Cannon Densi-H Operator's Manual

Densi-H
CAL
Densi-H
Handheld Density/Specific Gravity Meter
Operator’s Manual
Revision 2.0, February 5, 2016
Table of Contents
1 Introduction
3
2 Safety information
3
2.1 Definitions of signal words and warning symbols 3
2.2 Product specific safety notes 3
3 Description of the instrument
6
3.1 Overview 6
3.2 Display 7
3.3 Keys 7
4 Tutorial
8
4.1 Inserting batteries 8
4.2 Configuration 9
4.3 Test measurement 10
4.4 Adjustment 10
4.5 Cleaning 11
4.6 Switching off and on 11
5 Menu (menu)
11
5.1 Using the menu 11
5.2 Measurement Unit (Measure Unit) 12
5.3 Temperature Unit (Temp. Unit) 15
5.4 Measure Mode 15
5.5 Adjustment Mode (Calib. Mode) 16
5.6 Interface 16
5.7 Beep 16
5.8 Background Lightning and LCD-Contrast (LCD) 17
5.9 Automatic Switch-off (Power) 17
5.10 Software Version (Version No.) 17
5.11 Date and Time (Date&Time) 17
5.12 Identification 17
6 Measurement (meas)
17
6.1 Procedure for proper measurement 17
6.2 Filling the measuring cell using the built-in sample pump 18
6.3 Filling the measuring cell using an external syringe 18
6.4 Measuring 19
6.5 Saving the results 19
6.6 Displaying and marking saved results 20
6.7 Printing and transferring results 20
6.8 Deleting results 21
7 Adjustment (cal)
21
7.1 Adjusting the measuring cell with water 22
7.2 Adjusting the measuring cell with a density standard 22
7.3 Adjusting the measuring cell with air 23
7.4 Adjusting the temperature display 24
8 Interface
25
8.1 RS-P26 printer settings 25
8.2 Data transfer to PC 25
8.3 Data format 25
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9 Error messages and malfunctions
26
10 Cleaning and maintenance
27
10.1 Cleaning the measuring cell 27
10.2 Cleaning the housing 27
10.3 Replacing the sample tube 28
10.4 Replacing the sample pump 28
11 Standard and optional equipment
28
11.1 Standard equipment 28
11.2 Optional equipment 29
12 Technical data
30
13 Appendix
32
13.1 Density of pure water (0…40 °C) 32
13.2 Temperature-compensation coefficients α 32
Index
35
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1 Introduction
The CANNON Densi-H is a portable measuring instrument suited for determining the density of liquids. The instrument uses the oscillating body method. To fill the measuring cell the built-in sample pump or a syringe may be used. The results are automatically calculated into one of the following units: density, specific gravity, API degrees, Brix, % Alcohol, % H2SO4, °Baumé, °Plato, Proof or a user-defined unit. The value is then shown on the backlit display. For exact measurements, it is imperative to correct the temperature’s influence on the density. Depending on the selected unit the Densi-H carries out this result correction automatically. For this task, the instrument uses either internally- stored tables or one of the 10 temperature-compensation coefficients entered by the user. The results, along with the sample identification, temperature, temperature­coefficient, date and time can be saved. Together with the instrument identification they can then, via the integrated infrared interface, be transferred to the computer or printed out on a printer.
2 Safety information
Read and understand the instructions in this manual before you use
the instrument.
Keep this manual for future reference.
Include this manual if you pass on the instrument to other parties.
If the instrument is not used according to the instructions in this manual or if it is modified, the safety of the instrument may be impaired and CANNON Instrument Company® assumes no liability.
2.1 Definitions of signal words and warning symbols
Safety notes are marked with signal words and warning symbols. These show safety issues and warnings. Ignoring the safety notes may lead to personal injury, damage to the instrument, malfunctions and false results.
WARNING
for a hazardous situation with medium risk, possibly resulting in severe injuries or death if not avoided.
CAUTION
for a hazardous situation with low risk, resulting in minor or medium injuries if not avoided.
NOTICE
for a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data.
Note
(no symbol) for useful information about the product.
Warning symbols
Harmful substance
Acid / Corrosion
2.2 Product specific safety notes
The instrument has been tested for the experiments and intended purposes documented in the appropriate manual. However, this does not absolve you from the responsibility of performing your own tests of the products supplied by us regarding their suitability for the methods and purposes you intend to use them for.
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Intended use
The measuring instrument is intended for performing measurements for determining the density of liquids.
Any other type of use and operation beyond the limits of technical specifi­cations without written consent from CANNON Instrument Company®, is considered as not intended.
Staff qualification
Incorrect use of the instrument or the chemicals used in the analysis can lead to death or injury. The following qualifications are needed for operating the instrument.
Knowledge and experience in working with toxic and caustic
substances.
Knowledge and experience in working with standard laboratory
equipment.
Knowledge and experience in working in accordance with general lab
safety rules.
Protective Clothing
Wear protective clothing in the laboratory when working with hazardous or toxic substances.
Wear suitable eye protection such as goggles.
Use appropriate gloves when handling chemicals or hazardous substances and check their integrity before use.
Wear a lab coat.
Safety notes
WARNING
Danger of injuries and death due to harmful substances!
Chemicals can cause injuries if they come in contact with bare skin or are inhaled.
1 When using chemicals and solvents, comply with the
instructions of the producer and the general lab safety
rules. 2 Set up the instrument in a well-ventilated location. 3 Clean any spills immediately. 4 If you measure substances which form toxic gases,
place the instrument in a fume hood.
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WARNING
Risk of chemical burns from acids and alkalis!
The contact with acids and alkalis can cause severe Poisoning, burns, skin irritation and cause eye damage.
