Touchscreen conductivity meter

Introduction

A touchscreen conductivity meter is a conductivity meter with a touchscreen interface, used for the measurement of the electrical conductivity of the liquids, and it is used in the laboratories, the water treatment, the environmental monitoring, the food and the beverage, and the many other applications. The touchscreen conductivity meter consists of a conductivity cell with the electrodes, a signal processing circuit, a touchscreen display and the control, and it measures the conductivity by the measurement of the current flow between the electrodes, with the automatic temperature compensation, and it displays the conductivity value and the related parameters, such as the total dissolved solids (TDS) and the salinity, with features such as the touchscreen operation, the data logging, the calibration, and the connectivity; the touchscreen conductivity meter provides a convenient and an intuitive operation, and it is available as the benchtop and the portable models, and it is used for the measurement of the conductivity of the water, the solutions, the wastewater, the beverages, and the many other samples, for the monitoring of the dissolved solids, for the quality control, for the water treatment, for the environmental monitoring, and for many other applications; the touchscreen conductivity meter is an essential instrument for the conductivity measurement. Touchscreen conductivity meters are used in the laboratories, in the water treatment plants, in the environmental monitoring, in the food and the beverage industry, and for many other applications. With their touchscreen interface, touchscreen conductivity meters are essential for the convenient conductivity measurement.

Touchscreen Conductivity Meter LOCM-T2010

Touchscreen Conductivity Meter is a compact design that offers a measurement range of 0.5μS/cm to 200mS/cm. It is equipped with advanced a 7-inch color touchscreen with high resolution ...

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Touchscreen Conductivity Meter LOCM-T2011

Touchscreen Conductivity Meter is a compact, bench-top design that measures conductivity with ±0.5% accuracy. It also supports resistivity, salinity, total dissolved solids (), and temp...

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Touchscreen Conductivity Meter LOCM-T2010

Touchscreen Conductivity Meter measures conductivity from 0.5 μS/cm to 200 mS/cm accurately. It features a 7-inch color capacitive touchscreen with high sensitivity and intuitive parame...

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Standards

USP General Chapter <645>-Water Conductivity

IEC 60746-3:2002-Expression of performance of electrochemical analyzers-Part 3: Electrolytic conductivity

Complies with the above standards, but is not limited to them.

Features

1. Touchscreen conductivity meter for high-accuracy conductivity/TDS/salinity measurement with intuitive color touchscreen.

2. Advanced benchtop or portable conductivity analyzer with graphical calibration, data logging and GLP/GMP support.

3. Suitable for water treatment, environmental, pharmaceutical, food/beverage, chemical and research laboratories.

4. Includes meter body, conductivity cell, temperature probe, calibration standards, power supply and operation manual.

5. Supports conductivity (microS/cm, mS/cm), TDS (ppm), salinity (ppt), resistivity (MOhm-cm) and temperature measurement.

FAQ

Q1: What testing scenarios is this meter mainly applied to?

A: The touchscreen conductivity meter is used in water treatment, environmental monitoring, pharmaceutical, food/beverage, chemical, and research laboratories for high-accuracy measurement of electrical conductivity and related parameters (TDS, salinity, resistivity) with the convenience of a color touchscreen for intuitive calibration, data review, and regulatory compliance (GLP/GMP). It supports water treatment (drinking water (conductivity as indicator of dissolved solids, treatment efficiency, RO/DI system performance; typical drinking water 50-800 microS/cm; distilled/DI <1 microS/cm; UPW <0.056 microS/cm at 25 C), wastewater (influent/effluent conductivity - process control, discharge monitoring, industrial discharge), RO/DI system monitoring (conductivity increases as membrane degrades or resin exhausts; quick QC), boiler/cooling water (conductivity for blowdown control, corrosion/scale monitoring)), environmental (rivers, lakes, groundwater, estuaries, seawater (conductivity/salinity - ecological monitoring, pollution detection (industrial discharge increases conductivity), stormwater), pharmaceutical (purified water (PW), water for injection (WFI) - conductivity is critical per USP <645>, EP 2.2.38; WFI conductivity <1.3 microS/cm at 25 C (stage 1); clean-in-place validation), food and beverage (brewing (water quality for mashing: conductivity/hardness), bottled water quality, beverage production, cleaning validation (CIP rinse water conductivity)), chemical (process water, wastewater, solution quality, plating baths (conductivity of electrolyte, metal concentration), cleaning solutions), and research/education (chemistry labs, water quality research, teaching labs). Touchscreen interface provides: intuitive calibration (graphical, step-by-step, multi-point), simultaneous conductivity + temperature display, data logging (with time/date/operator/calibration metadata), method storage, GLP/GMP compliance (user login, audit trail, calibration records), and connectivity (USB/Ethernet/LIMS). Higher accuracy than basic meters (typically +/- 0.5% full scale, resolution 0.01 microS/cm) with multi-point calibration and advanced cells. This is similar to 3283 (electrical conductivity tester) but with touchscreen interface and higher accuracy/features - see 3283 for detailed conductivity fundamentals, calibration, and sample compatibility. The touchscreen is the key differentiator.

