HACH LANGE 2100N Скачать руководство пользователя страница 28 | Manualshive

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7.

Read and record the

value when stable.

Note: To send (via
RS232) a measurement
record, push PRINT.

Measurement techniques

Measurements may be made with different operation mode settings and
optional accessories.
Calibrate the instrument whenever the sample cell pathlength is
changed.

Manual or automatic ranging

The manufacturer recommends that ranging be set to automatic for most
measurements.
The setting can be changed at any time during sample measurement.
Push

RANGE

repeatedly to step the instrument from automatic ranging

to manual ranging and then scroll through the manual range settings.
The Manual Range light turns on when manual ranging is selected. The
Auto Range light turns on when automatic ranging is selected.
Notes:

• When manual ranging is selected, the display flashes all 9s when the

sample being measured is greater than the selected range. The
display flashes all 0s when the sample measured is less than the
selected range.

• When automatic ranging is selected, the display flashes 9s when the

sample is greater than the maximum range of the instrument. The

display flashes 9s when Ratio is off and the measurement is greater
than 40 NTUs (268 nephelos or 9.8 EBCs). Turn Ratio on to increase
the range. Refer to

Measure over-range samples

• When automatic ranging is selected, the display flashes all 0s when

the measurement is less than the range of the instrument or a
negative value. Calibrate the instrument.

Signal averaging on or off

Signal averaging corrects for reading fluctuations that are caused by
random drifting particles in the sample. When signal averaging is on, an
average reading is calculated every 3 seconds and shown on the
display.The last ten measurements are used to calculate the average
reading.
The manufacturer recommends that signal averaging be on for most
measurements.
Push

SIGNAL AVG

to turn signal averaging on or off. The SIGNAL AVG

light turns on when signal averaging is on.
Push

ENTER

when signal averaging is on to erase data in the signal

averaging buffer and provide an immediate update on the display as
necessary. This is especially useful when measuring samples with large
differences in turbidity.

26

English

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Содержание 2100N

Страница 1: ...DOC022 52 80203 2100N 08 2014 Edition 5 User Manual ...

Страница 2: ......

Страница 3: ...alibrate the turbidimeter with StablCal Standards 11 Prepare the StablCal standards 11 Calibration notes 11 StablCal calibration procedure 12 StablCal standards storage 13 Using Gelex secondary standards 13 Gelex notes 13 Measure the Gelex stray light standard 14 Measure the Gelex secondary turbidity standards 15 Calibration verification 16 Optical system check 16 Prepare a sample cell 16 Clean th...

Страница 4: ...anual or automatic ranging 26 Signal averaging on or off 26 Ratio on or off 27 Using the air purge system 27 Using a flow cell 28 Install a flow cell 28 Clean a flow cell assembly 28 Flow cell maintenance 28 Flow cell operation 28 Flow cell storage 29 Using a manual flow cell 29 Use a cell adapter 29 Install a cell adapter 29 Remove a cell adapter 30 Connect to a printer or computer 30 Configure t...

Страница 5: ...meter with user selected formazin standards 35 Prepare formazin standards user selected 35 Change the calibration points 35 Maintenance 36 Clean the instrument 36 Change the filter assembly 36 Clean the filter assembly 36 Replace the lamp 36 Replace a fuse 38 Troubleshooting 38 Error codes 38 Diagnostic codes 39 Delete calibration data 39 Flashing 9s 40 Flashing 0s 40 Replacement parts and accesso...

Страница 6: ...Table of Contents 4 ...

Страница 7: ...U under reference conditions3 Resolution Turbidity 0 001 NTU EBC Nephelo on lowest range Specification Details Repeatability 1 of reading or 0 01 NTU whichever is greater under reference conditions Response time Signal averaging off 6 8 seconds Signal averaging on 14 seconds when 10 measurements are used to calculate the average Stabilization time Ratio on 30 minutes after start up Ratio off 60 mi...

Страница 8: ...nsible for any damages due to misapplication or misuse of this product including without limitation direct incidental and consequential damages and disclaims such damages to the full extent permitted under applicable law The user is solely responsible to identify critical application risks and install appropriate mechanisms to protect processes during a possible equipment malfunction Please read t...

Страница 9: ...anges or modifications to this equipment not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment...

