Hanna Instruments HI 93703 User Manual

SALES AND TECHNICAL SERVICE CONTACTS

Instruction Manual

Australia:

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South Africa:

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Taiwan:

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Thailand:

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Turbidity Meter with RS232

MAN93703-11R1 08/05

HI 93703-11

Portable Logging

HI9370 3-11HI

GLP

LOGGIN G

LOGGIN G

MICROP ROCESSOR

MICROP ROCESSOR

TURBID ITYMETER

TURBID ITY

METER

LOG

93703- 11

ON

OFF

CAL

CLR

READ

ALT

DATE

188

VIEW

STO

DATE

TIME

LOBAT

%

United Kingdom:

Tel. [phone] • Fax [phone]

USA:

Tel. [phone] • Fax [phone]

For e-mail contacts and complete list of Sales and
Technical offices, please see www.hannainst.com

www.hannainst.com

Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully

before using the instrument.
This manual will provide you with the necessary

information for the correct use of the instrument.
If you need additional technical information, do

not hesitate to e-mail us at

[e-mail]

This instrument is in compliance with the
directives.

TABLE OF CONTENTS

Preliminary Examination ............................ 3

General Description.................................... 3

Principle of Operation ................................. 5

Functional Description................................ 6

Specifications ............................................ 7

Operational Guide ...................................... 8

Measurement Procedure ....................... 8

Log-on-demand ................................... 11

Cleaning Logged Data ......................... 11

Viewing Logged Data .......................... 12

Viewing and setting Date and Time ..... 12

Error Codes......................................... 13

Ensure Accurate Measurements ............. 1 4

Sources of Interference....................... 15

Cali brat ion................................................ 16

Calibration Procedure .......................... 16

Viewing Calibration Date ..................... 18

Ensure Accurate Calibration................ 18

Standard Suspension .......................... 19

Battery Replacement ............................... 20

PC Connection......................................... 21

Accessories............................................. 22

Warranty .................................................. 23

2

WARRANTY

All Hanna Instruments meters 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
accidents, 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. First obtain a Returned Goods Authori­zation number from the Customer Service de­partment, then return the instrument with the
Authorization # included along with shipment
costs prepaid. If the repair is not covered by the
warranty, you will be notified of the charges.

When shipping any instrument, make sure it is
properly packaged for complete protection.

All rights are reserved. Reproduction in whole
or in part is prohibited without the written
consent of the copyright owner.

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 area could cause unacceptable
interferences to radio and TV equipments, requiring the operator to take all
necessary steps to correct interferences.

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 voltages at the
measurement surface exceed 24 Vac or 60 Vdc.

To avoid damages or burns, do not perform any measurement in microwave
ovens.

23

ACCESSORIES

PRELIMINARY EXAMINATION

HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731321 Spare glass cuvet (4 pcs)
HI 731313 Maintenance kit: rugged

carrying case including HI
93703-0 and HI 93703-10
calibration solutions, HI 93703­50 cuvet cleaning solution, 1

tissue for wiping cuvets and 2
cuvets

HI 93703-0 AMCO-AEPA-1 @0 FTU*

calibration solution, 30 mL

HI 93703-05 AMCO-AEPA-1 @500 FTU*

calibration solution, 30 mL

HI 93703-10 AMCO-AEPA-1 @10 FTU*

calibration solution, 30 mL

HI 93703-50 Cuvet cleaning solution, 230

mL

HI 92000 Windows® compatible software
HI 920011 Serial cable for PC connection

(5 to 9-pin)

* 1 FTU = 1 NTU

22

Remove the instrument from the packing material
and examine it to make sure that no damage has
occurred during shipping. If there is any damage,
notify your Dealer.

HI 93703-11 is supplied complete with:

• Glass cuvet with cap

• Batteries (4 x 1.5V AA)

• Instruction manual

Note: Save all packing material until you are sure

that the instrument functions correctly. Any
defective item must be returned in its original
packaging with the supplied accessories.

GENERAL DESCRIPTION

With HI93703-11 turbidity measurements can
be performed with high precision in the field as
well as in the laboratory. HI93703-11 turbidity
meter is a microprocessor-based instrument
used to determine the turbidity of water and
waste-water. The meter covers a 0-1000 FTU
range in two scales: 0.00 to 50.00 FTU and 50
to 1000 FTU. The autoranging feature of the
instrument sets the appropriate range for the
measurement.
HI 93703-11 also includes a real-time clock and
log-on-demand capability. The PC
communication is made through a serial port of
your computer and the 5-pin socket on the
meter.
Note: HI 93703-11 has been designed

according to the ISO 7027 International
Standard, consequently the turbidity
measurement units are expressed in
FTU (Formazine Turbidity Unit). FTU is
identical to the other internationally
recognized unit: NTU (Nephelometric
Turbidity Unit).

3

The meter is housed in a rugged and lightweight
case, with an easy-to-read LCD.

To save battery-life, the instrument is equipped
with an automatic shut-off feature which is
activated after 5-minutes of non-use. This fea­ture is disabled when the meter is connected to
the serial port of the computer.

All operations can be carried out with only five
keys and troubleshooting functions can be
performed with displayed error code guides.

A positive-locking system guarantees that the
cuvet is firmly placed in the cell.

The keypad is water-resistant and can be wiped
with a moist cloth for quick cleanups.

Two or three point calibration (0,10, 500 FTU*)
can be easily performed using available stan­dards, and the last calibration date is auto­matically stored for future retrivial.

We have chosen 10 FTU * as the standard
calibration point because it best fits the
water turbidity measurements in different
applications, from drinking water to waste­water treatment.

HANNA instruments® uses the primary stan­dard AMCO-AEPA-1 to avoid all formazine­related problems. Formazine is a toxic, un­stable substance, which requires particular care:
its standards have to be prepared only a few
minutes before performing the calibration, and
cannot be reused because of their short life.
HANNA instruments® standards are extremely
stable, can be reused, and last up to six
months, if free from contamination.

HI 93703-11 can be used with both standards.

Battery replacement must only take place in a
safe area and using 1.5V AA alkaline batteries.

To install or replace the
batteries, turn the unit off
and remove the battery
compartment cover on the
raer of the meter.

-

1.5V

+

-

1.5V

+

-

1.5V

1.5V

+

SCREW

+

POTS

-

Insert the new batteries
while paying attention to
the polarity.

After the batteries have been installed, close the
battery cover and make sure the gasket is in
place before tightening the 2 screws, to ensure
a watertight seal.

PC CONNECTION

To communicate with the instrument through
the HI 92000 software, use the HI 920011 cable
(optional) to connect a serial port of your com­puter to the 5 pin connector of the meter.
When connected the meter will maintain full
functionality, being able to perform a data trans­fer while the meter is being operated.

Notes:

• Serial communication is not allowed when the
meter is being calibrated.

• The auto shut-off feature is also disabled when
the meter is connected to a computer.

* 1 FTU = 1 NTU

4

21