User Guide

ManualsBrandsHanna Instruments ManualsOtherHI 981411-0

FUNCTIONAL DESCRIPTION

FRONT PANEL

Keypad

SET To display

setpoint

MEAS To display

measurement

Trimmers

CAL For pH Offset

Calibration

SET To adjust the

Setpoint

LEDs

SET ON when LCD

displays the set value

MEAS ON when the LCD displays the measurement

value

DOSING ON when dosing contact is activated

REAR PANEL

1. Power Supply:

HI 981411-0 HI 981411-1

12VDC 115/230 VAC

L1: Positive 230 VAC

L2: Negative 115 VAC

L3: ------ Neutral

L4: ------ Protection Earth

Note: the power input is internally protected by a 400 mA fuse.

2.Dosing Selection Contacts:

Leave S1 and S2 open to select ACID dosage;

Short S1 and S2 to select ALKALINE dosage.

3.The dosing (alarm) contact acts as a switch. The

contact has to be protected outside by the user.

HI 981411

pH CONTROLLER

SET

MEAS

SET

DOSING

CAL

0.0 ...14.0 pH

OPERATIONAL GUIDE

POWER CONNECTION

HI 981411-0

Connect a 2-wire power cable to the terminal strip while

paying attention to the correct positive and negative con-

tacts (12VDC).

HI 981411-1

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 settings of the parameters 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 that the

Setpoint is properly adjusted before proceeding.

Attach the pH-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 pH value. Any initial variation on

readings may be due to temperature compensation.

The “DOSING” LED will light up when the dosing contact is

closed.

CALIBRATION

Make sure the meter is in the measurement mode (the

“MEAS” LED lights on). Immerse the electrode in HI 7007

(pH7.01) buffer solution (or any buffer solution close to the

operating pH value). Shake briefly and wait for reading to

stabilize. Adjust the calibration trimmer until “7.0” is

displayed on the LCD.

SETPOINT

Press the "SET" key. The display will show the default or

previously adjusted value. Using a small screwdriver adjust

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 cutout and will

hold the unit securely

in place. 95mm (3.74")

is the minimum 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

0.25/4mm

0.01/0.160"

79mm

3.11"

ADJUSTABLE

LOCATION

BRACKET

HI981411 LAYOUT

HI 740146

ACCESSORIES

pH CALIBRATION SOLUTIONS

HI 7007M pH 7.01 Buffer Solution, 230mL bottle

HI 7007L pH 7.01 Buffer Solution, 460mL bottle

ELECTRODE STORAGE SOLUTION

HI 70300M Storage Solution, 230mL bottle

ELECTRODE CLEANING SOLUTIONS

HI 7061M General Cleaning Solution, 230mL bottle

HI 7061L Oil & Fat Cleaning Solution, 230mL bottle

pH ELECTRODES

HI1002/5 Heavy-duty BNC-type double junction, plastic-

body with external thread and 5m (16.5’) cable

HI1090T Screw type, double junction, glass-body with

external thread

HI1110S Screw type, single junction, glass-body

HI1210T Screw type, double junction, plastic-body with

external thread

HI2114P/2 BNC-type, double junction plastic-body with

2m (6.6’) cable

HI1210B/5 BNC-type cable, double junction, plastic-body,

with 5 m (16.5') cable

HI2910B/5 BNC-type, double junction, plastic-body, built-

in amplifier, with 5 m (16.5') cable

EXTENSION CABLES FOR SCREW-TYPE ELECTRODES

TO BNC CONNECTOR

HI7855/5 Extension cable 5m (16.5') long

HI7855/10 Extension cable 10m (33') long

OTHER ACCESSORIES

BL PUMPS Dosing Pumps with flow rate from 1.5 to 20 LPH

HI6050 Submersible electrode holder, 60cm (24”)

HI 6051 Submersible electrode holder, 110cm (43”)

HI 6054B Electrode Holders for in-line applications

HI 6054T 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

HI731326 Calibration Screwdriver (20 pcs)

HI 7871 Level Controller (min and max)

HI 7873 Level Controller (min, max and overflow)