Remove the instrument from the packing material and examine
it carefully. If any damage has occurred during shipment,
immediately contact your local Hanna Instruments Office.
The meter is supplied with:
•
HI1293D
pH-electrode
• temperature probe (fixed)
• pH4.01 and pH7.01 buffer solutions (20 mL each)
• 12 Vdc power adapter and instructions
• quality certificate
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
PRELIMINARY EXAMINATION
HI991401
indicator features a large, dual-level backlit LCD to
give istantaneous readings of both pH and temperature, even
from a distance.
This waterproof indicator has been specially designed to meet
the grower’s need for equipment suited to the aggressive
environments of agricultural and hydroponics applications.
Measurements are highly accurate and the meter can be cali-
brated at one or two points. Low battery and battery changes
are no longer a problem thanks to a 12 Vdc power supply
included with the meter.
The
HI1293D
pH electrode & the temperature probe have been
molded with pipe thread (1/2’’ NPT), which allows the user to
attach them to an in-line system.
Moreover, the pH electrode has been specially designed to
guarantee greater clogging resistance in fertilizer solutions with
high concentrations of phosphate and nitrate.
GENERAL DESCRIPTION
FUNCTIONAL DESCRIPTION
SPECIFICATIONS
1. Liquid Crystal Display
2. ON/OFF/MODE button
3. Power supply connector
4. 12 Vdc power adapter
5.
HI1293D
pH electrode with differential input and pipe
thread 1/2’’ NPT
6. Temperature probe with pipe thread 1/2’’ NPT
(also working as matching pin for pH electrode)
7. DIN connector
8. SET/HOLD button
Dear Customer,
Thank you for choosing a Hanna Instruments product.
This manual will provide you with the necessary information
for a correct operation. Please read it carefully before using
the meter. If you need additional technical information, do not
hesitate to e-mail us at [email protected].
This instrument is in compliance with the
directives.
Instruction Manual
HI991401
Range
0.0 to 14.0 pH
0.0 to 60 ºC / 32.0 to 140 ºF
Resolution
0.1pH / 0.1 ºC / 0.1 ºF
Accuracy
@20 ºC/68 ºF
±0.1 pH / ±0.5 ºC / ±1 ºF
Typical EMC
Deviation
±0.1 pH / ±1 ºC / ±2 ºF
pH Calibration
Automatic, 1 or 2 point
with auto-buffer recognition
Temperature
Compensation
Automatic
Probes
HI1293D
pH electrode (included)
HI1294
temperature probe (fixed)
Power supply
12 Vdc power adapter (included)
Environment
0 to 50 ºC (32 to 122 ºF);
RH max 95% non-condensing
Dimensions
160 x 105 x 31 mm (6.2 x 4.1 x 1.2’’)
Weight
190 g (6.7 oz.)
OPERATIONAL GUIDE
Preliminary operations
Connect the pH electrode to the meter.
Connect the 12 Vdc adapter to the meter and to the mains;
the display will lit.
Press and hold the MODE button for 2-3 seconds. All the used
segments on the LCD will be visible for a few seconds.
To change the temperature unit
To change the temperature unit (from °C to °F), from measure-
ment mode, press and hold the MODE button until “TEMP”
and the current temperature unit are displayed on the lower
LCD (E.g. TEMP °C).
Use the SET/HOLD button to change the temperature unit, and
then press MODE button twice to return to normal measurement
mode.
To freeze the display
Press and hold the SET/HOLD button for 2-3 seconds, until
“HOLD” appears on the secondary display.
Press either button to return to normal mode.
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