1 Observe and comply the Specifications of the material
safety data sheets of the used testing medium.
2 When working with acids and alkalis always wear
protective clothing, chemical protective gloves und
protective goggles. 3 Do not breathe and swallow acids and alkalis. 4 Avoid skin contact with acids and alkalis. 5 Rinse eye immediately with clear water after eye contact.
Seek immediate medical help.
NOTICE
Danger of material damage due to non-intended use of the device!
Non-intended use can damage the device. 1 Never press on the measuring cell window. This can
influence the oscillation characteristics of the measuring
cell. 2 Do not clean the measuring cell with concentrated NaOH
(causic soda) or HF (hydrogen fluoride). Both
substances chemically corrode the measuring cell. 3 Use batteries of the specified type only. Otherwise,
proper operation cannot be guaranteed. 4 Do not submerge the housing in liquid. The instrument
is only resistant to splashed water.
Site requirements
The instrument has been developed for operation in a well-ventilated area. Avoid the following environmental influences:
Conditions outside of the ambient conditions specified in the technical
data
Powerful vibrations
Direct sunlight
high humidity present
Corrosive gas atmosphere
Explosive atmosphere of gases, steam, fog, dust and flammable dust
Powerful electric or magnetic fields
only ambient temperatures between -20 °C and 70 °C
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3 Description of the instrument
3.1 Overview
1
2
3
5
6
7
8
12 1113
10
4
9
Densi-H
CAL
1 Backlit Display
2 Keypad
3 Drain button
4 Sample pump
5 Cover of sample pump
6 Connector for syringe adapter
7 Fixing screw for sample tube
8 Sample tube
9 Measuring cell
10 Infrared interface
11 Lock button
12 Fill button
13 Battery compartment cover
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3.2 Display
1 2 3 4
5 6 7 8 9 10
11
(20)
(20)
1 Selected unit of measurement
2 Result
3 Sample identification (a…z or space)
4 Sample number, or error number if an error has occurred
5
Appears if Stability is set to Auto
6
Appears if Memory in is set to Auto
7
Appears if Memory out is set to Auto. If a printer or PC is connected, the data are transferred automatically
8 Battery-power indicator
9 Temperature (°C / °F)
10 Appears if delete mode is activated
11 Mark for results
For the identification of invalid or incorrect results or for marking a sample change
Δ
Reference temperature (for the units Comp. Density and SG only)
3.3 Keys
3
1
2
4
5
6
Red symbols:
Press key longer than 2 seconds.
Blue symbols:
Press key briefly.
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No. Symbol Short key-press Long key-press
1 Move marker to the left
Mark saved results
Delete saved results
2 Move marker upward
Select sample number
(ascends)
Switch between Yes and
No setting
Select temperature-
compensation coefficient α
3 Move marker to the right
Display saved results
Transfer one saved
result to a printer/PC
Transfer a series of
saved results to a printer/PC
4 Move marker downward
Select sample number
(descends)
Switch between Yes and
No setting
Call up adjustment
mode
5
esc
Exit the menu Switch instrument on or
off
6
ok/meas.
Start measurement
Confirm input
Confirm data delete
Confirm data transfer
While pressing and
holding key 5: enter the menu
Only the arrow symbols are used to represent keys 1 – 4 in the following operating instructions.
4 Tutorial
4.1 Inserting batteries
1 Open the battery compartment cover on the back of the Densi-H.
2 Remove battery compartment.
3 Insert batteries into the battery compartment, observing correct polarity.
4 Insert battery compartment, ensuring that the contacts of the battery
compartment face the instrument.
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5 Close battery compartment cover. ð The instrument switches on automatically and is immediately ready for
operation. With the backlighting switched off the battery lasts about 90 hours.
Note
§ If nothing appears in the display.
− Check polarity of the batteries and battery compartment.
4.2 Configuration
Configuring the instrument for test measurement.
Entering the menu
− Press the keys ok and esc simultaneously.
ð The instrument switches to the FUNCTION menu. Measure Unit
appears in reverse display (white on black).
Selecting setting
1 Press the ok key.
ð The Measure Unit menu is confirmed. 2 Press the key repeatedly until SG (t/t) is marked. 3 Press the ok key.
ð SG (t/t) is confirmed.
Setting date and time
1 Press the key repeatedly until Date&Time is marked. 2 Press the ok key.
ð The Date&Time menu is confirmed.
Date is marked.
3 Press the ok key.
4 Use the side arrows to select the number to change, and use the up
and down arrows to change the value. 5 Press the ok key.
ð The Date is set. 6 Use the key to switch to Time and confirm with ok.
7 Set the time as described above.
ð The Time is set.
Exiting the menu
− Press the esc key.
ð The instrument is configured for test measurement.
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4.3 Test measurement
12
3
1 Push drain button (3) downward completely.
2 Ensure that the sample tube is located in the accompanying density
standard or in distilled water.
3 Press the fill button (12) slowly to fill the measuring cell.
4 Ensure that no air bubbles are contained within the measuring cell. 5 Press the meas. key.
ð The instrument automatically executes a measurement and the result
appears in reverse display. The result for water must be 1.000 in the selected measurement unit SG (t/t).
Note
§ If the deviation is ≤ 0.0005
− Adjustment is ok, the instrument is ready for measurement.
§ If the deviation is > 0.0005
− Adjust instrument, see [Adjustment}10].
4.4 Adjustment
Note
You must be in the "expert" mode to perform a water calibration 1 Press and hold the key until CALIB (Water) appears on the display.
ð The instrument adjusts automatically (duration: approx. 1 minute).
After adjustment is completed, the measured deviation from the theoretical value and Execute? ( No ) appears.
