COLO.Science · Technical Specification
pH Composite Electrode
General-purpose pH composite electrode with Ag/AgCl reference, glass body and BNC(Q9) connector
SKU PRO6140 · pH 0–14 · 5–60 °C · Φ12×120 mm
PRO6140 pH Composite Electrode is a general-purpose laboratory pH electrode for routine pH measurement in aqueous samples.
The electrode combines the pH indicator and reference electrode in one glass-body probe, using a stable Ag/AgCl reference system,
single ceramic junction, 3 M KCl fill solution and standard BNC(Q9) connection for direct compatibility with most laboratory pH meters.
pH composite electrode
Ag/AgCl reference
pH 0–14
Glass body
Single ceramic junction
3 M KCl
5–60 °C
Φ12×120 mm
BNC(Q9)
PRO6140 · pH composite electrode · Ag/AgCl reference · glass body
SKU
PRO6140
pH electrode
pH electrode
Address / HQ
Polje ob Sotli 4
SI-3255, Slovenia
SI-3255, Slovenia
Contact
sales@colo.si
+386 64 222 724
+386 64 222 724
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PRO6140 · pH Composite Electrode
Technical data sheet · Informational document · Controlled electronic document
Product page: PRO6140 on colo.si
Product page: PRO6140 on colo.si
General-purpose pH composite electrode with Ag/AgCl reference, glass body and BNC(Q9) connector
Technical specification · SKU PRO6140 · pH 0–14 · 5–60 °C · Φ12×120 mm
pH range 0–14
Working temp. 5–60 °C
3 M KCl
Single ceramic junction
BNC(Q9)
— Routine laboratory electrode for pH measurement in aqueous samples
📋 Product Overview
Application profile
Routine pH measurement: everyday pH measurement in aqueous samples and QC workflows.
Education and training: clear composite-electrode format for pH measurement and calibration practice.
Industrial and research labs: general-purpose electrode for sample checks and laboratory control.
Meter compatibility: BNC(Q9) connector for compatible pH meters with BNC input.
Design and handling advantage
Composite design: pH indicator and reference electrode integrated in one body.
Glass body: robust body for standard laboratory liquids and careful bench handling.
Stable reference: Ag/AgCl reference and 3 M KCl fill support reproducible measurement.
Standard geometry: Φ12×120 mm format fits common glassware and electrode holders.
Key features
pH range: 0–14 pH for routine aqueous sample measurement.
Temperature range: 5–60 °C working temperature.
Reference system: Ag/AgCl with 3 M KCl fill solution.
Junction: single ceramic junction for stable electrolyte contact.
Connection: BNC(Q9) connector for compatible pH meters.
Physical format: Φ12×120 mm glass body.
Core technical summary
| Parameter | Specification |
|---|---|
| SKU | PRO6140 |
| Product name | pH Composite Electrode Ag/AgCl · Φ12×120 mm |
| Electrode type | Composite pH electrode |
| pH range | 0–14 |
| Sensor material | Glass |
| Reference type | Ag/AgCl |
| Junction material | Single ceramic |
| Fill solution | 3 M KCl |
| Working temperature | 5–60 °C |
| Connector | BNC(Q9) |
| Dimensions | Φ12×120 mm |
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📊 Technical Specifications
Electrode construction and materials
| Parameter | Specification |
|---|---|
| SKU | PRO6140 |
| Name | pH composite electrode |
| Electrode category | Composite pH electrode combining pH indicator and reference electrode. |
| Sensor material | Glass. |
| Reference type | Ag/AgCl reference system. |
| Junction material | Single ceramic junction. |
| Fill solution | 3 M KCl. |
| Body dimensions | Φ12×120 mm. |
| Body format | Standard laboratory electrode body for common glassware and electrode holders. |
| Connector type | BNC(Q9). |
| Main product image | Open PRO6140 electrode image |
| Connector reference image | Open connector image |
Measurement and operating profile
| Function | Technical note |
|---|---|
| pH range | 0–14 pH. |
| Working temperature | 5–60 °C. |
| Recommended sample type | Routine aqueous laboratory samples. |
| Typical use | Routine pH measurement, calibration practice, laboratory QC and general electrochemistry workflows. |
| Temperature note | This is not a 3-in-1 pH electrode with integrated temperature probe. Use meter temperature compensation according to the selected meter and method. |
Connector, compatibility and ordering notes
| Parameter | Specification / note |
|---|---|
| Primary connector | BNC(Q9). |
| Direct compatibility | Compatible with pH meters that accept standard BNC pH electrode input. |
| S7 meter input | For meters with S7 input, use an S7–BNC(Q9) cable if required by the meter configuration. |
| Compatibility check | Always confirm meter input type, electrode connector and measurement method before purchase. |
| Product page | Open PRO6140 product page |
| Electrochemistry category | Open electrochemical instruments page |
| Quotation path | Request official quotation |
Specification note
Electrode selection: final selection should match the sample matrix, required pH range, operating temperature and meter connector.
