The Hanna HI-98713 is an ISO-compliant portable turbidity meter that measures water quality with a 90° and 180° light detector ratio method. An algorithm calculates and converts the output in FNU, and the optical system consists of an infrared LED and two detectors.
The HI-98713 also compensates for variations in the intensity of the LED and incorporates complete GLP (Good Laboratory Practice) functions. The HI-98713 has a Fast Tracker - Tag Identification System (T.I.S.) that permits users to record the time and location of a measurement or series of measurements.
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 | ±2% of reading plus 0.1 FTU |
Repeatibility | ±1% of reading or 0.01 FTU, whichever is greater |
Stray Light | < 0.1 FTU |
Typical EMC Deviation | ±0.05 FTU |
Light Source | 860 nm infrared LED |
IR Detector | Silicon Photocell |
Method | Adaptation of ISO 7027, ratio method with 90° and 180° detectors |
Display | 60 x 90 mm LCD with backlight |
Standards | < 0.1, 15, 100 and 750 FTU |
Calibration | Two, three or four-point calibration |
Logging Memory | 200 records |
Serial Interface | RS232 and USB 1.1 |
Environment | 0 to 50°C (32 to 122°F); max 95% RH non-condensing |
Power Supply | 4 x 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.) |