Large Display Salinity & Conductivity Pens 850036 & 850037
Large Display Salinity & Conductivity Pens 850036 & 850037 Copyright ©2013 by Sper Scientific 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 Scientific. Sper Scientific 8281 E. Evans Rd.
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 . .
INTRODUCTION The Sper Scientific 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 float if accidentally dropped into the water.
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 5
POWER SUPPLY The pen is powered by 4 LR44 batteries.
Large Display Salinity Pen 850036 7
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.
5. When in P1.0, press ▲ to advance to the next setup function or press SET for more than 2 seconds to return to Measurement Mode.MODE SETUP Press and hold Resetting the Pen (rSt) Press When the pen is reset, all parameters for less will be reset to factory default values.than 1 Press second and for 2 seconds to enter setup. 1. Press SET 2. Press ▲hold 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.
5. Press SET for less than one second to confirm 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 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 confirm 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.
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.
the pen will retain the calibration data for other ranges that have not yet been recalibrated. 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.
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.
9. When “CAL” stops flashing on the LCD, press SET for less than 1 second to confirm 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” flashes on the LCD continually, check that the calibration solution is stable and that the input value (Step 8) is correct. 10.
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...
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.
2. Press HLD again to release the hold function. Turning the Pen Off 1. Press SET to turn the pen off from Measurement Mode. 2. To turn the pen off from Setup Mode, press SET for more than 2 seconds to return to Measurement Mode, then press SET again. Auto Power Off 1. To save battery life, the pen will automatically turn off after 20 minutes of inactivity. To disable this function: 2. Press SET to turn the pen off. 3. Press SET and ▼ simultaneously until “n” appears on the LCD.
SPECIFICATIONS Accuracy ±1% Full Scale ± 1 digit (0.0~10.0 ppt) or ±2% Full Scale ±1 digit (10.1~70.0 ppt) Range 0.00~10.00 ppt (NaCl) or 10.1~70.0 ppt (NaCl) Resolution 0.01 ppt or 0.1 ppt Calibration One point per range TDS Factor Built-in NaCl conductivity to TDS factor Temperature Coefficient Built-in NaCl temperature coefficient Reference Temperature Fixed at 25°C Operating Temperature 0~50°C (32~122°F) Battery Life >80 hours continuous use Weight 2.
ERROR CODES Salinity - - - The pen is in manual ranging 1 but the salinity measurement is higher than 10.0 ppt; Press ▲ for more than 2 seconds to change to manual ranging 2 or auto-ranging mode. E03 The salt value is over the range limit (70.0 ppt) or the pen is damaged; Put the pen in standard buffer solution (the buffer concentration must be lower than the range limit). If E03 still appears, send the pen to Sper Scientific for repair.
Temperature E01 The temperature circuit is damaged; Send the pen to Sper Scientific for repair. E02 The temperature value is below the range limit (0°C) or the temperature circuit is damaged; Place the pen in room temperature for 5 minutes, if E02 still appears, send the pen to Sper Scientific for repair.
Large Display Conductivity Pen 850037 23
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 confirm the unit selection. Press SET for more than 2 seconds to return to P1.0 without saving. 5.
momentarily again to enter unit setting. Reference (Normalization) Press " " or " " to select C /F. Temperature (tnr) Press " " momentarily to confirm the unit or press " " more than 2 sec to After saving thewithout temperature unit setting, return to P1.0 saving. the pen will automatically enter the reference temperature setup. After confirming the unit, you can continuously set another temp. related parameters 8371) press 1. Press ▲ to(except select 20°C oror 25°C.
next step or press " " more than 2 sec to return to P1.0 without saving. Temperature Coefficient (tCo) 1.P1.3: PressTemp. ▲ or ▼ to change the Coefficient (tCo) coefficient from 0.0 ,topress 4.0. Intemperature temp. coefficient adjustment " orSET " for" or " than " to change 2." Press less one secondthe temperature coefficient fromSET 0.0 to to confirm the value or press for 4.0. Press " " momentarily to more than 2 seconds to return to P1.
more than 2 seconds to return to P2. 0 without confirming the value. Resetting the Pen (rSt) NOTE: Pay attention the diffeWhen the pen is reset, allto parameters rence (including calibration information)between will be short or long reset to factory default values. press " " after setting 1. Press SET for 2 seconds enter setup. thetotds value. 2. Press ▲ to select the reset pen setting. P3.
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. Range 2 Calibration Information: 4. When in P4.1, press ▲ to enter P4.
P4.1 and P4.2 Modes allow review of the calibration information but are not used during the calibration procedure. When in Temperature Parameter (P1.0), Resetting the Pen (P3.0) or Calibration Review (P4.0) Setup Modes, press SET for more than 2 seconds to return to Measurement Mode.
