Rotational viscometer: ViscoQC

ViscoQC 100 FAQ

A. General

A.1 Which model should I choose for my sample?

ViscoQC 100 - L for low-viscosity samples. Typical samples: solvents, oils, juices, shower gel
ViscoQC 100 - R for medium-viscosity samples. Typical samples: paints, adhesives, dairy products, detergents
ViscoQC 100 - H for high-viscosity samples. Typical samples: pastes, mayonnaise, peanut butter, ointments

A.2 What information is displayed on ViscoQC 100?

ViscoQC 100 displays the following information: Viscosity, Speed, Torque, Temperature (if Pt100 is attached or PTD 80 is connected), Runtime, Spindle and max. Viscosity, Target Time/Torque/Temperature (depends on the mode).

A.3 Which spindle/measuring system should I choose?

It depends on available sample volume and viscosity of the sample. Here are some recommendations:

A.3.1 Sample volume

If large sample volumes (~500 mL) are available, both relative measuring systems (L1-L4 spindle, RH1-RH7 spindle, vane spindles V71-V75) or absolute measuring systems (concentric cylinder or double-gap) can be used. If sample volume is limited (<20 mL), an absolute measuring system (concentric cylinder or double-gap) or a small vane spindle (V74, V75) is required.

A.3.2 Surface area

General rule of thumb for measuring systems: The lower the viscosity, the larger the surface area.

Surface area decreases from L1 to L4
Surface area decreases from RH1 to RH7
Surface area decreases from CC26 to CC12
Surface area decreases from V71 to V74
The largest surface area is provided by the double-gap system. Hence, samples with a viscosity around 1 mPa.s (like water) can be measured with DG26 and ViscoQC 100-L.

A.3.3 Viscosity ranges per torque model

The following tables give you an overview of the theoretical (calculated) viscosity range per measuring system.

L model
Min. and max. viscosity are calculated values for L standard speeds (0.3 rpm to 60 rpm).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
L1	15	20 000
L2	50	100 000
L3	200	400 000
L4	1 000	2 000 000
CC12	20	37 900
CC18	5	11 400
CC26	2	3 800
DG26	1	2 600
CC12/D18	70	100 000
SC4-18	5	10 000
SC4-21	10	15 500
SC4-27	40	78 000

R model
Min. and max. viscosity are calculated values for RH standard speeds (0.5 rpm to 100 rpm, 0.3 rpm as min. for SC4-XY).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
RH1	100	20 000
RH2	100	80 000
RH3	100	200 000
RH4	200	400 000
RH5	400	800 000
RH6	1 000	2 000 000
RH7	4 000	8 000 000
CC12	120	50 000
CC18	40	50 000
CC26	15	24 400
DG26	10	10 000
CC12/D18	440	100 000
SC4-18	30	100 000
SC4-21	50	100 000
SC4-27	250	200 000

H model
Min. and max. viscosity are calculated values for RH standard speeds (0.5 rpm to 100 rpm, 0.3 rpm as min. for SC4-XY).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
RH1	800	160 000
RH2	800	640 000
RH3	800	1 600 000
RH4	1 600	3 200 000
RH5	3 200	6 400 000
RH6	8 000	16 000 000
RH7	32 000	64 000 000
CC12	1 000	50 000
CC18	300	50 000
CC26	100	50 000
DG26	60	10 000
CC12/D18	3 500	100 000
SC4-18	250	50 000
SC4-21	400	100 000
SC4-27	2 000	200 000

A.3.4 Vane spindles

Vane spindles (V71-V75) are available for ViscoQC 100. In general, they can be used to measure paste-like samples (gels, ointments, …) at rotational speeds below 10 rpm.

L model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	Not recommended
V72	104	1 040
V73	500	5 000
V74	5 090	50 900
V75	1 996	19 960

R model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	262	2 620
V72	1 110	11 100
V73	5 330	53 300
V74	54 300	543 000
V75	21 300	213 000

H model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	2 096	20 960
V72	8 880	88 800
V73	42 640	426 400
V74	434 400	4 344 000
V75	170 400	1 704 000

A.4 What is the difference between relative and absolute measuring systems?

