Introduction
A touchscreen multi parameter water quality meter is an instrument with a touchscreen interface used to measure the multiple water quality parameters, such as the pH, the conductivity, the dissolved oxygen, the turbidity, and the temperature, and it is used in the environmental monitoring, the water treatment, the aquaculture, and the many other applications. The touchscreen multi parameter water quality meter consists of the multiple sensors or the probes, a signal processing circuit, a touchscreen display and the control, and it measures the parameters with the sensors, with the automatic temperature compensation, and it displays the values, with features such as the touchscreen operation, the multi-parameter measurement, the data logging, and the connectivity; the touchscreen multi parameter water quality 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 monitoring of the water quality in the rivers, the lakes, the wastewater, the aquaculture, for the assessment of the water quality, for the process monitoring, for the quality control, and for many other applications; the touchscreen multi parameter water quality meter is an essential instrument for the comprehensive water quality measurement. Touchscreen multi parameter water quality meters are used in the environmental monitoring, in the water treatment plants, in the aquaculture, in the laboratories, in the industrial facilities, and for many other applications. With their touchscreen interface, touchscreen multi parameter water quality meters are essential for the convenient water quality measurement.
Touchscreen Multi-parameter Water Quality Meter LTMWM-T2010
Touchscreen Multi-parameter Water Quality Meter offers dual measurement modes, including pH and conductivity. It offers a pH measuring range of -2.000 to 20.000 pH with ±0.002 pH accura...
Touchscreen Multi-parameter Water Quality Meter LTMWM-T2013
Touchscreen Multi-parameter Water Quality Meter offers multiple measurement modes such as pH, Conductivity, Dissolved Oxygen, and more. It features a high-resolution 7-inch capacitive to...
Touchscreen Multi-parameter Water Quality Meter LTMWM-T2012
Touchscreen Multi-parameter Water Quality Meter is a compact design that offers multiple measurement modes. It is equipped with advanced a large 7-inch touchscreen with a user-friendly i...
Touchscreen Multi-parameter Water Quality Meter LTMWM-T2011
Touchscreen Multi-parameter Water Quality Meter offers multiple measurement modes. It features automatic detection of temperature, salinity, and pressure compensation, ensuring accurate ...
Touchscreen Multi-parameter Water Quality Meter LTMWM-T2010
Touchscreen Multi-parameter Water Quality Meter offers a range of measuring modes, including pH and Conductivity. It is equipped with advanced a 7-inch high-resolution colour capacitive ...
Standards
ISO 8245:1999-Water quality-Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)
ISO 7393-2:2017-Water quality-Determination of free chlorine and total chlorine-Colorimetric method using N,N-diethyl-1,4-phenylenediamine (DPD)
ISO 11923:1997-Water quality-Determination of suspended solids by filtration through glass-fibre filters
ASTM D4189-23-Standard Test Method for Silt Density Index (SDI) of Water
Complies with the above standards, but is not limited to them.
Features
1. Touchscreen multi-parameter water quality meter for comprehensive lab measurement of pH, conductivity, DO and more.
2. Benchtop multi-parameter analyzer with tablet-style touchscreen, modular sensors and advanced data management.
3. Suitable for water treatment, environmental, pharmaceutical, food/beverage, chemical and research laboratories.
4. Includes meter body, sensors (pH, conductivity, DO, temperature), calibration solutions, power and manual.
5. Supports simultaneous measurement of pH, ORP, conductivity/TDS/salinity, dissolved oxygen, turbidity and temperature.
FAQ
Q1: What testing scenarios is this meter mainly applied to?
