Related Manuals for OHAUS ST400D
Summary of Contents for OHAUS ST400D
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Page 1: Service Manual
SERVICE MANUAL STARTER Portable Meter ST300 ST300C ST300D ST400D Ohaus Corporation, 7 Campus Drive, Suite 310, Parsippany, NJ 07054 (973) 377-9000... - Page 2 ST400D The information contained in this manual is believed to be accurate at the time of publication, but Ohaus Corporation assumes no liability arising from the use or misuse of this material. Reproduction of this material is strictly prohibited. Material in this manual is subject to change.
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Page 3: Table Of Contents
CHAPTER 3 RESET TO FACTORY SETTINGS 3.1. Recover Factory Settings ..................3-1 Error Message ......................3-2 CHAPTER 4 DRAWINGS AND PARTS LISTS Starter ST300, ST300C and ST300D: Housing & Internal Parts .......4-2 Starter ST400D: Housing & Internal Parts ..............4-3 LIST OF TABLES TABLE NO. TITLE Page No. - Page 4 Battery Spring ......................2-3 Replacing Main PCBA ..................2-3 ST400D Internal Battery Location ................2-4 ST400D Factory Default Screen ................3-1 Housing & Internal Parts ST300, ST300C & ST300D ..........4-2 Housing & Internal Parts ST400D ................4-3 Valor™ 7000 Series Service Manual Ohaus Corporation www.ohaus.com...
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Page 5: Chapter 1 Getting Started
INTRODUCTION This service manual contains the information needed to perform routine maintenance and service on the Ohaus Starter ST300, ST300C, ST300D and ST400D Series portable meters. Familiarity with the meter’s Instruction Manual is assumed. The contents of this manual are contained in five chapters: Chapter 1 Getting Started –... -
Page 6: Safety Precaution
TOOLS AND TEST EQUIPMENT REQUIRED The service shop should contain the following equipment: 1. Standard hand tools. 2. Digital Voltmeter (DVM). 3. Standard Electronics tool kit. 4. Grounding mat and clip. Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual... -
Page 7: Specifications
CHAPTER 1 GETTING STARTED SPECIFICATIONS Complete specifications for the Ohaus Starter portable meters are listed in Table 1-1. When a meter has been serviced, it must meet the specifications listed in the table. Before servicing the meter, determine what specifications are not met. - Page 8 99 sets, last calibration data Memory 4 x AAA(LR03) batteries, 12 hrs Power 90 W x 150 D x 35 H mm Size/Weight 0.16kg Weight liquid crystal Display IP54 IP rating Mini-Din T input Materials Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual...
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Page 9: Meter Operation Starter 300
CHAPTER 1 GETTING STARTED METER OPERATION – STARTER ST300 This section contains information on the basic operation of the Starter ST300 meter. 1.7.1 OVERVIEW OF THE CONTROLS Displays Figure 1-1. ST300 display Electrode condition Slope: more than 95% Slope: 90-95% Slope: less than 90% and offset: ±... - Page 10 CHAPTER 1 GETTING STARTED TABLE 1-2. Control functions ST300 Notes: Short Press: Press less than 1 seconds. Long Press: Press and hold for more than 2 seconds. Press and hold the Off button until OFF is displayed, then release the button.
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Page 11: Overview Of The Controls
TDS factor in the setup mode Conductivity / TDS / Cell Constant Calibration point Cal / Buffer group /Memory number MR / Error index Err Temperature during measurement or reference temperature in setup mode Starter Series Portable Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 12 Short Press: Press less than 1 seconds. Long Press: Press and hold for more than 2 seconds. Press and hold the Off button until OFF is displayed, then release the button. Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual...
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Page 13: Overview Of The Controls
Calibration point Cal / Buffer group /Memory number MR / Error index Err Auto temperature compensation - ATC ; Manual temperature compensation - 11 Temperature during measurement or reference temperature in setup mode Starter Series Portable Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 14 CHAPTER 1 GETTING STARTED TABLE 1-4. Control functions ST300D Ohaus Corporation www.ohaus.com 1-10 Starter Series Portable Meter Service Manual...