Страница 10: ... Product components Refer to Figure 3 to make sure that all components have been received If any of these items are missing or damaged contact the manufacturer or a sales representative immediately Figure 3 Instrument components 1 2100N turbidimeter 6 StablCal Calibration kit 2 USEPA filter assembly 7 Gelex secondary turbidity standardization kit1 3 Oiling cloth 8 Dust cover 4 Six 1 sample cells 3...

Страница 11: ... moves the cursor to the previous or next digit Selects automatic or manual ranging Selects the unit of measure Exits Calibration without saving changes Table 1 Key descriptions continued Key Description Turns Ratio on or off Turns signal averaging on or off Sends the data that is on the display to a printer or computer Sends a calibration data report to a printer or computer when in Calibration m...

Страница 12: ...e CAL Turns on during a calibration if the calibration data is not within the acceptable range Flashes when the instrument should be calibrated Note The CAL light applies when the USEPA filter and a 25 mm sample cell are used Ignore the CAL light if illuminated during calibration when a different filter or a smaller sample cell is used Push UNITS Exit to start measurements RATIO Illuminated when R...

Страница 13: ... the performance of the instrument if calibrated with co polymer styrenedivinylbenzene beads or other suspensions Prepare the StablCal standards When received and at intervals 1 Clean the exterior surface of the StablCal vials with laboratory glass cleaning detergent 2 Rinse the vials with distilled or deionized water 3 Dry the vials with a lint free cloth Note Never shake or invert the 0 1 NTU st...

Страница 14: ...ilter assembly on page 36 2 Clean the lens of the USEPA filter assembly Refer to Clean the filter assembly on page 36 3 Hold the tab of the USEPA filter assembly so that the arrows point toward the front of the instrument Push the filter assembly fully in the housing 4 Push CAL The S0 light turns on The NTU value of the dilution water used in the last calibration is shown on the display 5 Get the ...

Страница 15: ...in the plastic case provided with the cover closed Store at 5 to 25 C 41 to 77 F For long term storage more than one month between use keep at 5 C 41 F Using Gelex secondary standards The Gelex secondary standards are used when a calibration check or an optical system check is done Refer to Calibration verification on page 16 and Optical system check on page 16 Gelex notes Measure the Gelex second...

Страница 16: ...move the excess oil Make sure that the vial is almost dry 4 Push RANGE to select automatic ranging The Auto Range light turns on 5 Push SIGNAL AVG to turn signal averaging off The SIGNAL AVG light turns off 6 Push UNITS Exit to select the NTU measurement mode The NTU light turns on 7 Push RATIO to turn Ratio mode on 8 Put the stray light standard in the sample cell holder with the triangle on the ...

Страница 17: ...ter spots and fingerprints 2 Apply a small bead of silicone oil from the top to the bottom of the vial 3 Use the oiling cloth to apply the oil equally to the surface of the vial Remove the excess oil Make sure that the vial is almost dry 4 Push RANGE to select automatic ranging The Auto Range light turns on 5 Push SIGNAL AVG to turn signal averaging off The SIGNAL AVG light turns off 6 Push UNITS ...

Страница 18: ...lex vial is greater than 40 NTU Select the Ratio setting recorded on the Gelex vial for vials less than 40 NTU If the measured value is within 5 of the value recorded on the Gelex vial calibration is verified If not calibrate the instrument Note The StablCal primary turbidity standards can also be used to do a calibration check Prepare the StablCal vials before use Refer to Prepare the StablCal st...

Страница 19: ...lled or deionized water 3 Clean the internal and external surfaces of the sample cell and cap with 1 1 hydrochloric acid 4 Fully rinse the sample cell many times with distilled or deionized water Note If the sample cell will be used to measure low range turbidity samples or dilution water rinse with dilution water not distilled or deionized water Refer to Prepare dilution water on page 21 5 Dry th...

Страница 20: ...about 30 mL with dilution water and immediately put the cap on the sample cell Refer to Prepare dilution water on page 21 Let the sample cell sit for at least five minutes to degas 2 Clean the sample cell with a soft lint free cloth to remove water spots and fingerprints 3 Apply a small bead of silicone oil from the top to the bottom of the sample cell 4 Use the oiling cloth provided to apply the ...

Страница 21: ...7 Repeat step 6 until the lowest value is shown on the display 8 Put an orientation mark on the marking band near the top of the sample cell where the lowest value is shown English 19 ...

