Drawell DW-PH6175 Operating Manual
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Drawell DW-PH6175 Operating Manual

Microcomputer based ph/orp/ temperature benchtop meter
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Operation Manual
DW-PH6175
Microcomputer Based
pH/ORP/Temperature
Benchtop Meter
Drawell International Technology Limited
Shanghai Drawell Scientific Instrument Co.,Ltd
Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong
New Area,Shanghai,China
Tel: 0086 21 50966080
Fax: 0086 21 50966080
Web : www.drawell.com.cn
Email : sales01@drawell.com.cn
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Summary of Contents for Drawell DW-PH6175

  • Page 1 Operation Manual DW-PH6175 Microcomputer Based pH/ORP/Temperature Benchtop Meter Drawell International Technology Limited Shanghai Drawell Scientific Instrument Co.,Ltd Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong New Area,Shanghai,China Tel: 0086 21 50966080 Fax: 0086 21 50966080 Web : www.drawell.com.cn Email : sales01@drawell.com.cn...

  • Page 2: Table Of Contents

    CONTENTS GENERAL INTRODUCTION…………………....2 INITIAL INSPECTION……...………………....2 POWER INPUT…….……...………………....2 INSTALLING THE BATTERIES..…………....3 DISPLAY & KEYS FUNCTIONS…..……………..…...…..3 ..............3 A. Display .................4 B. Keys OPERATIONAL PROCEDURES..……......5 ...........5 A. Buffer Set Selection ............6 B. pH Calibration a. Calibration with an ATC/Temp probe in the pH-AUTOLOCK ..............6 Mode b.

  • Page 3: General Introduction

    INITIAL INSPECTION Carefully unpack the unit and accessories. Inspect for damages made in shipment. If any damage is found, notify your Drawell representative immediately. All packing materials should be saved until satisfactory operation is confirmed. POWER INPUT...

  • Page 4: Installing The Batteries

    AC adaptor supplied with the instrument to make sure that the AC line voltage is correct. If the wrong AC adaptor is supplied, notify your Drawell representative immediately. INSTALLING THE BATTERIES To insert the batteries into the meter, follow the procedure outlined below.

  • Page 5: Keys

    1. WAIT- 7. AUTO This will be displayed when the AUTOLOCK mode indicator. unit is still waiting for a stable reading or end point sensing. 8. Buffer selection This indicator will flash if the 2. BAT- unit is not yet calibrated. This Low battery indicator.

  • Page 6: Operational Procedures

    Clear- It is used to clear the unit when error signal appears. It clears all calibration values stored in the internal memory. Under normal use the key will not be activated unless pressed and held for 2 seconds to prevent accidental lear erasing stored memory.

  • Page 7: Ph Calibration

    B. pH Calibration The pH6175 uses one, two or three point calibration. The 6175-3C uses two or three point calibration. [Note: If the unit uses two or three point calibration, the first point must be 6.86/7.00, and the second point can either be 4.00/4.01 or 9.18/ 10.01.] Calibration with an ATC/Temp probe in the pH-AUTOLOCK mode.

  • Page 8: Calibration With Manual Temperature Compensation In The Ph Autolock Mode

    exit the calibration mode. Dual point calibration is complete.] Rinse the pH and ATC/Temp probe in distilled water and immerse them in the third buffer solution (either 9.18/10.01 or 4.00/4.01). Allow temperature reading to stabilize, then press “Slope” key to calibrate. The “WAIT” icon will flash until the unit detects a stable reading.

  • Page 9: Calibration With An Atc/Temp Probe In The Ph Non

    Calibration with an ATC/Temp probe in the pH NON- AUTOLOCK mode. Turn the unit on. Press “Clear” key for 2 seconds, all LCD elements will lit up. The meter clears all calibration values stored in internal memory. Connect the pH electrode to the BNC connector and the ATC/Temp probe to the ATC/Temp connector of the unit: “ATC”...

  • Page 10: Calibration With Manual Temperature Compensation In The Ph Non-Autolock Mode

    key for about 5 seconds to display the new electrode efficiency. Calibration with manual temperature compensation in the pH NON-AUTOLOCK mode. Turn the unit on. Press “Clear” key for 2 seconds, all LCD elements will lit up. The meter clears all calibration values stored in internal memory.

  • Page 11: Measurement With Manual Temperature Compensation In The Ph Autolock Mode

    Press “Mode” key until “pH” icon and “AUTO” icon lit up. Rinse the pH electrode and ATC/temp probe with distilled water and immerse in the sample to be measured. Remove any air bubbles trapped around the probe by shaking or stirring the probe.

  • Page 12: Temperature Measurements

    Connect the pH electrode to the BNC connector of the unit. The “MAN” icon will lit up. Set unit to display the sample temperature by pressing the up and down keys(0.0 to 100.0℃). Repeat steps 2~4 of “Measurement with an ATC/Temp probe in the pH NON- AUTOLOCK mode”.

  • Page 13: Ph Buffers

    will display the mV value of the sample. pH BUFFERS The temperature coefficient of pH calibration buffers 4.01, 6.86, 7.00,9.18 and 10.01 are stored inside the instrument. The buffers used to calibrate the instrument must exhibit the same temperature characteristics as the stored values. Temperature coefficient of the pH buffers 4.00 6.86...

  • Page 14: Error Displays And Troubleshooting

    Main Possible cause(s) Corrective Action(s) Display 1. “Stand” was pressed 1. Press “Clear” key, allow before the electrode and sufficient time for the ATC/Temp probe settled electrode and ATC/Temp to within +/-1.0 pH of the probe to stabilize, re-press buffer value. “Stand”...

  • Page 15: Specifications

    [Note: If the meter still does not perform normally after the above measures are taken, call Drawell representative.] SPECIFICATIONS Display Range Resolution Accuracy 0.00 to 14.00 pH 0.01 pH ±0.01 pH mV(6175-3C) -1999 to 1999 mV 1 mV ±1 mV mV(pH6175) -1999.9 to 1999.9 mV...

  • Page 16: Warranty

    If you purchased the item from our Drawell distributors and it is under warranty, please contact them to notify us of the situation.
  • Page 17 Drawell International Technology Limited Shanghai Drawell Scientific Instrument Co.,Ltd Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong New Area,Shanghai,China Tel: 0086 21 50966080 Fax: 0086 21 50966080 Web : www.drawell.com.cn Email : sales01@drawell.com.cn...

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