Hanna Instruments HI 717

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Phosphate High Range

Preliminary examination:

Please examine this product carefully. Make sure that the instrument is not damaged. If

any damage occurred during shipment, please notify your Dealer.

Each HI 717 meter is supplied complete with:

• Two Sample Cuvettes and Caps

• One bottle of Phosphate HR Reagent A

• Twenty packets of Phosphate HR Reagent B

• 1 x 1.5V AAA Battery

• Instruction Manual

HI 717

Functional description:

Errors and warnings:

Light High: There is too much light to perform a measurement.

Please check the preparation of the zero cuvette.

Light Low: There is not enough light to perform a measurement.

Please check the preparation of the zero cuvette.

Inverted Cuvettes: The sample and the zero cuvette are inverted.

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 cuvette for reference (zero) and measurement.

Over Range: A flashing value of the maximum concentration indicates

the reading is over range. Dilute the sample and re-run the test.

Battery Low: The battery must be replaced soon.

Dead Battery: This indicates that the battery is dead and must be

replaced. Once this indication is displayed, normal operation of the

instrument will be interrupted. Change the battery and restart the

meter.

1. Cuvette cap.

2. Cuvette with cap.

3. Cuvette holder.

4. Liquid Crystal Display.

5. Button.

For more details about spare parts and accessories

see “Accessories”.

www.hannainst.com

Dear Customer,

Thank you for choosing a Hanna Instruments Product.

Please read this instruction manual carefully before using the instrument. If you need

additional technical information, do not hesitate to e-mail us at tech@hannainst.com

or view our worldwide contact list at www.hannainst.com.

Technical specifications:

Range 0.0 to 30.0 ppm

Resolution 0.1 ppm

Accuracy ±1.0 ppm ±5% of reading @ 25 °C / 77 °F

Light Source Light Emitting Diode @ 525 nm

Light Detector Silicon Photocell

Method Adaptation of the

Standard Methods for the Examination

of Water and Wastewater, 18

edition

, Heteropoly-

molybdenum Blue method. The reaction between

orthophosphate (reactive phosphorus) and the reagent

causes a blue tint in the sample.

Environment 0 to 50 °C (32 to 122 °F);

max 95% RH non-condensing

Battery Type 1 x 1.5V AAA

Auto-Shut off After 10 minutes of non-use

Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)

Weight 64 g (2.25 oz.)

Other manuals for Hanna Instruments HI 717

Quick Start Guide2 pages

Instructions2 pages

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Summary

Errors and Warnings

Light High Error

Indicates insufficient light for measurement. Check zero cuvette preparation.

Light Low Error

Indicates insufficient light for measurement. Check zero cuvette preparation.

Inverted Cuvettes

The sample and zero cuvettes are inverted. Swap them for correct measurement.

Under Range Error

Sample absorbs less light than zero reference. Verify procedure and cuvette use.

Over Range Error

Indicates reading exceeds maximum concentration. Dilute sample and re-run test.

Battery Low Warning

Alerts that the battery needs replacement soon for continued operation.

Dead Battery Indicator

Indicates the battery is dead, stopping normal operation. Replace battery.

Accessories

Reagent Sets

Details available reagent sets for the Phosphate High Range tests.

Other Accessories

Lists additional accessories such as cleaning cloths, cuvettes, and batteries.

Summary

Errors and Warnings

Light High Error

Indicates insufficient light for measurement. Check zero cuvette preparation.

Light Low Error

Indicates insufficient light for measurement. Check zero cuvette preparation.

Inverted Cuvettes

The sample and zero cuvettes are inverted. Swap them for correct measurement.

Under Range Error

Sample absorbs less light than zero reference. Verify procedure and cuvette use.

Over Range Error

Indicates reading exceeds maximum concentration. Dilute sample and re-run test.

Battery Low Warning

Alerts that the battery needs replacement soon for continued operation.

Dead Battery Indicator

Indicates the battery is dead, stopping normal operation. Replace battery.

Accessories

Reagent Sets

Details available reagent sets for the Phosphate High Range tests.

Other Accessories

Lists additional accessories such as cleaning cloths, cuvettes, and batteries.

The Hanna Instruments HI 717 Phosphate High Range Checker is a portable, handheld colorimeter designed for accurate measurement of phosphate levels.

