Conductivity Probe (DPC1-S)

WhatsApp Order
The Conductivity Probe (DPC1-S) is a replacement combined multi-parameter electrode specifically designed for DLAB  Conductivity Probe (DPC1-S) pen-type multi-parameter meter and DPC1+ Bluetooth pen meter, integrating pH sensing (glass bulb), conductivity sensing (platinum electrodes), and temperature sensing (thermistor) into a single replaceable probe for comprehensive water quality analysis .
The  Conductivity Probe (DPC1-S) enables the DPC1 and DPC1+ meters to measure pH (-2.00 to 16.00 pH, accuracy ±0.01 pH), conductivity (0 to 19.99 mS/cm, auto-ranging, accuracy ±1.0 percent full scale), TDS (0.0 mg/L to 10.0 g/L with adjustable coefficient), salinity (0 to 10 ppt), resistivity (50 Ω·cm to 20 MΩ·cm), and temperature (0 to 60 degrees Celsius, accuracy ±0.2 degrees Celsius) .
The probe is pre-installed in new DPC1 and DPC1+ meter kits and is available as a replacement part to extend instrument service life—electrode replacement rather than complete meter replacement . The combined electrode design integrates multiple sensing elements into one probe, eliminating the need for separate electrodes for different parameters . The probe supports 1 to 3 point automatic pH calibration with buffer recognition and 1 point automatic conductivity calibration with standard solution recognition, and is compatible with CH, USA, and NIST standard buffer solutions for flexible calibration options . The probe shares the meter’s IP67 dustproof and waterproof rating for reliable operation in harsh field environments .
For the clinical laboratory scientist, dialysis technician, and water quality specialist, the  Conductivity Probe (DPC1-S) ensures continued, accurate multi-parameter water quality monitoring of purified water systems, dialysis fluids, and pharmaceutical process water—critical parameters for ensuring patient safety during renal replacement therapy and drug manufacturing. The combination electrode design simplifies field testing by integrating all necessary sensors into a single probe, and replacement is straightforward for trained laboratory personnel.
For the patient, reliable replacement parts ensure continuous water quality monitoring in dialysis and pharmaceutical applications, preventing gaps in quality surveillance that could compromise patient safety.
Description

Conductivity Probe (DPC1-S)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Replacement Multi-Parameter Sensor for Pen-Based Water Quality Analyzers
  • Primary Use: Provides a replacement combined electrode specifically designed for DLAB DPC1 and DPC1+ pen meters, integrating pH sensing, conductivity measurement, and temperature sensing into a single probe for comprehensive water quality analysis .
  • How it helps: For the clinical laboratory scientist and water quality specialist, the DPC1-S allows continued use of the DPC1 and DPC1+ pen meters by replacing only the sensing electrode rather than the entire instrument—reducing equipment costs and minimizing downtime for critical water quality monitoring. The combination electrode design integrates multiple sensing elements into a single probe, eliminating the need for separate electrodes for different parameters . For the patient, reliable replacement parts ensure continuous monitoring of dialysis water and purified water systems, preventing gaps in water quality surveillance that could compromise patient safety.
2. pH Measurement for Dialysis Water and Biological Fluid Testing
  • Primary Use: Measures pH across the range of -2.00 to 16.00 with accuracy of ±0.01 pH ±1 digit, supporting pH assessment of purified water, dialysis fluids, and biological specimens when used with compatible pen meters .
  • How it helps: For dialysis technicians and clinical laboratory scientists, the DPC1-S sensor enables rapid, on-site pH verification of water used in renal replacement therapy and biological fluid analysis. The 1 to 3-point automatic calibration with buffer recognition ensures measurement reliability across different sample types . For the patient, accurate pH measurement of dialysis water helps prevent adverse events related to improper water composition, while pH testing of biological fluids supports diagnosis of metabolic acidosis, alkalosis, diabetic ketoacidosis, and renal tubular disorders.
3. Conductivity, TDS, and Resistivity for Water Purity Verification
  • Primary Use: Measures conductivity (0 to 19.99 mS/cm with auto-ranging), TDS (0.0 mg/L to 10.0 g/L with adjustable coefficient), salinity (0 to 10 ppt), and resistivity (50 Ω·cm to 20 MΩ·cm), providing comprehensive water purity assessment for pharmaceutical and clinical applications .
  • How it helps: For the pharmaceutical quality control chemist and water quality specialist, the DPC1-S enables portable measurement of multiple water purity parameters with conductivity accuracy of ±1.0 percent of full scale ±1 digit. The auto-ranging capability ensures accurate readings across a wide range of sample types—from ultrapure water to saline solutions . For the patient, rigorous conductivity, TDS, and resistivity monitoring of pharmaceutical water systems ensures that injectable medications and intravenous solutions meet stringent purity standards, supporting product safety.
4. Temperature Sensing for Automatic Temperature Compensation
  • Primary Use: Integrated temperature sensor measures sample temperature from 0 to 60 degrees Celsius with accuracy of ±0.2 degrees Celsius, providing essential thermal data for automatic temperature compensation of pH and conductivity measurements .
  • How it helps: For the clinical laboratory scientist and water quality specialist, the built-in temperature sensor eliminates the need for a separate temperature probe, while automatic temperature compensation ensures that pH and conductivity readings are automatically corrected to standard reference temperatures, eliminating calculation errors and improving measurement accuracy . For the patient, accurate temperature-compensated measurements ensure that water quality data used for clinical decision-making is reliable and consistent across varying sample temperatures.
5. Compatibility with DPC1 and DPC1+ Meter Systems
  • Primary Use: Designed as the dedicated replacement electrode for DLAB DPC1 pen-type multi-parameter meter and DPC1+ Bluetooth pen meter, ensuring proper fit and electrical compatibility for pH, conductivity, ORP, and temperature measurement .
  • How it helps: For the laboratory manager and equipment coordinator, using the manufacturer-specified replacement probe ensures optimal instrument performance, calibration accuracy, and measurement reliability. The combination electrode design integrates multiple sensing elements—pH glass bulb, conductivity platinum sensors, and temperature thermistor—into a single replaceable probe . For the patient, properly compatible replacement parts ensure that water quality monitoring equipment continues to function within manufacturer specifications, maintaining the integrity of quality assurance programs.

