Instruction Manual
(HI 981404, HI 981405)
pH & TDS/EC Monitors
with Visual Alarm
http://www.hannacan.com
These Instruments are in
Compliance with the CE Directives
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
WARRANTY
WARRANTY
HI 981404 and HI 981405 are warranted for two years
against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions.
The probes are
warranted for a period of one year.
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.
To validate your warranty, fill out and return the enclosed warranty card
within 14 days from the date of purchase.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instru-
ments Inc.
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for the correct
operation of the meter. Please read it carefully before using
the meter. If you need additional technical information, do
not hesitate to e-mail us at [email protected].
These instruments are in compliance with the directives
EN 50081-1 and EN 50082-1.
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
• HI 7634 TDS probe (HI 981404)
• HI 7632 EC probe (HI 981405)
• Calibration screwdriver
• 12 VDC power adapter
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
PRELIMINARY EXAMINATION
HI 981404
(pH and TDS) and
HI 981405
(pH and EC) are
specially designed to meet the needs of simple continuous
monitoring.
The housing has an IP54 rating.
You can simply install the meter above the sample to be
tested for continuous measurement.
The HI 1286 gel-filled pH electrode is replaceable and the
BNC connector is protected behind a waterproof sheath. The
unique design of the electrode provides longer life in aggres-
sive solutions.
You can select your own setpoint and be informed when a
dosage is required by a flashing LED alarm.
Measurements are accurate and the meter can be cali-
brated at one or two points for pH and at a single point for
TDS and EC.
You no longer need to worry about battery changes either:
the unit runs without interruption on 12 VDC supplied
adapter.
GENERAL DESCRIPTION
GENERAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1. Liquid Crystal Displays
2. Alarm LED for pH and PPM / EC
3. pH 7.0 calibration trimmer
4. pH 4.0/10.0 calibration trimmer
5. EC / TDS calibration trimmer
6. BNC connector
7. Protective sheath
8. HI 1286
9. HI 1283 - Grounding probe
10. HI 7632 / HI 7634
11. Power supply connector
12. 12 VDC power adapter
5.8
pH
1190
HI 981404 / HI 981405
HI 981404 / HI 981405
Range
0.0 to 14.0 pH
Resolution
0.1 pH
Accuracy (@ 25°C/77°F)
±0.2 pH
Setpoint
3.0 to 7.0 pH
Alarm
LED blinks when pH is higher than setpoint
Calibration
Manual at 1 or 2 points
Probes
HI 1286 replaceable pH electrode and HI
1283 grounding probe (included)
Power supply
External 12 VDC (adaptor included)
Dimensions
165 x 110 x 35 mm (6.5 x 4.3 x 1.4’’)
Weight
300 g (10.6 oz.)
HI 981404 only
HI 981404 only
Range
0 to 1990 mg/L (ppm)
Resolution
10 mg/L (ppm)
Accuracy (@ 25°C/77°F)
±2% f.s.
TDS Factor
0.7 ppm = 1 µS/cm
Temp. Compensation
Automatic 5 to 50°C
(41 to 122°F, TDS only)
Setpoint
500 to 1600 mg/L (ppm)
Alarm
LED blinks when TDS is lower than setpoint
Calibration
Manual at 1 point
Probe
HI 7634 TDS probe (included)
HI 981405 only
HI 981405 only
Range
0.00 to 9.99 mS/cm (EC)
Resolution
0.01 mS/cm (EC)
Accuracy (@ 25°C/77°F)
±2% f.s.
Temp. Compensation
Automatic 5 to 50
°
C
(41 to 122
°
F, EC only)
Setpoint
1.00 to 3.50 mS/cm (EC)
Alarm
LED blinks when EC is lower than setpoint
Calibration
Manual at 1 point
Probe
HI 7632 EC probe (included)
SPECIFICATIONS
SPECIFICATIONS
5.8
pH
1190
1
2
3
4
5
6
7
8
9
1 1
1 0
1 2