Relative measuring systems are designed according to ISO 2555. There is no exactly defined gap (so-called “infinite gap” systems) and therefore the measured viscosity is relative. Relative measuring systems are most frequently used in beakers, such as in a 600 mL (glass) beaker. If something in the setup changes (like beaker size, immersion depth of the spindle, etc.), the viscosity value will also change. Relative measuring systems for ViscoQC 100 are L1-L4 and RH1-RH7. On the other hand, absolute measuring systems (concentric cylinders and double-gap) deliver absolute viscosity values, since they have a defined gap. They are designed according to the standards DIN 53019-1 and ISO 3219. These viscosity values can be compared to any other instrument that measures the absolute viscosity. Absolute measuring systems for ViscoQC 100 are CC12, CC18, CC26, and DG26. A bigger gap than specified in DIN 53019-1 and ISO 3219 is available for CC12/D18, SC4-18, SC4-21, and SC4-27.

A.5 How do I connect/disconnect the spindle?

Every spindle of ViscoQC 100 is equipped with a magnetic coupling. Hence, an easy and fast one-hand removal/attachment is ensured. Keep in mind that the spindles should always be removed sidewards, using a slight angle of around 10° to 45°.

A.6 What are Newtonian, shear-thinning (pseudoplastic), and shear-thickening (dilatant) flow behavior?

In Newtonian samples the viscosity of the sample does not depend on the load that is applied to it. Therefore, if different speeds are applied to a sample, it will always show the same viscosity value. Well-known examples of Newtonian liquids are water and oils. For shear-thinning and shear-thickening samples, the viscosity depends on the load applied to the sample. Therefore, the viscosity value will change with the speed. For shear-thinning samples, the viscosity will decrease as the speed is increased. Typical shear-thinning samples are coatings, adhesives, fruit/vegetable purees, and shampoo.
For shear-thickening samples, the viscosity will increase as the speed is increased. Typical shear-thickening samples are starch solutions or dispersions with a high content of solid mass.

B. Cleaning

C. Maintenance

D. Contact

ViscoQC 300 FAQ

A. General

A.1 Which model should I choose for my sample?

ViscoQC 300 - L for low-viscosity samples. Typical samples: solvents, oils, juices, shower gel
ViscoQC 300 - R for medium-viscosity samples. Typical samples: paints, adhesives, dairy products, detergents
ViscoQC 300 - H for high-viscosity samples. Typical samples: pastes, mayonnaise, peanut butter, ointments

A.2 What information is displayed on ViscoQC 300?

ViscoQC 300 displays the following information: Viscosity, Speed, Torque, Temperature (if Pt100 is attached or PTD 80 is connected), Runtime, Spindle and max. viscosity, Target Time/Torque/Temperature/Viscosity (depends on the mode), kinematic viscosity, density (manual input), shear rate, shear stress, method, sample name, time, and user.

A.3 Which spindle/measuring system should I choose?

It depends on available sample volume and viscosity of the sample. Here are some recommendations:

A.3.1 Sample volume

A.3.2 Surface area

General rule of thumb for measuring systems: The lower the viscosity, the larger the surface area.

Surface area decreases from L1 to L4
Surface area decreases from RH1 to RH7
Surface area decreases from CC26 to CC12
Surface area decreases from V71 to V74
The largest surface area is provided by the double-gap system. Hence, samples with a viscosity around 1 mPa.s (like water) can be measured with DG26 and ViscoQC 300-L.

A.3.3 Viscosity ranges per torque model

The following tables give you an overview of the theoretical (calculated) viscosity range per measuring system.