Selecting the Measurement Range (rAn) There are two measurement ranges. The pen defaults to auto-ranging Conductivity Range 1 Range 2 0 ~ 1999 uS 0 ~ 19.99 mS To manually select the measurement range: To manual select measurement 1. Press SET to turnthethe pen on. range: 2. Press ▲ for more than 2 seconds to 1. Turn on the meter and stay at normal selectmeasurement range 1. Press mode. ▲for more than 2 seconds range 2. 2 2.Press " to select " or " " more than seconds to select the range.
CALIBRATION Selecting the Calibration Standard Solution For best results, select a conductivity standard near the sample value that you are measuring. Alternatively, use a calibration solution value that is approximately 2/3 of the full scale of the measurement range that you plan to utilize. For example, in the 0 to 1999 uS range, use 1413 uS solution for calibration. Do NOT reuse the calibration solution. Contaminants in the solution will affect the calibration and the accuracy.
Conductivity Measuring Range Recommended Cal. Solution Range 1 0 ~ 1999 uS 600 ~ 1700 uS 2 0 ~ 19.99 mS 6.0 ~ 17.00 ms The previous calibration data will be replaced after re-calibrating. For example, if you previously calibrated the conductivity pen at 1413 uS in the 0 ~ 1999 uS range, when you re-calibrate at 1500 uS again (also in the 0 ~ 1999 range), the previous 1413 uS calibration point will be replaced in this range (0 ~ 1999 uS).
The default value of the reference temperature is set at 25°C. To normalize to a different value, see page 33. Determine the calibration standard value for your reference temperature before resetting the reference temperature. Contact the solution distributor for the calibration standard value of the solution. 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.
Conductivity Calibration CALIBRATION 1. lace the probe into deionized or 3. PPour 3 cm (deep) of buffer solution distilled water for about 30 minutes into two separate containers (A to & B). rinse the probe. 2. elect the conductivity standard 4. SPress SET to turn the meter for on. calibration. (Refer to page 26)2 seconds Press CAL for more than 3. Pto ourenter 3 cm Calibration (deep) of calibration Mode. solution into two separate containers (A & B). 4. ress SET turn the pen on. Press 5.
7. Press CAL for more than 2 seconds to begin calibration. The conductivity value of the solution will flash 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 conductivity reading ± 30% from the detected value. If the detected value and the standard value differ by more than ± 30%, clean or replace the pen. Example: Standard: 10 uS; Detected value: 19 uS Adjustable range: ± 5.
Although the values differ less than 30%, the 22 uS is still over the range limit. The maximum input value is 19.99 uS. Example 2: Standard: 1.6 mS; Detected value: 2.1 mS Adjustable range: ± 0.63 mS (2.1*30%) Although the measured value differs less than 30%, the 1.6 mS is still less than the 10% range limit (1.99). The maximum input value is 1.99 mS. 9. When “CAL” stops flashing on the LCD, press SET for less than 1 second to confirm the value. The pen will return to Measurement Mode.
Note… When the pen is switched from Measurement Mode to Calibration Mode, it will display the factory default value. Therefore, if the pen was previously calibrated, the display may appear to jump to the factory default value when entering Calibration Mode MEASUREMENT PROCEDURES 1. Remove the probe cover from the pen. Electrode Remove the cover Remove the cover from from the bottom the bottom of pen to of meter to expose expose the electrode. the electrode. 3.
of meter to expose the electrode. 2. Press SET to turn the pen on. meter is default in auto-ranging 3. The pen defaults to auto-ranging mode. 3. The status once powered on. The auto-ranging function determines and selects a range that Auto-ranging determines and selects will provide thegives greatest resolution a range which you the greatest and accuracy. resolution and accuracy. Alternatively, 4. The penmanually also provides a manual range you can select the ranges. option.
5. Set the temperature coefficient to the correct value. The pen defaults to 2.1% per °C, which will typically provide good results. See page 27 to reset the temperature coefficient. 6. Select the reference temperature. The pen defaults to 25°C. To more than 2 seconds to select the 19.99 mS range. See page 26 for instructions on manually selecting the range. normalize to 20°C instead, see page 26. 7.
Allow a few seconds to reach temp. equilibrium. (Wait about 15 minutes 9. can Stir the gently to create a uniform getprobe a stable reading) sample. Wait about 15 minutes for the reading 9. The 8351 unittoofstabilize. measurement 10.will Theflash unit of onmeasure the LCD to will flashthe on meter the LCD indicate is to in indicate that the pen is in measurement mode. When Measurement Mode. When the reading is stable, the unit the reading is stable, the will stop flashing.
