10
5 Instrument description
5.1 Technical data
Analog
input 1
Input resistance approx. 40
Ω
Deviation from characteristic:
≤
0.5% of the measurement range
0(4) — 20 mA.
Analog
input 2
Pt100 or Pt1000 resistance thermometer, in 2-wire or 3-wire circuit,
-50 to +250°C
Measurement display in °C or °F (option)
Deviation from characteristic:
≤
0.25% of measurement range.
Ambient temperature error:
≤
0.1% per 10 °C
Lead
compensation,
analog input 2
The lead resistance can be compensated in software by a correction of the
process value. This is not required if the resistance thermometer is connected
in a 3-wire circuit.
Alternatively, when a resistance thermometer is connected in a 2-wire circuit,
lead compensation can be provided by using an external compensation
resistor.
Logic
input 1
The following functions can be assigned as selected:
Key inhibit, setpoint switching, alarm stop, alarm time reset, hold, reverse
hold, freeze measurement, range expansion (x10), no function for logic input 1.
Logic
input 2
As for logic input 1.
Measurement
and control
range
Current
0(4) — 20 mA
pH value
-1.00 to 14.00 pH
Redox voltage
-1999 to +1999 mV
Conductivity
0 — 9999 mS/cm or
µ
S/cm
0 — 9.999 mS/cm or
µ
S/cm
0 — 99.99 mS/cm or
µ
S/cm
0 — 999.9 mS/cm or
µ
S/cm
Free chlorine, chlorine dioxide, ozone
-1999 to +9999 mg/l
-1.999 to +9.999 mg/l
-19.99 to +99.99 mg/l
-199.9 to +999.9 mg/l
Universal display
-1999 to +9999 digit
-1.999 to +9.999 digit
-19.99 to +99.99 digit
-199.9 to +999.9 digit