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Page 15: Overview Of The Controls
DO reading: mg/L and % Temperature during measurement or in calibration process 10 Barometric pressure during measurement or in calibration process 11 Data log: memory number 12 ppt for salinity entry Starter Series Portable Meter Service Manual 1-11 Ohaus Corporation www.ohaus.com... - Page 16 - Store current reading to memory - Recall stored data - Increase value during setting - Scroll up through the memory - Enter setup screen - Scroll down through the memory - Reset factory setting Ohaus Corporation www.ohaus.com 1-12 Starter Series Portable Meter Service Manual...
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Page 17: Chapter 2 Maintenance Procedures
PREVENTIVE MAINTENANCE ATTENTION: remove the AAA batteries before cleaning the meter. Ohaus meters are precision instruments and should be carefully handled, stored in a clean, dry, dust-free area, and cleaned periodically. The meter housing may be cleaned with a cloth dampened with a mild detergent if necessary. - Page 18 2. Remove the two screws securing the main PCBA to the bottom housing. (See Figure 2-2) Figure 2-2. Screws (marked with yellow circles) that secure the main PCBA to bottom housing. Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual...
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Page 19: Battery Spring
6. Reconnect the battery spring and install back the two screws which securing the main PCBA to bottom housing. 7. Insert back the housing rubber ring in position. 8. Re-install the top housing. Starter Series Portable Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 20 4. Check and re-set the date and time if necessary. (Kindly refer to ST400D Instruction Manual). Figure 2-5. Location of the battery at the back of the main PCBA. (Type CR2032) Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual...
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Page 21: Chapter 3 Reset To Factory Settings
CHAPTER 3 RESET TO FACTORY SETTINGS Recover factory settings For ST300, ST300C and ST300D proceed as below: When the meter is off, press and hold button-Read & button-Cal & button-Exit and blinks, means “Reset”. Then simultaneously for 3 seconds, the screen displays we have 2 choice: ... -
Page 22: Error Message
The current data set has An endpoint reading can only be stored already been stored once once. Perform a new measurement to store. TABLE 3-1. ST300 Error Message. 3.2.2 Error message ST300C Error 0 Memory access error Reset to factory settings... -
Page 23: Error Message St300D
|K-1| >0.4 or a |B| >0.1 You may need to do a proper calibration again, if calibration data is still not good, you may need to replace a new probe cap or probe. Starter Series Portable Meter Service Manual 3-3 Ohaus Corporation www.ohaus.com... - Page 24 The current data set has Meter displays" Already saved!" already been stored once A measurement can only be stored once. Perform a new measurement to store a new data set. TABLE 3-4. ST400 Error Message. Ohaus Corporation www.ohaus.com Starter Series Portable Meter Service Manual...
- Page 25 CHAPTER 4 PARTS LISTS & DIAGRAMS This section of the manual contains exploded views of the Starter ST300, ST300C, ST300D and ST400D portable meter. The exploded view drawings are designed to identify the parts which can be serviced on the portable meter in the field.
- Page 26 SP Overlay ST300x EN SP Overlay ST300x ZH SP PCBA ST300x EN SP PCBA ST300x ZH SP Cover Battery Note: For parts numbers, see your local Ohaus distributor, or visit www.ohaus.com. Ohaus Corporation www.ohaus.com Starter Series Portable Series Service Manual...
- Page 27 SP Housing STARTER 400D SP Overlay ST400D EN SP Overlay ST400D ZH SP PCBA ST400D SP Cover Battery Note: For parts numbers, see your local Ohaus distributor, or visit www.ohaus.com. Starter Series Portable Series Service Manual 4-3 Ohaus Corporation www.ohaus.com...
- Page 29 *30257132* P/N 30257132A SERVICE MANUAL: Starter Portable Series...
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