Q2: What standards does the meter comply with?

A: The touchscreen conductivity meter follows relevant ISO, ASTM, USP/EP and GB/T standards including ISO 7888 (water quality - determination of electrical conductivity), ASTM D1125 (standard test methods for electrical conductivity and resistivity of water), USP <645> (water conductivity - pharmaceutical water, three-stage test), EP 2.2.38 (conductivity), and GB/T standards for conductivity meters. The hardware complies with applicable analytical instrument standards (accuracy +/- 0.5-1%, resolution 0.01 microS/cm), EMC (IEC 61326), and safety (IEC 61010). Calibration uses certified conductivity standards (KCl solutions: 1413 microS/cm, 12.88 mS/cm, 111.3 mS/cm at 25 C, traceable to national standards) per ISO 7888/ASTM D1125. For pharmaceutical water, follow USP <645> (stage 1: uncompensated conductivity at measured temp, compare to table; stage 2: stir and measure after pH adjustment; stage 3: titration). For drinking/wastewater, follow EPA/Standard Methods and ISO 17025. For food/beverage, follow AOAC/ASBC methods. Touchscreen meters with data logging and user management support GLP/GMP (calibration records, audit trail, 21 CFR Part 11 if electronic records). For regulated labs, follow ISO 17025 and maintain calibration records. See 3283 for detailed standards.

Q3: What is the warranty period for the whole meter and key components?

