PH-100 > PH / ORP

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Product Introduction

Measurement for Water Treatment


  • Built-in process control program
  • On/Off control point of contact
  • Built-in data logger (60,000 point), history and graph trend display, etc. (Period can be arbitrarily set)
  • Setup Menu designed to adapt to special specifications the user requires
  • Backlight graphic LCD displays the measured value and temperature simultaneously (Multi-icon, Set Point, Hangul menu status message, current time, etc.)
  • Quick and simple auto calibration
  • Wide universal power supply ranges from 90 ~ 260 VAC
  • Protection levels for the converter: IP66, detector: IP68
  • DC 0/4-20mA or RS-485, RS-232C output for the measured value and temperature
  • Converter applicable for various electrodes
  • Available in a single/multi-nozzle spray cleaning and a continual inspection ultrasonic wave cleaning (wash individually or collectively)
  • Nonvolatile memory saves every parameter and new data even when the power is off
  • Built-in auto temperature compensation
  • Built-in overvoltage protection circuit
  • Built-in self-diagnosis function
  • Built-in self-cleaning function
  • Various furring methods


The product of PH-100 series is a measuring instrument which measures and controls a water treatment process. Some of its main functions include acid/alkali neutralization, filtering, precipitation, condensation, sterilization and more. At the same time, its auto compensation function reduces errors caused by the sample's temperature change.

The product of ORP-100 series is used for measuring and controlling equipment. For example, ORP-100 series are useful for numerous processes such as metal oxidation-deoxidation process, water treatment process, food process, chemical process and more. Also, its converter enables the instrument to be used with any kind of electrode.

PH-100/ORP-100 is designed to be user-friendly where users can easily communicate, control, inspect the instrument or save data, using our built-in self-diagnosis, output signal and alarm functions. Other built-in programs include a current output for controlling purposes, electrode cleaning period program, and especially the cleaning programs offering air/water spray cleaning and ultrasonic cleaning that are adopted for various cleaning conditions.


■ Option

Measuring Range pH : 0.00 ~ 14.00pH 
ORP : ±700,±1000,±2000,±5000mV 
Temperature : -40 ~ 100℃
Digital output RS485, RS232C
Resolution PH : 0.01pH, ORP : 1mV Control operation - Two(2) Relays 
   (set On/Off point) 
- Two(2) Temperature contact point (HEATER, FAN) 
- One(1) Cleaning contact point
Precision ±0.01pH, ±1mV
Reproducibility ±0.01pH, ±1mV Control operation capacity 5A 30VDC 
2A 250VAC
Calibration Auto correction
Calibration points 2points correction 
(Use standard liquid/pH:4.00,7.00,10.00/
Electrode cleaning ultrasonic wave (Continuance inspection), spray type(air/water)
Response time 98% in 30 Seconds at 25℃ Cleaning period 0~24 hours
Temperature compensation 0 ~ 60℃, 0 ~ 100℃ Cleaning time 0 ~ 10 mins (can be set arbitrarily), Output signal holding function
Ambient temperature -25 ~ 80℃ Power supply 90~260 VAC, 50/60Hz
Active type Glass compound electrode or 
antimony electrode
Power consumption Less than 30VA
Analog output Two(2) DC 0/4~20mA, Isolated
(Measured value& temperature, 
MAX load 1000Ω)
Case IP66
External dimension 144 x 144 X 137mm

Sepcifications (Electrode)

■ Option

Measuring Ranges PH U glass(pH 0~12, briefly pH14)
ORP ±700mV, ±1000mV,±2000mV, ±5000mV
Sensor connection - Plug Cap(S7)
- Plug cap with fixed cable
- Screw cap Pg13.5(S8)
- Screw cap Pg13.5 with fixed cable
Digital output RS485
Protection level IP68
Measuring Ranges 0~12ph 0~14ph 0~14ph 0~12ph 0~12ph 0~12ph 0~14ph
Temperature range -5~80℃ -5~80℃ 0~135℃ -5~80℃ -30~30℃ -5~50℃ 0~60℃
Electrode kind Non-supplement type (gell) kcl supplement type
pressure range 0 ~ 6 bar, 0 ~ 10 bar, 0 ~ 20 bar
Electrode kind Non-supplement type (gell) kcl supplement type
Electrode Type Ag / Agcl, Platinum tip
Temperature range 0 ~ 60℃, -10 ~ 130℃ 0 ~ 60℃
pressure range 0 ~ 6 bar, 0 ~ 10 bar, 0 ~ 20 bar

Sensor holder (PH/ORP)

Type Deposition, distribution, and floats Holder material PP, SUS304, SUS316, PVC, CPVC
Cleaning equipment material SUS304, SUS316, PP, Teflon, Acetal
Headquarters(Factory) : Gunwiqongdangil 97, Gunwi-gun, Gyeongsangbuk-doTel : +82-54-383-7181FAX : +82-54-383-7188
Institute of Technology : 42, Palgong-ro 45-gil, Dong-gu, Daegu, Republic of Korea (Esia Polis)Tel : +82-53-383-7181FAX : +82-53-383-7188