2 Press the or key.
ð Execute? ( Yes ) appears.
3 Press the ok key. ð The adjustment is confirmed.
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4.5 Cleaning
§ Clean the measuring cell daily with a suitable cleaning liquid. The
built-in sample pump or an external syringe can be used to fill the
measuring cell with cleaning liquid.
1 Press the drain button downward completely to empty the measuring
cell.
2 Press the fill button to fill the measuring cell with cleaning liquid.
3 For very dirty measuring cells, let the inside of the cell soak in the
cleaning liquid.
4 Repeat cleaning if necessary.
5 If the housing is soiled, clean with a cleaning tissue.
4.6 Switching off and on
Switching Off
− Press and hold the esc key until the display is turned off.
ð The instrument is now turned off.
Switching On
− Press and hold the esc key until the display appears.
ð The instrument is ready for operation.
5 Menu (menu)
The menu of the Densi-H offers the following functions:
[Measurement Unit (Measure Unit)}12]
[Temperature Unit (Temp. Unit)}15]
[Measure Mode}15]
[Adjustment Mode (Calib. Mode)}16]
[Interface}16]
[Beep}16]
[Background Lightning and LCD-Contrast (LCD)}17]
[Automatic Switch-off (Power)}17]
[Software Version (Version No.)}17]
[Date and Time (Date&Time)}17]
[Identification}17]
5.1 Using the menu
Entering the menu
− Press the keys ok and esc simultaneously.
ð The instrument switches to the menu.
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Selecting functions
1 Press the and keys repeatedly until the desired function is
marked.
2 Press the ok key to activate the marked function. ð The instrument switches to the corresponding submenu or activates the
desired function.
Numerical input
1 Use the and keys to select the decimal places.
2 Use the and keys to change the value. 3 Press the ok key to confirm the value.
Exiting the menu
− Press the esc key.
5.2 Measurement Unit (Measure Unit)
The following units are available for selection:
Density
Available density units:
g/cm3 lb/gal (US)
1 g/cm³ = 8.3454 lb/gal
lb/gal (IP)
1 g/cm³ = 10.0224 lb/gal
Comp. Density (Temperature-compensated density)
Density measurement in g/cm3 at a reference temperature. All results at the same reference temperature (T0 , e.g. 20 °C), regardless of the measuring temperature (T). Compensated density = measured density * (1 + α * (T – T0)) 10 temperature-compensation coefficients can be saved.
The following input is required:
Comp. No.
Number of the temperature-compensation coefficient (0…9)
Comp. Temp.
Reference temperature (T0)
a*1000
Temperature-compensation coefficient
For typical temperature-compensation coefficients see [Temperature­compensation coefficients α}32] and for calculation of α see [Measurement Unit (Measure Unit)}14].
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SG (t/t) (specific gravity)
T Measuring temperatures
ρ
s
Density of the sample at T
ρ
w
Density of water at T
SG (specific gravity, temperature-compensated)
ρs(T0) Density of the sample, temperature-compensated for T
0
ρw(T1) Density of water at T
1
10 temperature-compensation coefficients can be saved.
The following input is required:
Comp. No.
Number of the temperature-compensation coefficient (0…9)
Comp. T.
T0/T1 °C (enter temperatures T0 and T1)
a*1000
Temperature-compensation coefficient
For typical temperature-compensation coefficients see [Temperature­compensation coefficients α}32] and for calculation of α see [Measurement Unit (Measure Unit)}14].
API (American Petroleum Institute)
The measured values are converted to a reference temperature of 15 °C or 60 °F. This conversion is based on API tables:
product group A:
– crude oil
product group B:
– fuel
– petroleum products
product group D:
– lubricants
The result can be expressed as density (e.g. API A (Density)), or directly in API degrees (e.g. API A (degrees)).
Brix (Sucrose)
Measurement of the sucrose concentration, percent weight at 20 °C.
Alcohol (Ethanol)
Measurement of the ethanol concentration in water, percent weight (Wt%) or percent volume (Vol%) at 20 °C.
H2SO4 (Sulphuric acid concentration)
Measurement of the sulphuric acid concentration, percent weight at 20 °C.
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Baume (°Baumé scale)
Measurement in °Baumé (heavy Baumé for d>1, light Baumé for d<1) calculated to a reference temperature.
10 temperature-compensation coefficients can be saved. Input of temperature-compensation coefficients via Comp. Density.
For typical temperature-compensation coefficients see [Temperature­compensation coefficients α}32] and for calculation of α see [Measurement Unit (Measure Unit)}14].
Plato
Measurement of the °Plato at 20 °C.
Proof
Measurement of the Proof degree at 60 °F. The Proof degree is a unit used to determine the ethanol content.
Proof (US):
Measurement with US unit (100 v/v % = 200 US Proof ).
Proof (IP):
Measurement with IP unit (100 v/v % = 175 British Proof ).
Conc. (Concentrations)
Measurement of the concentration via the input of the desired concen­tration-conversion formula y = a + bx at a reference temperature.
y concentration in % or without units a, b sample-dependent coefficients x measured density
1/compensated density - 1
compensated density - 1
compensated density
1/specific gravity - 1
specific gravity - 1
specific gravity
10 temperature-compensation coefficients can be saved. Input of temperature-compensation coefficients via Comp. Density.
For typical temperature-compensation coefficients see [Temperature­compensation coefficients α}32] and for calculation of α see [Measurement Unit (Measure Unit)}14].
Calculation of the temperature-compensation coefficient α
1 Measure density at a temperature (T1) above the normal measuring
temperature.
2 Measure density at a temperature (T2) below the normal measuring
temperature.
