Vibra HT CEN Series User manual

HT(R) CEN / HT(R) CE Series
Specific Gravity Measurement Kit
Operation Manual
270021M21

はくし

i
Preface
Thank you very much for having purchased Specific Measurement Kit for Electronic Analytical Balance
HT(R CEN / HT(R CE series.
This document describes how to install and work with the Specific Measurement Kit.
Instructions
●The copyright of this document belongs to SHINKO DENSHI CO., LTD.. Reprinting or
duplicating of all or part of this document without notice shall not be allowed.
●Please note that product improvement or modification may cause partial discrepancy between
the product and the description of this document.
●The description of this document is subject to change without notice.
●This document has been created carefully. In case that, however, any error or imperfection is
found by any chance, please let us know.
●Documents of which pages are missing or irregularly bound will be exchanged. Please inform
the store where you purchased the product.
●Trouble related to the product or system will be dealt with in accordance with the individual
maintenance contract. Please note, however, that we will not take responsibility for
consequential trouble such as discontinuation of operation caused by the product trouble.
● is the registered trademark of SHINKO DENSHI CO., LTD.. Company names and
product names appearing in this document are the trademarks or registered trademarks of the
respective company concerned.

－ii－
Important Notice
・It should be known that this product contains potential danger. And so
please be sure to observe this document when installing, operating or
servicing this product.
・SHINKO DENSHI CO., LTD. will not take any responsibility for any injury or
damage caused by the non-observance of this document or misuse or
unauthorized modification of this product.
●
Potential dangers are increasing in the industrial equipment industries due to the advent
of new materials and processing methods, and speeding up of machines
. It is
impossible to foresee all situations related to these dangers. In addition, there are so
many “impossible” and “don’ts” and so writing all of them in the operation manual is
impossible. Therefore, it is safe to think that what is not written in the
operation manual
“cannot be performed” unless the operation manual positively writes “it is possible.”
When performing installation, operation, maintenance or inspection of this product, not
only observe what is written or indicated in this document or on
the product surface but
also pay adequate consideration to safety measures.
●The copyright of this document is held and reserved by SHINKO DENSHI CO., LTD..
Duplicating or disclosing its drawings and engineering materials without prior approval
of SHINKO DENSHI CO., LTD. in writing is not permitted.
●
For any question or further information concerning this document, please contact the
store where you purchased the product with its model (type name informed.
●Manufacturer: SHINKO DENSHI CO., LTD.
Address: 1-52-1 Itabashi, Itabashi-ku, Tokyo 173-0004 Japan

－iii－
How to use this document
■Symbols used in this document
Understand the meaning of the following symbols and observe the instructions of this document.
Symbols Meaning
Used for high risk point concerning the operations that may lead to death or
severe physical injury to persons if proper precautions are not taken.
Used for warning concerning the operations that may lead to death or severe
physical injury to persons, if proper precautions are not taken.
Used for caution concerning operations that may lead to a light physical
injury to persons or damage of the products/facilities if proper precautions
are not taken.
Used for notation for avoiding from deletion, overwrite of the weighing data or
for accurate weighing and appropriate usage of the equipment.
Used for referenced information which is useful for product operation.
Used for “Prohibition” items
Used for “Mandatory” items requiring positive action
This symbol indicates the operation/specification in related to the verificated
balance for legal metrology.
This product/
The product/The
balance
Refers to the product.
[On/Off] key The name of an operation key located in front of the main unit is
represented in square brackets “[ ]”.
<message> A message on the display is represented in angle brackets “< >”.
<<F1>> “Free key” or “Shortcut” is represented in double angle brackets “<< >>”.
Push the key Signifies pushing lightly an operation key once.
Push the key long Signifies keeping pushing an operation key until the designated indication
appears.

