pH Composite Electrode (Low Conductivity) for Ultrapure Water · S7 Connector · 0–11 pH
pH Electrode for Ultrapure Water (Low Conductivity) 0–11 pH
OVERVIEW
This pH composite electrode for ultrapure water (low conductivity) is specifically designed for accurate pH measurement in deionized, distilled, and other high-purity water samples where conventional electrodes struggle due to low ionic strength. It combines the pH indicator electrode and reference electrode into one practical body with a Longlife Reference system and porous PTFE junction for stable performance in low-conductivity media.
With a pH range of 0–11, epoxy body, and S7 connector, this electrode is optimized for laboratory applications requiring reliable pH monitoring in ultrapure water, such as pharmaceutical, semiconductor, and research facilities.
Specialized pH electrode for ultrapure water and low-conductivity samples featuring Longlife Reference system, porous PTFE junction, and epoxy body. pH range 0–11, 0–80 °C, and S7 connector for compatible meters.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical insights for pH measurement in ultrapure water
Explore technical articles on measuring pH in low-conductivity samples, electrode selection for pure water applications, and best practices for reliable results in pharmaceutical and semiconductor laboratories.
Product Overview
This pH composite electrode for low-conductivity samples is engineered for accurate pH determination in ultrapure water, where conventional electrodes suffer from unstable readings and slow response. The Longlife Reference system and porous PTFE junction ensure stable liquid junction potential even in deionized water, while the epoxy body provides durability. The S7 connector requires an S7-BNC(Q9) cable for compatibility with standard pH meters.
Compatibility notice — connector and meter matching are essential
The connector must be compatible with the meter you are using. General connector options mentioned for this electrode family include S7 [S7-BNC(Q9) cable] and BNC(Q9). This model has an S7 connector and requires an S7-BNC(Q9) cable for use with meters having BNC input. Please confirm compatibility with your meter before ordering.
Key Features
Low Conductivity Design
pH Range 0–11
Longlife Reference System
Porous PTFE Junction
Epoxy Body
0–80 °C Working Temp
Unfillable
S7 Connector
Electrode
Optimized for ultrapure water and low-conductivity samples
Longlife Reference System
Specially designed reference system provides stable potential in low-ionic-strength samples, minimizing drift and improving accuracy in ultrapure water.
Porous PTFE Junction
High-performance junction material ensures consistent electrolyte flow and prevents clogging, essential for reliable measurements in pure water.
Epoxy Construction
Robust epoxy body withstands routine laboratory use and is compatible with a wide range of sample types.
Electrode Structure
- pH composite electrode for low conductivity
- Combines pH indicator electrode and reference electrode
- No separate reference electrode needed
- Optimized geometry for ultrapure water applications
Materials & Reference System
- Sensor material: Epoxy
- Reference type: Longlife Reference
- Junction material: Porous PTFE
- Fill solution: unfillable
Operating Conditions & Connection
- pH range: 0–11
- Working temperature: 0–80 °C
- Dimensions: Φ12×120 mm
- Connector type: S7 (requires S7-BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (Low conductivity) |
| pH Range | 0–11 | Fill Solution | unfillable |
| Sensor material | Epoxy | Working Temp. | 0–80 °C |
| Junction material | Porous PTFE | Reference Type | Longlife Ref. |
| Dimension | Φ12×120 mm | Connector Type | S7 |
Note: Please verify connector and meter compatibility before purchase. This electrode has an S7 connector and requires an S7-BNC(Q9) cable for use with meters having BNC input. Exact supplied configuration may vary depending on quotation and application.
General Electrode Notes
- pH electrodes are available as pH indicator electrode, composite electrode, and 3 in 1 pH composite electrode (with temperature probe).
- A pH indicator electrode needs to cooperate with a separate reference electrode.
- A composite electrode combines the pH indicator electrode and reference electrode.
- A 3 in 1 pH composite electrode combines the pH indicator electrode, reference electrode, and temperature probe.
- Temperature probes can adjust pH measurements by correcting the electrode slope according to the measured temperature.
- The connector must be compatible with the meter you are using. Options include S7 [S7-BNC(Q9) cable] and BNC(Q9).
Connector Options & Compatibility
Different meters may require different connection formats. Always confirm connector type before ordering.
| Connector / Option | Notes |
|---|---|
| S7 | This electrode features S7 connector. Use with S7-BNC(Q9) cable for meters with BNC input. |
| BNC(Q9) | Common pH electrode connector format. Can be adapted via S7-BNC(Q9) cable. |
pH Composite Electrode for Ultrapure Water
A specialized pH composite electrode for ultrapure water and low-conductivity samples with Longlife Reference, porous PTFE junction, epoxy body, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
