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NTC10K - 10～150℃ Online PH ORP Gauge With WIFI For Aquaculture Water
Treatment
Brief introduction
PH/ORP gauges not only fulfill the remote management technology WIFI but also has a temperature detection
and temperature compensation function, supporting pH electrodes with temperature to measure temperature changes in aqueous solutions. It is a patented temperature drift compensation technology,
which makes the instrument more stable and accurate in all kinds of environments.
The PH/ORP gauges use salt-bridged primary battery electrodes (PH electrodes) to detect changes in the
concentration of hydrogen ions in the solution, which affect the electrode level. It is usually made of glass and commonly known as PH glass electrode measurement. Mathematic defines pH as a
commonly used congenital negative value for the concentration of hydrogen ions, i.e. pH=-lg[H⁺]
Applications of Online PH ORP gauge
1 Water treatment monitoring: drinking water surface water quality groundwater environmental sewage
discharge monitoring urban drainage network monitoring
2 Industrial process monitoring and dosing control treatment: chemical petroleum paper food medicine
electroplating PCB manufacture
Technical Parameters of Online PH ORP gauge
Model
APX2-G4A
Software version
DRFN PH Analysis software V1.0
Sensor Input PH
Glass PH sensor.
Sensor Input ORP
Redox sensor (platinum / gold sensor)
Sensor Input TEMP
PT1000 or NTC10K
Sensor Input
Ground Electrode
Combination electrode with ground rod
Range / Resolution PH
-2～16pH / 0.01pH
Range / Resolution ORP
±2000mV / 1mV
Range Resolution
Measure Temperature
-10～150℃ / 0.1℃(14~302℉ / 0.1℉)
Performance Accuracy
0.1% of span or PH: ±0.02pH /ORP: ±2mV, select larger one.
Performance Stability
0.05% of span every 24 hours, no accumulation.
Performance
Repeat-ability
Better than 0.1% of span
Electrode Self-diagnosis
The zero and slope of the electrodes are diagnosed during calibration and maintenance. If the
screen prompts maintenance or replacement, the buzzer prompts briefly.
Relay Control
2 SPST relays: the maximum load is 3A/250VAC.
OTA
Remote management technology WIFI (GSM, CDMA optional)
Analog Current Output
Two 0/4 ~ 20mA currents; accuracy 0.00025 (16 bits); Maximum load 1000 Ω.
Communication Mode
Two-wire RS485 interface, communication protocol: MODBUS RTU
Supports JSON (JavaScript Object Notation) text data formats.
Display Language
128 x 64 dots; English / Chinese / Other languages
Time History/
Data Record
Record in years, months, dates, hours, minutes and seconds,
Keep 14,000 historical measurements and last 100 maintenance data
Overall Dimensions
144*144*120mm Panel Hole dimension 138*138mm
Power
AC power supply 100～240VAC
Power Consumption
10W
