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Instruction Manual

HI 93709

Manganese High Range

ISM

This Instrument is in

Compliance with the CE Directives

Hanna Instruments reserves the right to modify the design, construction

and appearance of its products without advance notice.

HI 93709 is warranted for two years 

against defects in

workmanship and materials when used for its 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.

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 [email protected].
This instrument is in compliance with   directives.

Remove the instrument from the packing material and

examine it carefully to make sure that no damage has

occurred during shipment. If there is any damage, notify

your Dealer.
Each Ion Specific Meter is supplied complete with

• 9V Battery

• Two Sample Cuvets and Caps

• One Transport Cap

Note:

Conserve all packing material until the instrument

has been observed to function correctly. Any defective

item must be returned in its original packing.

The 

HI 93709

 meter measures the manganese content in

water and wastewater in the 0.0 to 20.0 mg/L (ppm)
range.
The meter uses an exclusive positive-locking system to ensure

that the cuvet is in the same place every time it is placed

into the measurement cell.
The reagents are in powder form and are supplied in

packets. The amount of reagent is precisely dosed to ensure

maximum repeatability.
Display codes aid the user in routine operations.
The meters have an auto-shut off feature that will turn the

instrument off after 10 minutes of non-use.

SPECIFICATIONS

Range

0.0 to 20.0 mg/L

Resolution

0.1 mg/L

Accuracy

±0.2 mg/L ±3% of reading

Typical EMC

±0.1 mg/L

Deviation

Light Source

Light Emitting Diode @ 555 nm

Method

Adaptation of the Standard Methods for

the Examination of Water and Wastewater,

18

th

 edition, Periodate method. The reaction

between manganese and reagents causes a

violet tint in the sample.

Light Detector

Silicon Photocell

Environment

0 to 50°C (32 to 122°F);

max 95% RH non-condensing

Battery

Type/Life

1 x 9 volt/40 hours

Auto-Shut off

After 10' of non-use

Dimensions

180 x 83 x 46 mm (7.1 x 3.3 x 1.8")

Weight

290 g (10 oz.).

REQUIRED REAGENTS

Code

Description

Quantity

HI 93709

A

-0 Manganese HR Reagent A

1 packet

HI 93709

B

-0 Manganese HR Reagent B

1 packet

REAGENT SETS

HI 93709-01

Reagents for 100 tests

HI 93709-03

Reagents for 300 tests

This indicates that the meter is in a
ready state and zeroing can be
performed.
Sampling in Progress. This prompt
appears each time the meter is
performing a measurement.
This indicates that the meter is in a
zeroed state and measurement can be
performed.
A zero reading was not taken. Insert a
sample before adding reagent and
press ZERO.
Under range. A blinking "0.0" indicates
that the sample absorbs less light than
the zero reference. Check the procedure
and make sure you use the same cuvet
for reference (zero) and measurement.
Over range. A flashing value higher
than the maximum concentration
readable (see specifications) indicates
that the sample absorbs too much light,
meaning that the concentration is too
high. Dilute the sample.
Light over range. The cuvet is not
inserted correctly and an excess ambient
light is reaching the detector. If the
cover is properly installed, then contact
your dealer or the nearest Hanna
Customer Service Center.
Light under range. The zero sample is
too dark for proper zeroing. If this is
not the case, contact your dealer or the
nearest Hanna Customer Service
Center.
The "V" indicates that the battery
voltage is getting low and the battery
needs to be replaced.
This indicates that the battery is dead
and must be replaced.

Note:

 once this indication is displayed,

the meter will lockup. Change the
battery to restart.

V

www.hannainst.com

Warranty

Preliminary Examination

General Description

Specifications

Display Code Guide

IST93709R2

01/07

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