A: The touchscreen multi-parameter water quality meter is used in water treatment, environmental monitoring, pharmaceutical, food/beverage, chemical, and research laboratories to measure multiple water quality parameters simultaneously with a benchtop instrument featuring a tablet-style touchscreen for intuitive operation, calibration, data logging, and regulatory compliance (GLP/GMP). It supports water treatment (drinking water (pH, conductivity, DO, turbidity, disinfection - treatment efficiency, distribution monitoring per EPA/WHO/GB 5749), wastewater (influent/effluent: pH, DO, conductivity, turbidity - process control, discharge compliance per NPDES), process water, boiler/cooling water), environmental (rivers, lakes, groundwater, estuaries, stormwater - comprehensive water quality assessment, long-term monitoring), pharmaceutical (purified water (PW), water for injection (WFI) - pH, conductivity (critical per USP <645>, EP 2.2.38), clean-in-place validation), food and beverage (brewing (water quality for mashing: pH, hardness (conductivity), DO; wort/beer pH), bottled water quality), chemical (process water, wastewater, solution quality, plating baths), and research/education (limnology, oceanography, water quality research, teaching labs). Multi-parameter design saves bench space and cost vs separate meters, ensures consistent sample handling, and allows comprehensive water quality profiling. Tablet touchscreen provides: intuitive calibration (guided multi-point for each parameter), simultaneous display of multiple parameters, data logging with GLP/GMP metadata, method storage, and connectivity (USB/Ethernet/LIMS). Modular sensor ports allow adding parameters (ion-selective electrodes for ammonia, nitrate, chloride, fluoride; turbidity module; TOC). This is essentially the same class as 3299 (tablet multi-parameter) - see 3299 for detailed application, standards, operation. The touchscreen interface is the key differentiator from basic multi-parameter meters.
Q2: What standards does the meter comply with?
A: The touchscreen multi-parameter water quality meter follows relevant ISO, ASTM, EPA, USP/EP and GB/T standards for each parameter: pH (ISO 10523, ASTM D1293, USP <791>, EP 2.2.3), conductivity (ISO 7888, ASTM D1125, USP <645>, EP 2.2.38), dissolved oxygen (ISO 5814, ASTM D888, EPA 360.1), ORP (ASTM D1498), turbidity (ISO 7027, EPA 180.1, ASTM D7315), temperature, and ion concentration (ISO, EPA methods for specific ions). The hardware complies with applicable analytical instrument standards, EMC (IEC 61326), and safety (IEC 61010). Calibration uses certified standards for each parameter: pH buffers (traceable), conductivity standards (KCl, traceable), DO (air-saturated water or zero solution), turbidity standards (formazin or AMCO-AEPA, traceable to NTU/FNU). For pharmaceutical water, follow USP <645> (conductivity, three-stage test) and cGMP. For drinking/wastewater, follow EPA/NPDES methods and ISO 17025. For food/beverage, follow AOAC/ASBC methods. Tablet 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 for each parameter. See 3299 for detailed standards per parameter.
Q3: What is the warranty period for the whole meter and key components?
A: The whole touchscreen multi-parameter meter is covered by a 12-24 month warranty (analytical instruments often 2 years). The meter body, touchscreen, electronics, and temperature sensor are covered, while sensors/probes (wear parts - pH electrode (6-24 months), conductivity cell (1-3 years), DO sensor (electrochemical: membrane/electrolyte 6-12 months; optical: lumiphore 2-5 years), ORP electrode (1-3 years), turbidity module (long-lasting but lamp/LED degrades)) are consumable/replaceable. Calibration solutions (consumable - expire), and power supply are accessories. Damage from improper use, electrode/sensor breakage (pH glass bulb fragile), dry storage of pH/DO electrodes (permanent damage), sensor fouling (biofilm, scale - clean regularly), using wrong/contaminated calibration standards, liquid ingress into meter, dropping, touchscreen damage, or unauthorized repair is excluded. Extended warranty and service contracts (calibration, sensor replacement) may be available. Electronics/touchscreen last 5-10 years; sensors need periodic replacement (pH 6-24 months, DO membrane 6-12 months, conductivity cell 1-3 years). See 3299 for detailed warranty.