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SETUP

1. Choose the power source.

Before using the DOM5512SD, be sure it is powered by

fresh batteries or an optional 9VDC AC adapter plugged into the bottom jack on its right
side (callout 1-14).

To remove the battery compartment cover, remove the two screws holding it in place
(callout 1-11). Then install six “AA” batteries in the correct orientation, using the polarity
marks on the inside of the compartment as a guide. Replace the cover by replacing the
two screws.

2. Install an SD card.

To prepare for setup, also install the supplied 2 GB SD memory

card or another card with a capacity from 1 GB to 16 GB in the socket on the bottom of
the DOM5512SD (callout 1-17). When installing the card, make sure its gold contacts
are facing front and push the card into the socket until you hear a click. To remove the
card, push it in until you hear a click and the card pops out.

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. Once
the display has stabilized, perform the following ten setup steps in the order presented.

3. Format the SD card.

Press the LOGGER SET button (callout 1-8) and hold it for at least

five seconds, until “Sd-F” appears in the lower half of the display. Quickly (within three
seconds) press the REC/ENTER button.

(If you press buttons too slowly in setup mode, the screen will revert to the normal
display. To return to the setup sequence, press and hold the LOGGER SET button again. 
To move ahead to the next field in the sequence or to the next parameter, press the
HOLD/ESC button.)

Pressing the REC/ENTER button causes the word “no” or “yES” to appear over the term
“Sd-F”. Press the

button to make a selection. Choose “yES” whenever a new SD card

is being used, or when a used card is being repurposed (from use with another SD card
instrument or a camera, for example) and all data on it is to be erased. Choose “no” to
preserve any data on a card previously used with this instrument.

If you choose “yES”, after you press the REC/ENTER button the instrument will prompt
you to confirm that decision by displaying the term “Ent” below “yES” and sounding three
beeps. To confirm that you want to begin the erasure/formatting procedure, press the
REC/ENTER. “Ent” will then flash several times and the instrument will sound another
three beeps to confirm that the SD card has been erased and formatted.

4. Set the date and time.

Once the SD card has been set up, the word “dAtE” will appear

in the center of the display, along with the flashing value “00.00.00” at the lower left,
above “yy.mm.dd”. Set the current year by pressing the

or

button repeatedly until

the correct value appears above “yy”. Press the REC/ENTER button to store the setting.
The next screen that appears will have the value above “mm” flashing. Use the

or

6

Содержание DOM5512SD

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

Страница 2: ... the Oxygen Probe 8 9 Normal Operation 9 10 Holding and Storing Measurements 10 Automatic vs Manual Datalogging 11 Transferring Data from the SD Card to a Computer 12 13 Specifications 13 14 Maintenance Troubleshooting Tips 14 Replacement Parts Optional Accessories 15 Warranty Information 15 Return for Repair Policy 15 2 ...

Страница 3: ... an instrument suitable for precision measurement of DO levels in a wide range of applications Its 7 5 in long polarographic electrolyte filled oxygen probe measures not only the DO concentration of a liquid but the liquid s water temperature as well The meter uses a single custom microcontroller to display readings from 0 to 20 milligrams liter mg L with a resolution of 0 1 mg L and an accuracy o...

Страница 4: ...display 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 Two spare probe heads with diaphragm set A 2 GB SD memory card This user s manual Figure 1 shows all of the control...

Страница 5: ...LD ESC button 1 4 REC ENTER button 1 5 button 1 6 button 1 7 TIME button 1 8 LOGGER SET button 1 9 Kickstand 1 10 Battery compartment cover 1 11 Battery compartment cover screws 1 12 Tripod attachment nut 1 13 Socket for DO probe 1 14 Socket for 9V AC DC adapter 1 15 RESET button 1 16 RS 232 output jack 1 17 SD card socket TOP RIGHT SIDE BACK BOTTOM FRONT ...

Страница 6: ... in the lower half of the display Quickly within three seconds press the REC ENTER button If you press buttons too slowly in setup mode the screen will revert to the normal display To return to the setup sequence press and hold the LOGGER SET button again To move ahead to the next field in the sequence or to the next parameter press the HOLD ESC button Pressing the REC ENTER button causes the word...

Страница 7: ...e the selection If enabled the power off function shuts off the DOM5512SD after a period of inactivity of ten minutes 7 Enable or disable the beeper Once the auto power off function has been enabled or disabled the display will show the word yES over the word bEEP Press the button until the desired setting yES or no is displayed and then press the REC ENTER button to store the selection 8 Choose a...

Страница 8: ...erm ESC If ESC appears press the HOLD ESC button to exit the setup procedure and enter normal operating mode In this mode the display will show 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 pr...

Страница 9: ...ers to press the REC ENTER and HOLD ESC buttons at the same time Release your fingers once the display shows the following indicating that air typically has an oxygen content of 20 9 20 9 CAL 8 Press the REC ENTER button The display will then count down from 30 seconds to 0 When the countdown is complete press the button once to return to the normal display of mg L NORMAL OPERATION 1 To measure th...

Страница 10: ... you can turn off the backlight which is on by default by briefly pressing but not holding the POWER ESC button To reactivate the backlight briefly press the button again Whenever the instrument is in measurement mode you also can check the current date and time by briefly pressing the TIME button Doing so causes both values to appear briefly at the lower left of the display HOLDING AND STORING ME...

Страница 11: ...g Step 5 of the setup procedure Then press the REC ENTER button once The display will show the term REC on the top line a value in the middle and below it the letter P on the left and a number from 1 to 99 on the same line to the right The number indicates the position on the SD card that will be used to store manually logged data Now press the LOGGER SET button This will cause the beeper to sound...

Страница 12: ... has an SD card slot or through an SD card reader Because the files containing time stamped data logs have the extension xls they open in Microsoft s Excel application Figures 4 5 and 6 show three kinds of Excel presentations a data only screen a graphics only screen and a screen that mixes both types of content 12 Fig 5 Typical Excel graphics only screen Fig 4 Typical Excel data only screen ...

Страница 13: ...ent accuracy 0 4 mg L Oxygen in air measurement range 0 to 100 Oxygen in air measurement resolution 0 1 O2 Oxygen in air measurement accuracy 0 7 O2 Temperature measurement range 32º to 122ºF 0º to 50ºC Temperature measurement resolution 0 1ºF or ºC Temperature measurement accuracy 1 5ºF 0 8ºC Compensation for temperature Automatic Compensation for altitude 0 to 29 200 ft 0 to 8 900 meters Fig 6 T...

Страница 14: ...ratic first make sure that the probe head contains enough fresh electrolyte To fill the head with electrolyte follow the instructions in the Calibrating the oxygen probe section If that doesn t solve the problem replace the probe head diaphragm set In either event the next step should be to recalibrate the probe When the icon appears in the left corner of the display it s time to replace the six A...

Страница 15: ...horized service center freight prepaid and insured 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 fees expenses or losses alleged to be a consequence of any damage due to failure of or de...

Страница 16: ...1 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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