Страница 22: ...ter on page 21 Let the sample cell sit for at least five minutes to degas 2 Clean the sample cells with a soft lint free cloth to remove water spots and fingerprints Do not invert the sample cell 3 Apply a small bead of silicone oil from the top to the bottom of the sample cells 4 Use the oiling cloth provided to apply the oil equally to the surface of the sample cells Remove the excess oil Make s...

Страница 23: ...near the top of the sample cell where the lowest value is shown 13 Do steps 9 12 again as necessary to match the other sample cells prepared in steps 1 4 Prepare dilution water Dilution water is used when indexing a sample cell or matching sample cells and to prepare formazin standards 1 Collect at least 1000 mL of high quality low turbidity water i e distilled demineralized or deionized water or ...

Страница 24: ...urbidity can be changed if these methods are not used correctly Apply a vacuum Apply a vacuum with any available clean oil free vacuum source such as the sample degassing kit or an electric or hand operated pump equivalent to those in Accessories on page 40 The vacuum lowers the atmospheric pressure above the sample letting trapped gas bubbles exit Vacuum works well with samples that are not visco...

Страница 25: ... significant amounts of light may be absorbed by the particles and little light is available for scattering This results in a negative interference causing the measured turbidity to be lower than the actual turbidity This condition is called going blind Methods used to prevent the instrument from going blind include Turn Ratio on Ratio on mode decreases the effects of light absorbing particles col...

Страница 26: ...rn the instrument on 30 minutes Ratio on or 60 minutes Ratio off before measurement Keep the instrument on 24 hours a day if the instrument is used regularly Always close the sample compartment lid during measurement calibration and storage Remove the sample cell from the instrument and turn off the instrument if the instrument is stored for an extended time period more than a month Keep the sampl...

Страница 27: ...y put the cap on the sample cell 2 Clean the sample cells with a soft lint free cloth to remove water spots and fingerprints 3 Apply a small bead of silicone oil from the top to the bottom of the sample cells 4 Use the oiling cloth provided to apply the oil equally to the surface of the sample cells Remove the excess oil Make sure that the sample cells are almost dry 5 Gently and slowly invert the...

Страница 28: ...play flashes 9s when the sample is greater than the maximum range of the instrument The display flashes 9s when Ratio is off and the measurement is greater than 40 NTUs 268 nephelos or 9 8 EBCs Turn Ratio on to increase the range Refer to Measure over range samples on page 23 When automatic ranging is selected the display flashes all 0s when the measurement is less than the range of the instrument...

Страница 29: ... the back of the instrument Figure 2 on page 8 Use dry nitrogen or instrument grade air ANSI MC 11 1 1975 at no greater than 138 kPa 20 psig The manufacturer recommends an air consumption rate of 3 to 10 SCFH standard cubic feet hour When the sample temperature is about or less than 2 C 35 F use a desiccant dryer and particle filter to make sure that the dew point of the air purge is less than the...

Страница 30: ... user instructions 8 Put the flow cell light cover over the flow cell Note The standard sample cell cover of the instrument does not close when the flow cell is installed Clean a flow cell assembly 1 Disassemble the flow cell assembly 2 Clean the inside and outside of the glass parts with a laboratory glass cleaning detergent Follow with multiple rinses with distilled or demineralized water Note A...

Страница 31: ...ower the collection drain assembly to the support stand base to flush the flow cell Use a cell adapter Many different test tubes sample cells and ampules can be used to measure samples when a cell adapter is used Use a cell adapter when the test tube sample cell or ampule is less than 25 mm Refer to Accessories on page 40 for the available cell adapters Use only test tubes and sample cells that ar...

Страница 32: ...nnect a computer to the instrument use a serial communication cable with a DB9 connector Note Use of the specified cable or equivalent is mandatory for CE compliance a shielded cable assembly must be used Configure the printer output 1 Push and hold down the right arrow key for 3 seconds 2 Select 01 using the arrow keys 3 Push ENTER 4 Use the arrow keys to change the value SL Pr slow print 2 5 sec...

Страница 33: ...232 command set Command Description VAL Gets the current measurement with the measurement units LST Gets the calibration standards and coefficients DAT Gets the current date To change the date enter DAT MM DD YY MM month DD day YY year then push Enter TIM Gets the current time in 24 hour format To change the time enter TIM HH MM HH hour MM minutes then push Enter RMN Gets the recorder minimum valu...

