General DOM5512SD User Manual
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General DOM5512SD User Manual

Dissolved oxygen meter with datalogging sd card
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DOM5512SD
USER'S MANUAL
DISSOLVED OXYGEN METER
WITH DATALOGGING SD CARD
Please read this manual carefully and thoroughly before using this product.

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Summary of Contents for General DOM5512SD

  • Page 1 DOM5512SD USER’S MANUAL DISSOLVED OXYGEN METER WITH DATALOGGING SD CARD Please read this manual carefully and thoroughly before using this product.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction ....... . . 3 Key Features ....... . 4 Operating Instructions .

  • Page 3: Introduction

    USB card reader. The data logs are stored on the card as files with the .xls extension that can be opened by Microsoft’s Excel application. The DOM5512SD has a backlit 1.5 x 2.0 in. display and is powered by six “AA” Alkaline batteries or an optional 9-VDC AC adapter.

  • Page 4: Key Features

    • Powered by six “AA” batteries or optional 9-VDC adapter • Readings switchable between ºF and ºC OPERATING INSTRUCTIONS WHAT’S IN THE CASE The DOM5512SD comes fully assembled in a hard carrying case along with the following accessories: • An oxygen probe • Electrolyte to fill the probe •...
  • Page 5 FRONT BOTTOM BACK RIGHT SIDE Fig. 1. The controls and indicators and other physical features of the DOM5512SD 1-1 Liquid-crystal display 1-10 Battery compartment cover 1-2 POWER button 1-11 Battery compartment cover (also controls backlight) screws 1-3 HOLD/ESC button 1-12 Tripod attachment nut...

  • Page 6: Setup

    Now power on the instrument by pressing the POWER button (callout 1-2) to generate a short beep. (To power off the DOM5512SD, press the POWER button and hold it until the instrument responds with a long beep.) When the meter powers on, a series of transient startup screens will briefly appear.
  • Page 7 (“yES” for enable; “no” for disable) is displayed. Press the REC/ENTER button to store the selection. If enabled, the power off function shuts off the DOM5512SD after a period of inactivity of ten minutes.

  • Page 8: Calibrating The Oxygen Probe

    “mg/L” units by default. CALIBRATING THE OXYGEN PROBE The DOM5512SD’s oxygen probe must be calibrated before you use it for the first time, and again before each use after a long period (weeks or months) of sitting idle. General also recommends calibrating the probe before making any measurements that must be extremely precise.

  • Page 9: Normal Operation

    3-4 – Probe head 3-5 – Probe head protective cover 3. Plug the probe plug into the DO probe socket at the top of the DOM5512SD. 4. Power on the instrument by pressing the POWER button on the front panel once.

  • Page 10: Holding And Storing Measurements

    To return to “mg/L” readings, press the M button again. Whenever the DOM5512SD is in measurement mode, you can turn off the backlight (which is on by default) by briefly pressing (but not holding) the POWER/ESC button.

  • Page 11: Automatic Vs. Manual Datalogging

    AUTOMATIC VS. MANUAL DATALOGGING The DOM5512SD can automatically log data at a user-selected sampling period from 1 second to 9 hours. To view the sampling time for which the instrument was set up, press the LOGGER SET button (which has the words “Sampling check” stenciled below it) once.

  • Page 12: Transferring Data From The Sd Card To A Computer

    TRANSFERRING DATA FROM THE SD CARD TO A COMPUTER After automatic or manual datalogging of measurements, remove the SD card from the DOM5512SD and plug it into your computer either directly (if it has an SD card slot) or through an SD card reader.

  • Page 13: Specifications

    Fig. 6. Typical Excel mixed graphics/data screen SPECIFICATIONS Embedded microcontroller Custom single-chip LSI device Display type Liquid-crystal with green backlight Display size 2.0 x 1.5 in. (52 x 38mm) DO measurement range 0 to 20 mg/L DO measurement resolution 0.1 mg/L DO measurement accuracy ±...

  • Page 14: Maintenance & Troubleshooting Tips

    Compensation for liquid salt content 0 to 50% Datalogging sampling time range 1 second to 8 hours, 59 minutes, 59 seconds DO probe type Polarographic SD memory card capacity 1 GB to 16 GB Power source 6 Alkaline “AA” batteries or 9-VDC adapter Power consumption 14 mADC (normal operation, with backlight off...

  • Page 15: Replacement Parts & Optional Accessories

    Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product. In no event shall General be liable for any incidental, special, consequential or punitive damages, or for any cost, attorneys’...
  • Page 16 New York, NY 10013-3567 PHONE (212) 431-6100 FAX (212) 431-6499 TOLL FREE (800) 697-8665 e-mail: sales@generaltools.com www.generaltools.com DOM5512SD User’s Manual Specifications subject to change without notice ©2010 GENERAL TOOLS & INSTRUMENTS NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS. MAN#DOM5512SD 12/08/10...

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