SECONDARY & SUPPORTIVE USES

1. Purified Water System Verification: Used with DPC1 and DPC1+ meters to verify pH, conductivity, TDS, and resistivity of purified water, water-for-injection, and distilled water in hospital and laboratory water treatment systems.
2. Pharmaceutical Process Water Testing: Supports pH, conductivity, and TDS measurement for validation and routine monitoring of pharmaceutical water systems, with probe replacement ensuring continued compliance.
3. Dialysis Water Quality Verification: Used with DPC1 and DPC1+ meters to test pH, conductivity, and TDS of dialysis water and dialysate solutions, with regular probe replacement maintaining measurement accuracy.
4. Cooling Tower and Boiler Water Testing: Measures pH, conductivity, and TDS in cooling towers, boiler feed water, and steam generation systems to control blowdown cycles and prevent scale formation.
5. Environmental and Wastewater Monitoring: Enables pH, conductivity, and TDS measurement of wastewater discharge, surface water, and groundwater in hospital environmental monitoring programs.
6. Reagent and Buffer Quality Control: Verifies pH and conductivity of laboratory reagents, buffers, and preparation solutions to ensure consistent experimental conditions.
7. Aquaculture and Zebrafish Facility Management: Used to check pH, conductivity, and salinity levels in aquatic animal housing facilities within research institutions.
8. Hydroponic and Agricultural Nutrient Management: Monitors pH and nutrient solution conductivity (EC) in controlled environment agriculture and research plant growth facilities.
9. Electrode Replacement for Extended Instrument Life: Serves as the replacement component to extend the service life of DPC1 and DPC1+ meters when the original probe reaches end of life .
10. Multi-Parameter Sensing Capability: Combines pH glass bulb, conductivity platinum sensors, and temperature thermistor in a single probe, enabling comprehensive water quality assessment with one electrode .
11. Calibration Support: The probe is compatible with CH, USA, and NIST standard buffer solutions for flexible calibration options .
12. IP67-Compatible Probe: The probe shares the meter’s IP67 dustproof and waterproof rating, suitable for use in harsh field environments .
13. Combined Electrode Design: Combination electrode design allows replacement as needed to meet different testing requirements .
14. Transparent Housing: Allows visual confirmation of solution level and bubble detection for reliable measurements.
15. Low Maintenance Design: Features sealed, maintenance-free construction requiring no electrolyte refilling; simple cleaning and storage procedures.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: A replacement combined multi-parameter electrode for DLAB DPC1 and DPC1+ pen meters, integrating pH sensing (glass bulb), conductivity sensing (platinum), and temperature sensing (thermistor) into a single replaceable probe for comprehensive water quality analysis .
  • Designation: DPC1-S Conductivity Probe,  Conductivity Probe (DPC1-S) Replacement Electrode, Multi-Parameter Pen Meter Probe, DLAB DPC1-S, Combination Electrode.
  • Key Components:
    • pH Sensing Element: Glass bulb for pH measurement .
    • Conductivity Sensing Element: Platinum electrodes for conductivity, TDS, salinity, and resistivity measurement .
    • Temperature Sensor: Integrated thermistor for automatic temperature compensation .
    • Probe Body: Sealed, combined probe design.
    • Connection: Compatible with DPC1 and DPC1+ meter housing .
    • Materials: Glass pH bulb, platinum sensing elements, durable plastic housing.

