User Manual
Model P771
pH Meter
1
Table of Contents
1
2
3
4
5
6
INTRODUCTION......................................................................................................... 1
SAFETY SUMMARY .................................................................................................. 2
COMPLIANCE STATEMENTS .................................................................................. 3
PRODUCT CONTENTS AND INSPECTION .............................................................. 3
DEVICE DESCRIPTION ............................................................................................. 4
OPERATING INSTRUCTIONS ................................................................................... 4
6.1 P
REPARATION
......................................................................................................... 4
6.2 C
ALIBRATION
.......................................................................................................... 4
6.3 M
EASURING WITH THE P
H M
ETER
............................................................................ 5
6.4 C
HANGING THE BATTERY
......................................................................................... 5
6.5 E
LECTRODE
R
EPLACEMENT
.................................................................................... 5
TECHNICAL SPECIFICATIONS ................................................................................ 6
MAINTENANCE ......................................................................................................... 7
SERVICE INFORMATION .......................................................................................... 7
9.1 S
ERVICE
, R
EPAIR
,
OR
C
ALIBRATIONS
....................................................................... 7
9.2 W
ARRANTY
............................................................................................................. 8
7
8
9
1
Introduction
The P771 pH meter is a highly accurate, pocket-sized pH meter perfect for use in field
environments and applications such as:
Agriculture
Anti-freeze recycling
Aquariums
Boilers
Chemical industry
Cooling towers
Drinking water
Fish farming
Food industry
Hydroponics
Laboratory usage
Plating industry
Swimming pools and spas
Water treatments facilities
With this meter you can easily and accurately measure the pH balance of liquids.
Contained in a rugged, waterproof housing, with replaceable electrodes, this meter will
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©Anaheim Scientific Corp. 2012 v110912
2
give long durable service. High 0.01 pH resolution and ±0.02 pH accuracy gives you lab
quality results at your fingertips. Automatic temperature compensation (ATC) adjusts for
changes in pH due to temperature so you can be sure of your results.
Features
Fast response, reliable and accurate measurements
High resolution (0.01 pH)
High accuracy ( ±0.02 pH)
Measures 0.00 ~ 14.00 pH
Impact resistant ABS waterproof housing (meets IP57 standards)
Compact size fits easily into your pocket
Automatic temperature compensation
Replaceable electrodes (not covered under warranty)
Large 21 x 18 mm, 3
½
digit, LCD display
Easy 2-point calibration with included pH 4 & 7 buffer solutions
Comes ready-to-go with two long-life 3-V Lithium batteries
2
Safety Summary
Be sure the temperature and humidity are within the limits indicated in the Technical
Specifications section of this manual.
Avoid making measurements in the presence of explosive gas, combustible gas, steam or
excessive dust.
Do not install substitute parts or perform any unauthorized modifications to this
instrument. Return the instrument to Anaheim Scientific for service and repair to ensure
that safety features are maintained.
The following symbols are used in this manual:
This symbol on an instrument indicates that the user should refer to the
operating instructions located in the manual.
The meter is in compliance to the CE mark standards
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3
Compliance Statements
Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union
and other European countries with separate collection systems)
This product is subject to Directive 2002/96/EC of the European
Parliament and the Council of the European Union on waste
electrical and electronic equipment (WEEE), and in jurisdictions
adopting that Directive, is marked as being put on the market after
August 13, 2005, and should not be disposed of as unsorted
municipal waste. Please utilize your local WEEE collection
facilities in the disposition of this product and otherwise observe
all applicable requirements.
4
Product Contents and Inspection
This unit is tested prior to shipment. It is therefore ready for immediate use upon receipt.
An initial physical inspection should be made to ensure that no damage has been
sustained during shipment.
Inspect the packing box on receipt for any external damage. If any external damage is
evident, remove the instrument and visually inspect its case and parts for any damage. If
damage to the instrument is evident, a description of the damage should be noted on the
carrier’s receipt and signed by the driver or carrier agent. Save all shipping packaging for
inspection. Forward a report of any damage to the agent through which the unit is
procured.
Retain the original packing in case subsequent repackaging for return is required. Use of
the original packing is essential.
After the mechanical inspection, verify the contents of the shipment. The items included
in this package are:
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©Anaheim Scientific Corp. 2012 v110912
4
P771 pH meter
Instruction manual
4.00 buffer solution
7.00 buffer solution
Soaking solution
Two 3V Batteries (already installed)
Calibration screwdriver
Gift box
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2
5
1)
2)
3)
4)
5)
6)
7)
8)
Device Description
Battery compartment cap
Main display
Power button
Electrode collar
Electrode module
Soaking reservoir
Sensor bulb
Protective cap
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3
4
5
6
7
6
6.1
Operating Instructions
Preparation
1. Remove the protective cap and unscrew the soaking reservoir from the meter to
rinse the electrode with clean water and wipe it dry. Don’t leak the soaking
solution from the reservoir. Replace the meter in the soaking reservoir
whenever it is not in use.
2. Open the battery compartment to take out the screwdriver.
3. Press the
button to turn the meter power on.
6.2
Calibration
1. Dip the electrode into the buffer solution pH 7. Stir gently and wait until the
display is stabilized. Adjust the reading to 7.00 by turning the trimmer (zero),
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Technical data subject to change without notice
©Anaheim Scientific Corp. 2012 v110912
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