Yokogawa FU20-10-T1-NPT pH/ORP Combination Sensor – Product Description

Overview

The Yokogawa FU20-10-T1-NPT is a versatile pH/ORP combination sensor designed for precise industrial process monitoring. It measures pH, oxidation-reduction potential (ORP), and temperature within a single robust sensor body. Moreover, its NPT threaded connection allows easy installation in both immersion and flow-through assemblies, ensuring flexibility across diverse applications.

Technical Specifications

Measurement Capabilities

• pH Range: 0–14 pH

• ORP Range: −2000 mV to +2000 mV

• Temperature Range: −10 °C to +100 °C

• Temperature Sensor: Integrated Pt1000 RTD

• Accuracy: ±0.1 pH, ±1 mV ORP (typical)

Construction & Materials

• Body Material: PPS (Polyphenylene Sulfide), chemical resistant

• Reference System: Double junction with gel electrolyte

• Diaphragm: Porous ceramic for stable reference flow

• Electrode Type: Combination glass electrode (pH), platinum electrode (ORP)

• Connector: 1-inch NPT threaded for immersion or in-line mounting

Performance & Reliability

• Response Time: < 30 seconds for 95% of step change

• Pressure Rating: Up to 6 bar (87 psi) at 25 °C

• Temperature Compensation: Automatic via integrated Pt1000

• Maintenance: Easy calibration and replacement

Mechanical & Installation

• Dimensions (L × D):120 mm × 26 mm

• Weight: 0.25 kg

• Mounting: 1-inch NPT threaded

• Cable Connection: Integral cable or detachable connector

Environmental & Compliance

• Operating Temperature: −10 °C to +100 °C

• Storage Temperature: −20 °C to +70 °C

• Certifications: CE, RoHS compliant

• Origin: Manufactured in Japan

FAQ

Q1: What does the FU20-10-T1-NPT measure?
It measures pH, oxidation-reduction potential (ORP), and temperature simultaneously.

Q2: What is the operating temperature range?
The sensor operates reliably between −10 °C to +100 °C.

Q3: Which analyzers are compatible with this sensor?
Compatible with Yokogawa PH450G, PH202, and most standard pH/ORP analyzers.

Q4: How is the sensor mounted?
It uses a 1-inch NPT threaded connection for immersion or flow-through installation.

Q5: What is the typical response time?
The sensor responds to 95% of step changes in under 30 seconds.