391230 LF 298 NTC
用于直接连接模拟电导率测量单元的监测器，具有2个模拟和继电器输出、Modbus、115V/230V和NTC
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Analog controller to measure conductivity
User-friendly, analog field monitor - suitable for numerous conductivity measuring cells due to different measuring ranges and cell constants:
•For versatile applications with 7 selectabel measuring ranges
•connection of different measuring cells possible
•User-friendly operation thanks to clear menu structure
The LF 298 is an economical and metrologically flexible solution for use in the field. Galvanically isolated outputs are just as much standard as a complete function monitoring of the monitor and the connected sensor.Model
pH 298
Oxi 298
LF 298
Cl 298
Order No.
191230, 191232, 191234
291230, 291234
391230, 391234
801254
*) Please note: The permitted operating voltage of the sensor can vary considerably
Parameter
pH/ORP
Oxygen
Conductivity
Chlorine, elektrochemical
Measuring Range
-2 … 16 pH
-2000 … +2000 mV0 … 20 mg/l
0 … 200 %0 … 500 mS/cm, different measuring ranges adjustabel
0 … 2 mg/l
Temperature Measurement *)
-10 … 130 °C
NTC or Pt1000
or Pt100-10 … 130 °C
NTC or Pt1000-10 … 130 °C
Pt1000Temperature Compensation
Automatically via temperature measurement in the sensor or via manual input
Relays
2 x switching contacts, change-over, max. 250 VAC / 5 A
Current Outputs
2 x 0(4) … 20 mA
Digital Interface
Modbus / RS485
USB (for configuration, calibration, data recording)
Display
OLED (128 x 64 pixel) with plain text menue
Data Logger
Integrated with real time clock for 4000 datasets, storable via USB, grafical display
Electric Supply
100 … 240 V AC or 18 … 36 V DC
Ambient Conditions
Operational temperature: -10 … 55 °C
Housing Material
Cast Aluminium for wall mounting
Protection Rating
IP 65
Weight
2 kg
Warranty
2 years