3 Calculate α according to the formula:
density at T2 = density at T1 * (1 + α * (T1 – T2)) or
4 Enter value a x 1000 into the instrument.
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Note
The temperatures T1 and T2 have to be entered in the selected unit °C or °F, see [Temperature Unit (Temp. Unit)}15].
Example
(measured) density at 26 °C (T1) = 0.7844 g/cm
3
(measured) density at 15 °C (T2) = 0.7937 g/cm
3
Enter this value into the instrument.
10 temperature-compensation coefficients can be saved. Input of temperature-compensation coefficients via Comp. Density. For typical temperature-compensation coefficients, see [Temperature­compensation coefficients α}32].
5.3 Temperature Unit (Temp. Unit)
Data in °C or °F (selectable).
5.4 Measure Mode
Configuration of sample identification, stability mode and method of data storage.
Sample Name
Sample identification. A letter (a…z or space) can be set for the identi­fication of samples.
Stability
Stability control.
Auto
– The result is accepted automatically when the display is stable.
Manu
– Result accepted by pressing the ok key.
Mode
Method of data storage.
Labo
– By pressing the ok key the result is saved and transferred (printer,
PC).
Field
– By pressing the ok key the result is saved.
Custom
– User-defined setting.
Memory in: Save results. – Auto: Save result automatically. – Manu: Result saved by pressing meas. key.
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Memory out: Transfer result to PC or printer. – Auto: Transfer result automatically. – Manu: Transfer result by pressing the key.
5.5 Adjustment Mode (Calib. Mode)
Off
Adjust measuring cell with accompanying density standard or distilled water.
On
Adjust measuring cell with desired density standard. The following input is required:
Density
– Density of the density standard (g/cm³) at the reference
temperature.
Temp.
– Reference temperature
a*1000
– Temperature-compensation coefficient of the density standard *
1000
5.6 Interface
PRN
Printer interface. Printer with serial interface and connected infrared adapter. Results are formatted for output to a printer.
Transfer rate (baud rate), parity and stop and data bits must be configured according to the peripheral device. The following settings are required for the RS-P26 printer:
Baud rate: 9600
Parity: none
Stop bits: 1
Data bits: 8
RS
Serial interface. The Excel macro “PortableCapt” for data transfer to the computer via the infrared adapter is located on the CD-ROM.
IrDA
Data transfer to the PC with the integrated IrDA interface in accordance with protocol 1.20.
5.7 Beep
Off
Beep off.
On
Beep on.
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5.8 Background Lightning and LCD-Contrast (LCD)
Light
The backlighting is turned off automatically 5 seconds after the last time a key has been pressed (Auto off), or it is always off (Always off).
Contrast
Display contrast is adjustable to one of 9 levels with the keys.
5.9 Automatic Switch-off (Power)
Off
Automatic switch-off off. The instrument must be switched off manually.
On
The instrument switches off automatically if not operated for 10 minutes.
5.10 Software Version (Version No.)
The software version is displayed.
5.11 Date and Time (Date&Time)
The settings for date and time can be edited here. The date is displayed in the format year/month/day (e.g. 2003/03/04 for March 4, 2003). Both date and time are included in the data transfer to a printer or computer.
5.12 Identification
An identification consisting of 10 letters and numbers (instrument name, user, etc.) may be entered here. This identification will be included in the data transfer to a printer or computer.
6 Measurement (meas)
6.1 Procedure for proper measurement
Procedure for proper measurement
1 Test the instrument for accuracy with the accompanying density
standard or distilled water before beginning any measurements, see
[Test measurement}10].
2 Insufficient cleaning leads to remaining residue in the measuring cell
and, therefore, incorrect results. Ensure that the measuring cell is clean
before each measurement.
3 Check the sample for chemical resistance of the instrument materials.
Instrument materials
Sample tube: PTFE (polytetrafluorethylene)
Measuring cell: Borosilicate glass
Measuring cell holder: PPS (polyphenylene sulphide)
Sample pump: PP (polypropylene)
4 Ensure that the samples to be measured are liquid enough to be
sucked up or injected.
5 Ensure that the samples to be measured can be dissolved with a
solvent suitable for cleaning the measuring cell.
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6 Ensure that the samples to be measured are homogeneous (no
emulsions or suspended particles, no air bubbles).
7 Ensure that the samples to be measured have reached ambient
temperature in the measuring cell.
8 For samples which are 20 °C colder than the ambient temperature,
heat the sample before beginning the sampling procedure. ð The unit display flashes when the difference in temperature between
the sample and the ambient air is greater than ±5 °C.
9 For samples of high viscosity (> 2000 mPa*s), use an external
syringe to fill the measuring cell.
6.2 Filling the measuring cell using the built-in sample pump
1 Ensure that the sample tube is in the sample.
2 Press the fill button (12) slowly to fill the measuring cell.
3 Ensure that there are no air bubbles in the measuring cell.
6.3 Filling the measuring cell using an external syringe
11
3
6
Densi-H
CAL
1 Press the drain button (3).
2 Slide up the lock button (11).
3 Remove the screw stopper (6) with a coin.
4 Screw in the adapter for the external syringe.
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5 Hold the sample tube over a waste container.
6 Slowly inject the sample into the measuring cell.
7 Ensure that there are no air bubbles in the measuring cell.
8 Do not remove the syringe while measuring.
6.4 Measuring
The procedure is dependent upon the settings in the menu, see [Measure Mode}15].
§ The symbol appears in the display: Measuring with automatic
stability control
− Press the meas. key to start measuring. ð The symbol blinks during measurement. The result appears in
reverse display.
§ The symbol does not appear on the display: Measuring with
manual stability control
The instrument measures continuously.