L model
Min. and max. viscosity are calculated values for L standard speeds (0.3 rpm to 60 rpm).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
L1	15	20 000
L2	50	100 000
L3	200	400 000
L4	1 000	2 000 000
CC12	20	37 900
CC18	5	11 400
CC26	2	3 800
DG26	1	2 600
CC12/D18	70	100 000
SC4-18	5	10 000
SC4-21	10	15 500
SC4-27	40	78 000

R model
Min. and max. viscosity are calculated values for RH standard speeds (0.5 rpm to 100 rpm, 0.3 rpm as min. for SC4-XY).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
RH1	100	20 000
RH2	100	80 000
RH3	100	200 000
RH4	200	400 000
RH5	400	800 000
RH6	1 000	2 000 000
RH7	4 000	8 000 000
CC12	120	50 000
CC18	40	50 000
CC26	15	24 400
DG26	10	10 000
CC12/D18	440	100 000
SC4-18	30	100 000
SC4-21	50	100 000
SC4-27	250	200 000

H model
Min. and max. viscosity are calculated values for RH standard speeds (0.5 rpm to 100 rpm, 0.3 rpm as min. for SC4-XY).

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
RH1	800	160 000
RH2	800	640 000
RH3	800	1 600 000
RH4	1 600	3 200 000
RH5	3 200	6 400 000
RH6	8 000	16 000 000
RH7	32 000	64 000 000
CC12	1 000	50 000
CC18	300	50 000
CC26	100	50 000
DG26	60	10 000
CC12/D18	3 500	100 000
SC4-18	250	50 000
SC4-21	400	100 000
SC4-27	2 000	200 000

A.3.4 Vane spindles

Vane spindles (V71-V75) are available for the ViscoQC series. In general, they can either be used to measure paste-like samples (gels, ointments) at rotational speeds below 10 rpm or, if ViscoQC 300 is upgraded with V-curve, to determine the yield point at rotational speeds below 5 rpm.

L model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	Not recommended
V72	104	1 040
V73	500	5 000
V74	5 090	50 900
V75	1 996	19 960

R model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	262	2 620
V72	1 110	11 100
V73	5 330	53 300
V74	54 300	543 000
V75	21 300	213 000

H model
Min. and max. viscosity are calculated values at 10 rpm.

Spindle	Min. viscosity [mPa.s]	Max. viscosity [mPa.s]
V71	2 096	20 960
V72	8 880	88 800
V73	42 640	426 400
V74	434 400	4 344 000
V75	170 400	1 704 000

A.4 What is the difference between relative and absolute measuring systems?

Relative measuring systems are designed according to ISO 2555. There is no exactly defined gap (so-called “infinite gap” systems) and therefore the measured viscosity is relative. Relative measuring systems are most frequently used in beakers, such as in a 600 mL (glass) beaker. If something in the setup changes (like beaker size, immersion depth of the spindle, etc.), the viscosity value will also change. Relative measuring systems for ViscoQC 300 are L1-L4 and RH1-RH7. On the other hand, absolute measuring systems (concentric cylinders and double-gap) deliver absolute viscosity values, since they have a defined gap. They are designed according to the standards DIN 53019-1 and ISO 3219. These viscosity values can be compared to any other instrument that measures the absolute viscosity. Absolute measuring systems for ViscoQC 300 are CC12, CC18, CC26, and DG26. A bigger gap than specified in DIN 53019-1 and ISO 3219 is available for CC12/D18, SC4-18, SC4-21, and SC4-27.

A.5 How do I connect/disconnect the spindle?

Every spindle of ViscoQC 300 is equipped with a magnetic coupling. Hence, an easy and fast one-hand removal/attachment is ensured. Keep in mind that the spindles should always be removed sidewards, using a slight angle of around 10° to 45°.

A.6 What are Newtonian, shear-thinning (pseudoplastic), and shear-thickening (dilatant) flow behavior?

In Newtonian samples the viscosity of the sample does not depend on the load that is applied to it. Therefore, if different speeds are applied to a sample, it will always show the same viscosity value. Well-known examples of Newtonian liquids are water and oils.
For shear-thinning and shear-thickening samples, the viscosity depends on the load applied to the sample. Therefore, the viscosity value will change with the speed. For shear-thinning samples, the viscosity will decrease as the speed is increased. Typical shear-thinning samples are coatings, adhesives, fruit/vegetable purees, and shampoo.
For shear-thickening samples, the viscosity will increase as the speed is increased. Typical shear-thickening samples are starch solutions or dispersions with a high content of solid mass.

B. ViscoQC 300 and its software packages

B.1 What is included in the ViscoQC 300 basic model?