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Compatible Meters: DPC1 Pen-Type Multi-Parameter Meter, DPC1+ Bluetooth Pen Meter .
  • pH Measurement Range (with compatible meter): (-2.00 to 16.00) pH .
  • pH Resolution (with compatible meter): 0.1 or 0.01 (selectable) .
  • pH Accuracy (with compatible meter): ±0.01 pH ±1 digit .
  • pH Calibration (with compatible meter): 1 to 3 points automatic calibration; automatic buffer recognition .
  • pH Automatic Temperature Compensation Range: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) .
  • Conductivity Measurement Range (with compatible meter): 0 to 19.99 mS/cm, auto-ranging segments: 0 to 19.99 μS/cm; 20.0 to 199.9 μS/cm; 200 to 1999 μS/cm; 2.00 to 19.99 mS/cm .
  • TDS Range (with compatible meter): 0.0 mg/L to 10.0 g/L (TDS coefficient adjustable) .
  • Resistivity Range (with compatible meter): 50 Ω·cm to 20 MΩ·cm .
  • Salinity Range (with compatible meter): 0 to 10 ppt .
  • Conductivity Accuracy (with compatible meter): ±1.0 percent of full scale ±1 digit .
  • Temperature Measurement Range (with compatible meter): 0.0 to 60.0 degrees Celsius (32.0 to 140.0 degrees Fahrenheit) .
  • Temperature Accuracy (with compatible meter): ±0.2 degrees Celsius .
  • Probe Type: Combined electrode design; replaceable .
  • Sensing Materials: Glass (pH bulb), Platinum (conductivity), Thermistor (temperature) .
  • Protection Class (with meter): IP67 (dustproof and waterproof) .
  • Calibration Compatibility: Supports CH, USA, and NIST standard buffer solutions .
  • Storage Requirement: 3 mol KCl pH/ORP electrode soaking solution recommended for pH bulb hydration .
  • Replacement Purpose: Extends instrument service life by allowing electrode replacement rather than complete meter replacement .

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Construction: Pen-style combined probe designed to fit DPC1 and DPC1+ meter housing; sealed, maintenance-free design .
  • Sensing Technology: Glass pH bulb for hydrogen ion activity; platinum electrodes for conductivity; thermistor for temperature .
  • Installation: User-replaceable; installs directly into DPC1 and DPC1+ meter body .
  • Compatibility: Specifically designed for DLAB DPC1 and DPC1+ pen meters; not compatible with other meters .
  • Maintenance: Requires no electrolyte refilling; clean with distilled water after each use; keep pH bulb moist .
  • Storage: Store electrode with protective cap in place; keep pH sensing bulb moist using 3 mol KCl storage solution to prevent drying; never store dry .
  • Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use .
  • Visual Confirmation: Transparent housing allows visible confirmation of solution level and detection of air bubbles.
  • Durability: Designed for harsh field environments with IP67 rating when installed on meter .
  • Calibration: Performed through the DPC1 and DPC1+ meters using standard solutions; probe does not require separate calibration.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Regulatory Status: Accessory and replacement part for in vitro diagnostic preparatory equipment (DPC1 and DPC1+ meters).
  • Safety Certifications: Manufactured under ISO 9001:2015 quality management system; CE compliant.
  • Protection Class (with meter): IP67 (dustproof and waterproof against temporary immersion up to 1 meter for 30 minutes) .
  • Material Safety: Glass pH bulb (fragile, handle with care); platinum sensing elements (biocompatible, corrosion-resistant); durable plastic housing; RoHS compliant materials.
  • Electrical Safety: Low-voltage passive component; safe for use with DPC1 and DPC1+ meters (four AAA batteries, 1.5 volts each).
  • Replacement Indicator: Replace probe when readings become unstable, calibration fails repeatedly, glass bulb is cracked, or physical damage is visible.