1 Wait until the displayed value stabilizes. 2 If the result is to be saved: Press the meas. key.
ð The result appears in reverse display.
Measuring with temperature-compensation coefficients (α)
§ (Comp. Density, SG, Conc. or Baume on the display)
1 Press the key until a previously-saved temperature-compensation
coefficient appears in the display, e.g. α1 = 0.132.
2 Select the desired coefficient using the and keys. 3 Confirm the selected coefficient with the ok key.
4 Measure using either automatic or manual stability control.
Emptying the measuring cell
1 Hold the sample tube over a waste container.
2 Press drain button (3) downward slowly and move it up again with
the fill button (12).
See also
2 Measure Mode [}15]
6.5 Saving the results
The instrument can save up to 1100 results internally. Each time a result is saved, the number of internally-stored values increases by one. The procedure for saving the results is dependent upon the settings in the menu ([Measure Mode}15]).
The symbol appears in the display: Saving all results automatically
The instrument saves all results automatically.
The symbol does not appear in the display: Saving selected results manually
Save the result:
− Press the meas. key. Do not save the result:
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− Press the esc key.
6.6 Displaying and marking saved results
Displaying saved results
1 Press the key.
ð The sample number flashes and the symbol appears.
2 Using the and keys to scroll through the saved results .
Marking results
For the identification of invalid or incorrect results or for marking a sample change.
1 Select the desired sample number using the and keys. 2 Press the meas. key.
ð The selected sample number is marked with an asterisk.
Note
The marking is removed if the sample has already been marked.
6.7 Printing and transferring results
Conditions
The interface and peripheral device are configured properly, see
[Interface}16] and [Interface}25].
For PRN and RS interfaces, the infrared adapter must be connected to
the printer/PC.
The procedure for printing and transferring results is dependent upon the settings in the menu, see [Measure Mode}15].
Important
To transfer or print results, hold the instrument in the direction of the infrared adapter at a maximum distance of approx. 20 cm.
The symbol appears in the display: Printing or transferring results automatically
Every displayed result is transferred automatically.
The symbol does not appear in the display: Printing or transferring selected results manually
1 Press the key.
2 Select desired result with the or key. 3 Press the meas. key to transfer/print the result.
ð The symbol flashes and the result is transferred.
Printing and transferring results of a series of samples manually
1 Press and hold the key until Memory out, Execute? (All) appears
in the display.
2 Press the or key.
ð Execute? (Range) appears.
3 Press the ok key to confirm.
4 Using the arrow keys to enter the desired series of samples (from…
to…).
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5 Press the ok key to transfer the series of samples. ð The sample series (from ... to ...) is confirmed. The symbol flashes
and the results of the selected series of samples are transferred.
To print or transfer all results manually
1 Press and hold the key until Memory out, Execute? (All) appears
in the display. 2 Press the ok key.
ð The symbol in the display flashes and all results are transferred.
ð After a successful transfer, the user is asked whether he/she would like
to delete the transferred results: Memory All ClearExecute? (No).
Leaving transferred results in tact
− Press the ok button.
ð Memory All Clear Execute? (No) is confirmed.
Deleting transferred results
1 Press the or key.
ð Execute? (Yes) appears. 2 Press the ok key to confirm.
ð All results are deleted.
See also
2 Interface [}16]
2 Interface [}25]
2 Measure Mode [}15]
6.8 Deleting results
It is not possible to delete individual results with the Densi-H.
Deleting all results
1 Press and hold the key until Memory All Clear Execute? (No)
appears in the display..
2 Press the or key.
ð Execute? (Yes) appears. 3 Press the ok key to confirm.
ð All results are deleted.
7 Adjustment (cal)
Before adjusting
− Carry out a test measurement before adjusting the measuring cell, see
[Test measurement}10].
Test measurement result < 0.9995 or > 1.0005
− Check if the measuring cell is dirty, clean if necessary and repeat the
test measurement.
Test measurement result once again < 0.9995 or > 1.0005
− Readjust instrument.
Densi-H 21Revision 2.0, February 5, 2016
7.1 Adjusting the measuring cell with water
Settings in the menu
Calib. Mode: off
Adjusting
1 Ensure that the measuring cell and sample tube are clean.
2 Fill the clean measuring cell with the accompanying density standard
or distilled water and ensure that no air bubbles are allowed to enter.
3 Press and hold the key until CALIB (Water) appears in the display. ð The instrument adjusts automatically (duration: approx. 1 minute).
After adjustment is completed, the measured deviation from the theoretical value and Execute? (No) appears.
Measured deviation < 0.001
1 Press the or key.
ð Execute? (Yes) appears.
2 Press the ok key to confirm. ð The adjustment is confirmed.
Measured deviation ≥ 0.001
1 Check whether the measuring cell is dirty and if there are air bubbles.
2 If the measuring cell is clean and contains no air bubbles, press the
or key.
ð Execute? (Yes) appears. 3 Press the ok key. 4 If the measuring cell is dirty or contains air bubbles, press the ok
button.
ð Execute? (No) is confirmed.
5 Clean the cell if necessary and readjust.
7.2 Adjusting the measuring cell with a density standard
If a different density range is to be used, the measuring cell can be adjusted using a density standard of your choice (e.g. toluene from the NIST, National Institute of Standards and Technology) instead of distilled water.
Setting in the menu
1 Calib. Mode: On
2 Enter the following density standard values into the menu:
Density
Density of the density standard (g/ cm³) at the reference temperature
Temp.
Reference temperature
a*1000
Temperature-compensation coefficient of the density standard * 1000
Adjusting
1 Ensure that the measuring cell and sample tube are clean.
2 Fill the clean measuring cell with the density standard (e.g. Toluene)
ensuring that no bubbles are allowed to enter.
