AMTAST NDJ-8S User manual

Brand: AMTAST

Model: NDJ-8S

Type: User manual

NDJ-5S/NDJ-8S

SERIES

DIGITAL DISPLAY VISCOMETER

OPERATION MANUAL

NDJ-5S/8S VISCOMETER

PREFACE

NDJ types digital display viscometer is an upgraded

version of our rotary viscosimeter. This instrument adopts the

advanced mechanical design, manufacturing technology and

microcomputer control technology, data acquisition right;

Display with blue backlight, high brightness LED display, data

showed clearly.

This instrument has high sensitivity and reliable test

results, the use of easy to operate, modelling elegant

appearance and other characteristics, is used to measure the

absolute viscosity of Newtonian liquid and apparent viscosity

of non-Newtonian fluid of the ideal instrument, can be widely

used in oil, paints, plastics, medicine, food, paint, detergent

etc, all kinds of fluid viscosity measurement.

The instrument is equipped with optional RS-232,

temperature sensor, printer interface functions. After matching

with the PC cable and installation CD, can according to need

to record all test data; Equipped with temperature sensors can

be measured the temperature of the liquid; Equipped with

micro printer can print test results directly.

THE MAIN TECHNICAL PARAMETERS

Model

NDJ-5S

NDJ-8S

Range

1~100000mPa.s

1～2000000mPa.s

Rotors

#1, #2, #3, #4 (standard),

Optional #0 for below 0.1~10mPa.s

Rotor Speed

6;12;30;60r/min

0.3; 0.6; 1.5; 3; 6; 12;

30; 60r/min

Automatic

selection

Automatically selecting proper rotor and

speed

Stability

reading cursor

block

when vertical cursor block is full, reading

data is in stable display

Measuring

precision

±2% (Newton liquid)

Power supply

AC 100~240V; 50/60Hz

Working

condition

Temperature 5°C to 35°C ，Relatively

Humidity less than 80%

Dimensions:

370×325×280 (mm)

Net Weight:

6.8Kg

MAIN TECHNICAL PARAMETERS

The synchronous motor drives the sensor chip of the

motor with stable speed, and drives the sensor chip of

hairspring, shaft and rotor which connected to it through

hairspring. If there is no resistance of the fluid, the display will

be at "0" position and the two sensor chips will rotate at same

speed. On the opposite, if the rotor is subjected to the viscous

resistance of fluid, there will be a torque at the hairspring.

After it is balanced against the viscous resistance, the

photoelectric conversion device can convert the information of

the relative balancing position between the two sensor chips

into the signals which can be recognized by the computer. At

last the results of the viscosity of the fluid will be displayed

after being processed by the computer.

This instrument adopts microcomputer technology can

easily set range (rotor rotational speed), to digital processing

of sensor detected data, and in clearly showed on the screen

when measuring the set number of rotor, rotational speed, the

viscosity of the liquid being measured value and full scale

percentage, etc.

The instrument standard with 4 kinds of rotors (1, 2, 3, 4).

NDJ-5S four gear speed (6, 12, 30, 60, revolutions per

minute), which composed of 16 kinds of combination, can

measure the determination of the viscosity of the liquid within

the range of values.

NDJ-8S eight gear speed (0.3, 0.6, 1.5, 3, 6, 12, 30, 60,

revolutions per minute), which composed of 32 kinds of

combination, can measure the determination of the viscosity

of the liquid within the range of values.

CONSTRUCTION AND INSTALLATION

I. The structure of the instrument

The structure of the instrument is shown in figure 1.

