Sper scientific 850039 User manual

Datalogging Conductivity/

TDS Meter

850039

Instruction Manual

TABLE OF CONTENTS

1. INTRODUCTION..................................................................................3

2. PANEL DESCRIPTION.........................................................................4

3. MEASURING PROCEDURE................................................................5

3-A General Measurement ...................................................................5

3-B Auto and Manual Range Modes ....................................................5

3-C Data Hold ......................................................................................5

3-D Maximum / Minimum .....................................................................6

3-E Data Logger...................................................................................6

4. ADVANCED ADJUSTMENTS...............................................................6

4-A Check Remaining Available of Data Points....................................7

4-B Clear Memory ................................................................................7

4-C Date/Time Setting..........................................................................7

4-D Sample Time Setting .....................................................................7

4-E Auto Power O󰀨 Default Setting ......................................................7

4-F Temperature Unit Default Setting...................................................8

4-G Temperature Compensation Default Setting .................................8

4-H Conductivity (uS, mS), TDS (PPM) Default Setting.......................8

4-I Escape from Advanced Adjustments ............................................8

5. BATTERY REPLACEMENT .................................................................9

6. TROUBLESHOOTING .........................................................................9

7. OPTIONAL ACCESSORIES.................................................................9

8. OFFSET (ZERO) PROCEDURE..........................................................9

9. CONDUCTIVITY CALIBRATION........................................................10

10. SPECIFICATIONS............................................................................ 11

11. WARRANTY ....................................................................................12

1. INTRODUCTION

Automatically records up to 16,000 (!) data points in the eld along with

time and date.

Features

• reads total dissolved solids in TDS or PPM

• simultaneously displays conductivity and temperature

• manual or auto-range

• min-max

• adjustable ATC coe󰀩cient

• calendar/clock

• auto power o󰀨

• hold function

• detachable probe

• fold-out tripod

• large easy to read LCD

Comes ready to use in a protective foam lined carrying case complete

with probe, 4 AA batteries, and one 3V button cell battery.

2. PANEL DESCRIPTION

DISPLAY

2 POWER button

3 HOLD / ESC button

4 REC / ENTER button

5 ▲(UP) button

6 RANGE / ▼(DOWN) button

7CLOCK/ SEND button

8 LOGGER / SET button

9 TRIPOD SCREW

10 STAND

11 BATTERY COMPARTMENT/COVER

12 PROBE INPUT

13 LCD BRIGHTNESS ADJUSTMENT VR

14 SYSTEM RESET

15 RS232 OUTPUT TERMINAL

16 DC 9V POWER AD APTOR SOCKET

17 PROBE PLUG

18 SENSOR HEAD

19 PROBE HANDLE

2. PANEL DESCRIPTION

1. DISPLAY

2. POWER button

3. HOLD / ESC button

4. REC / ENTER button

5. ▲(UP) button

6. RANGE / ▼(DOWN) button

7. CLOCK/ SEND button

8. LOGGER / SET button

9. TRIPOD SCREW

10. STAND

11. BATTERY COMPARTMENT/COVER

12. PROBE INPUT

13. LCD BRIGHTNESS ADJUSTMENT VR

14. SYSTEM RESET

15. DC 9V POWER ADAPTOR SOCKET

16. PROBE PLUG

17. SENSOR HEAD

18. PROBE HANDLE

10.

3. 4.

5. 6.

7. 8.

11.

12.

13.

14.

15.

16.

17.

18.

8. LOGGER / SET button

9. TRIPOD SCREW

10. STAND

11. BATTERY COMPARTMENT/COVER

12. PROBE INPUT

13. LCD BRIGHTNESS ADJUSTMENT VR

14. SYSTEM RESET

15. DC 9V POWER ADAPTOR SOCKET

16. PROBE PLUG

17. SENSOR HEAD

18. PROBE HANDLE

3. MEASUREMENT PROCEDURES: See page 4 for button locations.

Factory Preset Meter Defaults: Conductivity (uS, mS), °C, Temperature

Compensation (ATC) Factor of 2% per °C, Auto Range, Auto Power O󰀨,

and 2-Second Data Logger Sampling Time. To change default settings, see

“ADVANCED ADJUSTMENT PROCEDURES” on page 6.

