Hanna Instruments HI 83749 - Manual (Page 7)

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Range 0.00 to 9.99 NTU
10.0 to 99.9 NTU
100 to 1200 NTU
Range Selection Automatically
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 1200 NTU
Accuracy ±2% of reading plus 0.05 NTU
Repeatibility ±1% of reading or 0.02 NTU, whichever is greater
Stray Light < 0.05 NTU
Light Source Tungsten filament lamp
Light Detector Silicon Photocell
Method Ratio Nephelometric Method.
Display 60 x 90mm backlit LCD
Calibration Two, three or four points calibration
LOG Memory 200 records
Serial Interface RS232 or 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.)
SPECIFICATIONS
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SET INSTRUMENT ID
The instrument ID is a four digit number that can
be edited by the user. The instrument ID is
downloaded on the PC application, together with
the logged data. By setting a different ID for each
instrument it is possible to mix information from
many turbidimeters into the same database.
• To set the instrument ID, press CAL/RCL when
the “Set instrument ID” panel is displayed.
The default instrument ID is 0000. The existing
ID value and the CFM tag will start blinking.
• Press the UP or DOWN keys to set the new
instrument ID. By pressing and holding the UP
or DOWN keys, the changing speed wil increase.
• Press LOG/CFM to save the change. The new
instrument ID will be displayed.
Alternatively, press CAL/RCL to exit without
saving the changes.
SET BAUD RATE
The HI 83749 has a RS232 and a USB link. When
the USB connection is used, the RS232 connection
becomes inactive.
To successfully communicate with the PC, the same
baud rate must be selected on the instrument and
on the PC application. The available baud rates are
1200, 2400, 4800 and 9600.
• To set the baud rate, press CAL/RCL when the
“Set baud rate” panel is displayed.
The parameter value and the CFM tag will start
blinking.
• Press the UP or DOWN keys to select the new
baud rate value.
• Press LOG/CFM to save the change. The new
selected baud rate will be displayed.
Alternatively, press CAL/RCL to exit without
saving the changes.
or
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