User Guide

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
HI 982411
ORP CONTROLLER
SET MEAS
SET
DOSING
CAL
mV
0 ...1000 mV
OPERATIONAL GUIDE
Front view of the
panel-mounted unit
Side view of the
panel-mounted unit
Supplied adjustable lo-
cation brackets allow the
controller to slide into the
cut-out and will hold the
unit securely in place. 95
mm (3.74") is the mini-
mum amount of space
required to install the
controller.
Panel-mounted unit assembling view
73mm
2.87"
79mm
3.11"
42mm
1.65"
49mm
1.93"
95mm MIN
3.74"
76mm
3"
0.25/4mm
0.01/0.160"
79mm
3.11"
ADJUSTABLE
LOCATION
BRACKET
HI982411 LAYOUT
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
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
POWER CONNECTION
HI 982411-0
Connect a 2-wire power cable to the terminal strip while
paying attention to the correct positive and negative con-
tacts (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.