－iv－
Contents
Preface....................................................................................................................i
Important Notice...................................................................................................ii
How to use this document..................................................................................iii
Contents ...............................................................................................................iv
1 Prior to use......................................................................................................1
1-1 Operating precautions................................................................................1
1-2 For more accurate measurement...............................................................1
1-2-1 Precautions related to a specimen and medium liquid ...........................1
1-2-5 Precautions related to the specific gravity measuring kit ........................1
1-3 Check for the articles contained in the box ................................................2
2 Assembling and installation.............................................................................3
3 Procedure for specific gravity measurement .................................................5
3-1 Measuring specific gravity of the solid sample...........................................6
3-1-1 Procedure for measuring the solid specimen .........................................6
3-1-2 Switching the display at solid specific gravity mode ...............................9
3-2 Measuring specific gravity of the liquid sample ......................................10
3-2-1 Procedure for measuring specific gravity of the liquid sample..............10
3-2-2 Switching the display at liquid specific gravity mode ............................14
4 Secifications ....................................................................................................15
5 Print Details......................................................................................................16

－1－
1 Prior to use
In adiition to the operating precaution of the balance body, following precautions shall be taken care for the specific gravity
measurement kit.
1-1 Operating precautions
■Do not use/measure flammable liquids which generate e plosive gases, vapor or
fog.
That may cause explosion or fire. A balance with explosion-proof structure shall be used to handle with
such a flammable liquid.
■Do not install the balance on unstable or vibrating location, do not move the balance
with a water tank set on it, especially when handling with hazardous liquids.
Specific gravity measurement kit is not fixed to the balance, so that improper installation, carrying or
operation may cause spilling of the hazardous liquids and lead to serious accidents.
■Take care not to spill water or liquid in the windshield.
If a large amount of water or liquid is spilled in the windshield, they may enter inside the balance and
cause shortsircuit or failure.
1-2 For more accurate measurement
1-2-1 Precautions related to a specimen and medium liquid
Unsuitable
specimen
→ Specimen that is pneumatic, foamable or solubility cannot be measured accurately
with this product.
Magnetism → Specimens affected by strong magnetism repels diamagnetic liquid, and that lead to
an error of the measuring result.
Foam/bubbles
on the
specimen
→ Foam or bubbles produced on the specimen or the glass weight causes an error of
the measuring result.
If water is used as the medium, add one or two drops of surface-active agent (liquid
detergent for kitchen use . It will effectively prevent air bubbles from adhering to any
measurement object.
Temperature
difference
→ Difference in temperature between the specimen and the medium liquid generates
convection flow within the water tank, causing a measurement error.
Accuracy of
the water
temperature
→ When water is used as the medium, the accuracy of temperature of the water input
into the balance affects accuracy of the measurement.
Check the water temperature as frequently as appropriate.
1-2-5 Precautions related to the specific gravity measuring kit
Undesired
contact with
measurement
pan
→ You should be careful not to leave the thermometer in the water tank. It may hit the
pan submerged in water to result in inaccurate measurements. When water
temperature is to be measured, once remove the water tank from the balance.

－2－
1-3 Check for the articles contained in the bo
The package box contains the following;
If anything missing or broken should be found, please inform the store where you purchased the
product.
① Water tank platform ② Measurement Pan ③ Pan cradle
④ Height adjuster ⑤ Water tank ⑥ Glass weight
⑦
Tweezers ⑧
Thermometer ⑨
Operation manual
空中皿
液中皿
Upper
pan
Underwater
pan

－3－
2 Assembling and installation
1
Remove the weighing pan and pan base of the balance.
2
Attach the height adjuster to the pan cradle when needed.
3
Attach the pan cradle (turn the screw in the centre)
4
Attach the water tank platform.

－4－
5
Put the water tank in the position.
6
Set the measurement pan

－5－
3 Procedure for specific gravity measurement
Specific gravity is measured with “Specific gravity mode”. In the specific gravity mode, the ratio of the
density of a substance to the density of water at its densest (4°C for liquids is calculated.
Following modes for specific gravity measurement are available:
- Solid specific measurement mode: Measure solid sample with water or other medium liquid.
- Liquid specific measurement mode: Measure liquid sample with reference grass weight.
Specific gravity mode is not legal for trade.
(1 The total weight of “Pan cradle”, “Measurement pan” and height adjuster is heavier than the
weighing pan initially attached to the balance.
Therefore, the difference of the weight is deducted as tare value when the balance is used with
this kit, and the maximum capacity to be measured in the balance decreases accordingly.
(2
The diameter of the wire of the Measurement pan may affects the measurement result
especially when volume or specific gravity of the solid sample is small.
Zero-point adjustment and tare-subtraction also can be executed by command input or external
contact input. Please refer to “6 External input/output functions” of “HT/HTR CEN Series
operation manual” or “HT/HTR CE Series operation manual”.

