Two- Line pH / ORP Meter CP-300

Overview

The CP-300 is the newest addition to our lineup of pH / ORP meters offering excellent stability and temperature characteristics. The CP-300 is capable of accommodating a wide range of application fields from general wastewater monitoring to pH measurement of industrial processes.

Features

  • Can be used as both a pH and ORP meter
  • One-touch calibration simply by immersing the electrode in standard solution and pressing the CAL key
  • Automatic determination of validity of electrode characteristics
  • Compatible with five types of temperature compensation elements
  • Equipped with input filter function
  • New process electrode featuring enhanced performance
  • Can be combined with a washer
  • Employs a large, customized LCD
  • Simultaneous display of measured values and parameter settings

Manufactured by HORIBA Advanced Techno

Specifications

Model

CP-300

Measuring range

pH 0 - pH 14: Resolution of 0.01 pH
ORP ± 1400 mV: Resolution of 1 mV

Reproducibility

pH ± 0.05, ORP ± 5 mV

Transmission output

DC 4 - 20 mA, isolated input and output, max. load resistance: 500 W, linearity: 0.5 %

Transmission output ranges

pH: 0 - 14, 0 - 10, 0 - 8, 2 - 12, 3 - 11, 4 - 14, 4 - 10, 6 - 14
ORP: ± 1400 mV, ± 1000 mV, ± 700 mV, ± 350 mV, -1000 - 0 mV, 0 - 1000 mV, -700 - 0 mV, 0 - 700 mV (changeable with internal DIG switches)

Calibration function

2-point automatic calibration or manual calibration (changeable with internal DIP switches)
2-point automatic calibration: Automatic determination of standard solution type Automatic judgment of potential stability Types of standard solutions: pH 4, 7, 9 (JIS)
Combinations of standard solutions: pH 4 and 7, pH 7 and 9
Manual calibration: Types of standard solution
Discretionary: Difference of 2 pH or more

Additional functions

Various error messages

  1. Calibration error (asymmetrical potential, sensitivity / response rate error, standard solution error)
  2. Electrode check error: Shorted temperature sensor, disconnected temperature sensor
  3. Deviation from measuring range error: Over full scale, under full scale, continuous transmission output during calibration and hold during washing (1a non-voltage contact input), hold (previous value hold, arbitrary hold) (changeable with internal DIP switches)

Measured value shift function: pH: ± 2.00 pH, ORP: ± 200 mV
Input filter time constant switching function
Time constant: None / approx. 30 sec (changeable with internal DIP switches)
Burnout function: 4 mA / 20 mA (changeable with internal DIP switches)

Temperature compensation element:

500 W (25 °C)
Also compatible with other elements
consisting of 6.8 kW (25 °C), 350 W (25 °C), 1 kW (0 °C) and 10 kW (25 °C)

Temperature compensation range

0 - 100 °C (pH meter only)

Ambient temperature and humidity

-5 - 50 °C, 85 % RH or below

Power supply

DC 22.5 - 30 V

Construction

Outdoor installation type: JIS C0920, protection class: 3 (rain-proof type) Mounting method: 50 A pole or wall mounting
Case: Cast aluminum alloy (coating color: equivalent to DIC G-262)
Full cover: Polycarbonate (plastic color: equivalent to DIC G-262)
Hood: SUS304 (coating color: equivalent to DIC G-262 and DIC PART 2 2600) Mounting fixture: SUS304

External dimensions

222 (W) x 180 (H) x 155 (D) (excluding mounting fixture and projections)

Weight

Approx. 4 kg

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