Function Description:

The HI 717 operates by measuring the blue tint produced when orthophosphate (reactive phosphorus) reacts with a reagent, following the Heteropolymolybdenum Blue method adapted from the Standard Methods for the Examination of Water and Wastewater, 18th edition. A Light Emitting Diode (LED) at 525 nm serves as the light source, and a Silicon Photocell acts as the light detector. The instrument displays results in parts per million (ppm) of phosphate on a Liquid Crystal Display (LCD).

Important Technical Specifications:

Range: 0.0 to 30.0 ppm
Resolution: 0.1 ppm
Accuracy: ±1.0 ppm ±5% of reading @ 25 °C/77 °F
Light Source: Light Emitting Diode @ 525 nm
Light Detector: Silicon Photocell
Method: Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Heteropolymolybdenum Blue method.
Environment: 0 to 50 °C (32 to 122 °F); max 95% RH non-condensing
Battery Type: 1 x 1.5V AAA
Auto-Shut off: After 10 minutes of non-use
Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
Weight: 64 g (2.25 oz.)

Usage Features:

The device features a simple, single-button operation.

Power On: Press the button to turn on the meter. All segments will display, followed by "Add", "C.1" with "Press" blinking, indicating readiness for zeroing.
Zeroing: Fill a cuvette with 10 mL of unreacted sample and cap it. Place the cuvette into the meter's holder (3) and close the cap (2). Press the button. The display will show "Add", "C.2" with "Press" blinking, indicating the meter is zeroed.
Reagent Addition: Remove the cuvette, unscrew the cap, and add 10 drops of HI 717AS reagent and the contents of one packet of HI 717B-25 reagent. Replace the cap and shake gently until the reagent is completely dissolved. Place the cuvette back into the meter.
Measurement: Press and hold the button until the timer is displayed on the LCD (a countdown will show prior to measurement). Alternatively, wait for 5 minutes and then press the button.
Result Display: The instrument will display the phosphate concentration in ppm.
Automatic Shut-off: The meter automatically turns off after 10 minutes of non-use to conserve battery life.

Tips for Accurate Measurement:

Ensure the sample is free of debris.
Cuvettes must be dry and free of fingerprints, oil, and dirt before insertion. Wipe thoroughly with a lint-free cloth (e.g., HI 731318).
Avoid shaking the cuvette vigorously, as bubbles can cause higher readings. Remove bubbles by swirling or gently tapping the cuvette.
Do not let the reacted sample stand for too long after reagent addition, as accuracy may be affected.
Discard the sample immediately after reading to prevent permanent staining of the glass.

Errors and Warnings:

The device provides several error messages to guide the user:

L.H (Light High): Too much light to perform a measurement. Check the preparation of the zero cuvette.
LLO (Light Low): Not enough light to perform a measurement. Check the preparation of the zero cuvette.
Inu (Inverted Cuvettes): The sample and the zero cuvette are inverted.
0.0 (blinking, Under Range): Sample absorbs less light than the zero reference. Check the procedure and ensure the same cuvette is used for reference and measurement.
Flashing value (Over Range): Reading is over range. Dilute the sample and re-run the test.
Battery Low: The battery must be replaced soon.
Dead Battery: The battery is dead and must be replaced. Normal operation will be interrupted. Change the battery and restart the meter.

Interference:

Interference may be caused by:

Sulfide (S²⁻)
Fluoride (F⁻)
Arsenate (AsO₄³⁻)
Ferrous iron (Fe²⁺) above 100 mg/L

Maintenance Features:

Battery Replacement: The instrument uses one 1.5V AAA battery. A fresh battery lasts for a minimum of 5000 measurements. When the battery is dead, the instrument will display "bad" then "bat" for 1 second and then turn off. To replace the battery, turn off the instrument by holding the button, then turn the instrument upside down, remove the battery cover with a screwdriver, remove the old battery, and insert a new one with the negative end first. Replace the battery cover and screw.
Cuvette Cleaning: Cuvette cleaning solution (HI 93703-50) is available for cleaning cuvettes.

Accessories:

Reagent Sets: HI 717-25 (Reagent set for 40 Phosphate High Range tests)
Other Accessories:
- HI 717-11 (Phosphate HR Certified Standard Kit)
- HI 731318 (Cloth for wiping cuvettes, 4 pcs.)
- HI 731321 (Glass cuvettes, 4 pcs.)
- HI 731225 (Cuvette black cap for checker HC, 4 pcs.)
- HI 731353 (Cuvette seal cap for checker HC, 4 pcs.)
- HI 740028 (1.5V AAA batteries, 4 pcs.)
- HI 93703-50 (Cuvette cleaning solution, 230 mL)