Panel-mount type conductivity meter

Sanitary sensor lineup

A conductivity meter for measuring a wide range from production water up to 500 mS/cm and enabling advanced concentration control with abundant outputs. Offering a lineup that includes sanitary sensors which no uneven surfaces and are stain resistant. The use of a panel mount converter allows for cost reduction at the time of installation.

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.

Diverse lineup of sensors available

The sensor has a smooth structure without irregularities, providing resistance to dirt and less prone to contamination.  Durable even under high pressure and high temperature conditions, making it ideal for chemical management in food production lines after CIP/SIP (Clean-in-Place/Sterilize-in-Place) processes.  With two types of sensors: flow-through (inline) type, which is integrated into the pipeline, and insertion type, which is inserted into the pipe, various sizes and fittings to accommodate different requirements are available.

Possible to be used in a panel-mounted configuration.

This transducer is easy to install while providing standard functions.

Product nameConductivity meter
Measuring methodFour-electrode type
Cell constant0.1/cm
Temperature sensor
Resistance thermometer bulb 1000 Ω/0℃
Measuring rangeConductivity0 mS/cm to 200 mS/cm (measuring range of conductivity before temperature compensation: 0 mS/cm to 500 mS/cm)
Temperature0.0℃ to 100.0℃
HNO30% to 5.00%Preprogrammed in the instrument
NaOH0% to 5.00%
H3PO40% to 5.00%
Option 10% to 100.00%Conversion formula is defined by user (temperature compensation and concentration conversion)
Option 20% to 100.00%
Repeatability0.000 mS/cm to 2.000 mS/cmWithin ±0.5% full scaleUsing equivalent input for conductivity with 10 m cable
0.00 mS/cm to 20.00 mS/cmWithin ±0.5% full scale
0.0 mS/cm to 200.0 mS/cmWithin ±0.5% full scale
0 mS/cm to 500 mS/cmWithin ±1.0% full scale
0.0℃ to 100.0℃Within ±0.2℃
Linearity0.00 mS/cm to 20.00 mS/cmWithin ±0.5% full scaleUsing equivalent input for conductivity with 10 m cable
0.0 mS/cm to 200.0 mS/cmWithin ±1.0% full scale
0 mS/cm to 500 mS/cmWithin ±2.0% full scale
0.0℃ to 100.0℃Within ±0.5℃
Display and output
Conductivity0 mS/cm to 2000 mS/cm
Temperature−30℃ to 160℃
Concentration0% to 5%: NaOH, HNO3, H3PO4
0% to 100%: Concentration of the component in the optional conversion formula set by user
Transmission outputNumber of output points: 4
4 mA to 20 mA DC: input/output isolated type
Maximum load resistance: 900 Ω
Transmission output range: Freely selectable within the measurement range
(Negative terminals of each transmission output channel are connected inside and thus have the same electric potential.)
For Cur4, the transmission output can be changed by external input.
Contact outputNumber of outputs points: 5
Alarm contact output (R1 to R4)
 Contact type: Relay contact, SPST (1a)
 Contact capacity: 240 V AC, 1 A and 30 V DC, 1 A (resistance load)
 Contact function: Selectable from the upper/lower limit action (ON/OFF control), delay, and hysteresis
 Contact action: closed during control operation (error setting), opened normally and while the power is down
 (However, R1 and R2, R3 share the COMMON contacts respectively.)
Anomaly alarm output (RF)
 Contact type: Relay contact, SPDT (1c)
 Capacity: 240 V AC, 1 A and 30 V DC, 1 A (resistance load)
 Contact function: Selectable from error, anomaly alarm, and maintenance.
 Contact action: When the C-NO contact is used, it is closed during the normal operation or opened when an error occurs (including the case where the power is turned OFF).
 (The C-NC contact acts inversely to the C-NO contact.)
 (However, R4 and RF share the COMMON contacts respectively.)
Contact inputNumber of input points: 2
 Contact status: Type-A contact with open collector being of no-voltage
 Contact functions: Transmission output range selection and external input for Hold
 (Select either “Transmission 4 range selected” or “Transmission 2 range selected + Hold”)
The RS-485 input/output
Calibration functionConductivity: Based on the specified compensation coefficient for the cell constant (parameter input)
Temperature: Calibrated by comparing with the reference thermometer
Transmission output
hold feature
Selectable from the Previous value hold and the Optional value hold (however, only the previous value hold is available in the maintenance mode.)
  • Sensor diagnosis (short-circuit and disconnection of the temperature sensor)
  • Converter error
  • Temperature characteristics of NaCl (reference temperature: 25℃)
  • Arbitrary temperature coefficient entry (reference temperature: 25℃, temperature coefficient: 0%/℃ to 5%/℃)
  • No temperature compensation is performed.
compensation range
0℃ to 100℃ (a temperature less than 0℃ and more than 100℃ is calculated as an extension of the range)
Ambient temperature−5℃ to 55℃
Relative humidity20% to 85% (without dew condensation)
Storage temperature−25℃ to 65℃
Power supplyRated voltage 100 V to 240 V AC, 50/60 Hz, 20 VA (max.)
StructureIndoor-use panel installation type
Panel case: ABS, Terminal: PBT, Panel: IP65 dust and water proof structure
Protective structurePanel: IP65 (IEC60529, JIS C0920), Rear case: IP20, Terminal:IP00
Class II device (IEC61010-1), Pollution level 2 (IEC61010-1)
Conforming standardsCE MarkingEMC Directive: EN61326-2-3
Low Voltage Directive: EN61010-1
FCC RuleFCC Part15
External dimensions96 (W) mm × 96 (H) mm × 115 (D) mm
Case depth: approx. 105 mm (when panel-mounted)
MassApprox. 550 g
Compatible sensorsSubmersible FES-2XX series sanitary four-electrode conductivity sensor
Flow-through FES-310 series sanitary four-electrode conductivity sensor

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