A: The whole touchscreen conductivity meter is covered by a 12-24 month warranty (analytical instruments often 2 years; some 3 years). The meter body, touchscreen, electronics, and temperature sensor are covered, while conductivity cell (wear part - electrodes can foul/platinize, cell constant drifts; replaceable), calibration standards (consumable - expire, absorb CO2/moisture), and power supply are accessories. Damage from improper use, probe fouling (scale, biofilm, protein - clean regularly; plating baths can deposit metals), dry storage (most cells can be stored dry; polarized cells may need conditioning), dropping (portable units), liquid ingress into meter, touchscreen damage (scratches, impact), or unauthorized repair is excluded. Extended warranty and service contracts (calibration, cell replacement) may be available. Electronics/touchscreen last 5-10 years; conductivity cell lasts 1-5 years depending on use/fouling (platinized cells need replating when response slows). See 3283 for detailed warranty.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation is intuitive with touchscreen interface (guided menus, calibration prompts, on-screen help). No professional training required for basic measurement, but proper calibration and cell maintenance are critical for accuracy. We provide operation manuals and on-screen guidance. Proper setup (connect power, turn on, allow warm-up (15-30 min), connect conductivity cell and temperature probe (ATC), prepare calibration standards (fresh, at measurement temperature; select standards spanning expected range; for pure water use low-conductivity standard or verify with resistivity), calibration via touchscreen (navigate to conductivity calibration, select points (1-5 point), follow prompts: rinse cell, blot, immerse in standard (ensure electrodes fully submerged, no air bubbles), stir gently, wait for stable reading (30-60 sec), confirm; repeat for additional points; touchscreen displays calibration status, cell constant, and saves; for best accuracy: 2-3 point calibration; calibrate before each use or at start of day), sample measurement (select method, rinse cell with DI then sample, immerse in sample (fully submerge electrodes, no air bubbles), stir gently or move cell (for consistent reading), wait for stability (30-60 sec), touchscreen displays conductivity (microS/cm or mS/cm), TDS (ppm), salinity (ppt), resistivity (MOhm-cm), and temperature, save/record (with GLP metadata: time, date, operator, calibration info, sample ID), for very low conductivity (pure water <10 microS/cm): use flow-through cell or constant stirring; pure water is sensitive to CO2 absorption (measure quickly, use fresh sample; atmospheric CO2 increases conductivity to ~1 microS/cm), for high conductivity (seawater ~50 mS/cm, plating baths): use K=10 cell or dilute; ensure meter range covers sample), post-measurement (rinse cell thoroughly with DI water (remove sample residue), clean if fouled (general: DI rinse; scale: soak in mild acid (vinegar, 0.1 M HCl) then rinse; oil/grease: mild detergent or methanol; do NOT use abrasive on electrodes (damages platinum black); do NOT use strong oxidizers (bleach) on platinized cells), store cell (most cells store dry; some recommend storage in DI or KCl - follow manufacturer; never store in distilled water long-term? Actually conductivity cells are fine dry; polarized cells may need reconditioning), maintenance (daily: rinse after use, check calibration; weekly: clean cell (if industrial/wastewater - high fouling), inspect electrode (platinum black intact, no damage); monthly: full multi-point calibration, replace standards, cell constant verification; semi-annually/annually: professional calibration, cell replating (if platinized and worn), software update), troubleshooting (per conductivity meter: readings unstable/drifting (cell fouled (clean), air bubbles (remove), low battery/power, temperature fluctuation, CO2 absorption (pure water - measure quickly) - clean, remove bubbles, control temp, measure fast), readings too high (calibration error (wrong standard, temp mismatch), cell not rinsed (carryover), cell constant wrong (select correct K), TDS conversion factor wrong, ATC off - recalibrate, rinse, set cell constant, use correct TDS factor, enable ATC), readings too low (cell not fully submerged, air bubbles, cell constant too high (use K=0.1 for pure water), electrode fouled/plating worn (clean/replate), calibration at wrong range - submerge, remove bubbles, use correct cell, clean/replate, recalibrate), meter/touchscreen issues (frozen, unresponsive - restart, clean screen), and safety (ELECTRODE HAZARD (conductivity cell is relatively robust but glass-bodied cells can break - handle carefully; broken glass = cut hazard), CHEMICAL (calibration standards (KCl - low hazard, but avoid ingestion/eye contact; wear PPE), cleaning solutions (HCl, detergents - handle per SDS), samples (wastewater, chemicals, plating baths (acids, metal salts, cyanide, hexavalent chromium) - wear gloves, eye protection; some plating solutions are toxic - handle with care), WATER/ELECTRICAL (benchtop near water - do not spill on meter, proper grounding; do not immerse meter body (only cell)), do not store platinized cell dry for long (may need reconditioning: soak in KCl or apply voltage; follow manufacturer), do not use wrong cell constant (K=1 for pure water gives noisy/low readings; use K=0.1; K=0.1 for high conductivity gives out-of-range), for pure water/UPW: use proper technique (flow-through, fresh sample, avoid CO2), for pharma WFI: follow USP <645> stage 1 (uncompensated conductivity at measured temp, compare to table; do NOT use ATC for stage 1), report temperature with conductivity (even with ATC, report raw and compensated), for food/pharma: ensure cell is cleanable/food-grade, cross-contamination (rinse thoroughly between samples), for GMP: follow SOPs, document calibration/use, maintain user access/audit trail for 21 CFR Part 11) are important. See 3283 for detailed operation and conductivity fundamentals.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Calibration recommended: single-point check before each use or at start of day; full multi-point calibration (2-3 points) every 1-7 days depending on use (GMP/pharma = before each batch; clean lab = weekly/monthly). If cell is cleaned/replaced, meter dropped, or readings seem off, recalibrate immediately. For ISO 17025/GMP/pharma labs, follow applicable schedules and maintain records (calibration certificates, standard lot numbers, as-found/as-left data, cell ID, cell constant, user/operator). For pharmaceutical water conductivity (USP <645>), follow the three-stage test (no ATC for stage 1). Cell constant should be verified annually (with certified standard) - if cell constant drifts >2%, clean or replace cell. Temperature sensor should be calibrated periodically (ATC accuracy depends on temp sensor). For pure water/UPW monitoring, calibrate more frequently (low conductivity is hard to measure accurately; use fresh low-conductivity standard or verify with resistivity meter). Conductivity standards are stable (KCl solutions, sealed, traceable; once opened, use within period or prepare fresh - KCl absorbs moisture from air, so keep sealed). See 3283 for detailed calibration.

Q7: Are supporting consumables universal?

A: Conductivity cell (replacement - specific to meter brand/model (connector type, cell constant; use OEM or certified compatible with correct K value), calibration standards (KCl standards - universal from lab supply (Hanna, Hach, Oakton, Ricca) but use certified traceable; 1413 microS/cm, 12.88 mS/cm, 111.3 mS/cm common), storage solution (KCl, if needed), cleaning solutions, power supply (specific), and cell stand (benchtop) are available from lab supply companies, though cells and power supplies are often meter-specific (use OEM or certified compatible to maintain accuracy and warranty). Long-term consumable cost includes cell replacement (periodic, $100-$500+) and calibration standards (regular purchase, low cost).

