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Related Manuals for OHAUS ST300-G
Summary of Contents for OHAUS ST300-G
- Page 1 STARTER 300 Portable pH Meter Instruction Manual Manual de instrucciones del pHmetro portátil STARTER 300 STARTER 300 PH-mètre portable Manuel d’instructions STARTER 300 Medidor de pH Portátil Manual de Instruções 1.888.610.7664 www.calcert.com sales@calcert.com...
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..............1 Definition of Signal Warnings and Symbols ........1 Safety Precautions ................2 Display and controls ................3 INSTALLATION ..............5 Package contents ................5 Installing the batteries ............... 6 Installing the electrode clip ..............6 Installing the IP54 seal components ..........6 Integrated stand for table top use ............. -
Page 3: Introduction
STARTER 300 Portable pH Meter INTRODUCTION Thank you for choosing OHAUS. Please read the manual completely before using the STARTER 300 portable pH meter to avoid incorrect operation. STARTER 300 has an excellent performance/price ratio and is designed with many useful features. -
Page 4: Safety Precautions
EN-2 STARTER 300 Portable pH Meter Safety Precautions CAUTION: Read all safety warnings before installing, making connections, or servicing this equipment. Failure to comply with these warnings could result in personal injury and/or property damage. Retain all instructions for future reference. Use the equipment only in dry locations. -
Page 5: Display And Controls
STARTER 300 Portable pH Meter Display and controls Displays Electrode condition Slope: more than 95% Slope: 90-95% Slope: less than 90% and offset: ± (0-15) mV or offset: ± (15-35) mV or offset: ± (>35) mV Electrode condition is good Electrode condition is Electrode condition is not acceptable... - Page 6 EN-4 STARTER 300 Portable pH Meter Controls Button Press & release Press & hold for 3 seconds - Start or endpoint measurement - Confirm setting, store entered - Turn auto endpoint on / off value - Start calibration - Review the latest calibration data (slope, offset) - Meter turn on - Return to measurement screen...
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Page 7: Installation
1 set ST320 3-in-1 gel pH electrode Each pH buffer powder should be dissolved in 250ml pure water or deionized water in volumetric flask. Additional Ohaus pH electrodes are available for various applications: Model Description ST310 3-in-1 plastic refillable pH Electrode... -
Page 8: Installing The Batteries
EN-6 STARTER 300 Portable pH Meter Installing the batteries Remove the battery cover screw using a coin or screwdriver and remove the battery cover. Insert the batteries in the battery compartment as shown. Replace the battery cover and tighten the battery cover screw. Installing the electrode clip The electrode clip is an electrode holder that can be placed on either side of the housing. -
Page 9: Integrated Stand For Table Top Use
STARTER 300 Portable pH Meter Integrated stand for table top use STARTER 300 has an integrated table stand as shown, which can be pushed out to use the meter on a lab bench or desk. To close the stand, push the middle edge of the stand toward the meter. 1.888.610.7664 www.calcert.com sales@calcert.com... -
Page 10: Starter 300 Setup
EN-8 STARTER 300 Portable pH Meter STARTER 300 SETUP Set temperature unit and MTC value Please note: If a temperature electrode is used, Automatic Temperature Compensation (ATC) and the sample temperature are displayed on the screen. You may then choose to skip MTC setup (below). If the meter does not detect a temperature electrode or one is not used, the meter automatically switches to Manual Temperature Compensation (MTC) mode and MTC appears on the screen. -
Page 11: Starter 300 Operation
STARTER 300 Portable pH Meter EN-9 STARTER 300 OPERATION The basic procedure for pH measurement is as follows: pH electrode preparation buffer preparation and pH electrode calibration sample preparation pH measurement Record measurement results Rinse the pH electrode and store properly For pH electrode preparation: pH electrode should be rinsed with pure water before and after using. -
Page 12: Performing 1-Point Calibration
Offset: the mV value when pH value is 7.00. (Theoretical value is 0 mV); 4.1.2 Performing 1-point calibration When performing calibration, Ohaus recommends using Auto End Point Mode. After powering the meter on, be sure the top of the screen shows to ensure the meter is in Auto End point Mode. -
Page 13: Performing 2-Point Calibration
The meter reaches the calibration (e.g. 7.00) value with the temperature display on the screen. The 1-point calibration is finished. There are now 3 options (OHAUS recommends conducting at least a 2 point calibration); Press button-... -
Page 14: Sample Measurement
EN-12 STARTER 300 Portable pH Meter Sample measurement 4.2.1 pH measurement Place the electrode in the sample, stir for 10 seconds, and wait 30-60 seconds. Press button- to start the pH measurement, appears on the display. is blinking during measurement. When meter reaches the proper value, the pH value with the temperature is displayed on the screen. -
Page 15: Clearing The Memory
STARTER 300 Portable pH Meter EN-13 4.4.3 Clearing the memory Pressing button- or button- to scroll through the stored results until “MRCL” appears. Press button- , CLr blinks; There are now two choices: Press button- to confirm the deletion of all the stored data. Press button- to return to the measurement mode without deleting the memory. -
Page 16: Maintenance
An endpoint reading can only be stored once. already been stored once Perform a new measurement to store. For further technical support please contact Ohaus. (US please contact 1-800-672-7722) Meter maintenance Never unscrew the two halves of the housing! The STARTER 300 series instruments do not require any maintenance other than replacement of depleted batteries. -
Page 17: Self-Diagnosis
STARTER 300 Portable pH Meter EN-15 Self-diagnosis Press and hold simultaneously until the meter displays the full screen. Each icon blinks one after the other. This checks whether all icons are correctly shown. The next step is to check that the keys are functioning correctly. -
Page 18: Technical Data
EN-16 STARTER 300 Portable pH Meter TECHNICAL DATA Specifications Ambient conditions Altitude: Up to 2000 m Specified Temperature range: 5°C to 40°C Humidity: maximum relative humidity 80 % for temperatures up to 30°C decreasing linearly to 50% relative humidity at 40°C Installation category: N/A Pollution degree: N/A Operability is assured at ambient temperatures between 5°C to 40°C... -
Page 19: Compliance
ISO 9001 Registration In 1994, OHAUS Corporation, USA, was awarded a certificate of registration to ISO 9001 by Bureau Veritus Quality International (BVQI), confirming that the OHAUS quality management system is compliant with the ISO 9001 standards requirements. On June 21, 2012, OHAUS Corporation, USA, was re-registered to the ISO 9001:2008 standard. -
Page 20: Buffer Group
EN-18 STARTER 300 Portable pH Meter BUFFER GROUP STARTER 300 automatically corrects for the temperature dependence of the buffer group pH value given in the following tables (b2, b3, b4), you can find b1 in 3.1.1. Buffer group b2 Europe standard Temp pH2.00 pH4.01... - Page 21 Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer.