HP-200

Field-installation type pH meter

HORIBA's long-selling water quality meter that excels in both indoor and outdoor applications.

Suitable for pH monitoring and control in various production processes, as well as wastewater treatment and other applications. We offer a wide range of electrodes and cleaning devices to accommodate a variety of samples.

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

Lineup of a wide range of electrodes

A wide variety of electrodes are offered to cater to different needs.

Comprehensive range of cleaning devices.

A diverse lineup of cleaning devices are offered.  Particularly, ultrasonic cleaners are advantageous as they do not require water or air, making them convenient for retrofitting existing HP-200 installations on site. The drop-in type of cleaning device, which fits into a holder, offers ease of maintenance.

Product name pH meter
Model HP-200
Combined
sensor
Glass electrode
Measurable range pH pH0 to pH14 (display range: pH−1 to pH15)
Temperature 0℃ to 100℃
  • Display range : −10℃ to 110℃(the sensor types are detected automatically)
  • Display range : −20℃ to 130℃(the sensor types are input by manually)
Display
resolution capability
pH 0.01 pH
Temperature 0.1℃
Efficiency pH Repeatability Within ±0.03 pH (response for equivalent input)
Linearity Within ±0.03 pH (response for equivalent input)
Temperature Repeatability ±0.3℃ (response for equivalent input)
Linearity ±0.3℃ (response for equivalent input)
Transmission
output
Number of outputs 2 (the negative terminals for transmission outputs are internally connected and at the same electric potential)
Output type 4 mA to 20 mA DC: input/output isolated type
Load resistance Max: 900Ω
Linearity Within ±0.08 mA (output only)
Repeatability Within ±0.02 mA (output only)
Output range Output 1 pH: Selection from preset ranges or free range input within measuring range.
Output 2 Temperature: Free setting within a range between −20℃ and 130℃
Occasional out for error Hold or burnout to either 3.8 mA or 21 mA
Transmission hold In 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 output Number of output 5
Output type No-voltage contact output
Contact type Relay contact; SPDT (1c)
Contact capacity 250 V AC, 3 A; 30 V DC, 3 A (resistance load)
Contact
function
R1, R2 Selectable from upper limit alarm, lower limit alarm, ON/OFF control, and time-sharing proportional control.
R3, R4 Selectable from upper limit alarm, lower limit alarm, ON/OFF control, currently holding of transmission output, and cleaning output.
FAIL Error alarm
Alarm setting range
  • Setting range: 0.00 pH to 14.00 pH
  • Delay time: 0 seconds to 600 seconds
Control function ON/OFF
  • Setting range: 0.00 pH to 14.00 pH
  • Control width: 0.02 pH to 4.00 pH (−0.01 pH to 2.00 pH)
Control
function
Time-sharing
proportional
control
  • Setting range: 0.00 pH to 14.00 pH
  • Proportional band: 0.02 pH to 4.00 pH
  • Period: 5 seconds to 300 seconds
  • Control duty ratio shift function: 50% to 100% at the alarm setting point.
  • Variable off time extension in the F-zone: When the deviation enters a certain range (Fine-zone), the off time of the duty is automatically extended accordingly.
    This function is disabled when the duty ratio shift function is enabled.
  • F-zone: 1% to 100% of proportional band (when the deviation enters the above range, the automatic off time extension is enabled.)
  • Max. off time extension: 0 second to 300 seconds
  • Max. duty setting: 50% to 100% (regardless of the proportional band)
Cleaning output Number of outputs 1
Output type AC power control output (applied power supply voltage)
Contact type Relay contact, SPST (1a)
Contact capacity 250 V AC 0.5 A
Contact function Solenoid valve for cleaning control
Settings Cleaning period 0.1 hours to 168.0 hours
Cleaning time 2 seconds to 600 seconds
Hold time 2 seconds to 600 seconds
Timer accuracy Within 2 minutes per month
Description of cleaning
operation

One of the following operations.
Operation of internal timer only
Operation of internal timer and external input command
Enable the internal timer only when external input is active.
The cleaning trigger signal (the external trigger signal must be longer than 2 seconds).

Contact input Number of inputs 1
Contact type No-voltage "a" contact for open collector
Conditions ON resistance: 100 Ω max.
Open voltage: 24 V DC
Short-circuit voltage: 12 mA DC max.
Contact function External input for cleaning or transmission holding if cleaner is not attached.
Communication
capability
Communication method RS-485
Signal type 2 wire system, isolated from the input circuit
Not isolated from transmission circuit
Temperature
compensation
Applicable temperature
element
Platinum resistor: 1 kΩ (0℃)
Normal characteristic temperature-sensitive resistor: 500 kΩ (25℃), 6.8 kΩ (25℃),10 kΩ (25℃)
Element selection method Automatic temperature sensor type detection or manual selection (no temperature element is selectable)
Temperature compensation
range
0℃ to 100℃
Temperature calibration 1 point calibration comparing reference thermometer
Calibration Calibration method Auto or basic (manual) calibration
Number of calibration points Selectable from 1, 2, and 3 points
Kinds of standard solutions pH 2, 4, 7, 9, and 10
Any pH standard solution (with difference of 2 pH or more) for basic calibration
Additional capabilities Automatic detection of kind of standard solution
Automatic detection of electric potential stability
Automatic detection of calibration failure (asymmetry potential, sensitivity, or response time)
Calibration history (asymmetry potential, sensitivity, and number of days elapsed after last calibration)
Self-check Calibration error Asymmetry potential error, sensitivity error, and response time error
Temperature calibration error
Standard solution detection error
Electrode diagnostic error Cracking of glass response membrane
Reference electrode impedance error (only applicable for differential circuit mode with a liquid ground electrode)
Temperature sensor short-circuit, temperature sensor disconnection, and deviation from temperature measurement range
Meter error CPU error, ADC error, and memory error
Operating temperature range −20℃ to 55℃ (without freeze)
Operating humidity range Relative humidity: 5% to 90% (without condensation)
Storage temperature −25℃ to 65℃
Power supply Rated power supply voltage 100 V to 240 V AC ±10% 50/60 Hz
Power consumption 15 VA (max)
Others With power switch for maintenance use
Compatible
standards
CE marking EMC    :EN61326-1
     Class A, Industrial electromagnetic environment
Safety   :EN61010-1
RoHS   :EN50581
      9. Industrial monitoring and control instruments
FCC rules Part15 Class A
Structure Installation Outdoor installation type
Installation method Mount on 50 A pole or wall
Protection code IP65 IEC60529, JIS C0920
Case material Aluminum alloy (coated with epoxy-denatured melamine resin)
Material of fittings SUS304
Material of hood SUS304 stainless steel (coated with epoxy-denatured melamine resin)
Material of window Polycarbonate
Display element Reflective monochrome LCD
External dimensions 180 (W) mm × 155 (H) mm × 115 (D) mm (excluding the fittings)
Mass Main body: Approx. 3.5 kg
Cover and fittings: Approx. 1 kg
  • *1  :The standard for effect on the reading by the electromagnetic field of the radiated radio frequency and by the conducted interference is within the measured pH value ±0.25pH.
  • *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

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.

Informationsanfrage

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