TABLE OF CONTENTS PAGE INTRODUCTION 1.1 Features 1.2 Technical Specifications FRONT PANEL DESCRIPTION 2.1 Display Symbols 2.2 Touch Keys 2.3 Error Codes GETTING STARTED 3.1 Unpacking 3.2 Setting Up CALIBRATION PROCEDURE 4.1 Calibration with Temperature Probe 4.2 Calibration without Temperature Probe MEASUREMENT 5.1 pH Measurement with Temperature Probe 5.2 pH Measurement without Temperature Probe 10...
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. Features Low Power Consumption Unit requires very low power in “OFF”...
Technical Specifications Range Resolution Accuracy 0.00 to 14.00 0.01pH ±0.01pH -999 to +999 ±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°...
DISPLAY SYMBOL - Wait indicator AUTOLOCK - Stabilized reading indicator MANUAL - Manual temperature compensation mode indicator Automatic temperature compensation mode indicator OFFSET - Calibration mode offset point indicator SLOPE - Calibration mode slope point indicator - Low Battery indicator TOUCH KEYS ON / OFF The ON/OFF key turns the instrument on and off.
The CAL key activates calibration mode. Press once and the display will prompt for the calibration steps. TEMP SET / DIGIT ADV The TEMP SET and DIGIT ADV Key are used to set temperature compensation manually. Press TEMP SET key once will allow selection of digit to flash momentarily.
GETTING STARTED Unpacking Your instrument is shipped with a pH electrode, a temperature probe, buffer solution pH 7.00 , buffer solution pH 4.01 and this manual. Check the items carefully and contact the place of purchase immediately if anything is missing or damaged. Setting Up 3.2.1 Pull the latch of battery cover located at bottom rear...
Calibration with Temperature Probe 4.1.1 Rinse the pH electrode and temperature probe in distilled water and switch on the instrument. OFFSET and SLOPE indicator will alternate if no calibration is registered in the memory. 4.1.2 Press the CAL key. The OFFSET indicator will flash momentarily.
Calibration without Temperature Probe 4.2.1 Remove the temperature probe connected to the instrument. The temperature display will show a default reading of 25.0°C. 4.2.2 Set the instrument to display the temperature of the buffer 7.00 by pressing the TEMP SET key once. The temperature digit will flash momentarily.
4.2.9 When the SLOPE point is established, the instrument will beep ‘AUTOLOCK’ indicator appears. Calibration is completed. 4.2.10 For every successive calibration, the instrument will retain the last calibration data until the next calibration. TERMINATION DURING CALIBRATION If you wish to abort a calibration or if you have accidentally activated the CAL key, press the READ/AUTO key to abort the calibration and return to read mode.
5.1.4 If reading is erratic or unstable, instrument will not be able to AUTOLOCK the reading. This can be the result of a worn-off or bad pH electrode. pH Measurement without Temperature probe 5.2.1 Remove the temperature probe connected to the instrument.
Temperature Measurement 5.3.1 The instrument can be used to measure temperature independently with the temperature probe. 5.3.2 When measuring temperature independently, remove the pH electrode connected to the instrument. 5.3.3 Press the READ/AUTO key for 3 seconds to activate continuous reading mode. Error code may appear on pH display but will not affect the temperature reading.
6. BUFFER SOLUTION REFERENCE TABLE While using standard buffer solutions for calibration, use only Buffer solution with the following temperature coefficient for accurate calibration:- Temperature Buffer 7 Buffer 4 Buffer 10 (°C) (pH) (pH) (pH) 7.11 4.00 10.32 7.08 4.00 10.25 7.06 4.00...
WARRANTY Trans Instruments (S) Pte. Ltd. warranties this product for a period of 12 months for main unit and 3 months for pH electrode from the date of purchase against all defects in material and workmanship. This warranty does not apply to the abuse and misuse of the instrument.
Page 16
CALIBRATION CERTIFICATE Product: WalkLAB pH meter HP9000 Range: 0 to 14 pH Calibration point(s): 7.00 & 4.01 Test point(s): 7.00 , 4.01, 10.01 Accuracy achieved: ±0.02 (Complete system, meter + probe) Trans Instruments (S) Pte. Ltd. certified that the above products...
Need help?
Do you have a question about the HP9000 and is the answer not in the manual?
Questions and answers