Hanna Instruments HI 770 User Manual

Silica 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 770 meter is supplied complete with:
• Two Sample Cuvettes and Caps
• Reagents for six tests
• 1 x 1.5V AAA Battery
• Instruction Manual
HI 770
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” 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. Dust cover.
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
Technical specifications:
Range 0 to 200 ppm
Resolution 1 ppm
Accuracy ±2 ppm ±5% of reading @ 25 °C / 77 °F
Light Source Light Emitting Diode @ 470 nm
Light Detector Silicon Photocell
Method Adaptation of the USEPA METHOD 370.1 and Standard
Method 4500-SiO
2
C.
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.)
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.

Hanna Instruments HI 770 Specifications

General

Resolution	1 ppb (µg/L)
Accuracy	±20 ppb ±5% of reading
Light Detector	Silicon Photocell
Dimensions	86.0 mm x 61.0 mm x 37.5 mm (3.4" x 2.4" x 1.5")
Weight	400 g (14.1 oz)
Light Source	LED
Environment	0 to 50°C (32 to 122°F)

Summary

Functional Description

Preliminary Examination and Contents

Included Items

Lists the components supplied with the HI 770 meter, including cuvettes, reagents, battery, and manual.

Technical Specifications

Performance Metrics

Details key performance aspects like range, resolution, accuracy, light source, and measurement method.

Operational and Physical Details

Covers environmental operating conditions, battery type, auto-shut off, dimensions, and weight.

Errors and Warnings

Light and Cuvette Errors

Explains error messages related to insufficient or excessive light and incorrect cuvette placement.

Battery Status Warnings

Details warnings for low battery and when the battery is dead, requiring replacement.