Product details
Long-Body Inline 2-Electrode Conductivity Sensor
The InstroDirect IDC-2W-SS-L Inline Long-Body Stainless 2-Electrode Conductivity Sensor is an extended-body two-electrode conductivity probe for deep-insertion installations in process tanks, wastewater return lines, and industrial cooling loops. The longer wetted body keeps the electrode clear of wall effects and sediment while the 1″ NPT thread provides a secure, vibration-tolerant mount.
Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement method | 2-electrode contacting |
| Conductivity range | 0 – 200 mS/cm |
| Cell constant (K) | K = 1.0 (cm⁻¹) |
| Accuracy | ±1% of reading |
| Temperature measurement | Integrated Pt1000 / Pt100 |
| Operating temperature | 0 – 100 °C |
| Pressure rating | ≤ 10 bar |
| Output signal | RS485 Modbus RTU + Pt1000 |
| Body / wetted materials | 316 stainless body, graphite electrodes, FKM O-rings |
| Process connection | 1″ NPT (or G1) threaded |
| Ingress protection | IP68 |
| Cable | 5 m PG9 cable gland, 4-core shielded |
| Warranty | 12 months, Australian-backed |
Typical Australian Applications
- WWTP return activated sludge monitoring
- Large industrial cooling tower basins
- Heated process tanks
- Plating rinse water
- Council potable water reservoirs
Why Integrators Choose the IDC-2W-SS-L
- Extended body immerses electrodes clear of tank walls and settled solids
- 1″ thread spreads mechanical load in vibrating installations
- 316 stainless body handles chloride-rich wastewater and brine
- Integrated Pt1000 eliminates the need for a separate RTD
- RS485 Modbus integrates with AB, Siemens, Schneider, and Beckhoff
Installation & Calibration Notes
Install through a pipe boss with the electrodes at least 50 mm clear of any wall. Mount at 15° downward incline in horizontal lines to prevent air pocket entrapment. Clean electrodes with dilute HCl every 3–6 months depending on scaling.
Frequently Asked Questions
Can this be used in wastewater?
Yes — 316 stainless handles most WWTP chemistries. For high-biofilm sludge applications, consider the 4-electrode IDC-4E-SS which handles fouling better.
What insertion depth is provided?
Approximately 120 mm from the thread face to electrode tip. For custom lengths (150 mm, 200 mm, or 300 mm) contact us for a quote.
Is this suitable for steam boilers?
Below 100 °C and 10 bar, yes. For higher temperature or pressure service, specify the PEEK-body or sanitary variants.
Australian Technical Support, Calibration & Consumables
- Phone and email technical support from Brisbane-based field engineers with 20+ years automation experience
- On-site two-point conductivity calibration across QLD, NSW, VIC with certificate of calibration
- KCl calibration solutions (1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm) stocked locally
- Replacement electrodes and O-rings for extended service life — dispatched same business day ex Brisbane
- Next-day delivery across Australia for stock items; trade pricing from 5 units
InstroDirect also stocks the full water-analysis reagent range for pH, dissolved oxygen, chlorine, ammonia, and nitrate monitoring.
Request a Trade Quote
Panel builders, system integrators, council water departments, food & beverage engineers, and pharma/process teams get volume trade pricing. Submit a quote request and we’ll respond within one business day with stock, pricing, and lead time.
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