机头连接杆

CNSHP

微机型数字显示粘度计

产品型号： NDJ-8S

产品编号： 201307152011

出厂日期： 2013年7年15年

年

年年

年年年

年年

RS-232年年年

Figure 1

（1）

Top Bubble Level

（2）

LCD Screen

（3）

protective sheath

（4）

Protection rack for rotor（5）

support stand（6）

operating

panel (7)rotor connector (8)rotor(9)Leveling adjustment screw

II. The installation of the instrument

1. Check the power supply to meet up the instrument

requirements with reliable ground lead

2. Put the instrument on the table without corrosive gaseous

fluid, strong electromagnetic interference and vibration g

NDJ-5S/8S VISCOMETER

Figure 2

（1）elevation adjusting screw（with inner hexagonal wrench）

（2）fixing hole for head of machine (3）faxing knob of

machine（4）fixing nut to column（5）elevation knob （6）

upright column

3. Screw the column into the hole at the rear of the

support stand with the teethed side facing the back of the

support stand. Tighten the nut with wrench to prevent the

column rotating (figure,2)

4. Turn the knob of the elevation clamp and check the

flexibility and self-locking of the elevation clamp. If it is found

to be too loose or too tight, adjust the stop screw on the clamp

with a screwdriver. It should be moved up and down freely, but

a little tight is preferable to prevent the viscometer dropping

down after it is installed.

5. Remove the yellow protective sheath from the shaft

(figure,3)

6. Adjust the leveling screw to keep the instrument level.

Figure 3

（1）Printer interface （2）The installing hole for head of

machine （3）Power switch（4）Yellow protective sheath（5）

PC interface（6）Power socket （7）Temperature sensor

interface （8）socket for fuse （9）The hole for protective rack

OPERATION AND USE OF THE INSTRUMENT

1. the measured liquid, ready to put the measured liquid is

not less than 60 mm in diameter, height not less than 120 mm

beaker or straight cylindrical container.

2. Accurately control the temperature of the liquid to be

tested.

3. On the rotor protection, after carefully adjust the level of

the instrument, check the equipment level of the bubble is

centered, ensure instrument in the level of work state.

4. Reference range table, select the adaptation of rotor

screwing in rotor connecting head (overlooking, clockwise to

mount; counterclockwise to remove).

5. Slowly adjust elevator knob, adjust the rotor in the

measured liquid level, until the surface of the rotor grooves

(center) and h flat. 6. use 0 rotor and low

viscosity fluid test

accessories according to

the following steps (see

figure 4):

(1) Bottom sleeve

(2)Fixing screw to sheath

(3) Connector for rotor

(4) Connecting nut

(5) Number # 0 rotor

(6) Fixing sleeve

(7) Fixing screw to

external sleeve

(8) Red level mark of

liquid

(9) V-block

(10) External measuring

sleeve

figure 4

1) to 0 rotor on the rotor connecting screw rod.

2) fixed socket set into the bottom of the instrument the nose

under the hood, and socket set screw and tight.

3) put outside in test tube (bottom) 20 ~ 25ml of liquid to be

tested.

4) will try sleeve fixed sleeve and outer barrel screw and tight,

tighten the outside must pay attention to try screwing in the

cone end of tube fixed screw barrel within the triangle groove

of the upper (can be observed in the side of the round hole

test tube triangle groove is located at the center of circular

hole).Control the liquid temperature can be tested after being

tested.

5) with bottomless, test tube method basic same as above,

【in addition to the (3) 】, when the outer cylinder and

NDJ-5S/8S VISCOMETER

rotor immersed in liquid with a fixed sleeve the red dot on

the liquid surface mark.

7. Keyboard and display interface description:

1) Instrument keyboard as shown in.

Figure 5

2) open the power switch at the back of the instrument,

into the boot interface, display instrument models:

NDJ-8S

14-02-13 Thur. 09:11:52

W E L C O M E

Figure 6

3) the system Settings

Press the RESET button to enter the system Settings interface,

can communication methods and the system time Settings,

press the up and down key to adjust the location of the cursor

as shown in

SYSTEM

Comnication

Time & Date

Figure7

COMMUNICATION

Thermal Printer

Wrie Printer

Computer

TIME & DATE

Date

Time

-02-13 Thur.

09:12:54

figure 7B

1, communication Settings

Communication when the cursor is in the "Settings" option

on the Settings, click OK button to enter communication

Settings interface, as shown in figure 7 - A set items including

printer, PC communication format, etc., through up and down

keys to move the cursor position, press OK key to set and

automatically return to the interface, press the RESET button

to return to the interface of A directly.

