K9142TH | Yokogawa Liquid Junction Assembly

Product Description

Configured for controlled electrolyte-to-process contact in refillable pH and ORP electrodes, the Yokogawa K9142TH (K9142TH Liquid Junction Assembly) provides the physical and electrochemical junction between the reference electrolyte and sample medium.

Hardware Specifications

Reference Junction and Electrochemical Interface

The K9142TH forms the replaceable junction between the internal reference electrolyte and the measured sample. Its PTFE construction provides a chemically resistant contact surface for the reference junction assembly.

The junction controls ionic contact between the reference system and process medium. Therefore, its physical condition directly affects reference potential stability and measurement continuity. The supplied data specifies compatibility with Yokogawa refillable sensors such as the PH8ERP and OR8ERG.

Because the K9142TH functions as a field-serviceable junction component, technicians can replace the junction without replacing the complete electrode assembly when the junction requires service.

Frequently Asked Questions

Q: Which Yokogawa sensors are specified as compatible with the K9142TH?
A: The supplied data identifies refillable pH and ORP sensors, including the PH8ERP and OR8ERG, using double-junction reference systems.

Q: What material does the K9142TH use?
A: The specified junction material is fluororesin (PTFE).

Q: Does the K9142TH require electrical power?
A: No. The K9142TH is a passive liquid junction assembly and has no specified electrical power requirement.

Field Installation Guidelines

Inspect the replacement junction and electrode interface before installation. Remove process residue from the mating area without damaging the junction surface or electrode body.

Install the K9142TH according to the applicable Yokogawa electrode assembly procedure. Ensure that the junction seats correctly and maintains continuous contact with the reference electrolyte path.

Before returning the sensor to service, verify that the reference electrolyte path remains unobstructed. Check the electrode for leakage, contamination, mechanical damage, or improper seating.

Keep the junction surface clean during installation. Avoid introducing foreign material into the reference electrolyte path. After installation, perform the applicable pH or ORP calibration procedure and verify stable measurement response before process operation.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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