °C
0.001/0.01 ppm, 0.01 vol.%, 0.1 vol.%
0.3% based on the measuring range end value
Input resistance > 0.5 x 1012 Ω
Temperature via Pt 100/Pt 1000
0 ... 100 °C
6.5 ... 8.5
Flow via mA or frequency
P/PID control
2 bidirectional controllers or 1 bidirectional controller and 1
monodirectional controller
2 x 0/4 ... 20 mA electrically isolated, max. load 450 Ω, range
and assignment (measured, correction, control variable) can
be set
2 x 2 pulse frequency outputs for the control of metering
pumps
2 relays (limit value, 3-point step or pulse length control)
2 x 0/4 ... 20 mA
Output voltage approx. 20 V, max. 200 mA (power-restricted).
Terminal XA3 is not galvanically isolated from the mains ter‐
minal XP1 with the 24 V DC version. Only connect galvani‐
cally isolated devices to the 24 V supply. If a voltage of less
than approx. 22 V is fed at XP1, then the voltage at XA3 is
also lower.
250 V ~3 A, 750 VA, type of contact: changeover contact. No
inductive loads: use an additional protective RC circuit
(optional) with inductive loads.
Fusing (by others) of the output relay (XR1 ... XR3) with 5 A.
250 V ~3 A, 750 VA, type of contact: changeover contact. No
inductive loads: use an additional protective RC circuit
(optional) with inductive loads.
Fusing (by others) of the output relay (XR1 ... XR3) with 5 A.
100 ... 230 V ± 10%, 50/60 Hz, 27 W
24 V DC ± 20 %, 25 W
100 ... 230 V ± 10%, 50/60 Hz, 1200 W
II
Installation on a surface: 3
Control panel installation: 2
165
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