Online Dual Channel ORP/pH Controller for Water Treatment System

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: APX2-PD
• Power Supply: AC: 100~240V 50/60Hz DC: 18~36V
• Protection Grade: IP66
• Resolution: pH: 0.01pH ORP: 1mv
• Enclosure Material: Enhanced ABS
• Language: English
• Current Output: Two 0/4~20mA Current Max. Load 1000Ω
• Transport Package: Packing
• Specification: 144*144*120 mm (hole size 138*138 mm)
• Trademark: Daruifuno
• Origin: China
• HS Code: 9026809000
• Production Capacity: 5000pieces/Year

Product Description

 

Dual Channel PH/ORP Controller

APX2-PD

Features

Connected to 2 pH or 2 ORP sensors, or 1 pH and 1 ORP sensor;

Two Channels are isolated from each other

Each channel can be connected to an independent temp. system.

When pH, ORP and temp. are tested at the same time, algorithm inside

the meter can simultaneously evaluate the disinfection ability and

display pH, ORP, temp. and chlorine values.

Meet pH/ORP monitoring, dosing control, and data signal remote

transmission at the same time.

Application: swimming pools, water parks, water treatment and dosing,

ultra-filtration, circulating water, and other occasions.

Model		APX2-PD-A	APX2-PD-D
Measuring Objects		2 measurement channel inputs, pH or ORP can be selected arbitrarily
Principle	PH	Glass pH electrode (hydrogen ion concentration index)
	ORP	Platinum or gold electrodes (redox potential)
Display Range		PH: 0~14pH  ORP: ± 2000mV   Temp: -10~150ºC
Resolution		PH: 0.01pH    ORP: 1mV    TEMP: 0.1ºC
Accuracy		0.1% of the measuring range or ±0.02pH / ±2mV, take the larger one
Stability		0.05% of measuring range every 24 hours without accumulation
Repeatability		Better than 0.1% of measuring range
Temp. Compensation		Automatic or manual (NTC10K/PT1000)
Relay Output		Two SPST relays, Max. load 3A/250VAC, set high/low alarm, temp. or clean control
Digital Communication		A two-wire RS485 interface, Modbus RTU and JSON
Current Output		Two 0/4~20mA current  Max. load 1000Ω
Time Display		Year/month/date  hour/minute/second
Historical Data		Record 10000 historical data and the last 100 calibration maintenance data
Valuation Object*		Built-in matrix (equivalent to residual chlorine)  0~2.5mg/L
		Support user-defined (20x20 matrix)
		Linear correspondence (water sample stability)
Display		128*64 3.2-inch graphic dot matrix LCD
Calibration Method		PH: 3 points  ORP: 2 points, calibration points can be set freely
Material		Enhanced ABS   Protection Grade: IP66
Power Supply		AC: 100~240V 50/60Hz	DC: 18~36V
Dimension		144*144*120mm (Hole size 138*138mm)
Work Temperature		0~60ºC, RH<95%, non-condensing
Storage Temperature		-20~70ºC, RH<55%, non-condensing
Installation		Wall mounting, pipe clamp, panel