－6－
3-1 Measuring specific gravity of the solid sample
Outline of the procedure
1. Input the water temperature or the specific gravity of the medium liquid.
2. Compensate the buoyancy acting on the underwater part of the measurement pan by tare-
subtraction.
3. Measure the specimen weight in the air.
4. Measure the specimen weight in the water/liquid.
5. The specific gravity of the specimen is displayed.
3-1-1 Procedure for measuring the solid specimen
1
Select the specific gravity mode.
Push [Menu] key, then push [F1]-[F4]
keys to go to <11 MODE>
Push [F4] key to change the setting
value.
Push [F1]/[F2] key to select.
SPGR: specific gravity mode
Push [F4] key to fix.
Push [Menu] key to shift to the specific
gravity mode.
2
Select the measurement mode.
Push [F3]/[F4] key to select the
measurement mode.
SOLID: Solid specific gravity mode
LIQ: Liquid specific gravity mode
3
Select the medium liquid.
Push [F3]/[F4] key to select the medium
liquid.
OTHER:
Liquid other than water having
a known specific gravity value
H20: water
4
Run medium liquid to the water tank and
take the temperature.
Run medium liquid such as water to the
attached water tank.
When water is selected as medium
liquid, take the temperature and record
it.
When other liquid is selected, take the
temperature and look up the specific
gravity at that temperature.
5
Input the specific gravity of the medium
liquid or the temperature of the water.
<OTHER>: Liquid other than water
Numeric value input
Enter the specific gravity of the medium
liquid and push [F4] key to fix.
<H20>: Water
Numeric value input
Enter the temperature of the water and
push [F4] key to fix.

－7－
When the specimen sinks
6
Assemble the specific gravity measurement
kit.
Refer to “2 Assembling and installation”.
7
Measure the specimen weight in the air.
Press [Zero/Tare] key to execute tare
subtraction.
Load the specimen on the upper pan to
measure the weight of the sample in the
air, then push [F4] key to record it.
8
Measure the specimen weight in the
water/liquid.
Put the specimen on the underwater
pan, then push [F4] key to record it.
9
The specific gravity of the specimen (for
the 4°C water is automatically
calculated and displayed.
The result can be output by pressing
[Output] key.

－8－
When the specimen floats
6
Assemble the specific gravity measurement
kit.
Refer to “2 Assembling and installation”.
When the specific gravity of the
specimen is smaller than that of the
medium liquid (the specimen floats , use
the height adjuster.
7
Place a weight on the upper pan and e ecute tare
subtraction.
Place a weight on the upper pan.
Push [Zero/Tare] key to execute tare
subtraction.
8
Measure the specimen weight in the air.
Load the specimen on the upper pan to
measure the weight of the sample in the
air, then push [F4] key to record it.
9
Measure the specimen weight in the
water/liquid.
Put the specimen UNDER the
underwater pan, leaving the weight on
the upper pan. Then push [F4] key to
record it.
10
The specific gravity of the specimen (for
the 4°C water is automatically
calculated and displayed.
The result can be output by pressing
[Output] key.
Be sure that the measurement pan does not come off from the pan cradle.

－9－
3-1-2 Switching the display at solid specific gravity mode
1
Push [F1]-[F4] keys to switch the display.

