HI98713, Portable Turbidity Meter

The HI 98713 meets and exceeds the requirements of the ISO 7027 for water quality and provides a reliable and accurate readings on low turbidity values. An effective algorithm calculates and converts the detectors output in FNU. Depending on the needed accuracy, normal, continuous, or signal averaging can be selected. The optical system. The Infrared Method (ISO 7027), consists of a infrared LED and two detectors (scattered and transmitted light), that assures long term stability and minimizes stray light and color interferences. HI 98713 also compensates for variations in intensity of the LED, minimizing the need for frequent calibration. This instrument incorporates complete GLP (Good Laboratory Practice) functions that allow traceability of the calibration conditions. The last calibration points, time and date can be checked at the touch of a button. With it’s logging function, up to 200 measurements along with it’s tagged locations can be stored in internal memory and consulted at any time. Data can be later transferred to a PC via RS232 or USB interface and HANNA HI 92000 software (optional). For advanced field applications, the HI 98713 is equipped with Fast Tracker Tag Identification System (T.I.S.) that makes data collecting and management simpler than ever. Fast Tracker allows users to record the time and location of a specific measurement or series of measurements. Features: – Two, three or four point calibration- USB and RS 232 PC connectivity- Log up to 200 records- GLP Features- User friendly, backlit LCD display with guidance codes- Battery % on startup- Continuous current time on display

Specifications

– Range: 0.00 to 9.99 FTU/10.0 to 99.9 FTU/100 to 1000 FTU – Range Selection: Automatically – Resolution: 0.01 FTU from 0.00 to 9.99 FTU/0.1 FTU from 10.0 to 99.9 FTU/1 FTU from 100 to 1000 FTU – Accuracy at 25 C: ?2% of reading plus 0.1 FTU – Repeatibility: ?1% of reading or 0.01 FTU, whichever is greater – Stray Light: < 0.1 FTU - Light Source / Life: 860 nm infrared LED / greater than 100,000 readings - IR Detector: Silicon Photocell - Method: Adaptation of ISO 7027, ratio method with 90 and 180 detector. - Standards: < 0.1, 15, 100 and 750 FTU - Calibration: Two, three or four point calibration - Logging Memory: 200 records - PC Connectivity: USB or RS232 - Environment: 0 to 50 C (32 to 122 F); max 95% RH non-condensing - Power Supply : 1.5V AA alkaline batteries (4) or AC adapter; auto-off after 15 minutes of non-use - Dimensions / Weight: 224 x 87 x 77 mm (8.8 x 3.4 x 3.0") / 512 g (18 oz.)