Densi-H22 Revision 2.0, February 5, 2016
3 Press and hold the and keys simultaneously until CALIB (STD)
appears in the display.
ð The instrument adjusts automatically (duration: approx. 1 minute).
After adjustment is completed, the measured deviation from the theoretical value and Execute? (No) appears.
Measured deviation < 0.001
1 Press the or key.
ð Execute? (Yes) appears.
2 Press the ok key. ð The adjustment is confirmed.
Measured deviation ≥ 0.001
1 Check whether the measuring cell is dirty and if there are air bubbles.
2 If the measuring cell is clean and contains no air bubbles, press the
or key. ð Execute? (Yes) appears.
3 Press the ok key.
ð Execute? (Yes) is confirmed.
4 If the measuring cell is dirty or contains air bubbles, press the or
key ð Execute? (No) appears.
5 Press the ok key.
ð Execute? (No) is confirmed.
6 Clean the cell and readjust if necessary.
7.3 Adjusting the measuring cell with air
The Densi-H measures with the specified accuracy if the measuring cell is correctly adjusted with the accompanying density standard or distilled water. Additional adjustment with air is generally not necessary, but is recommended when:
The measuring cell is replaced.
The displayed density of air is < 0.0007 g/cm³ or > 0.0015 g/cm³.
Setting in the menu
Calib. Mode: Off.
Densi-H
CAL
Preparing the measuring cell
1 Clean the measuring cell with a suitable solvent and rinse with
ethanol.
Densi-H 23Revision 2.0, February 5, 2016
2 Hold the sample tube over a waste container.
3 Connect a tube from the connection of the external syringe to an air
pump (volume flow 1…2 l/min) connected to dry tube filled with 5…
10 g silica gel.
4 Dry measuring cell for approx. 5…10 min.
5 Wait approx. 30 min. until the measuring cell has reached the ambient
temperature.
Adjusting
1 Press the and keys simultaneously.
ð CALIB (AIR) appears in the display. The instrument adjusts the
measuring cell automatically. Adjustment is complete when CALIB (AIR) disappears (after approx. 2 min.).
2 Adjust measuring cell with water or a density standard of your choice.
7.4 Adjusting the temperature display
Adjustment of the temperature display is generally not necessary, as the Densi-H was adjusted at the factory before shipment.
If the displayed temperature deviates from the actual temperature, carry out the following steps for adjustment:
1 Check settings in the Measure Mode menu.
Stability: Manu
Memory in: Manu
2 Switch instrument off.
3 Set instrument aside for approx. one hour at a constant temperature.
4 Switch instrument on. 5 Press the ok. key briefly; the display appears in reverse.
6 Read temperature on the instrument and from an external thermometer.
7 Determine and log the difference between the actual temperature
(external thermometer) and the temperature displayed on the
instrument.
8 Press the and keys simultaneously.
9 CALIB (°C) or CALIB (°F) (depending on the selected temperature
unit) appears, and the unit flashes.
10 Enter the logged temperature difference (with sign) using the and
keys. 11 Press the ok key.
ð The temperature display is adjusted.
Example
Displayed value on instrument: 21.7 °C Actual temperature: 21.3 °C Difference: 21.3 °C - 21.7 °C = -0.4 °C Value to be entered:
-0.4 (°C)
Densi-H24 Revision 2.0, February 5, 2016
8 Interface
Using the infrared interface of the Densi-H, the stored measurements together with the sample identification, the measurement unit, the temperature, the temperature compensation coefficient, the instrument identification, date and time can be printed out with a printer or transferred to a PC. An infrared adapter or a PC/printer with an IrDA interface is required.
Important
Data transfer is only possible when:
There is visual contact between the infrared adapter and the infrared
interface.
The distance between the Densi-H and the infrared adapter is no more
than 20 cm.
8.1 RS-P26 printer settings
1 Configure the infrared interface of the Densi-H, see [Interface}16].
2 Connect infrared adapter to printer.
3 Switch printer on.
4 Press the menu button on the printer.
5 Set the following serial interface parameters, see the operating
instructions for the printer:
Baud rate: 9600
Parity: None
Stop bit: 1
Data bits: 8
8.2 Data transfer to PC
− Configure the infrared interface of the Densi-H as follows (see [Interface}16]):
Interface: RS
Baud rate: 9600
Parity: None
Stop Bits: 1
Data Bits: 8
1 Connect the infrared adapter to an available serial interface (COM1,
COM2, …) on the PC.
2 Insert the accompanying CD-ROM into the CD-ROM drive of the PC. 3 Install the PortableCapt program (Excel macro). 4 Start the PortableCapt program on the PC.
5 In the Excel macro: select the serial interface (COM1, COM2, …) to
which the infrared adapter is connected.
6 For further procedures, see [Printing and transferring results}20].
8.3 Data format
If RS is selected as interface, the data is transferred in the following format:
Type
1)
Sample No.