3-A. General Measurement

• Insert the PROBE PLUG into the PROBE INPUT and turn the meter on

pressing the POWER button.

• Hold the PROBE HANDLE and immerse the SENSOR HEAD into the

solution sample to be measured. Gently shake the probe to release any

air bubbles.

• The sample’s conductivity mS (uS) and the temperature are displayed.

• See item 4-F, page 8 for instructions on changing between °C and °F.

• See item 4-G, page 8 for instructions on changing the Automatic

Temperature Compensation (ATC) Factor.

• The instructions for measuring TDS are the same as the instructions for

measuring Conductivity. See item 4-H, page 8 for instructions on changing

between Conductivity (uS, mS) and TDS (PPM) measurement.

• To display the time (h-m-s) or date (y-m-d) during use, press the

CLOCK button.

• Press the POWER button to turn the unit o󰀨.

3-B. Auto and Manual Range Modes

• “Auto Range” or “Manual Range” is displayed

under the measurement.

• To switch to Manual Range, press and hold the

RANGE button for at least 2 seconds. When

the meter beeps, release the RANGE button.

• Press the RANGE button again to switch

between the available ranges: 200uS, 2MS 20 mS and 200 mS.

• If the out-of-range indicator “- - - - -” appears at the bottom of the display,

select a lower range, and if it appears at the top of the display, select a

higher range.

• To switch to Auto Range, press and hold the RANGE button for at least 2

seconds. When the meter beeps, release the RANGE button.

3-C. Data Hold

• While measuring, press the HOLD button to freeze the displayed value.

• “HOLD” and the measurement are displayed.

• Press the HOLD button again to exit.

1.46

20.00 mS

Auto Range

66.5°

3-D. Maximum / Minimum

To record the maximum and minimum readings:

• Press the REC button once. “REC” appears on the LCD.

• Press the REC button again. “MAX”, “REC” and the maximum

measurement appear on the LCD.

• Press the REC button again. “REC Min” and the minimum measurement

appear on the LCD.

• To exit this function, press and hold the REC button for at least 2 seconds.

The display reverts to the current reading.

3-E. Data Logger

The data logger function can save up to 16,000 data points along with the

time (hour-min-sec) and date (year-month-day). When there are 16,000 data

points in memory, the display indicates “FULL.”

• To momentarily display the set sampling time, press the LOGGER

button once.

• To change the sampling time, see item 4-D on page 7.

• Press the REC button once, “REC” will be displayed.

• Depending on your set sampling time, continue to step “a” or “b” (below).

a. Auto Data Logger (sampling time can be set for 2 seconds to

8 hours, 59 minutes, 59 seconds):

• Press the LOGGER button once, “REC DATA” is displayed and

“Recording. . . .” ashes at each set interval.

• Press the LOGGER button again to exit. “REC” is still displayed, but

“DATA” is no longer shown.

• To resume data logging, simply press the LOGGER button again.

• To exit the “REC” function, press and hold the REC button for at least

2 seconds.

b. Manual Memory (sampling time MUST be set to “0” zero)

• Press the LOGGER button once to save each data point.

• Up to 250 data points can be saved and reviewed on the meter’s LCD by

pressing and holding the SEND button and then using ▲ and ▼ to scroll.

• To exit the this function, press and hold the ESC button for at

least 2 seconds.

4. ADVANCED ADJUSTMENT PROCEDURES

Press the SET button for at least two seconds to enter the advanced

adjustment procedures. Press the ESC button to exit.

Before executing the advanced adjustment procedures,

exit the HOLD and RECORD functions.

4-A. Check Remaining Number of Data Points

Press the SET button at least 2 seconds until

the lower display shows:

“XXXXX” is the number of free data points.

4-B. Clear Memory

• Press the SET button as needed to reach the

“clear memory” screen. The number of saved data points is displayed.

• To delete saved data from memory, press the ENTER button once, then

press the ENTER button again to conrm. The display shows:

“0 Ok ESC:Quit”.

• If you DO NOT want to clear the memory, press the ESC button to exit, OR

press the SET button to advance to the next option.

4-C. Date/Time Setting

• Press the SET button as needed to reach the

“date/time set” screen.

