WARRANTY
HI 991401
is
warranted for two years
against defects in workmanship
and materials when used for their intended purpose and maintained accord-
ing to instructions.
Electrodes and probes are warranted for six months
.
This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed mainte-
nance are not covered.
If service is required, contact the dealer from whom you purchased the instru-
ment. If under warranty, report the model number, date of purchase, serial
number and the nature of the failure. If the repair is not covered by the
warranty, you will be notified of the charges incurred. If the instrument is to be
returned to Hanna Instruments, first obtain a Returned Goods Authorization
Number from the Customer Service department and then send it with ship-
ment costs prepaid. When shipping any instrument, make sure it is properly
packaged for complete protection.
All rights are reserved. Reproduction in whole or in part is prohibited with-
out the written consent of the copyright owner.
Remove the instrument from the packing material and exam-
ine it carefully. If any damage has occurred during shipment,
immediately notify your dealer or the nearest Hanna Customer
Service Center.
The meter is supplied with:
•
HI 1293D
pH-electrode
• temperature probe (fixed)
• pH 4.01 and pH 7.01 buffer solutions (20 mL each)
• 12 Vdc power adapter and instructions
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
HI 991401
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
calibrated 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
HI 1293D
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
Recommendations for Users
Before using this product, make sure that it is entirely suitable for the
environment in which it is used. Operation of this instrument in residential
areas could cause unacceptable interferences to radio and TV equipment.
The glass bulb at the end of the electrode is sensitive to electrostatic dis-
charges. Avoid touching this glass bulb at all times. During operation, ESD wrist
straps should be worn to avoid possible damage to the electrode by electro-
static discharges.
Any variation introduced by the user to the supplied equipment may degrade
the instrument’s EMC performance.
To avoid electrical shock, do not use this instrument when voltages at the
measurement surface exceed 24 Vac or 60 Vdc.
To avoid damages or burns, do not perform any measurement in microwave
ovens.
Range
0.0 to 14.0 pH
0.0 to 60ºC / 32.0 to 140ºF
Resolution
0.1 pH / 0.1ºC / 0.1ºF
Accuracy
(@20ºC/68ºF)
±0.1 pH / ±0.5 ºC / ±1ºF
Typical EMC Deviation
±0.1 pH / ±1ºC / ±2 ºF
pH Calibration
Automatic, 1 or 2 point
with auto-buffer recognition
Temperature Compensation
Automatic
Probes
HI 1293D
pH electrode (included)
HI 1294
temperature probe (fixed)
Power supply
12 Vdc power adapter (included)
Environment
0 to 50ºC (32 to 122ºF);
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.)
1. Liquid Crystal Display
2. ON/OFF/MODE button
3. Power supply connector
4. 12 Vdc power adapter
5.
HI 1293D
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
w w w . h a n n a i n s t . c o m
Instruction Manual
(HI 991401)
Hanna Instruments reserves the right to modify the design, construction and
appearance of its products without advance notice.
Dear Customer,
Thank you for choosing a Hanna 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
.
This instrument is in compliance with the directives.
IST991401R2 07/05
