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SERVICE MANUAL

  STARTER 2100 Bench pH Meter
  STARTER 3100 Bench pH Meter
  STARTER 3100C Bench pH Meter

STARTER 3100M Bench pH and Conductivity Meter

Ohaus Corporation, 7 Campus Drive, Suite 310, Parsippany, NJ 07054 (973) 377-9000

Содержание ST3100M

Страница 1: ...UAL STARTER 2100 Bench pH Meter STARTER 3100 Bench pH Meter STARTER 3100C Bench pH Meter STARTER 3100M Bench pH and Conductivity Meter Ohaus Corporation 7 Campus Drive Suite 310 Parsippany NJ 07054 97...

Страница 2: ...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...

Страница 3: ...R 2 MAINTENANCE PROCEDURES 2 1 Preventive Maintenance 2 1 2 2 Service Strategy 2 1 2 3 Opening the Meter 2 1 2 2 1 Separating the Top and Bottom Housings 2 1 2 4 Removing Replacing the Main Printed Ci...

Страница 4: ...om LIST OF ILLUSTRATIONS FIGURE NO TITLE 1 1 Starter 2100 Display 1 3 1 2 Starter 3100 Display 1 5 1 3 Starter 3100C Display 1 7 2 1 Screws securing Top Housing 2 1 2 2 Main Printed Curcuit Board 2 2...

Страница 5: ...edures Chapter 3 Reset to factory settings Explains procedures for resetting the meter to factory default settings Chapter 4 Drawings and Parts Lists Contains exploded views of the products identifyin...

Страница 6: ...service a meter the service area should meet the following requirements Should be temperature controlled and meet meter specifications for temperature environmental requirements Area must be clean an...

Страница 7: ...ww ohaus com 1 6 SPECIFICATIONS Complete specifications for the Ohaus Starter Bench meters are listed in Table 1 1 When a meter has been serviced it must meet the specifications listed in the table Be...

Страница 8: ...01 S cm Auto range TDS 0 01 mg L Auto range Resistivity 0 01 cm Auto range Salinity 0 01 psu Temperature 0 1 C Error Limits Accuracy pH 0 01 pH mV 1mV Conductivity etc 0 5 F S Temperature 0 3 C Calib...

Страница 9: ...ration www ohaus com Spec ST3100M Input pH BNC impedance 10e 12 Conductivity Mini Din Temperature Cinch NTC 30 k Data RS232 Temp Compensation ATC or MTC Temp Compensation Range pH 0 C 100 C for pH Con...

Страница 10: ...than 95 and offset 0 15 mV Electrode condition is good Slope 90 95 or offset 15 35 mV Electrode condition is acceptable Slope less than 90 or offset 35 60 mV Electrode condition is not good or needs...

Страница 11: ...CHAPTER 1 GETTING STARTED Starter Series Bench Meter Service Manual 1 7 Ohaus Corporation www ohaus com...

Страница 12: ...ration www ohaus com 1 8 Starter Series Bench Meter Service Manual 1 8 METER OPERATION ST3100 This section contains information on the basic operation of the ST3100 meter 1 8 1 OVERVIEW OF THE CONTROL...

Страница 13: ...CHAPTER 1 GETTING STARTED Starter Series Bench Meter Service Manual 1 9 Ohaus Corporation www ohaus com TABLE 1 3 Control functions ST3100...

Страница 14: ...n www ohaus com 1 10 Starter Series Bench Meter Service Manual 1 9 METER OPERATION ST3100C This section contains information on the basic operation of the Starter 3100C meter 1 9 1 OVERVIEW OF THE CON...

Страница 15: ...CHAPTER 1 GETTING STARTED Starter Series Bench Meter Service Manual 1 11 Ohaus Corporation www ohaus com TABLE 1 4 Control functions ST3100C...

Страница 16: ...is not good or needs cleaning 2 Endpoint stability icon Auto endpoint icon 3 Measurement icon means measurement or calibration is running when blinks 4 Calibration icon means calibration in progress...

Страница 17: ...h measurement Confirm setting store entered value Turn auto endpoint on off Start calibration Recall the latest calibration data slope and offset Meter turn on Exit and return to measurement screen Me...

Страница 18: ...Printed Circuit Board PCB For an illustrated list of replaceable parts see Chapter 4 2 3 OPENING THE METER Use these procedures in order to replace the Printed Circuit Board and the cables if applicab...

Страница 19: ...control button cable connector in order to isolate the top housing away from the bottom housing 3 Remove the four screws that secure the PCB to the bottom housing Fig 2 2 4 Lift out the PCB 5 Positio...

Страница 20: ...ings When the meter is off press and hold button Read button Cal button Exit together for 3 seconds the screen displays and blinks means Reset Then we have 2 choice Press button Read to reset factory...

Страница 21: ...RY SETTINGS Ohaus Corporation www ohaus com 3 2 Starter Series Bench Meter Service Manual 3 2 Error message 3 2 1 Error message ST2100 3 2 2 Error message ST3100 TABLE 3 1 ST2100 Error Message TABLE 3...

Страница 22: ...CHAPTER 3 RESET TO FACTORY SETTINGS Starter Series Bench Meter Service Manual 3 3 Ohaus Corporation www ohaus com 3 2 3 Error message ST3100C TABLE 3 3 ST3100C Error Message...

Страница 23: ...e 5 or 40 C Keep the pH buffer temperature within the range for calibration Error 4 Offset out of range offset 60mV or 60 mV Make sure the pH buffer is correct and fresh Clean or replace the pH electr...

Страница 24: ...if the electrode is properly connected and placed in the sample solution Error 3 Measured standard temperature out of range 5 35 C Keep the standard temperature within the range for calibration Error...

Страница 25: ...fications in this manual Step to confirm the meter operates within specification 1 Obtain a known good working condition electrode and buffer solution in hand 2 Link the electrode to the portable mete...

Страница 26: ...ch Meter PARTS Figure 4 1 Starter Series Bench Meter Parts TABLE 4 1 Starter Series Bench Meter PARTS Drawing Item Description 1 Acc In use cover 2 SP Overlay EN ZH 3 SP PCBA 4 SP Screw and feet set f...

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Страница 28: ...30332138B P N 30332138B SERVICE MANUAL Starter Bench Top Series...