Sper Scientific 850037 User Manual

Large Display

Salinity &

Conductivity Pens

850036 & 850037

Large Display
Salinity & Conductivity Pens

850036 & 850037

Copyright ©2013 by

Sper Scientic

ALL RIGHTS RESERVED
Printed in the USA

The contents of this manual may not be
reproduced or transmitted in any form or
by any means electronic, mechanical, or
other means that do not yet exist or may
be developed, including photocopying,
recording, or any information storage
and retrieval system without the express

permission from Sper Scientic.

Sper Scientic
8281 E. Evans Rd., Suite #103

Scottsdale, AZ 85260
[phone]

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TABLE OF CONTENTS

INTRODUCTION. . . . . . . . . . . . . . 4

FEATURES. . . . . . . . . . . . . . . . . 5

MATERIALS SUPPLIED . . . . . . . . . . 5

POWER SUPPLY . . . . . . . . . . . . .6

LCD DISPLAY . . . . . . . . . . . . . . . 6

APPENDICES . . . . . . . . . . . . . . 45

BATTERY REPLACEMENT . . . . . . . 52

MAINTENANCE . . . . . . . . . . . . . 53

TROUBLESHOOTING . . . . . . . . . . 54

WARRANTY . . . . . . . . . . . . . . . 56

850036 SALINITY PEN . . . . . . . . . .7

SET UP . . . . . . . . . . . . . . . . . . 8

CALIBRATION . . . . . . . . . . . . . 12

MEASUREMENT PROCEDURES . . . 16

SPECIFICATIONS . . . . . . . . . . . 19

ERROR CODES . . . . . . . . . . . . 20

850037 CONDUCTIVITY PEN . . . . . . 23

SET UP . . . . . . . . . . . . . . . . . 24

CALIBRATION . . . . . . . . . . . . . 32

MEASUREMENT PROCEDURES . . . 38

SPECIFICATIONS . . . . . . . . . . . 42

ERROR CODES . . . . . . . . . . . . 43

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INTRODUCTION

The Sper Scientic Large Display Salinity

(Model 850036) and Conductivity (Model

850037) Pens provide highly stable and
accurate readings with a large LCD that
simultaneously displays the parameter
being measured and temperature in

°C or °F. The pens are designed for simple
one-hand operation. The case is IP65
waterproof, and will oat if accidentally
dropped into the water.

Salinity is displayed not as a percentage
but as parts per thousand (ppt), which
is approximately grams of salt per liter

of solution.

Conductivity is displayed as mhos
per centimeter (M/cm) or siemens
per centimeter (S/cm). Because a mho
(or siemen) is a large unit, microsiemen
or millisiemen typically is used (µS/cm,

mS/cm).

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FEATURES

• IP65 waterproof housing

• Dual display with ATC

• Data hold

• Pen size for portability

• Built-in probe with protective cap

• One touch, multi-point calibration

• Auto-power-off

• Low battery indicator

MATERIALS SUPPLIED

• 4 LR44 button cell batteries

• Instruction Manual

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POWER SUPPLY

LCD DISPLAY

The pen is powered by 4 LR44 batteries.

Check the batteries when:

• Using the unit for the rst time

• The low battery indicator appears

on the LCD

• The pen will not turn on

LCD DISPLAY

Hold data on the LCD
Calibration Mode

Low battery indicator

Unit of conductivity

Measured value

Unit of TDS and
Salinity

Unit of liquid
temperature °C or °F

Temperature reading

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Large Display

Salinity Pen

850036

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SETUP MODE

The advanced Setup Mode allows you

to customize the pen’s preferences and

defaults:

1. Press SET to turn the pen on.

2. From Measurement Mode, press SET

for more than 2 seconds to enter Setup

Mode and change parameters.

Temperature Units (tUt)

To select the Celsius or Fahrenheit
temperature scale:

1. Press SET for 2 seconds to enter setup.

2. “t” will appear on the primary display of
the LCD and “P1.0” will appear on the
secondary display.

3. Press SET again for less than one
second to enter the unit setting.

4. Press ▲ or ▼ to select C (Celsius) or
F (Fahrenheit). Press SET for less than
one second to conrm the unit selection.

Press SET for more than 2 seconds to

return to P1.0 without saving.

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5. When in P1.0, press ▲ to advance to

SETUP MODE

the next setup function or press SET
for more than 2 seconds to return to

Measurement Mode.

Resetting the Pen (rSt)

When the pen is reset, all parameters

will be reset to factory default values.

1. Press SET for 2 seconds to enter setup.

2. Press ▲ to select the reset pen setting.
“rst” will appear on the main display of
the LCD and “P3.0” will appear on the
secondary display.

3. Press SET again for less than one
second to enter the reset setting.

4. Press ▲ to select Y (yes) or N (no).

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5. Press SET for less than one second to
conrm the selection or press SET for
more than 2 seconds to return to P3.0
without saving.

6. When in P3.0, press ▲ to advance to

the next setup function or press SET
for more than 2 seconds to return to

Measurement Mode.