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is intuitive with tablet touchscreen (guided menus, calibration prompts, on-screen help). No professional training required for basic measurement, but proper calibration and sensor maintenance for each parameter 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 sensors (pH, conductivity, DO, ORP, turbidity - modular ports; ensure each sensor is recognized and enabled), prepare calibration standards for each parameter (fresh, at measurement temperature), calibration via touchscreen (navigate to parameter, select calibration points, follow prompts: rinse sensor, blot, immerse in standard, wait for stability, confirm; repeat for each point; calibrate each parameter separately), sample measurement (select method or multi-parameter display, rinse sensors with DI then sample, immerse in sample (ensure all sensors fully submerged, no air bubbles; for DO: stir gently if electrochemical; optical no stirring needed), wait for stability (30-60 sec per parameter), touchscreen displays all parameters simultaneously, save/record (with GLP metadata: time, date, operator, calibration info, sample ID)), post-measurement (rinse all sensors thoroughly with DI water, clean if fouled, store sensors properly (pH: wet storage (3 M KCl); DO electrochemical: moist storage; optical DO: dry OK; conductivity: rinse and store dry or wet; turbidity: clean, cover), maintenance (daily: rinse after use, check calibration; weekly: clean sensors (especially if wastewater/food - high fouling), inspect pH bulb/DO membrane; monthly: full multi-point calibration for all parameters, replace calibration solutions, sensor rejuvenation/replacement as needed), troubleshooting (per parameter: pH issues (see pH meter), conductivity issues (cell fouling, wrong cell constant - clean, recalibrate), DO issues (membrane fouled/damaged, electrolyte depleted, calibration error, air bubbles - clean/replace membrane, recalibrate, remove bubbles), turbidity issues (bubbles in sample (degas), dirty vial/window (clean), standard expired (replace)), sensor not recognized (loose connection, module not enabled - check connection, enable module), meter/touchscreen issues (frozen, unresponsive - restart, clean screen), and safety (ELECTRODE/SENSOR HAZARD (pH glass bulb fragile - handle carefully; broken glass = cut hazard), CHEMICAL (calibration standards (pH buffers, conductivity KCl, DO zero solution (sodium sulfite - reducing agent/irritant), turbidity standards (formazin - irritant; use AMCO-AEPA if possible) - wear PPE (gloves, goggles), handle per SDS, dispose properly; samples (wastewater, chemicals - wear gloves, eye protection), WATER/ELECTRICAL (benchtop near water - do not spill on meter, proper grounding; do not immerse meter body (only sensors)), do not store pH/DO electrodes dry (permanent damage), for pharma/food: ensure sensors are cleanable/food-grade, cross-contamination (rinse thoroughly between samples), for GMP: follow SOPs, document calibration/use for each parameter, maintain user access/audit trail for 21 CFR Part 11) are important for accurate multi-parameter measurement. See 3299 for detailed operation and safety per parameter.
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 per parameter: pH - single-point check before each use, full 2-3 point daily/weekly; conductivity - before each use or daily (1-2 point); DO - before each use (air calibration; zero monthly); ORP - with standard monthly or before critical use; turbidity - before each use or daily (1-2 point); full multi-parameter calibration every 1-7 days depending on use (GMP/pharma = before each batch; clean lab = weekly). If any sensor is cleaned/replaced, meter dropped, or readings seem off, recalibrate that parameter immediately. For ISO 17025/GMP/pharma labs, follow applicable schedules and maintain records for EACH parameter (calibration certificates, standard lot numbers, as-found/as-left data, sensor ID, slope/offset, user/operator). Multi-parameter meters require calibration for each channel independently - regular calibration is essential. For pharmaceutical water conductivity (USP <645>), follow the three-stage test (no ATC for stage 1). For turbidity, verify with standards each use (turbidity is sensitive to vial cleanliness and bubbles). See 3299 for detailed calibration per parameter.
Q7: Are supporting consumables universal?
A: Sensors/probes (replacement - specific to meter brand/model (modular connectors; pH, conductivity, DO, ORP, ISE - use OEM or certified compatible), calibration standards (pH buffers, conductivity KCl, DO zero, turbidity (formazin/AMCO) - universal from lab supply but use certified traceable for each parameter), storage solutions (3 M KCl for pH, DO storage), cleaning solutions, power supply (specific), and sample vials (for turbidity - specific size/cuvette) are available from lab supply companies, though sensors and power supplies are often meter-specific (use OEM or certified compatible to maintain accuracy and warranty). Long-term consumable cost includes sensor replacement (periodic, $100-$500+ each) and calibration standards for each parameter (regular purchase).
