The HI98190 professional waterproof portable pH/orp meter from Mediray delivers laboratory-grade precision in a compact, field-ready housing. Designed for demanding environments, this instrument combines intuitive operation with robust measurement performance for consistent, reliable data.
Engineered with advanced sensor technology and sealed circuitry, the HI98190 supports a wide range of analytical needs across water testing, research, and industrial process monitoring. The following sections detail its key capabilities, usage scenarios, and practical guidance.
| Model | Key Measurement Range | Accuracy | Display | Battery |
|---|---|---|---|---|
| HI98190 | pH: 0 to 14.00 pH; ORP: -1999 to +1999 mV | pH: ±0.01 pH; ORP: ±1 mV | Large LCD with backlight and operational icons | 4 x 1.5 V AA batteries with low-power indicator |
Robust Waterproof Housing For Demanding Conditions
The HI98190 professional waterproof portable pH/orp meter meets rigorous protection standards, allowing use in wet, dusty, or high-impact sites. Its sealed enclosure guards against accidental splashes and immersion, enabling worry-free operation during on-site inspections.
Field technicians and lab staff can confidently deploy the meter in challenging environments, knowing that the enclosure is designed to maintain sensor integrity and long-term reliability under demanding conditions.
Intuitive Interface And Calibration Procedures
Single-button calibration and guided prompts simplify setup, reducing training time and minimizing user error. Clear on-screen instructions walk through electrode conditioning, standard selection, and confirmation steps.
Automatic temperature compensation ensures that pH readings remain accurate across varying sample temperatures, supporting compliance with methodical measurement protocols in research and quality control workflows.
Comprehensive Measurement And Data Management
Measurement Modes And Stability
The HI98190 offers dedicated pH and ORP modes with configurable units, hold functions, and numeric readouts that remain stable for precise documentation. The backlit display ensures readability in low-light situations, supporting continuous operation.
Electrode Compatibility And Maintenance
Designed to work with replaceable pH and ORP sensors, the meter facilitates straightforward maintenance schedules. Users can swap electrodes in the field without specialized tools, reducing downtime and extending system longevity.
Portable Design And Field Deployment
Compact and lightweight, the HI98190 fits easily into toolkits, instrument cases, or handheld arrays for mobile testing teams. The ergonomic grip and balanced layout support extended use without fatigue during surveys or inspections.
Integrated battery compartments with clear indicators help prevent operational interruptions, while protective caps safeguard connectors when the instrument is transported between locations.
Professional Use Recommendations
- Perform daily calibration checks to maintain measurement accuracy.
- Store electrodes in proper storage solution to preserve response time and membrane condition.
- Rinse the probe with clean sample water between measurements to prevent cross-contamination.
- Use protective caps during transport to avoid damage to connectors and threads.
- Monitor battery status and replace cells promptly to prevent unexpected shutdowns.
FAQ
Reader questions
What environments is the HI98190 waterproof portable pH/orp meter suitable for?
The HI98190 is suitable for field water testing, environmental monitoring, industrial process checks, and laboratory use where robust, portable measurement is required.
How often should I calibrate the meter and replace the electrodes?
Calibrate before each shift or at least daily during continuous use; replace electrodes based on performance drift, typically every one to three months for regular field work.
Can I use this meter with temperature probes for automatic compensation?
Yes, the meter supports automatic temperature compensation when used with compatible temperature probes, improving pH accuracy across varying sample temperatures.
What is the battery life and how do I replace the batteries?
Operation time varies with usage and temperature; replace batteries when the low-power indicator appears, using standard AA cells and following the polarity guide on the battery compartment.