Hanna HI98304 EC Tester (DiST 4) Waterproof Conductivity Meter

The Hanna HI98304 EC Tester (DiST 4) is a rugged, pocket-sized, waterproof electrolytic conductivity meter engineered specifically for water treatment professionals across the Sultanate of Oman who require dependable, high-range readings up to 20.00 mS/cm. Unlike lower-range testing instruments, this advanced device is built to handle demanding industrial and commercial applications, ensuring your purification systems operate at peak efficiency.

At just 17 mm thick, the DiST 4 retains the ergonomic, compact housing that makes it ideal for field technicians and plant operators. Whether you are conducting routine quality control on a commercial reverse osmosis system, monitoring boiler and cooling tower feed water, or testing industrial process streams, this tester delivers precise, repeatable results every time.

Key Features & Technical Capabilities

• High-Performance Amperometric Graphite Electrode: Unlike traditional steel-pin sensors, the graphite electrode resists oxidation and significantly reduces polarization effects, ensuring excellent linearity and long-term measurement repeatability.

• Exposed Temperature Sensor: Facilitates rapid, automatically compensated conductivity readings. The exposed design ensures the meter responds instantly to temperature fluctuations in the process water.

• Large Multi-Level LCD: Displays both electrical conductivity (EC) and temperature readings simultaneously, alongside critical stability indicators and calibration tags.

• Streamlined Two-Button Operation: Designed for simplicity in the field. One button controls power, while the other activates the automatic calibration protocol.

• Robust Waterproof Casing: Completely sealed against moisture, splashes, and accidental submersion, protecting the internal electronics in humid pump rooms and outdoor environments.

• Intelligent Power Management: A clear low-battery indicator alerts the user when less than 10% of the 250-hour battery life remains. The adjustable automatic shut-off feature (selectable at 8 minutes, 60 minutes, or disabled) preserves battery longevity.

Technical Specifications

Operational Guide: How to Calibrate and Use the DiST 4

Operating the Hanna HI98304 EC Tester is straightforward due to its intuitive user interface:

1. Measurement: Turn the meter on and submerge the exposed probe completely into the water sample. The multi-level LCD will display the EC value and temperature concurrently. Wait for the stability icon to disappear, confirming the reading has settled.

2. Calibration: Press the dedicated calibration button while dipping the probe into a fresh 12.88 mS/cm calibration standard solution. The device automatically recognizes the standard, stabilizes, and stores the calibration point without requiring any manual adjustment.

3. Advanced Settings: The setup button located inside the battery compartment allows technicians to toggle the temperature display between Celsius and Fahrenheit and adjust the automatic shut-off timing parameters.

Scope of Supply & Maintenance

Included in the Box:

• Hanna HI98304 DiST 4 Waterproof EC Tester

• CR2032 3V Lithium battery (pre-installed)

• Initial calibration solution sachets (12.88 mS/cm)

• Protective storage and transport sleeve

• Manufacturer quality certificate and comprehensive instruction manual

Not Included:

• Bulk 12.88 mS/cm calibration standard bottles (available separately)

• On-site maintenance or calibration services

Maintenance Advisory: To maintain accuracy, rinse the graphite probe thoroughly with clean, purified product water (RO permeate or DM water) after each use to remove residual mineral deposits. Keep the tester stored securely within its protective sleeve when not in use.

Frequently Asked Questions

Can the Hanna HI98304 be used for low-conductivity drinking water?

It can be used; however, its 0.00 to 20.00 mS/cm range is heavily optimized for higher mineral concentrations. For standard tap water or ultra-pure drinking water applications, a lower-range model like the DiST 3 offers a finer resolution.

Is the DiST 4 completely waterproof?

Yes. The entire outer casing is sealed against ambient humidity, water splashes, and accidental submersion, ensuring complete reliability during field operations in Muscat and the wider Oman region.

How frequently should the meter be calibrated?

For standard corporate and industrial applications, calibrating the device every few weeks using a fresh 12.88 mS/cm standard is sufficient. For high-frequency testing environments or strict compliance auditing, weekly calibration is recommended.

Order From UV Water Systems

UV Water Systems carries the Hanna HI98304 EC Tester alongside an extensive inventory of water quality testing instruments, replacement components, and customized reverse osmosis solutions. If you require assistance selecting the correct testing meter for your specific target conductivity ranges, our engineering team is available to assist.

Uniqueness View LLC (UV Water Systems)

ISO 9001:2015 Certified Water Treatment Specialists * Location: Muscat, Sultanate of Oman

• Inquiries: Contact our office directly for current line-item pricing, formal commercial quotes in Omani Rial (OMR), or local delivery options.