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store probe with protective cap in place; keep pH sensing bulb moist using 3 mol KCl pH/ORP electrode soaking solution; never store dry; avoid extreme temperatures and direct sunlight .
  • Cleaning: Rinse with distilled water after each use; for stubborn residues, use mild detergent and soft brush, taking care not to damage the glass pH bulb or platinum sensing elements; do not scrub glass bulb or platinum surfaces with abrasive materials.
  • Inspection: Inspect the glass pH bulb for cracks or damage before each use; check platinum sensing elements for contamination; inspect the probe body for any visible damage; verify that the transparent housing is free of bubbles or residue.
  • Installation: Insert probe into DPC1 or DPC1+ meter body securely; ensure proper electrical contact; follow meter instructions for probe replacement .
  • Calibration: After probe replacement, calibrate the DPC1 or DPC1+ meter using appropriate calibration standards before use—pH buffers (pH 4.00 and pH 6.86 or 7.00) and conductivity standards (1408 μS/cm and 12.85 mS/cm) .
  • Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use .
  • Handling: Handle with care to prevent damage to the glass pH bulb; do not touch glass bulb or platinum sensing elements with fingers; do not bend or apply excessive force to the probe.
  • Bubble Detection: Use transparent housing to verify no air bubbles are trapped on sensing elements during measurement, as bubbles will cause unstable or inaccurate readings.
  • Replacement Frequency: Replace probe when meter readings become unstable, calibration fails repeatedly, glass bulb is cracked, or physical damage is evident; no fixed replacement interval—depends on usage and sample types.
  • Disposal: Dispose of used probe according to local electronic waste regulations; the probe contains glass, platinum (precious metal), and plastic components.

6. LABORATORY & CLINICAL APPLICATIONS

  • Primary Application: Replacement multi-parameter electrode for DPC1 and DPC1+ pen meters, used for measuring pH, conductivity, TDS, salinity, resistivity, and temperature in purified water, dialysis fluids, pharmaceutical process water, and environmental samples in clinical diagnostic, pharmaceutical, and research settings.
  • Clinical Role: Essential replacement component for water quality testing instruments used in dialysis units, hospital engineering departments, pharmaceutical quality control laboratories, and environmental monitoring programs requiring portable multi-parameter water quality measurement.
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Handling: Handle probe with care to avoid damage to the glass pH bulb; glass bulb is fragile and can break if bumped or dropped. Do not touch the glass bulb or platinum sensing elements with fingers, as oils can affect measurement accuracy .
  • Cleaning: Do not use abrasive materials or harsh chemicals on the glass pH bulb or platinum sensing elements; rinse thoroughly after cleaning to remove all residue.
  • Storage: Always store probe with protective cap in place; keep the pH sensing bulb moist using 3 mol KCl storage solution to prevent drying; never store dry .
  • Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use.
  • Compatibility: Use only with DLAB DPC1 or DPC1+ meters; using with incompatible meters may damage the probe or produce inaccurate readings .
  • Bubble Prevention: Ensure no air bubbles are trapped on sensing elements during measurement; bubbles cause unstable or inaccurate readings.
  • Calibration Requirement: Always recalibrate the meter after installing a new DPC1-S probe to ensure measurement accuracy for all parameters .
  • Avoid Freezing: Do not allow the probe to freeze; freezing temperatures may damage the glass pH bulb and sensing elements.
  • Avoid Dehydration: Do not allow the pH sensing bulb to dry out; prolonged dry storage will damage the glass membrane and require extended rehydration .
  • Training: Only trained laboratory personnel should replace and handle the DPC1-S probe for water quality testing applications.

2. FIRST AID MEASURES

  • Glass Breakage: If the glass pH bulb breaks, carefully collect any glass fragments using forceps; dispose in sharps container; inspect sample for glass contamination before further use; avoid skin contact with broken glass edges.
  • Sample Splash: If sample splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water.
  • Storage Solution Exposure: If electrode storage solution (3 mol KCl) splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water.
  • Electrical Malfunction: If the meter with installed probe shows signs of electrical malfunction, remove batteries immediately; do not attempt to operate; contact service personnel.

3. FIRE FIGHTING MEASURES

  • Flammability: The plastic housing is combustible; may melt or burn if exposed to flame or high heat.
  • Extinguishing Media: Use carbon dioxide or dry chemical extinguisher for fires involving plastic components.
  • Fire Response: Remove from heat source if safe to do so; do not use water on electrical fire.