－10－
3-2 Measuring specific gravity of the liquid sample
Specific gravity of liquid is measured by using the accessory glass weight as a reference sample. In this
measurement procedure, specific gravity of the glass weight is measured before measuring the specific
gravity of liquid. The specific gravity value of the glass weight will be saved once it is measured. So, the
corresponding operation may be skipped in subsequent measurements. You can also use other reference
samples in place of the accessory glass weight. In doing so, you must perform a series of measurement steps
to first measure the specific gravity of the reference sample and then to measure liquid specific gravity.
Subsequently, you can skip the specific gravity measurement for the sample. Note that using another sample
will overwrite the specific gravity value of the glass weight. If you are to use the glass weight again, you must
measure the specific gravity of the glass weight before measuring liquid specific gravity.
3-2-1 Procedure for measuring specific gravity of the liquid sample
1
Select the specific gravity mode.
Push [Menu] key, then push [F1]-[F4]
keys to go to <11 MODE>
Push [F4] key to change the setting
value.
Push [F1]/[F2] key to select.
SPGR: specific gravity mode
Push [F4] key to fix.
Push [Menu] key to shift to the specific
gravity mode.
2
Select the measurement mode.
Push [F3]/[F4] key to select the
measurement mode.
SOLID: Solid specific gravity mode
LIQ: Liquid specific gravity mode
3
Select execution of sampling of reference
weight.
Press the [F3]/[F4] key.
SKIP: Use stored data or input
numerical value by key
operation.
NO: Execute the sampling of the
reference weight

－11－
When <SKIP> is selected:
4
Input the weight of the reference sample
Numeric value input
The weight of the last used reference
sample is displayed.
When new reference sample to be
used, input the weight of the reference
sample.
Press the [F4] key.
5
Input the specific gravity of the reference
sample
Numeric value input
The specific gravity of the last used
reference sample is displayed.
When new reference sample to be
used, input the specific gravity of the
sample.
Press the [F4] key.
<CHANGE LIQUID> is displayed for
several seconds.
6
Run the liquid specimen to the water tank.
7
Assemble the specific gravity measurement kit.
Refer to “2 Assembling and
installation”.
8
Submerge the underwater pan and execute
tare subtraction.
The underwater pan into the liquid
specimen and push [Zero/Tare] key to
execute tare subtraction.
9
Measure the
weight of the reference sample
in the liquid specimen.
Put the reference sample on the pan
submerged in the liquid specimen.
Then push [F4] key to record it.
1
0
The specific gravity of the liquid
specimen (for the 4°C water is
automatically calculated and displayed.
The result can be output by pressing
[Output] key.

－12－
When <NO> is selected:
4
Select medium liquid for measuring the
reference sample.
Push [F3]/[F4] key to select the medium
liquid.
OTHER:
Liquid other than water having
a known specific gravity value
H20: water
5
Run medium liquid to the water tank and
take the temperature.
Run medium liquid such as water to the
attached water tank.
When water is selected as medium
liquid, take the temperature and record
it.
When other liquid is selected, take the
temperature and look up the specific
gravity at that temperature.
6
Input the specific gravity of the medium
liquid or the temperature of the water.
<OTHER>: Liquid other than water
Numeric value input
Enter the specific gravity of the medium
liquid and push [F4] key to fix.
<H20>: Water
Numeric value input
Enter the temperature of the water and
push [F4] key to fix.
7
A
ssemble the specific gravity measurement
kit.
Refer to “2 Assembling and installation”.
8
Measure weight of the reference sample in
the air.
Press [Zero/Tare] key to execute tare
subtraction.
Load the reference sample on the upper
pan to measure the weight of the sample
in the air, then push [F4] key to record it.

－13－
9
Measure weight of the reference sample in
the water/liquid.
Put the reference sample on the
underwater pan, then push [F4] key to
record it.
<CHANGE LIQUID> is displayed for
several seconds.
1
0
Replace the liquid in the tank. Remove the reference sample,
measurement pan and liquid in the tank,
then dry them.
1
1
Run the liquid specimen to the water tank.
1
2
A
ssemble the specific gravity measurement
kit.
Refer to “2 Assembling and installation”.
13
Submerge the underwater pan and execute
tare subtraction.
The underwater pan into the liquid
specimen and push [Zero/Tare] key to
execute tare subtraction.
14
Measure the weight of the reference sample
in the liquid specimen.
Put the reference sample on the pan
submerged in the liquid specimen.
Then push [F4] key to record it.
15
The specific gravity of the liquid
specimen (for the 4°C water is
automatically calculated and displayed.
The result can be output by pressing
[Output] key.

－14－
3-2-2 Switching the display at liquid specific gravity mode
1
Push [F1]-[F4] keys to switch the display.