SPECIFICATIONS Accuracy ± 1% Full Scale ± 1 digit Range 0 ~ 1999 uS or 0 ~ 19.99 mS Resolution 1 uS or 0.01 mS Temperature Accuracy ± 2°F ± 1°C Temperature Resolution 0.1°C/°F Calibration One point per range Temperature Coefficient 0 ~ 4.0%/°C Reference Temperature 20°C or 25°C Operating Temperature 0~50°C (32~122°F) Battery Life >80 hours continuous use Weight 2.
ERROR CODES Conductivity - - - The pen is in manual ranging 1 but the conductivity measurement is higher than 1999 uS; Press ▲ for more than 2 seconds to change to manual ranging 2 or auto-ranging mode. E03 The conductivity value is over the range limit (19.99 mS) or the pen is damaged; Put the pen in standard buffer solution (the buffer concentration must be lower than the range limit). If E03 still appears, send the pen to Sper Scientific for repair.
Temperature E01 The temperature circuit is damaged; Send the pen to Sper Scientific for repair. E02 The temperature value is below the range limit (0°C) or the temperature circuit is damaged; Place the pen in room temperature for 5 minutes, if E02 still appears, send the pen to Sper Scientific for repair.
Appendices 45
APPENDIX A: Program Function Default Note P1.1 Select °C/°F °C Temp unit P1.2 Reference Temperature 25°C Selectable 25°C or 20°C P1.3 Temperature Coefficient 2.1% /°C Adjustable 0.4 ~ 10% P3.1 Factory Default NO Retain your current settings P4.1 Viewing previous calibration data ---- No cal data for 1st range P4.
APPENDIX B: Temperature Effect Conductivity measurements are temperature dependent; if the temperature increases, conductivity increases. For example, the conductivity measured in a 0.01 M KCl solution at 20°C is 1.273 mS/ cm, whereas at 25°C, it is 1.409 mS/cm. The concept of reference temperature (normalization temperature) was introduced to allow the comparison of conductivity results obtained at different temperatures. The reference temperature is usually 20°C or 25°C.
increases. eg: the conductivity measured in a 0.01 M KCl solution at 20 0 C is 1.273 mS/cm, whereas, at 0 25 C, it is 1.409 mS/cm. is the value taken at the measurement The concept of reference temperature temperature. The Large Display(Normalization Salinity temperature) was introduced to allow the comparison (Model 850036) and Conductivity of conductivity results obtained at different(Model temperature. The reference temperature is usually 20 linear C or 25 C.
Note… The correction is accurate only within a limited temperature range around T1 and T2. The greater the difference between T and Tref, the higher the risk of error.
Acids: 1.0 - 1.6%/°C Bases: 1.8 - 2.2%/°C Salts: 2.2 - 3.0%/°C Drinking water: 2.0%/°C Ultra-pure water: 5.2%/°C Average temperature coefficients of standard electrolyte solutions are expressed as %/°C of the conductivity value at 25°C. Temp Range °C KCl 1M KCl 0.1 M KCl 0.01 M Saturated NaCl 15 ~25 1.725 1.863 1.882 1.981 15 ~ 25 1.730 1.906 ~35 (15 ~ 27°C) 1.937 2.041 (15 ~ 34°C) 1.762 1.978 (25 ~ 27°C) 1.997 2.
Battery Replacement, Maintenance, & Troubleshooting 51
BATTERY REPLACEMENT B 1. Press SET to turn the pen off. 2. Remove the battery cover located on the top of the unit by rotating counterclockwise. Do NOT discard the black washer. 3. Remove the old batteries and replace with 4 new LR44 batteries, ENT ensuring M E correct polarity. LAC P E 4. Replace Y Rthe battery cover by rotating in Rclockwise E T the direction. AT Note… If the pen will not be in use for a month or longer, remove the batteries and replace when ready to use the pen.
MAINTENANCE Ensure that the probe is clean before use and storage. To clean: 1. Remove the probe cap. 2. Rinse the probe carefully in deionized water, replace the cap, and store dry in an environment of 0 ~ 50°C. Note… If the probe has been exposed to a solvent that is immiscible with water, clean the probe with a solvent that is miscible with water (i.e., ethanol or acetone), then carefully rinse with water.
TROUBLESHOOTING Pen does not turn on: 1. Press SET for more than 1 second. 2. Check that the batteries are in place, making good contact, and placed with correct polarity. 3. Replace with new batteries and try again. 4. Remove the batteries for one minute and then replace the batteries. Display disappears: If the low battery icon appears on the LCD before the display disappears, replace with new batteries.
Many air bubbles adhered! To reduce air bubbles, stir the To remove the airthe bubbles: electrode completely and better to the electrode into solution at 1. Stir thedipprobe. angle. dipsolution the electrode 2. Dip theoblique probe into To the at at vertical angle is easy to create an oblique angle (at a slant, not many air bubbles. perpendicular to solution).
WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of one (1) year from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, battery leakage, or damage resulting from accident, tampering, misuse, or abuse of the product.