Calibration Review (CAL)

1. Press SET for 2 seconds to enter setup.

2. Press ▲ to select the calibration review
setting. “CAL” will appear on the primary
display of the LCD and “P4.0” will
appear on the secondary display.

Range 1 Calibration Information:

3. When in P4.0, press SET for less than
one second to enter P4.1 to review the
last calibration concentration. If the pen
is not yet calibrated, “---” will appear on
the LCD.

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Range 2 Calibration Information:

4. When in P4.1, press ▲ to enter P4.2 to
review the last calibration concentration.
If range 2 is not yet calibrated, “---” will
appear on the LCD.

5. When in P4.1 or P4.2, press SET for
less than one second to conrm and
return to P4.0.

6. When in P4.0, press ▲ to advance to

the next setup function or press SET
for more than 2 seconds to return to

Measurement Mode.

Note…

P4.1 and P4.2 Modes allow review of the

calibration information but are not used

during the calibration procedure.

Selecting the Measurement Range (rAn)

There are two measurement ranges.
The pen defaults to auto-ranging:

Salinity

Range 1 0 ~ 10.00 ppt

Range 2 10.1 ~ 70.0 ppt

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To manually select the measurement range:

1. Press SET to turn the pen on.

2. Press ▲ for more than 2 seconds to
select range 1. Press ▲ for more than
2 seconds to select range 2.

CALIBRATION

Selecting the Calibration
Standard Solution

For best results, select a NaCl standard
near the sample value that you are

measuring. Alternatively, use a calibration
solution value that is approximately ⅔ of

the full scale of the measurement range

that you plan to utilize.

Do NOT reuse the calibration solution.

Contaminants in the solution will affect the

calibration and the accuracy. Use fresh
solution each time.

The previous calibration data will be
replaced after re-calibrating. However,

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the pen will retain the calibration data for
other ranges that have not yet been re-

calibrated.

Selecting the Calibration Schedule

Calibration is necessary and should be

performed regularly. Soak the probe for 15

minutes before calibration or measurement

to minimize drift. If the pen is used in the
mid ranges, calibrate the unit monthly.

If the measurement is performed at
extreme temperatures or within the
concentration listed below, calibrate

the unit weekly.

Model Concentration

Salinity Pen < 0.10 ppt > 5.0 ppt

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Salinity Calibration

1. Place the probe into deionized or

distilled water for about 30 minutes to

rinse the probe.

2. Select the NaCl standard for calibration.

3. Pour 3 cm (deep) of solution into two
separate containers (A & B).

4. Press SET to turn the pen on.

5. Rinse the probe in one of the
containers. Gently stir the probe.

6. Dip the rinsed probe into the other
container. Tap the probe on the bottom
of the container to remove air bubbles.
Let the probe stabilize to the solution
temperature (allow 15 minutes).

7. Press CAL for more than 2 seconds to
begin calibration. “CAL” and the salinity
value of the solution will ash on the LCD.

8. Press ▲ or ▼ to adjust the value on the

primary display to match the value of

the standard buffer. You can adjust the

salinity reading ± 30% from the detected

value. If the detected value and the

standard value differ by more than ±

30%, clean or replace the pen.

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9. When “CAL” stops ashing on the

LCD, press SET for less than 1 second

to conrm the value. The pen will

return to Measurement Mode for salt

measurement. To exit Calibration Mode

without saving, press SET for more than

2 seconds. This allows you to retain the
pen’s previous calibration data for the
current range as you proceed. If “CAL”
ashes on the LCD continually, check

that the calibration solution is stable and

that the input value (Step 8) is correct.

10. Repeat Steps 1-9 for other ranges as

needed.

Note…

If the standard value is over the measuring
range or 10% less, the displayed value will
be equal to the range limit or 10% of the

range limit.

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MEASUREMENT PROCEDURES

1. Remove the probe cover from the pen.

2.

Press SET to turn the pen on.

3. The pen defaults to auto-ranging mode.

The auto-ranging function determines
and selects a range that will provide the

greatest resolution and accuracy.

4. To manually select the measurement
range: Press SET to turn the pen on.
Press ▲ for more than 2 seconds to
select range 1. Press ▲ for more than
2 seconds to select range 2.

Note...

Accuracy is a percent of full-scale; use
your pen in the lowest range to achieve

the greatest accuracy. Error codes

E02/E03 will appear on the LCD if the
measured value is below or above the

limit value. Please re-select the range.

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5. Rinse the probe tip with de-ionized or

distilled water before use to remove

any impurities adhering to the probe. If

the probe tip is dehydrated, soak it for
30 minutes to prevent contaminants
from slowing down the measurement

and accuracy.

6. Immerse the probe tip completely into
the sample. Ensure that there are no
air bubbles trapped in the probe slot.

Gently stir the probe to remove air
bubbles, ensuring that the probe tip

is submerged while stirring.

7. Stir the probe gently to create a uniform
sample. Wait about 15 minutes for the
reading to stabilize.

8. The unit of measure will ash on the

LCD to indicate that the pen is in
Measurement Mode. When the
reading is stable, the unit of measure

will stop ashing.

Hold Function

1. Press HLD to freeze the current
readings on the display. “Hold” will
appear on the LCD.

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