Hanna Instruments HI 93707 - Manual

Instruction Manual
HI 93707
Nitrite Low Range ISM
HANNA instruments® reserves the right to modify the design,
construction and appearance of its products without advance notice.
HI 93707 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 93707 meter measures the nitrite nitrogen (NO
2
––––– -N)
content in water and wastewater in the 0.00 to 0.35 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 reagent is in powder form and is 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 0.00 to 0.35 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±4% of reading
Typical EMC ±0.01 mg/L
Deviation
Light Source
Light Emitting Diode @ 470 nm
Method Adaptation of the EPA method 354.1.
The reaction between nitrite and the
reagent causes a pink 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 93707-0 Nitrite LR Reagent 1 packet
REAGENT SETS
HI 93707-01 Reagents for 100 tests
HI 93707-03 Reagents for 300 tests
IST93707R2 01/07
Warranty
Preliminary Examination
General Description
Specifications Display Code Guide
This Instrument is in
Compliance with the CE Directives
www.hannainst.com
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.