Страница 34: ...er Stopper and mix Table 6 Formazin standard preparation continued Standard Step 1 Step 2 Step 3 200 NTU Add 50 mL of dilution water to a clean 100 mL class A volumetric flask With a TenSette1 Pipet add 5 00 mL of well mixed 4000 NTU formazin stock solution to the 100 mL flask Dilute to the mark with dilution water Stopper and mix 1000 NTU Add 50 mL of dilution water to a clean 100 mL class A volu...

Страница 35: ... sample cells on page 20 1 Remove the filter assembly Refer to Change the filter assembly on page 36 2 Clean and inspect the lens of the USEPA filter assembly Refer to Clean the filter assembly on page 36 3 Hold the tab of the USEPA filter assembly so that the arrows point toward the front of the instrument Push the filter assembly fully into the housing 4 Push CAL The S0 light turns on The NTU va...

Страница 36: ... 10 Push ENTER The instrument display counts down from 60 to 0 and then measures the standard The instrument shows the next expected standard e g 20 00 The S1 light turns on 11 Remove the sample cell from the sample cell holder 12 Do steps 5 11 for the other formazin standards from lowest to highest NTU standard Mix each formazin standard well and rinse the sample cell two times with formazin stan...

Страница 37: ...standards Refer to Change the calibration points on page 35 Note Unknown performance may occur if standards other than the recommended calibration points are used The recommended calibration points 0 1 20 200 1000 and 4000 NTU provide the best calibration accuracy Refer to Application note 128 Calibration Methods for Low Level Turbidity Measurement Prepare formazin standards user selected User sel...

Страница 38: ... assembly fully into the housing Clean the filter assembly Note Be careful not to push the lens out of the filter assembly 1 Clean both sides of the lens of the filter assembly with glass cleaner lens cleaner or isopropyl alcohol and a cotton tipped swab or lens tissue 2 Inspect the filter glass for scratches or other damage 3 If a cloudy circle is seen around the edge of the filter the filter mat...

Страница 39: ...1 English 37 ...

Страница 40: ...ation in an error condition Push ENTER to clear an error code from the display Note Any calibration being calculated when an error occurs is discarded The old calibration is kept Table 7 Error codes Error Description Solution ERR01 The turbidity of the dilution water is greater than 0 5 NTU Start the calibration again with lower turbidity dilution water Note Ignore ERR01 when the sample cell diame...

Страница 41: ...t the external printer is connected correctly 2 Make sure that the external printer is selected online Table 7 Error codes continued Error Description Solution ERR10 System voltage out of range 1 Turn the instrument off and then back on 2 Contact Customer Service if the error occurs again ERR11 System loop test error 1 Turn the instrument off and then back on 2 Contact Customer Service if the erro...

Страница 42: ... for some selling regions Contact the appropriate distributor or refer to the company website for contact information Replacement parts Description Quantity Item no Calibration kit StablCal sealed sample cells 0 1 20 200 1000 and 4000 NTU 1 2662105 Cover sample cell compartment 1 4702500 Cover lamp access 1 4703200 Dust cover 1 4703000 Replacement parts continued Description Quantity Item no Filte...

Страница 43: ... verification standards not for instrument calibration 100 mL 2723342 0 3 NTU StablCal low level turbidity verification standards not for instrument calibration 100 mL 2697942 0 5 NTU StablCal low level turbidity verification standards not for instrument calibration 100 mL 2698042 TenSette Pipet 1 0 10 0 mL 1 1970010 Accessories continued Description Quantity Item no TenSette Pipet Tips 250 219972...

Страница 44: ...42 English ...

Страница 45: ......

Страница 46: ...h com www hach com HACH LANGE GMBH Willstätterstraße 11 D 40549 Düsseldorf Germany Tel 49 0 2 11 52 88 320 Fax 49 0 2 11 52 88 210 info hach lange de www hach lange de HACH LANGE Sàrl 6 route de Compois 1222 Vésenaz SWITZERLAND Tel 41 22 594 6400 Fax 41 22 594 6499 Hach Company Hach Lange GmbH 2012 2014 All rights reserved Printed in Germany ...

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