2, time Settings

When the cursor is in the "time setting" option on the

Settings, press OK button to enter the system time Settings

interface as shown in figure 7 - B, the left and right keys to

move the cursor to change the selected item, up and down

keys to change the time according to size, set after press OK to

save these Settings and exit.

When the machine is in the system Settings interface press

the RESET button to return to the standby interface.

PREPARATION

Rotor: 1＃

Speed: 6 RPM

Press“OK”to confirm

Figure 8

NDJ-5S/8S VISCOMETER

WORKING

Rotor:1＃ Speed: 6 RPM

Percent: 0.0 %

Data: 0. mPa.s

Fi gure 8(A)

END

Rotor: 1＃ Speed: 6 RPM

Percent: 0.0 %

Data: 0. mPa.s

Fi gure 8(B)

4, measure

When the machine is in standby interface press OK button

to enter to measure the interface as shown in figure 8: prior to

measurement of rotor, speed Settings.

1) rotor set

Cursor in 1 #, according to the Sunday afternoon or ∨ key

choice for rotor, rotor number is five, namely, 1#, 2#, 3#, 4#

0# and rotor, the default value is 1#.

2) speed setting

> or < button can switch to the rotating speed and position

the cursor in 6 RPM position, as shown in figure 8 - A 0.3 RPM.

By Sunday afternoon or ∨ key can choose the required speed,

NDJ-5S speed is divided into five files: 6 RPM, 12 respectively

r/min, 30 r/min, 60 revolutions per minute, and automatic

transmission. When choose better and speed gear, press OK

key, the rotor to spin, measure instrument began, screen

display as shown in figure 8 - B.

If I do not know the appropriate speed and rotor can

choose automatic transmission after determining the rotor,

press OK key, the instrument will automatically start

3) press the RESET button, measurement instrument will

suspend measurement; Then you can print measurement

results from the need to press the RESET button, if no

keystrokes, meter will automatically stop at the end of the

measurement. When the test is complete, click OK button to

print the current measured values (such as with a printer) or

upload measurement result to the PC. Press the RESET button

to exit the current measurement, to enter the next

measurement. Press the RESET button again to return to the

standby interface

4) before the measurement, the first to estimate the range the

viscosity of the liquid to be measured, then the range in the

table, select the appropriate speed and rotor.

5) when couldn't estimate the measured liquid viscosity,

roughly shall be deemed to be high viscosity. Choose from

small to large rotor (rotor from high to low) and from slow to

fast speed. High viscosity fluid in principle to choose small

rotor (rotor), slow speed; Low viscosity liquids to choose big

rotor (rotor), fast speed. Rotor number engraved on the rotor

on the handle.

6) instrument with overtravel alarm function, if the measured

value is greater than 100%, the measured values show is over.

In order to ensure the accuracy of measurement, the

measurement range percentage readings should be controlled

between 10% ~ 90% is preferred.

7) in any state, press the RESET button, the program will run

from its starting state, the operating interface to the user to

select working condition.

Table

8) range

NDJ-5S

Range table

required to change the number of rotor.

Note: automatic transmission which number to use when

unknown speed rotor, the measurement conditions had better not

use automatic mode.

rotor

speed range

mPa.s

0＃1＃2＃3＃4＃

10 100 500 2000 10000

20 200 1000 4000 20000

50 500 2500 10000 50000

100 1000 5000 20000 100000

r.p.m

NDJ-5S/8S VISCOMETER

NDJ-8S

Range table

Operation methods 1

If choose 1 # rotor, 12 turn, after startup, the screen display

as shown in figure 9:

NDJ-8S

14-02-13 Thur. 09:11:52

W E L C O M E

Figure9

Press OK key, the screen display as shown in figure 10: the

cursor when parked at the 1 # > button,

PREPARATION

Rotor: ＃

Speed: 6 RPM

Press“OK”to confirm

Figure10

The cursor moves to speed 6 r/min, press Sunday

afternoon, again according to 12, as shown in figure 11, and

then press OK key, start measuring instrument.

