HANNA HI 98703 Turbidity Meter, EPA Compliant, HI98703

HANNA Instruments HI 98703 EPA Compliant Portable Turbidity Meter, HI98703

HANNA's new HI 98703 portable Turbidity Meter utilizes an EPA compliant tungsten light source and state-of-the-art optical system that allows consistently reliable and accurate measurements for turbidity. Users will appreciate the accuracy and sensitivity of this instrument, particularly at very low turbidity levels.

To meet EPA reporting requirements these instruments have an EPA compliance reading mode. HI 98703 meets all EPA requirements with regards to the Standard Methods for Turbidity Measurements. Turbidity is measured up to 1000 NTU. Depending on the measured sample and required accuracy, users can select normal measurement, continuous measurement or signal averaging. HI 98703 can be equipped with HANNA's (optional) Tag Identification System (TIS) which allows users to record the time and location of a specific measurement or series of measurements. Logged data can be downloaded to a PC through either USB or RS232 connections. Reliable performance of the instrument is validated using Hanna's exclusive Cal Check® system and our ready-made, NiST traceable chlorine standards. For turbidity, a two, three or four-point calibration is available using pre-set or user defined standards. Frequent Calibration isn't necessary as the system compensates for variations in the intensity of the light source. The instruments' Good Laboratory Practice functions allow traceability of calibration conditions including the time, date and last calibration points. At startup, the meter displays the percentage of remaining battery life. A 'low battery' warning message is also displayed on the LCD to avoid unexpected battery failure. This instruments is equipped with backlighting. The current date and time can be displayed on the LCD.

Range 0.00 to 9.99; 10.0 to 99.9 and 100 to 1000 NTU

Range Selection Automatic

Resolution 0.01 NTU from 0.00 to 9.99 NTU; 0.1 NTU from 10.0 to 99.9 NTU; 1 NTU from 100 to 1000 NTU

Accuracy ±2% of reading plus 0.02 NTU

Repeatability ±1% of reading or 0.02 NTU, whichever is greater

Stray Light < 0.02 NTU

Typical EMC Deviation ±0.05 NTU

Light Detection Silicon Photocell

Method Ratio Nephelometric Method (90°), ratio of scattered and transmitted light; Adaptation of the USEPA Method 180.1 and Standard Method 2130 B.

Measuring mode Normal, Average, Continuous

Turbidity Standards 1, 10, 100 and 750 NTU

Calibration Two, three or four-point calibration

Light Source Tungsten filament lamp

Lamp life Greater than 100,000 readings

Display 60 x 90 mm LCD with back light

Logging Memory 200 records

Serial Interface USB 1.1 or RS 232

Environment To 50°C (122°F); max 95% RH non-condensing

Power Supply (4) 1.5V AA alkaline batteries or AC adapter

Auto Shut-off After 15 minutes of non-use

Dimensions 224 x 87 x 77 mm (8.8 x 3.4 x 3.0”)

Weight 512 g (18 oz.)



HI 98703 is supplied with: • Five Sample Cuvets and Caps • Calibration Cuvets (HI 98703-11) • Silicone Oil (HI 93703-58) 𔄲 Tissue for wiping the cuvets • Five Tag holders with Tags (HI 920005) • Batteries (4 pcs.) • AC Adapter • Instruction Manual • Instrument Quality Certificate • Rigid Carrying Case