Overview
The Cole-Parmer 05993-90 is a rugged in-line pH electrode engineered for reliable pH measurement in process control and analytical applications. This single-junction electrode features a BNC connector and includes a 10-ft cable with tinned ends, making it compatible with most pH controllers and data acquisition systems. The unit combines field-proven durability with straightforward installation, making it ideal for wastewater treatment, food & beverage, pharmaceutical, and industrial water monitoring.
Key Features
- Single-junction design minimizes maintenance and clogging issues
- BNC connector ensures universal compatibility with pH controllers and analyzers
- PVC housing with 3/4″ NPT(M) threads for in-line or submersible mounting
- Epoxy body rated to 100 psi for reliable operation under pressure
- No ATC element—simple, cost-effective solution for static pH measurement
- 10-ft pre-assembled cable with tinned copper leads for quick connection
Technical Specifications
- Measurement Range: pH 0–14
- Operating Temperature: 23–176°F (−5 to 80°C)
- Maximum Pressure: 100 psi
- Housing Material: PVC with epoxy body
- Connection Type: 3/4″ NPT(M) threads (both ends)
- Connector Type: BNC (pH) + tinned cable ends
- Cable Length: 10 ft
- Dimensions: 6-3/4″ L × 1″ OD
- Insertion Depth: 1-3/4″
- Junction Type: Single-junction
- ATC Element: None
Typical Applications
- Wastewater treatment and environmental monitoring
- Industrial water quality control
- Food & beverage processing
- Pharmaceutical manufacturing
- Cooling tower and boiler water pH monitoring
- Laboratory and bench-top testing (in-line configuration)
Compatibility & Replacements
Compatible With
- Cole-Parmer pH/ORP controllers and analyzers
- Oakton pH measurement instruments
- Industrial process control systems with BNC pH input
- Data acquisition systems accepting analog pH signals
- Any analyzer or transmitter with standard BNC connector and 4–20 mA or 0–10 V output capability
Replaces / Drop-In Replacement For
- Cole-Parmer EW-05993-10 (similar single-junction in-line electrode)
- Oakton WD-05993-90 (equivalent model designation)
- Other single-junction BNC pH electrodes with matching NPT thread size and insertion depth
Works With
- Cole-Parmer 300 pH/ORP/Temperature 1/8-DIN controller
- Standard benchtop and portable pH meters with BNC input
- Process transmitters and industrial recorders accepting BNC analog signals
- Laboratory information management systems (LIMS) via appropriate signal conditioning
