PH21 pH Sensor with Integral Pt1000 for Accurate Temperature and 0-14 pH Range in 0-60°C Environments

Price Negotiable

Price: Negotiable

MOQ: 1pcs

Delivery Time: 5-8 work days

Brand: Yokogawa

Product Description

Wide Body Sensor for Water and Wastewater PH21

At Yokogawa, we are committed to our responsibility of protecting the environment. The PH21 represents a significant step toward achieving a zero-emission future as the first pH sensor made from recycled PPS-GF40 materials without compromising sensor body integrity. Designed specifically for the drinking water market, the PH21 combines simplicity with accuracy to deliver reliable pH measurements, making it an excellent choice for 80% of water-based applications.

Features and Benefits

Available as analog and digital SMART sensors (SENCOM)
Integral Pt1000 element for accurate temperature measurements and enhanced pH accuracy
Quick disconnect Variopin connector
Simple maintenance through comprehensive design
Versatile installation options: Direct in-line, immersion, off-line (flow fitting), and retractable Hot-tap
Quick-Release adapter available
Calibration certificate included with each sensor

Measuring Elements

pH glass electrode

Silver Chloride reference

Pt1000 temp sensor

Wetted Parts

Component	Material
Sensor body	PPS
Measuring sensor	G-Glass
O-ring	Viton
Reference junction	PTFE

Functional Specifications (at 25°C)

Parameter	Specification
Isothermal point	pH7
Reference system	Ag/AgCl
Glass impedance	100-3000 MΩ
Junction resistance	< 1 KΩ
Temperature element	Pt1000 IEC 751
Asymmetry potential	< 5 mV
Linearity pH Slope	≥96% in pH 2 - 12

Dynamic Specifications (at 25°C)

Parameter	Specification
Response time pH step 7 to 4	15 sec for 90%
Response time temp step, 10°C	180 sec
Stabilization time (0.02 pH unit 10 s)	< 2 minutes

Operating Range

Parameter	Range
pH	0 - 14 pH
Temperature	0°C... +60°C (32°F... 140°F)
Pressure (at 25°C)	0 to 5 Bar (0 to 72 PSIG)
Pressure (at 70°C)	0 to 5 Bar (0 to 72 PSIG)
Conductivity	> 50 µS/cm