GNST-PH225 online sensor

NegotiableUpdate on 03/04

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The product principle of GNST-PH225 online sensor is to collect the potential difference and thermistor value between the reference sensor and the glass hydrogen ion indicator sensor, obtain the water temperature through the thermistor, and convert the potential to pH value according to the Nernst equation

Product Details

PH online sensor, corrosion-resistant housing, built-in NTC temperature sensor, can automatically compensate for the influence of temperature on measurement. The sensor uses RS485 interface and standard Modbus protocol.

Application field

GNST-PH225 online sensorWidely used in industries such as environmental surface water, municipal sewage, industrial wastewater, industrial process water, swimming pools, etc. and highly praised by users.

Product Principle

Collect the potential difference and thermistor value between the reference sensor and the glass hydrogen ion indicator sensor, obtain the water temperature through the thermistor, and convert the potential to pH value according to the Nernst equation

GNST-PH225 online sensorProduct Features

(1) Industrial grade composite pH sensor, suitable for harsh working environments

(2) NTC temperature sensor with measurement accuracy up to ± 0.1 ℃

(3) Corrosion resistant casing, waterproof rating IP68, capable of long-term underwater operation

(4) RS485 communication interface, standard Modbus protocol, easy to integrate

Technical parameters

model	GNST-PH225
working principle	Glass electric method
measurement range	pH (0~14) ； Temperature: (0~50) ℃
repetitiveness	<0. 1pH
Drift (24 hours)	<0. 1pH
resolution	0. 01pH
response time	<10s
Protection level	IP68
communication interface	RS485， Standard Modbus protocol baud rate 9600 Address bits Factory default 50
Dimensions	（φ33*224）mm， Cable 10 meters (customizable)
material	316L stainless steel/PVC/titanium alloy optional
weight	0.5kg
install thread	Upper end NPT3/4 thread, lower end can be equipped with NPT3/4 external thread
Working Voltage	(9~36)V DC
energy consumption	0.2 W
MTBF	≥ 1440h/time
Calibration cycle	3-6 months
working environment	(0~50)C