END

Rotor: 1＃ Speed: 6 RPM

Percent: 0.0 %

Date: 0. mPa.s

Figure11

When the measured value stability after the instrument

will automatically stop the measure, at this time for reading,

printing, such as uploading data operation.

operation method 2

If you don't know the right speed and rotor, can choose

automatic transmission., such as: suppose to choose 4 # rotor

speed choice automatic operation method (same as above),

and then press OK key, the instrument will automatically

search the right speed. The final measurement results show

or display needed to change the number of rotor. Such as

display 3 # rotor, then will put 3 # rotor, then press "OK" to

start measuring instrument, finally shows that the viscosity of

the liquid to be tested.

MATTERS NEEDING ATTENTION

1. The instrument set-up strict inspection before they go

out, can work normally after switch on, the operator before

the operation, please read carefully the instrument

specifications, operating in strict accordance with the

requirements.

2. The instrument must be allowed within the scope of the

power frequency and voltage error measurement, otherwise it

will affect the accuracy of measurement.

3. The loading and unloading of the rotor should be careful

when operating, to connect the instrument of lower head

gently lift up after disassembling, do not force too much, don't

make the rotor lateral force, in order to avoid the damage of

rotor and center pivot. Connection and rotor connected end

face and thread head should be kept clean, otherwise will

influence the correct connection of the rotor and the rotational

stability.

4. Mount after the rotor may not be in the case of no liquid

"rotate", so as to avoid damage to pivot and bearing.

rotor

speed range

mPa.s

0＃1＃2＃3＃4＃

10 100 500 2000 10000

20 200 1000 4000 20000

50 500 2500 10000 50000

100 1000 5000 20000 100000

r.p.m

3 / 2000 10000 40000 200000

1.5 / 4000 20000 80000 400000

0.6 / 10000 50000 200000 1000000

0.3 / 20000 100000 400000 2000000

NDJ-5S/8S VISCOMETER

5. Immediately after each use to clean the rotor, when

cleaning to remove the rotor, bans on rotor on the instrument

cleaning, rotor shall be properly placed in storage box after

cleaning.

6. To lift and transport equipment should be screw on silver

head connected to the rotor protective cap.

Note: instrument electricity before work must be under the

silvery white protective cap screw, in order to prevent damage

to the instrument.

7. Do not get optional disassembly and adjustment

instrument parts and memory data, don't refill oil on its own.

Suspension, emulsion, polymer, and other liquid viscosity is a

lot of "non Newtonian fluid, its apparent viscosity changes with

the shear rate and time, therefore, under different rotor, rotary

speed and time determination, the results are normal. For

non-Newtonian fluid viscosity value of the measured only as a

reference (general non-Newtonian fluid should be prescribed

for determination of the rotor, rotational speed and duration;

or fixed test, determination of environment compared to verify

the condition of its viscosity).

1. In order to ensure the precision of test, please note the

following points:

1) to precisely control the temperature of the liquid to be

tested.

2) will the rotor to a long enough time to dip in the measured

liquid constant temperature at the same time, can make it and

the liquid temperature being measured.

3) ensure the uniformity of liquid.

4) when measuring the center as far as possible put the rotor

in container.

5) to prevent the rotor immersed in liquid bubbles stick

attached beneath the rotor.

6) use protection were determined.

7) ensure the cleanness of the rotor.

8) operating in strict accordance with the operating

instructions.

9) below 15 mPa. The liquid with 0 s rotor.

ATTACHED TO THE RECORD

With packing list

number

Name

designation

quantity

stand

ard

choose

and buy

Digital display

viscometer host

1 only

√

1~4＃rotor

1 set of

√

The power

adapter

1 set of

√

Protect the frame

1 only

√

The base

1 only

√

Rise and fall

pillar

1 set of

√

Instruction for

use

1 this

√

Certificate of

approval

1 piece

√

warranty

1 piece

√

Stay wrench

1 only

√

Allen wrench

head

1 only

√

The following is optional

0＃rotor

1 only

√

RS232cable and

1 set of

√

The temperature

sensor

1 the

root

√

The micro printer

√

Note: design and specifications are change, without prior

notice.

AMTAST NDJ-8S User manual

Brand: AMTAST

Model: NDJ-8S

Type: User manual

Download PDF

report

AMTAST NDJ-8S User manual

AMTAST NDJ-8S User manual

Other documents