Calibration: use fresh pH buffers and follow the pH meter calibration procedure before routine measurement.
Storage: keep the pH glass membrane hydrated and follow the electrode storage instructions supplied with the electrode or meter.
Connector: BNC(Q9) is the electrode signal connector. Temperature measurement requires a separate temperature probe unless using a 3-in-1 electrode.
Technical values are provided for product selection and orientation. Final delivered configuration, connector cable, accessory set and documentation should be confirmed through the official COLO.Science quotation or manufacturer-confirmed offer.
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🧰 Visual Reference, Connector and Compatibility Support
Connector reference
Practical compatibility checklist
Meter input: confirm that the pH meter has BNC input or the correct adapter cable.
Sample matrix: use this electrode for routine aqueous samples; verify suitability for aggressive, non-aqueous or high-temperature samples.
Temperature: for automatic temperature compensation, pair the meter with a compatible temperature probe or select a 3-in-1 electrode model.
Consumables: prepare fresh pH buffers, electrode storage solution and cleaning routine for stable results.
Navigation note — this specification is linked back to COLO.Science
This technical specification contains direct links to the PRO6140 product page, quotation request page, COLO.Science home page and electrochemical instruments page. If a user opens this document directly from Google or on a mobile device, the page remains connected to the main website and quotation path.
📌 Selection and Use Notes
For routine pH measurement
Calibration: calibrate with suitable pH buffers before measurement.
Hydration: keep the glass membrane hydrated for stable response.
For connector matching
BNC(Q9): direct connection to compatible pH meters.
S7 input: use adapter cable if the meter requires S7 connection.
For electrode care
Storage: avoid dry storage of the pH glass membrane.
Cleaning: clean according to sample contamination and laboratory procedure.
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COLO.Science · Final Support Page
Supplier and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: Send the pH meter model, connector type, sample matrix, operating temperature and required electrode format.
COLO.Science can help confirm whether PRO6140 is the correct electrode or whether a special-purpose / 3-in-1 electrode is required.
Quick contact
COLO.Science · PRO6140 pH composite electrode support
Need help confirming the correct pH electrode and connector?
Send the meter model, connector type, sample matrix, required pH range and whether temperature compensation is needed. COLO.Science can help confirm the correct electrode configuration for routine laboratory pH measurement or recommend a compatible alternative.
Official configuration and manufacturer-confirmed specification notice:
This technical specification is provided for orientation, product selection and general information only. It does not represent the final binding technical specification, delivered configuration, accessory set, procurement requirement or acceptance criterion for a specific unit. The final official technical specification is only the specification confirmed by the manufacturer and issued for the exact configuration through an official COLO.Science quotation, proforma invoice, contract document, order confirmation or manufacturer-approved technical offer. Any values, options, accessories or configurations shown in this document must be verified for the specific delivery and should not be used as an exclusion or elimination criterion in procurement procedures without written manufacturer confirmation.
This technical specification is provided for orientation, product selection and general information only. It does not represent the final binding technical specification, delivered configuration, accessory set, procurement requirement or acceptance criterion for a specific unit. The final official technical specification is only the specification confirmed by the manufacturer and issued for the exact configuration through an official COLO.Science quotation, proforma invoice, contract document, order confirmation or manufacturer-approved technical offer. Any values, options, accessories or configurations shown in this document must be verified for the specific delivery and should not be used as an exclusion or elimination criterion in procurement procedures without written manufacturer confirmation.
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