Hanna HI9813-61 pH/EC/TDS/Temperature meter with CAL Check

Description

A Comprehensive Overview Of The HI9813-61 Meter

The Hanna HI9813-61 is a portable, water-resistant meter designed for measuring pH, EC (Electrical Conductivity), TDS (Total Dissolved Solids), and temperature. This versatile instrument is supplied with a multi-parameter probe, the HI1285-61, which integrates all three sensors—pH, EC/TDS, and temperature—into a single, durable polypropylene body. The meter is engineered for ease of use, featuring dedicated keys for different measurement modes and on-screen tutorial messages that guide the user through calibration and measurement processes. Its large LCD displays readings with clarity, and a battery-level indicator ensures you are always aware of the power status. The HI9813-61 is particularly well-suited for applications in hydroponics, greenhouses, farming, and ground water, making it a valuable tool for professionals and enthusiasts in these fields.

Understanding The Multi-Functionality Of The HI9813-61

The core strength of the HI9813-61 meter lies in its ability to perform multiple critical measurements with a single device. The pH readings are displayed with a 0.1 resolution and an accuracy of ±0.1 pH. EC and TDS measurements are also highly precise, with resolutions of 0.01 mS/cm and 1 ppm (mg/L), respectively, and an accuracy of ±2% of full-scale. An impressive feature is its automatic temperature compensation, which adjusts all readings for variations in temperature, ensuring accuracy from 0 to 70°C. The EC to TDS conversion factor is automatically adjusted from 0.56 to 0.78 based on the actual EC readings, adhering to the 442 curve for natural water.

Detailed Look At The Included HI1285-61 Probe

The HI9813-61 comes with the HI1285-61 probe, a key component that houses three sensors in one body. The probe features an amplified pH electrode with a built-in amplifier that significantly reduces the effects of electrical noise from common sources like motors, ballasts, or pumps, which are frequently encountered in greenhouse environments. The EC/TDS readings are taken using an amperometric sensor, where an alternating voltage is applied to two stainless-steel prongs, and the resulting current is used to determine the conductivity and total dissolved solids. The built-in NTC thermistor sensor ensures that temperature variations are automatically compensated for, providing reliable measurements.

Calibration And Maintenance For Optimal Performance

For the highest accuracy, frequent calibration of the HI9813-61 is recommended. The pH range should be recalibrated whenever the electrode is replaced, at least once a month, or after testing aggressive chemicals. The meter is calibrated manually using knobs for a single point, with pH calibrated to pH 7.01 and EC/TDS calibrated to either 1.41 mS/cm or 1500 ppm. Proper maintenance is essential for long-term accuracy and probe life. This includes periodic cleaning of the EC sensor with a mild, non-abrasive detergent and soaking the pH electrode in a storage solution to keep the glass bulb and junction moist.

Specific Applications Of The HI9813-61 Meter

The HI9813-61 meter is an essential tool for various specialized applications. It is particularly valuable in hydroponics, where precise control of nutrient solutions is critical for plant health and growth. Monitoring the pH and EC/TDS levels of the nutrient solution ensures that plants can absorb nutrients effectively. In greenhouses, the meter helps manage water quality for irrigation, ensuring that the soil and plants receive the right balance of minerals and have optimal conditions for growth. For farming, it can be used for spot-checking soil and water quality, providing quick insights into the health of crops and irrigation sources. In ground water applications, the meter is used to measure the quality of water sources by checking parameters such as pH and total dissolved solids, which are crucial for environmental monitoring and analysis. The meter’s rugged, portable design makes it suitable for fieldwork in these environments.

CAL Check™ And Other Unique Features

The HI9813-61 model features the unique CAL Check™ functionality. This feature allows the user to quickly check the meter’s calibration status by immersing the probe in a specific calibration check solution and pressing the “Check” key. The meter will then display “Probe is OK” if it is calibrated or “Clean Probe and Calibrate” if maintenance is required. This provides an instant way to ensure measurement reliability without a full calibration process. Another key feature is the meter’s auto shut-off function, which turns the device off after 8 minutes of non-use to conserve battery life. This helps to maximize the battery’s approximately 150 hours of continuous use.

Product Reliability And Comprehensive Warranty

Hanna Instruments stands by the quality of the HI9813-61, offering a two-year warranty against defects in workmanship and materials. The probes, as a consumable item, are guaranteed for six months. This warranty is limited to repair or replacement and does not cover damage from accidents, misuse, or lack of prescribed maintenance. Hanna Instruments is a reputable name in the industry, and the HI9813-61 conforms to CE European Directives, ensuring it meets high safety and environmental standards. Furthermore, the meter is designed to be water resistant, providing durability in the field.

Purchasing Information And Secure Delivery

The HI9813-61 meter, a hallmark of reliable and precise measurement, is available for purchase from trusted online retailers. For unparalleled service and guaranteed product authenticity, look no further than the online store tpt24, renowned as the world’s foremost online destination for this product. tpt24 ensures that every order is handled with the utmost care, delivering the HI9813-61 with a steadfast guarantee of its quality and authenticity. No matter your location, whether you are in a bustling city or a remote rural area, tpt24 provides secure and efficient delivery, ensuring your product arrives safely and ready for immediate use.