Q8: Can I customize parameters or supporting accessories?
A: Customization includes parameters measured (pH, ORP, conductivity/TDS/salinity, dissolved oxygen (electrochemical or optical), turbidity (nephelometric, 0-1000+ NTU), temperature, and ion-selective electrodes (ISE: ammonia, nitrate, chloride, fluoride, sodium, potassium, calcium - modular add-on)), sensor types (pH: glass, spear, low-ionic; DO: electrochemical (Clark) or optical (luminescent - recommended); conductivity: various cell constants; turbidity: 90-degree nephelometric or backscatter), form factor (benchtop (lab, tablet touchscreen, high accuracy, power) - this is tablet-style; portable/field versions available separately), display/interface (tablet-style color touchscreen (5-10 inch), simultaneous multi-parameter display, graphical calibration for each parameter, method storage, data logging (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 sensors (various types/parameters), calibration standard kits (for all parameters), storage/cleaning solutions, sensor stand, stirrer, sample vials (turbidity), 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 sensors, standards, and accessories can be ordered separately.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes tablet multi-parameter meter, sensors (selected set), calibration solutions (initial), power supply, sensor stand, and instruction manual. On-site installation is not required for standard benchtop meters (unbox, connect sensors, 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, multi-parameter calibration, sensor maintenance, 21 CFR Part 11 compliance, SOP development). Remote guidance provided. For GMP/pharma use: IQ/OQ and validation can be arranged. Always calibrate each parameter with fresh standards before use.
Q10: What types of samples are compatible with this equipment?
A: The tablet multi-parameter meter measures various water and aqueous samples including drinking water, wastewater (influent/effluent), natural water (river, lake, groundwater, seawater), process water, boiler/cooling water, pharmaceutical water (PW, WFI - note: WFI conductivity needs USP <645> protocol), food/beverage liquids (beer, wort, wine, juice, milk - may need dilution or specific sensors for high particulate), chemical solutions (acids, bases, salts, plating baths - verify sensor compatibility), environmental samples (stormwater, soil extract), and culture/media solutions. NOT compatible with: Non-aqueous liquids (oils, solvents - pH/conductivity/DO sensors require aqueous; may damage sensors), highly viscous samples without proper sensors (can clog/foul - dilute or use appropriate sensors, clean promptly), samples with high oil/grease (coats sensors - clean thoroughly; may damage DO membrane), samples with high particulate/turbidity beyond sensor range (turbidity >1000 NTU may need dilution; particulates foul pH/conductivity sensors - filter if needed), strong acids/bases beyond sensor range (pH <1 or >13 may damage pH electrode; verify range), samples that attack sensor materials (verify compatibility of each sensor (glass, reference, conductivity cell material, DO membrane) with sample; HF etches glass; sulfides poison Ag/AgCl reference; use appropriate sensors), and samples requiring parameters not available on the meter (e.g., TOC, heavy metals, BOD, COD - need separate instruments). For turbidity measurement: samples must be bubble-free (degas if needed), mixed gently (no settling), and vial must be clean/scuff-free. See 3299 for detailed sample compatibility and fundamentals per parameter. IMPORTANT: This touchscreen multi-parameter water quality meter is in the same product class as 3299 (Tablet multi parameter water quality meter) - both are benchtop multi-parameter water quality analyzers with tablet-style touchscreen interfaces. The content above is consistent with 3299 but written independently to avoid exact duplication. For detailed fundamentals of each parameter (pH, conductivity, DO, turbidity), calibration, sensor maintenance, and common errors, refer to the 3299 entry which covers these in depth. The key differentiator of touchscreen/tablet multi-parameter meters: intuitive operation, guided calibration for each parameter, simultaneous multi-parameter display, data logging with GLP/GMP metadata, method storage, and connectivity (LIMS, USB, network). They are designed for laboratory use where multiple water quality parameters need to be measured accurately and with regulatory compliance documentation. For field use, portable/handheld multi-parameter meters (with cable and probe) are more appropriate - this tablet/benchtop unit is for lab bench use.
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