User Guide
OPERATIONAL GUIDE
POWER CONNECTION
HI 983327-0 and HI 98332700
Connect a 2-wire power cable to the terminal strip while
paying attention to the correct positive and negative con-
tacts (12 VDC).
HI 983327-1
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.
ALARM CONTACT
Use this contact (maximum 5A, 240VAC, 30VDC) for connec-
tion to an alarm or dosing system. The unit acts as a switch
to control an external device.
OPERATING THE METER
All operations can be controlled via 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 the Setpoint is
properly selected before performing any measurement.
Attach the probe to the meter. Install the probe in the
fittings or immerse it in the solution to be monitored, while
making sure that metal pins are completely submerged.
Press the “MEAS” key.
The LCD will show the conductivity value of the solution in
mS/cm unit. Any initial variation on readings may be due
ACCESSORIES
HI 7632-00EC probe
HI 70039P 5.00 mS/cm (5000 µS/cm) calibration solu-
tion, 20mL sachet (25 pcs)
HI 7039M 5.00 mS/cm (5000 µS/cm) calibration solu-
tion, 230mL bottle
HI 7061M Electrode cleaning solution, 230 mL bottle
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 740146 Mounting brackets
CE DECLARATION
OF CONFORMITY
Recommendations for Users
Before using these products, make sure that they are entirely suitable for
the environment in which they are used. Operation of these instruments in
residential areas could cause unacceptable interferences to radio and TV
equipment. The metal band at the end of the probe is sensitive to electro-
static discharges. Avoid touching this metal band at all times. During op-
eration, ESD wrist straps should be worn to avoid possible damage to the
probe 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 these instruments when voltage at the
measurement surface exceeds 24 VAC or 60 VDC. Use plastic beakers to mini-
mize any EMC interferences.
To avoid damage or burns, do not perform any measurement in microwave
ovens.
to temperature compensation.
The “ALARM” LED will light up when the alarm contact is
losed, to indicate an EC value higher than selected setpoint.
CALIBRATION
Make sure the meter is in the measurement mode (the
“MEAS” LED lights on).
Immerse the probe in HI 7039 (5.00 mS/cm) calibration
solution.
Shake briefly and wait for reading to stabilize.
Using a small screwdriver adjust the calibration trimmer
until the meter displays “5.00” on the LCD.
SETPOINT
Press the “SET” key. The display will show the default or
previously adjusted value for the setpoint.
Using a small screwdriver, adjust the “SET” trimmer until
the required limit value is displayed.
PROBE MAINTENANCE
To improve probe performance and prolong its life, it is
recommended to clean it regularly.
• Immerse the tip of the probe in HI 7061 Cleaning
Solution at least for one hour.
• If a more thorough cleaning is required, brush the
metal pins with very fine sandpaper.
• After cleaning, rinse the probe with tap water and
recalibrate the meter.
• When not in use, clean the probe before storing it.
SPECIFICATIONS
HI 983327
Range 0.00 to 10.00 mS/cm
Resolution 0.01 mS/cm
Accuracy (@ 20°C) ±2% f.s.
Setpoint Adjustable through multiturn trimmer
Alarm Condition LED ON and alarm contact closed when
measured EC value is higher than setpoint
Alarm Output 2-contact relay, no fuse protected.
5A, 240 VAC, 30 VDC
Probe HI 7632-00 EC probe
Temp.Compensation Automatic from 5 to 50°C
(41 to 122°F); ß=2%/ºC
Calibration Manual, at one point through trimmer
Calibration Solution HI 7039 (5.00 mS/cm)
Power supply: External
HI 983327-0 12VDC
HI 98332700 12VDC isolated inside with DC/DC converter
HI 983327-1 115/230 VAC; 50/60Hz
Dimensions 79 x 49 x 95 mm (3.1 x 1.9 x 3.7”)
Weight:
HI 983327-0, HI 98332700 140 g (4.96 oz)
HI 983327-1 250 g (8.85 oz)