WalkLAB HP9000 Operation Manual
Operations Manual
WalkLAB
pH–mV/ORP-
temperature meter
HP9000
16,1,16,1,2,15,2,15,14,3,14,3,4,13,4,13,12,5,12,5,6,11,6,11,10,7,10,7,8,9,8,9
TABLE OF CONTENTS PAGE
1. INTRODUCTION 1
1.1 Features 1
1.2 Technical Specifications 2
2. FRONT PANEL DESCRIPTION 3
2.1 Display Symbols 4
2.2 Touch Keys 4
2.3 Error Codes 5
3. GETTING STARTED 6
3.1 Unpacking 6
3.2 Setting Up 6
4. CALIBRATION PROCEDURE 6
4.1 Calibration with Temperature Probe 7
4.2 Calibration without Temperature Probe 8
5. MEASUREMENT 9
5.1 pH Measurement with Temperature Probe 9
5.2 pH Measurement without Temperature Probe 10
5.3 Temp Measurement 11
5.4 mV Measurement 11
6. BUFFER SOLUTION REFERENCE TABLE 12
7. OPTIONAL ACCESSORIES 12
8. WARRANTY 13
1. INTRODUCTION
Your HP9000 pH Meter utilizes an advanced embedded
Microprocessor chip as the heart and brain of the
Instrument. It incorporates Analog/Digital Converter,
Computing, and Display into one micro-chip. This
increases the reliability and greatly reduces the power
consumption.
1.1 Features
Low Power Consumption
Unit requires very low power in “OFF” and ‘AUTOLOCK”
mode.
Ease of use
Automatically lock reading when a stable reading is
established. Feature can be disabled to allow continuous
reading display.
Automatic shut-off
Meter automatically shuts off after 5 minutes after last key
command. Feature can be disabled while reading in
continuous read mode.
One-touch calibration
The meter’s one-touch auto-calibration procedure uses
only one button to activate the mode. The unit will prompt
and confirm offset and slope point calibration.
1
1.2 Technical Specifications
Range Resolution Accuracy
PH 0.00 to 14.00 0.01pH ±0.01pH
mV -999 to +999 1mV ±1mV
Temp 0° to 99.9 °C 0. 1°C 0. 5°C
Automatic Temperature : 0° to 99.9 °C
Compensation
Buffer Recognition : pH 7, pH 4 or pH 10
Buffer Temperature Range : 0° to 60° C
Electrode Slope Recognition : ±20% at pH 4
or pH 10 @25° C
Electrode Offset : ±60 mV at pH 7 @25° C
Recognition
Power Source : 9 Volt Alkaline Battery
Battery Life : 250 Hrs Continuous
Reading
Size : 163 x 83 x 32 mm
Weight : Approx. 350g
2
2. FRONT PANEL DESCRIPTION
3
Main Display
Temperature
Display
Temperature
Probe
pH Electrode
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