Technical Data Smartec S CLD134
76 Endress+Hauser
10 Technical Data
10.1 Input
10.2 Output
Measured variables Conductivity
Concentration
Temperature
Measuring range Conductivity: recommended range:
100 μS/cm ... 2000 mS/cm
(uncompensated)
Concentration
–NaOH:
–HNO
3
:
–H
2
SO
4
:
–H
3
PO
4
:
0 ... 15 %
0 ... 25 %
0 ... 30 %
0 ... 15 %
Temperature: –35 ... +250 °C / -31 ... +482 °F
Cable specification max. cable length 55 m / 180.46 ft with CLK5 cable (separate version)
Binary inputs 1 and 2 Voltage: 10 ... 50 V DC
Current consumption: max. 10 mA at 50 V
Output signal Conductivity, concentration:
Temperature (optional second current
output)
0 / 4 to 20 mA, galvanically isolated
Minimum distance for
0 / 4 ... 20 mA output signal
Conductivity measurement:
– Measured value 0 to 19.99 μS/cm:
– Measured value 20 to 199.9 μS/cm:
– Measured value 200 to 1999 μS/cm:
– Measured value 0 to 19.99 mS/cm:
– Measured value 20 to 200 mS/cm:
– Measured value 200 to 2000 mS/cm:
2 μS/cm
20 μS/cm
200 μS/cm
2mS/cm
20 mS/cm
200 mS/cm
Concentration measurement: no minimum distance
Signal on alarm 2.4 mA or 22 mA error current
Load max. 500
Ω
Output range Conductivity:
Temperature:
adjustable
adjustable
Signal resolution max. 700 digits/mA
Separation voltage max. 350 V
RMS
/ 500 V DC
Overvoltage protection acc. to EN 61000-4-5:1995
Auxiliary voltage output Output voltage: 15 V ± 0.6 V
Output current: max. 10 mA
Contact outputs Switching current with ohmic load
(cos
ϕ =1):
max. 2 A
Switching current with inductive load
(cos
ϕ =0.4):
max. 2 A
Switching voltage: max. 250 V AC, 30 V DC
Switching power with ohmic load
(cos
ϕ =1):
max. 500 VA AC, 60 W DC
Switching power with inductive load
(cos
ϕ =0.4):
max. 500 VA AC
Limit contactor Pickup / dropout delay: 0 to 2000 s
Alarm Function (switchable): steady / fleeting contact
Alarm delay: 0 to 2000 s (min)
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