2)
Densi-H 25Revision 2.0, February 5, 2016
Data column
STX , , ,
Start Byte = 0
1 1 1 4 1 1 1
Type Date & Time
3)
Data column
,
Start Byte = 10
16 1
Type Result Unit
Data column
, ,
Start Byte = 27
7 1 10 1
Type Temperature
4)
α
6)
6)
α-value
6)
Data column
, , A
5)
, ,
Start Byte = 46
5 1 1 1 1 1 1 5 1
Type Identification
Data column
CR LF EOT
Start Byte = 63
10 1 1 1
1) Sample identification (a…z, space)
2) If result is marked (*); otherwise, space
3) Format yyyy/mm/dd hh:mm
4) Temperature unit (°C or °F)
5) Number of the temperature-compensation coefficient
6) These bytes contain only spaces, unless Comp. Density, SG, Baume or Conc.. is selected as the result unit
9 Error messages and malfunctions
Error Possible causes What to do
E-01
(Adjustm ent error)
Measuring cell not filled with
water
Air bubbles in measuring
cell
Sample tube defective
Measuring cell is dirty
Measuring cell defective
− Fill measuring cell with water
− Use bubble-free, distilled water
− Replace sample tube
− Clean measuring cell
− Call CANNON Instrument Company® Service
E-02
(Measuri ng cell fault)
Measuring cell is dirty
Measuring cell defective
− Clean measuring cell
− Call CANNON Instrument Company® Service
Densi-H26 Revision 2.0, February 5, 2016
Error Possible causes What to do
E-03 Sample temperature not
measured correctly
− Call CANNON Instrument Company® Service
E-04 Error in ambient temperature
measurement
− Call CANNON Instrument Company® Service
E-05
Full appears instead of a sample number:
Data memory full
− Delete data from memory
E-06 Memory fault − Call CANNON Instrument
Company® Service
E-07 Measuring time of 10
minutes exceeded
1 Switch instrument off and on
again
2 Measure using bubble-free,
distilled water
If error appears again:
− Call CANNON Instrument Company® Service
BATT Batteries empty − Replace batteries
[Inserting batteries}8]
Menu setting incorrect
Result = 0.0000 or strongly negative results: Menu setting incorrect
− Set Calib. Mode to Off
10 Cleaning and maintenance
10.1 Cleaning the measuring cell
The built-in sample pump or an external syringe can be used to fill the measuring cell with cleaning liquid.
1 Clean measuring cell daily with a suitable cleaning liquid.
2 For a very dirty measuring cell let the inside of the cell soak with
cleaning liquid.
3 Repeat cleaning if necessary.
10.2 Cleaning the housing
Never use aggressive liquids or solvents to clean the housing of the
Densi-H.
We recommend that you use the cleaning tissues which come with the
instrument.
Densi-H 27Revision 2.0, February 5, 2016
10.3 Replacing the sample tube
1 Loosen fixing screw (7) of sample tube in the direction of the arrow
and remove old sample tube.
2 Insert new sample tube with washer into screw gland of sample tube.
3 Tighten screw gland of sample tube to instrument by hand.
4 Check sample tube for secure seating.
10.4 Replacing the sample pump
Removing cover of sample pump
1 Slightly press together cover of sample pump on grip recesses and
detach it.
2 Pull sample pump out of guide system.
Inserting sample pump
1 Insert new sample pump into guide system.
2 Ensure that the pump plunger (2) and pump body (3) are situated in
the corresponding guides when inserting the sample pump.
3 Check for proper functioning of sample pump.
4 Put the cover of the sample pump back in its place.
11 Standard and optional equipment
Each part identified by an order number can be ordered from CANNON.
11.1 Standard equipment
The instrument is delivered pre-assembled.
Densi-H28 Revision 2.0, February 5, 2016
Description Order number
1 Densi-H density meter with carrying case,
includes:
Densi-H
AAA-type batteries (LR03, 1.5 V)
Density standards (6 ml @ x 10)
95.2001
Cleaning tissues (10)
95.2002
Transfer Pipettes LD-PE (each)
95.2015
50 ml plastic vial with screw cap (each)
95.2014
LabX Direct software CD
95.2013
OperatingInstructions
Bedienungsanleitung
Moded'emploi
ManualdeInstrucciones
Istruzionid'uso
Densito30P
Operating instructions
11.2 Optional equipment
Description Order number
Protective boot cover for Densi-H
95.2016
External syringe adapter
95.2000
Screw plug (external syringe)
95.2008
Densi-H 29Revision 2.0, February 5, 2016
Density standards (6 ml @ x 10)
95.2001
Cleaning tissues (10)
95.2002
Sample tube (with washer) Ø 3/2 mm, L=30 cm
95.2003
Fixing screw for sample tube
95.2004
Sample pump, complete
95.2005
Infrared adapter
95.2012
O-ring for sample pump (each)
95.2006
Sample pump cover
95.2011
Battery compartment cover
95.2009
Packing for battery compartment cover, 2 pcs.
95.2010
Battery compartment
95.2007
12 Technical data
Subject to technical changes.