Q8: Can I customize parameters or supporting accessories?

A: Customization includes cell constant (K=0.1 (for pure water/UPW, low conductivity <100 microS/cm), K=1 (general, 10 microS/cm to 200 mS/cm, most common), K=10 (for high conductivity, seawater, plating baths, >100 mS/cm)), parameters (conductivity only, or conductivity + TDS + salinity + resistivity + temperature), cell type (2-electrode (standard, glass/plastic body, platinum black or graphite), 4-electrode (better for high conductivity, less polarization, wide range), flow-through (for pure water/inline), conductivity + pH combined probe), form factor (benchtop (lab, touchscreen, high accuracy, power) - this is touchscreen; portable/field versions available separately), display/interface (color touchscreen (3.5-7 inch), graphical calibration, simultaneous display, method storage, data logging (1000-10000+ points), USB/Ethernet/WiFi/Bluetooth export, PC software, LIMS integration, GLP/GMP compliance (user ID/password, audit trail, electronic signatures, 21 CFR Part 11), alarms (calibration due, out-of-range), multi-language), accessories (extra cells (various K values), calibration standard kit (multiple values), storage/cleaning solutions, cell stand, stirrer, printer, spare power supply, validation/calibration certificate (ISO 17025), IQ/OQ package (for pharma/GMP), certifications (CE, FCC, ISO 9001, USP <645> compliance, 21 CFR Part 11), language and accessories. Additional cells, standards, and accessories can be ordered separately.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes touchscreen conductivity meter, conductivity cell, temperature probe, calibration standards (initial), power supply, cell stand, and instruction manual. On-site installation is not required for standard benchtop meters (unbox, connect cell, calibrate, use). On-site training is not included for standard orders but can be arranged at additional cost (for GMP/pharma/water utility teams on IQ/OQ, calibration, cell maintenance, 21 CFR Part 11 compliance, SOP development). Remote guidance provided. For GMP/pharma use: IQ/OQ and validation can be arranged. Always calibrate with fresh standards before use.

Q10: What types of samples are compatible with this equipment?

A: The touchscreen conductivity meter measures conductivity of various aqueous samples including drinking water, wastewater (influent/effluent), natural water (river, lake, groundwater, seawater), process water (industrial, cooling, boiler), pharmaceutical water (PW, WFI - note: WFI needs USP <645> protocol), food/beverage liquids (beer, wort, wine, juice, milk - may need dilution or specific cells for high particulate), chemical solutions (acids, bases, salts, plating baths - verify cell compatibility), environmental samples (stormwater, soil extract), and culture/media solutions. NOT compatible with: Non-aqueous liquids (oils, solvents, pure alcohol - conductivity is for aqueous/ionic; non-polar solvents have near-zero conductivity and may damage cell; some solvents can dissolve epoxy cell bodies), highly viscous samples without proper cell (can coat electrodes - clean promptly; dilute if needed), samples with high oil/grease (coats electrodes, causes drift - clean thoroughly; may damage epoxy), samples beyond meter range (very high conductivity >200 mS/cm (concentrated acids, brine) - use K=10 cell or dilute; very low <0.1 microS/cm (UPW) - use K=0.1 flow-through cell and specialized meter), samples that attack cell materials (verify compatibility of electrode (platinum, graphite) and body (epoxy, glass) with sample; HF etches glass; strong solvents may attack epoxy; use appropriate cell), and samples requiring specific ion identification (conductivity measures total ions, not individual species - use ion chromatography or ISE for specific ions). For samples with suspended solids: particles do not contribute to conductivity (unless ionic), but can foul cell - filter if needed or clean after. For plating baths: metal deposition on electrodes can occur - clean regularly, use 4-electrode cell. See 3283 for detailed sample compatibility and conductivity fundamentals. IMPORTANT: This touchscreen conductivity meter is in the same product class as 3283 (Electrical conductivity tester) - both measure electrical conductivity of aqueous solutions. The key difference is the touchscreen interface and higher accuracy/features (GLP/GMP, data logging, multi-point calibration). For detailed fundamentals of conductivity measurement (what it is, how it works, temperature effects, TDS/salinity calculation, typical values, common errors, cell constant selection), refer to the 3283 entry which covers these in depth. The touchscreen/tablet conductivity meter is designed for laboratory use where accurate conductivity measurement with regulatory compliance documentation is needed. For field use, portable/handheld conductivity meters (with cable and probe) are more appropriate - this benchtop touchscreen unit is for lab bench use.