HE-200R

Field-installation Type Electric Resistivity Meter (Four-Wire Transmission)

HE-200R connects resistivity sensor (ERF Series) and measures resistivity and temperature in the sample water. It is suitable for measurement of UPW resistivity.

Measurement range

Resistivity: 0.00 - 20.00 MΩ・cm, 0.00 - 200.0 kΩ・m
Temperature: 0.00 - 100.00 ℃

Division: Process Water
Produktionsfirma: HORIBA Advanced Techno Co., Ltd.

Tough

  • Responds to harsh conditions at the site process   
    Operating temperature range(Transmitter):-20 - 55℃   
    Rated power supply voltage:AC 100 - 240 V ±10% 50/60 Hz   
    Robust aluminum die cast (Protection code:IP65)
  • CE Marking and FCC Compliance suitable for use at overseas sites

 

Intelligence

  • Convenient function to display liquid temperature at the same time(Transmission output available)
  • Designed to be environmentally friendly (Pb-free) in response to WEEE and RoHS
  • Well-examined temperature compensation function for UPW

 

Easy maintenance

  • Easy to view big display
  • Easy operation
  • Calibration log memory
  • Screw terminals that do not fall off are used in the terminal block for wiring
Product nameResistivity meter
ModelHE-200R
Combined
sensor
2-electrode method resistivity sensor (ERF-001 Series) of cell constant 0.01/cm
Measuring rangeResistivityMΩ•cm0.000 to 2.0000.00 to 20.00 (*Note 1)
kΩ•cm0.00 to 20.000.0 to 200.0 (*Note 1)
Temperature0℃ to 100℃ (Display range: −10℃ to 110℃)
Display
resolution
ResistivityAs shown in the measuring table.
Temperature0.01℃
PerformanceResistivityRepeatabilityWithin ±0.1% of the full scale (response for equivalent input)
LinearityWithin ±0.5% of the full scale (response for equivalent input)
TemperatureRepeatability±0.1℃ (response for equivalent input)
Linearity±0.5℃ (response for equivalent input)
Transmission
output
Number of output2 (The negative terminals for transmission outputs are internally connected at the same electric potential)
Output type4 mA to 20 mA DC: input/output isolated type
Load resistanceMaximum: 900Ω
LinearityWithin ±0.08 mA (output only)
RepeatabilityWithin ±0.02 mA (output only)
Output rangeOutput 1Resistivity: Free setting within a measuring range.
Output 2Temperature: Free setting within a range between −20 and 130℃
Occasional out for errorHold or burnout to either 3.8 mA or 21 mA
Transmission holdIn the maintenance mode, transmission signal is held at the latest value or preset value.
In the calibration mode, transmission signal can be alive or held.
Contact outputNumber of output3
Output typeNo-voltage contact output
Contact typeRelay contact; SPDT (1c)
Contact capacity250 V AC, 3 A; 30 V DC, 3 A (resistance load)
Contact
function
R1, R2Selectable from upper limit alarm, lower limit alarm, and currently holding of transmission output.
(The contact is closed during alarm operation, opened normally and while the power is down.)
FAILError alarm
(Closed in the normal state, opened in the failure state or while the power is down.)
Alarm setting range 
  • Setting range: within a measuring range
  • Delay time: 0 to 600 seconds
 
Contact inputNumber of input points1
Contact typeNo-voltage "a" contact for open collector
ConditionsON resistance: 100 Ω max.
Open voltage: 24 V DC
Short-circuit current: 12 mA DC max.
Contact functionExternal input for transmission holding.
Transmission
capability
MethodRS-485
Signal type2 wire system, isolated from the input circuit
Not isolated from transmission circuit
Temperature
compensation
Applicable temperature
element
Platinum resistor: 1 kΩ (0℃)
Compensation method 
  • Temperature characteristic of NaCl (reference temperature: 5℃ to 95℃)
  • Arbitrary temperature coefficient input (reference temperature: 5℃ to 95℃; temperature coefficient: +/−3%/℃)
  • No temperature compensation
    One of the three ways of compensation is selectable.
    (In the de-ionized water area, the temperature compensation for pure water is automatically performed in both NaCl and arbitrary temperature coefficient compensation settings.)
 
Temperature compensation
range
0℃ to 100℃ (However, the compensation calculation is extended lower than 0℃ or higher than 100℃.)
CalibrationResistivityBased on parameter input of coefficient for the sensor cell constant.
TemperatureComparison to the accurate thermometer
Both deviation and coefficient of RTD are taken into account for calibration.
Other functionUPW standard resistivity inputSelect one from the next.
182.3 kΩ•m (standard), 181.8 kΩ•m, 182.4 kΩ•m,
18.23 MΩ•cm (standard), 18.18 MΩ•cm, or 18.24 MΩ•cm
Clipping functionIf the measured value exceeds the user setting value for clipping, the measured data will be held at the clipping value.
Self-checkSensor diagnostic errorTemperature sensor short-circuit, temperature sensor disconnection, and out of the temperature measurement range
Converter errorCPU, ADC, and memory errors
Operating
temperature
range
−20℃ to 55℃ (without freeze)
Operating
humidity range
Relative humidity: 5% to 90% (without condensation)
Storage
temperature
−25℃ to 65℃
Power supplyRated power supply voltage100 V to 240 V AC ±10% 50/60 Hz
Power consumption15 VA (max)
OtherWith power switch for maintenance use
Compatible
standards
CE markingEMC    :EN61326-1
     Class A, Industrial electromagnetic environment
Safety   :EN61010-1
RoHS    :EN50581
      9. Industrial monitoring and control instruments
FCC rulesPart15 Class A
StructureInstallationOutdoor installation type
Installation methodMount on 50 A pole or wall
Protection codeIP65
Case materialAluminum alloy (coated with epoxy-denatured melamine resin)
Material of fittingsSUS304
Material of hoodSUS304 stainless steel (coated with epoxy denatured melamine resin)
Material of windowPolycarbonate
Display elementReflective monochrome LCD
External
dimensions
180 (W) mm × 155 (H) mm × 115 (D) mm (excluding cover and mounting brackets)
MassMain body: Approx. 3.5 kg; cover and mounting brackets: Approx. 1 kg

Note

  • Note 1  : Without temperature compensation, 0.0-100.0 MΩ•cm(0-1000 kΩ•m) can be displayed.
  • Note 2  : When the sensor cable, the transmission cable, or the contact input cable is extended by 30 m or more, the surge test under the EMC Directive for CE marking is not applied.
  • Note 3  : An arrester (spark over voltage: 400 V) is implemented for transmission output, contact input, and communication. However, use a most suitable surge absorption element on the connection lines in accordance with the ambient environment, the situation of equipment installed, and the externally connected equipment.

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