• Use the ▲, ▼, and ENTER buttons to select the year, month, date, hours,

minutes and seconds.

• Press the ENTER button to save the settings.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

4-D. Sample Time Setting

• Press the SET button as needed to reach the

“sample time” screen.

• Use the ▲, ▼, and ENTER buttons to select the sample time (hour-min-

sec).

• Press the ENTER button to save the settings.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

4-E. Auto Power O󰀨 Default Setting

The meter will automatically shut o󰀨 after

about 10 minutes without activity.

• Press the SET button as needed to reach the “auto power o󰀨” screen.

• Use the ▲ or ▼ buttons to enable / disable this feature.

• Press the ENTER button to save the settings.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

Clear Memory

Esc:N Enter:Y

107

06:01:03 Date/Time Set

y-m-d ^, v ENTER(→)

00:00:02 Sample Time

h-m-s ^, v ENTER(→)

1=Auto Power O󰀨 - Enabled

0=Auto Power O󰀨 - Disabled

XXXXX Memory Space

4-F. Temperature Unit Default Setting

• Press the SET button as needed to reach the “temp. unit” screen.

• Use the ▲ and ▼ buttons to switch between °F and °C. Press

the ENTER button.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

4-G. Temperature Compensation Factor (ATC) Default Setting

The ATC Factor is adjustable between 0 to 5.0% per °C.

• Press the SET button as needed to reach the “Temp.

Comp.” screen.

• Use the ▲, ▼, and SEND buttons to set the ATC Factor.

• Press the ENTER button to save the settings.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

4-H. Conductivity (uS, mS), TDS (PPM) Default Setting

• Press the SET button as needed to reach the “CD/TDS” screen.

• Use the ▲ and ▼ buttons to switch between uS, mS and PPM.

• Press the ENTER button.

• Press the SET button to advance to the next option, or press the ESC

button to exit.

4-I. Escape from Advanced Adjustments

For the above procedures, press the ESC button before pressing the

ENTER button to exit advanced adjustments without saving the changes.

1=°F

0=°C

Temp. Comp.

^, v SEND(→)

1=PPM

0=uS, mS

5. BATTERY REPLACEMENT

When the left corner of the LCD displays the low battery icon install 4 new

AA 1.5V batteries. Slide the BATTERY COVER away from the instrument

to remove the old batteries. When the clock is not accurate, replace the 3V

button cell battery located in the compartment behind the AA’s. Re-attach the

battery cover when you have nished. In-spec measurements may be made

for several hours after the low battery indicator appears.

6. TROUBLESHOOTING

Gently insert a pin or small object into the SYSTEM RESET while turning on

the meter.

7. OPTIONAL ACCESSORIES

850040 Replacement Conductivity/TDS Probe

840058 USB Power Cable

840097 AC to DC 9V Adapter

840090 Water Resistant Instrument Pouch

840093 Field Tripod

8. OFFSET (ZERO) PROCEDURE

With the SENSOR HEAD completely dry, press the ▲ button for at least two

seconds until the meter beeps and the display changes to zeros.

9. CONDUCTIVITY CALIBRATION

Although calibration is not generally needed, the following procedures

should be performed the rst time a new probe is used, when the electrode

is changed, or after the meter has been in use for a long period of time.

• Prepare a 1.413 µS calibration solution, or

any standard conductivity solution.

• Press the POWER button to turn the meter on.

• Select the auto range mode, see item 3-B, page 5.

• Immerse the SENSOR HEAD into the solution.

• Press both the REC and HOLD buttons at the same time. Release the

buttons when “0:Temp.,1:CD” is displayed.

• Use the ▲ and ▼ buttons to select “1” for Conductivity Calibration or “0” for

Temperature Calibration.

• Press the ENTER button.

• Use the ▲ and ▼ buttons to select the desired calibration value, for

example 1.413.

• Press the ENTER button twice to save the setting and exit the function.

The same steps are used to calibrate 200uS, 2mS, 20mS, and 200mS.

Each range can be independently calibrated.

1.408

2.000 µS

°C

1.413

2.000 µS

°C

1=Conductivity Calibration

0=Temp. Calibration

Table of contents

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