Densi-H30 Revision 2.0, February 5, 2016
Measurement principle Density measurement using
the oscillating body method
Sample intake Using the built-in sample
pump or an external syringe
Range of density measurement
Accuracy
Resolution
0.0000…2.0000 g/cm³
±0.001 g/cm³
0.0001 g/cm³
Working temperature
Storage temperature
Temperature accuracy
5…35 °C
-20…70 °C
±0.2 °C
Measurement range Brix (d)
Accuracy
0.0...84.0 %
±0.3 %
Measurement range Ethanol (d) wt%
Accuracy
0.0...100.0 %
±1.0 %
Measurement range Ethanol (d) vol%
Accuracy
0.0...100.0 %
±1.0 %
Measurement range H2SO
4
Accuracy
0.0...100.0 %
±1.0 %
Measurement range light Baumé
Accuracy
10...100 °Baumé
±0.4 °Baumé
Measurement range heavy Baumé
Accuracy
0...72 °Baumé
±0.1 °Baumé
Measurement range Plato
Accuracy
0.0...20.0 %
±0.3 %
Measurement range Proof (US)
Accuracy
0.0...200.0
±2.0
Measurement range Proof (IP)
Accuracy
0.0...175.0
±1.75
Display Backlit LC-Display
Materials
Housing PBT (polyester)
Measuring cell Borosilicate glass
Materials which contact the product
PTFE (polytetrafluorethylene) Borosilicate glass PPS (polyphenylene sulfide) PP (polypropylene)
Weight approx. 360 g
Measuring time per sample 1…10 minutes
Data memory 1100 results
Interface Infrared for printer and PC
Battery operation 2 x 1.5 V batteries (LR03);
type AAA
Battery lifetime approximately 90 hours
(with backlighting off)
Densi-H 31Revision 2.0, February 5, 2016
13 Appendix
13.1 Density of pure water (0…40 °C)
Temperature [°C] Density [g/cm3] Temperature [°C] Density [g/cm3]
0 0.99984
1 0.99990 21 0.99799
2 0.99994 22 0.99777
3 0.99996 23 0.99754
4 0.99997 24 0.99730
5 0.99996 25 0.99705
6 0.99994 26 0.99679
7 0.99990 27 0.99652
8 0.99985 28 0.99624
9 0.99978 29 0.99595
10 0.99970 30 0.99565
11 0.99961 31 0.99534
12 0.99950 32 0.99503
13 0.99938 33 0.99471
14 0.99925 34 0.99438
15 0.99910 35 0.99404
16 0.99894 36 0.99369
17 0.99878 37 0.99333
18 0.99860 38 0.99297
19 0.99841 39 0.99260
20 0.99821 40 0.99222
[Chemical Handbook Fundamental Version, Rev. 3, Table 5.2 (1984)]
13.2 Temperature-compensation coefficients α
Substance Temperature range [°C] α • 103/°C
Water 15…30 0.23
Ethanol 0…30 1.09
m-xylene 0…30 0.99
p-xylene 15…30 1.02
Glycerine 15…30 0.49
Chloroform 0…30 1.26
Carbon tetrachloride 0…30 1.22
Toluene 0…30 1.07
Benzene 6…30 1.21
Methanol 6…30 1.18
Acetone 0…30 1.42
Bromobenzene 0…30 0.91
Cyclohexane 0…30 1.20
Isopropanol 0…30 1.06
Densi-H32 Revision 2.0, February 5, 2016
Substance Temperature range [°C] α • 103/°C
n-nonane 0…30 1.08
Densi-H 33Revision 2.0, February 5, 2016
Densi-H34 Revision 2.0, February 5, 2016
Index
A
Adjusting the temperature
display 24
Adjustment 21
Adjustment Mode (Calib. Mode)
16
Alcohol 13
API (American Petroleum
Institute) 13
Automatic saving 15, 19
Automatic stability control 15
Automatic switch-off 17
B
Backlit Display 6
Battery 6, 8, 28
Baud rate 16, 25
Baumé 14
Beep 16
Brix 13
C
Cal 21, 22, 23, 24
Calib. Mode 16
Cleaning 27
Cleaning cloths 28
Cleaning the housing 27
Cleaning the measuring cell 27
Cleaning work
Housing 27
Measuring cell 27
Comp. Density 12
Conc. 14
Concentrations 14
Configuring 9
D
Data bits 16, 25
Data format 25
Data storage 15
Data transfer 16, 17, 25
Date 9, 17
Deleting results 21
Density of pure water 32
Density standards 28
Display 7
Displaying saved results 20
E
Error messages 26
Ethanol 13
Excel macro 16, 25
F
Fault messages 26
Field 15
Filling Button 6
H
H2SO4 13
Heavy Baumé 14
HelloCD 16, 25
I
Identification 17
Infrared adapter 25, 29
Infrared interface 6, 25
Inserting batteries 8
Interface 16, 25
Interface description 25
IrDA 16, 25
IrDA interface 25
K
Keypad 6
L
Labo 15
Light 17
Light Baumé 14
Locking button 6
Densi-H 35Revision 2.0, February 5, 2016
M
Maintenance 27
Maintenance work
Replacing the sample tube
28
Malfunctions 26
Manual saving 15, 19
Manual stability control 15, 19
Marking saved results 20
Measure Mode 15
Measure Unit 12
Measurement 17
Measuring 19
Measuring cell 6
Menu 9, 11
Mode 15
O
O-ring 29
P
Parity 25
Pipettes 28
Plato 14
PortableCapt 16, 25
Power 17
Printer 25, 29
Printing and transferring results
20
PRN 16
Proof 14
Protective clothing 4
Protocol 25
R
Replacing the sample tube 28
Result 7
RS 25
RS-P26 16, 25
S
Safety Information
Protective clothing 4
Signal words 3
Warning Symbols 3
Sample identification 7, 15
Sample name 15
Sample pump 6, 28, 29
Sample tube 6, 28, 29
Saving the results 19
Scope of delivery 28
SG (t/t) 13
Signal words 3
Software version 17
Specific gravity 13
Specific gravity, temperaturec-
ompensated 13
Stability 15
Stability control 15
Stability mode 15
Stop bits 25
Sucrose 13
Sulphuric acid concentration 13
Switching Off 11
Switching on 11
T
Technical data 30
Temp. Unit 15
Temperature Unit 7, 15
Temperature-compensated
density 12
Temperature-compensation
coefficient 14
Temperature-compensation
coefficients 12, 32
Temprature-compensation
coefficients 19
Test measurement 10
Time 9, 17
U
Unit of measurement 6
Densi-H36 Revision 2.0, February 5, 2016
V
Version No. 17
W
Warning Symbols 3
Densi-H 37Revision 2.0, February 5, 2016
Densi-H38 Revision 2.0, February 5, 2016
CANNON Instrument Company® 2139 High Tech Road State College, PA 16803
30312854
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