Hanna Instruments HI 98713 - Manual (Page 6)

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DISPLAY DESCRIPTION
1) Battery icon. When it is ON, it shows that the instrument works on battery. When blinking,
the batteries are almost empty and need to be replaced.
2) Wait icon. It is displayed when the instrument performs an internal checkup.
3) Measurement icon. The icon shows the measuring scheme of the instrument.
4) LED icon. The LED icon is shown when the LED is turned on.
5) Four digit main display. The main display shows the turbidity value after one measurement.
Depending on the instrument working mode, other values or messages are displayed.
6) Measurement units. The turbidity is measured in FNU. When average or continuous mode is
selected, the “FNU” tag blinks for each new displayed value. For conversions in other units
see Measurement Units section.
7) AVG icon. When selected, the measurement will be taken in average mode. The “FNU” tag
will blink for each new displayed value.
8) Four digit secondary display. The secondary display shows the current time (if selected) or
other values/messages.
BEEPER
A beeper is used to make the user interface more friendly. An error or invalid key press is
signaled by a long beep. A confirmation beep is signaled by a short beep. The beeper is
selectable as ON or OFF in Setup Menu.
Range 0.00 to 9.99 FNU
10.0 to 99.9 FNU
100 to 1000 FNU
Range Selection Automatically
Resolution 0.01 FNU from 0.00 to 9.99 FNU
0.1 FNU from 10.0 to 99.9 FNU
1 FNU from 100 to 1000 FNU
Accuracy ±2% of reading plus 0.1 FNU
Repeatibility ±1% of reading or 0.01 FNU, whichever is greater
Stray Light < 0.1 FNU
Typical EMC Deviation ±0.05 FNU
Light Source 860 nm infrared LED
IR Detector Silicon Photocell
Method Adaptation of ISO 7027, ratio method with 90° and 180° detector.
Display 60 x 90 mm LCD with backlight
Standards < 0.1, 15, 100 and 750 FNU
Calibration Two, three or four point calibration
LOG 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.)
S P E C I F I C A T I O N S S P E C I F I C A T I O N S S P E C I F I C A T I O N S S P E C I F I C A T I O N S S P E C I F I C A T I O N S