Hanna Instruments HI 981401N - Manual

Instruction Manual
(HI 981401N)
Water-resistant
pH Monitor with Large LCD
w w w . h a n n a i n s t . c o m
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
WARRANTY
HI 981401N is warranted for two years against defects in work-
manship and materials when used for their intended purpose and
maintained according to instructions. The electrodes are warranted
for a period of six months. This warranty is limited to repair or
replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed
maintenance are not covered.
If service is required, contact the dealer from whom you purchased the
instrument. If under warranty, report the model number, date of pur-
chase, 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 de-
partment and then send it with shipment costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protec-
tion.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner.
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 [email protected].
This instrument is in compliance with the directives.
Remove the instrument from the packing material and
examine 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 1286 pH electrode
• HI 1283 grounding probe
• pH 4.01 and 7.01 buffer solutions (20 mL each)
• Calibration screwdriver
• 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 981401N is a pH meter specially designed to meet the
needs of growers in greenhouses and hydroponic applica-
tions. It is equipped with a large LCD for easy-to-read
measurements even from a distance.
The housing has been completely sealed against vapors and
humidity.
The HI 1286 gel-filled pH electrode is interchangeable and
the BNC connector is protected behind a waterproof sheath.
The meter is also supplied with a stainless steel probe to
prevent potential grounding problems and thus ensuring
longer life for your electrode. The electrode has been de-
signed for use in fertilizer solutions with high concentration
of phosphate and nitrate.
You can simply hang the meter right above the sample to
be tested for continuous measurement, and it will run
without interruption on 12 Vdc power supply.
Measurements are highly accurate and the meter can be
calibrated at one or two points.
GENERAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1. Molded eye
2. “pH 4” calibration trimmer
3. BNC connector
4. HI 1283 stainless steel grounding probe
5. HI 1286 pH electrode
6. 12 Vdc power adapter
7. Power supply connector
8. Protective sheath
9. “pH 7” calibration trimmer
10. Liquid Crystal Display (LCD)
OPERATIONAL GUIDE
pH ELECTRODE CONNECTION & MAINTENANCE
In order to protect the meter against
vapors and humidity, the BNC connector
is protected with a waterproof sheath.
• Slide the protective sheath down, connect the HI 1286
pH electrode to the BNC connector and then slide the
protective sheath back up. Since the protective sheath is
rubberized, to ensure maximum waterproof protection,
make sure the connector is completely covered.
• Do not be alarmed if white crystals appear around the
electrode protective cap. This is normal with pH elec-
trodes and they dissolve when rinsed with water.
• When not in use, rinse the electrode with water and store
it with a few drops of storage (HI 70300) or pH7
(HI 7007) solution in the protective cap.
SPECIFICATIONS
Range 0.0 to 14.0 pH
Resolution 0.1 pH
Accuracy (@ 25°C/77°F) ±0.2 pH
Typical EMC Deviation ±0.1 pH
Calibration Manual with two trimmers
for offset and slope
Probes HI 1286 pH electrode (included)
and HI 1283 grounding probe (fixed)
Casing IP54
Power Supply 12 Vdc adapter (included)
Dimensions 86 x 110 x 43 mm (3.4 x 4.3 x 1.7’’)
Weight 150 g (5.3 oz)