Instruction Manual
HI 982411-0
HI 982411-1
Panel-Mounted
ORP Indicators &
Controllers
Manufactors since 1978
These Instruments are in
Compliance with the CE Directives
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 tech@hannainst.com.
These instruments are in compliance with the directives.
PRELIMINARY EXAMINATION
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:
- Mounting bracket;
- Instruction manual.
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
SPECIFICATIONS
HI 982411
Range 0 to 1000 mV
Resolution 1 mV
Accuracy (@ 20°C/68°F) ±5 mV
Calibration Manual, at one point (OFFSET)
through trimmer
Setpoint Adjustable, from 0 to 1000 mV
Dosing Contact Open when Measure > Setpoint
Close when Measure < Setpoint
Power supply: External
HI 982411-0 12 VDC
HI 982411-1 115/230 VAC; 50/60Hz
Dimensions 79 x 49 x 95 mm (3.1 x 1.9 x 3.7”)
Weight:
HI 982411-0 140 g (4.96 oz)
HI 982411-1 250 g (8.85 oz)
CE DECLARATION
OF CONFORMITY
HI982411-0 and HI982411-1
14-4-99
WARRANTY
HI 982411-0 and HI 982411-1 are warranted for two years
against defects in workmanship and materials when used for their
intended purpose and maintained according to instructions.
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 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 shipment costs prepaid. When shipping any instrument, make sure it
is properly packaged for complete protection.
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 Instruments
Inc., Woonsocket, Rhode Island, 02895 , USA.
GENERAL DESCRIPTION
HI 982411-0 and HI 982411-1 are ORP indicators and
controllers with a relay output designed for simplicity of use
in a wide range of industrial applications.
The models are panel-mounted with membrane keypads
on the front panel and an easy-to-read LCD display.
Power supply, wiring and selection are made via the plugin terminal blocks on the rear panel. The instruments are
equipped with a BNC socket and accept input from ORP
electrode.
LED indicators on the front panel identify whether the
controller is in set or reading mode, and if dosing device is
activated.
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 discharges.
Avoid touching this glass bulb at all times. During operation, ESD wrist straps
should be worn to avoid possible damage to the electrode by electrostatic
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 voltage at the
measurement surface exceeds 24 VAC or 60 VDC. To avoid damage or burns,
do not perform any measurement in microwave ovens.
ISTR982411R4 06/2001
Hanna Instruments reserves the right to modify the
design, construction and appearance of its products without advance notice.
OPERATIONAL GUIDE
95mm MIN
3.74"
76mm
3"
0.25/4mm
0.01/0.160"
79mm
3.11"
ADJUSTABLE
LOCATION
BRACKET
POWER CONNECTION
HI 982411-0
Connect a 2-wire power cable to the terminal strip while
paying attention to the correct positive and negative contacts (12 VDC).
HI 982411-1
Connect a 3-wire power cable to the terminal strip while
paying attention to the correct earth, neutral and line
contacts (115/230 VAC).
Notes:
• All external cables connected to the rear panel should
end with wire lugs.
• It is recommended to cover the unused terminals with
insulating tape.
• At start up the meter needs a few seconds to stabilize.
Wait until a stable reading is displayed.
DOSING CONTACT
This contact (maximum 5A, 240VAC, 30VDC) is used for
connection to an alarm or dosing system. The relay contact
acts as a power switch for the controlling device.
OPERATING THE METER
All operations are controlled via the front panel keys and
trimmers. “SET” and “MEAS” LEDs light up to indicate
which is the operating function.
Make sure that the meter is calibrated and that the
Setpoint is properly adjusted before proceeding.
Attach the electrode to the meter with a BNC connector.
Install the electrode in the fittings or immerse it in the
solution to be monitored. Press the "MEAS" key.
The LCD will show the ORP value in mV unit.
Any initial variation on readings may be due to tempera-
ture compensation.
The “DOSING” LED will light up when the dosing contact is
closed.
