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Instruction Manual

HI 93715

Ammonia High Range

ISM

HANNA instruments®

 reserves the right to modify the design,

construction and appearance of its products without advance notice.

HI 93715 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 93715 

meter measures the ammonia nitrogen (NH

3

-

N) content in water, wastewater and seawater in the 0.00 to
9.99 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 liquid form and are supplied in bottles.

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

0.00 to 9.99 mg/L

Resolution

0.01 mg/L

Accuracy

±0.05 mg/L ±5% of reading

Typical EMC

±0.01 mg/L

Deviation
Light Source

Light Emitting Diode @ 470 nm

Method

Adaptation of the ASTM Manual of Water

and Environmental Technology, D1426-

92, Nessler method. The reaction between

ammonia and reagents causes a yellow

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

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

Weight

290 g (10 oz.)

REQUIRED REAGENTS

Code

Description

Quantity

HI 93715

A

-0

First Reagent

4 drops (6 drops in
seawater)

HI 93715

B

-0

Second Reagent

4 drops (10 drops in
seawater)

REAGENT SETS

HI 93715-01

Reagents for 100 tests

HI 93715-03

Reagents for 300 tests

This Instrument is in

Compliance with the CE Directives

www.hannainst.com

Warranty

Preliminary Examination

General Description

Specifications

IST93715R4   11/06

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 "0.00" 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.

Display Code Guide

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