AD18-1000 pH/ORP is a kind of precise instruments used for test and control pH/ORP. It could store, calculate and compensate all the parameters related to testing pH/ORP value, such as the temperature characteristic of pH electrode, the slope deviation of pH/ORP electrode, etc. It has the merits of complete functions, stable performance and simple operation, which makes it as the choice for the enterprises to test and control pH/ORP.

AD18-1000 pH/ORP serial instruments are equipped with LCD display with back light, the error display, automatic temperature compensation function, colon standardizing function, separated 4-20mA current output, the double-group relay control, high-&-low-point warning display and signal output control, automatic setting of retardation and power-down memory, which makes the backup cell unnecessary, and the information in the instruments kept for over 10 years.

AD18-1000 pH/ORP serial instruments could be equipped with various kinds of pH electrodes (especially those with HF media and stibium mode).

Technical Data

Measuring Range: PH 0.00-14.00 pH   ORP -1999~+1500mV

Distinguishability: 0.01pH  1mV     Level: 0.05/

Stability: ≤0.03pH/24h   ≤2mV/24h

Adjustable Range for Correction: zero point ±1.45pH

                              Slope Coefficient: 80% ~100%

PH Titer: 6.86/4.01/9.18   4.00/7.00/10.01

Control Range: 0-14.00pH     -1999~+1500mV

Temperature Compensation: 0- 99.9    Signal Output: 4--20mA

Control Interface: ON/OFF tip

Relay Load: 220V AC/12VDC  2A

                  125AC/VDC

Signal Output Load: ≤500Ω    Signal Input Impedance: ≥1×10¹²Ω

Operating Voltage:AC  220±22V    50Hz 

Dimension: 96×96×115 mm    Tapping Dimension: 92×92mm

Weight: 0.8Kg   

Working Conditions:

1.Ambient Temperature: 0 ~ 40

2.Relative Humid in the Air: ≤90%

3.No strong magnetic field interference except the earths magnetic field