CALIBRATION
This meter is factory calibrated. The calibration can be
performed by diving the electrode in HI7020S solution and
adjusting the calibration trimmer.
SETPOINT
Press the "SET" key. The display will show the default or
previously adjusted value. Using a small screwdriver adjust
the "SET" trimmer until the required value is displayed.
FUNCTIONAL DESCRIPTION
FRONT PANEL
Keypad
SET To display
setpoint
MEAS To display
measurement
Trimmers
CAL For mV
Calibration
SET To adjust
setpoint
LEDs
SET ON when LCD
displays the set
value
MEAS ON when LCD displays the measured value.
DOSING ON when dosing contact is activated (closed)
REAR PANEL
1. Power Supply:
HI 982411-0 HI 982411-1
12 VDC 115/230 VAC
L1: Positive 230 VAC
L2: Negative 115 VAC
L3: ------ Neautral
L4: ------ Potential Earth
Note: the power input is internally protected by a 400 mA fuse
2. Alarm contact: This dosing contact acts as a switch.
The alarm (dosing) contact will be closed when
measure is lower than setpoint.
3. BNC socket for ORP electrode.
HI 982411
ORP CONTROLLER
0 ...1000 mV
DOSING
CAL
SET MEAS
SET
mV
HI982411 LAYOUT
Front view of the
panel-mounted unit
Side view of the
panel-mounted unit
Supplied adjustable location brackets allow the
controller to slide into the
cut-out and will hold the
unit securely in place. 95
mm (3.74") is the minimum amount of space
required to install the
controller.
Panel-mounted unit assembling view
42mm
1.65"
49mm
1.93"
73mm
2.87"
HI 740146
ACCESSORIES
ORP SOLUTIONS
HI 7020M 200-275mV Solution, 230mL bottle
HI 7020L 200-275mV Solution, 460mL bottle
HI 7091M Pre-Treatment Reducing Solution, 230mL
HI 7091L Pre-Treatment Reducing Solution, 460mL
HI 7092M Pretreatment Oxidizing Solution, 230mL
HI 7092L Pre-Treatment Oxidizing Solution,460mL
ELECTRODE STORAGE SOLUTIONS
HI70300M Storage Solution, 230mL bottle
HI 70300L Storage Solution, 460mL bottle
79mm
3.11"
ELECTRODE CLEANING SOLUTIONS
HI 7061M General Cleaning Solution, 230mL bottle
HI 7061L General Cleaning Solution, 460mL bottle
ORP ELECTRODES
HI3214P/2 BNC-type, platinum, double-junction, plas-
tic-body with 2m (6.6’) cable
HI2003/5 Heavy-duty, BNC-type, platinum, double junc-
tion, plastic-body with 5m (16.5’) cable
HI2012/5 Heavy-duty, BNC-type, platinum, double junc-
tion, plastic-body with 5m (16.5’) cable
EXTENSION CABLES FOR SCREW-TYPE ELECTRODES ONLY
(SCREW TO BNC CONNECTOR)
HI7855/1 Extension cable 1m (3.3') long
HI7855/3 Extension cable 3m (9.9') long
HI7855/5 Extension cable 5m (16.5') long
HI7855/10 Extension cable 10m (33') long
HI7855/15 Extension cable 15m (49.5') long
OTHER ACCESSORIES
BL -PUMPS Dosing Pumps with Flow Rate from 1.5 to
20 LPH
HI 6050 and
HI 6051 Submersible Electrode Holders
HI 6054 and
HI 6057 Electrode Holders for In-Line Applications
HI 710005 12 VDC power adapter, US plug
HI 710006 12 VDC power adapter, European plug
HI 710012 12 VDC power adapter, Australian plug
HI 710013 12 VDC power adapter, Southern Africa plug
HI 710014 12 VDC power adapter, UK plug
HI 731326 Calibration Screwdriver (20 pcs)
HI 7871 & HI 7873 Level Controllers