The ViscoQC 300 basic model already has the functionality of measuring multiple points (Speed Scan, Time Scan; if PTD 80 in use: Temperature Scan). Furthermore, speed or shear rate controlled measurements can be performed. For shear rate control and displaying of the value, a DIN spindle is necessary.
Further functionalities on the stand alone instrument can be added by upgrading it with the software packages V-Curve and/or V-Comply.

B.2 What is included in V-Curve?

V-Curve is available as a 30-day trial on each basic model. Activation is possible any time.
V-Curve has the following software functionalities:

The possibility to see live measurement data in a graph
Programmability: Create up to 50 steps
A yield method to determine the yield stress with vane spindles
Mathematical models (IPC Paste, Power Law, Bingham, Herschel-Bulkley, Casson, NCA/CMA Casson, shear thinning index, thixotropy breakdown coefficient, unique best fit feature functionality) Remark: For mathematic regression models such as Bingham, Herschel-Bulkley, Casson and NCA/CMA Casson DIN spindles are required.

B.3 What is included in V-Comply?

The V-Comply package is delivered with Anton Paar’s unique Pharma Qualification Package and fulfills requirements of GMP 4 Annex 11 & 15, GAMP 5, and 21 CFR Part 11. It includes the following software functionalities:

User management, customizable users/user groups
Audit trail
Electronic signature
Advanced data integrity mode
Increased security functions (date and time stamp, password access and password complexity, restrict use of spindles through Toolmaster™, disable USB memory devices, and more)

B.4 How can I upgrade to V-Curve and/or V-Comply?

To upgrade, simply contact us via live chat or our contact form.
V-Curve is also available on our webshop.

C. Cleaning

D. Maintenance

E. Contact

	ViscoQC 100			ViscoQC 300
	L	R	H	L	R	H
Test	Single point	Single point	Single point	Multi-point	Multi-point	Multi-point
Viscosity range [mPa.s] (depends on the measuring system)	1* to 6M	10** to 40M	60*** to 320M	1* to 6M	10** to 40M	60*** to 320M
Speed [rpm]	0.1 to 200 25 increments: 19 standard speeds plus 6 freely selectable speeds	0.1 to 200 25 increments: 19 standard speeds plus 6 freely selectable speeds	0.1 to 200 25 increments: 19 standard speeds plus 6 freely selectable speeds	0.01 to 250 Speedlist with 18 standard speeds Freely selectable speeds within the speed range	0.01 to 250 Speedlist with 18 standard speeds Freely selectable speeds within the speed range	0.01 to 250 Speedlist with 18 standard speeds Freely selectable speeds within the speed range
Max. spring torque [mNm]	0.0673	0.7187	5.7496	0.0673	0.7187	5.7496
Accuracy	±1.0 % full scale range	±1.0 % full scale range	±1.0 % full scale range	±1.0 % full scale range	±1.0 % full scale range	±1.0 % full scale range
Repeatability	±0.2 %	±0.2 %	±0.2 %	±0.2 %	±0.2 %	±0.2 %

Rotational viscometer:ViscoQC

Key features

Ready to use out of the box

Full traceability for reliable results

Future-proof rotational viscometer

Swiftly at your desired temperature with PTD 80

Highest quality, lowest downtime

Technical specifications

A

B

C

D

E

I

J

P

T

U

Anton Paar Certified Service

Documents

Accessories & Software

Accessory for ViscoQC 100/300: Flexible Cup Holder

Peltier temperature device for ViscoQC 100/300: PTD 80

Software package for ViscoQC 300: V-Curve

Wide-range Peltier temperature device for ViscoQC 300: PTD 175

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ViscoQC 100 FAQ

A.1 Which model should I choose for my sample?

A.2 What information is displayed on ViscoQC 100?

A.3 Which spindle/measuring system should I choose?

A.4 What is the difference between relative and absolute measuring systems?

A.5 How do I connect/disconnect the spindle?

A.6 What are Newtonian, shear-thinning (pseudoplastic), and shear-thickening (dilatant) flow behavior?

B.1 What is recommended for cleaning the measuring systems?

B.2 What is recommended for cleaning the housing of the instrument?

C.1 Can I perform a calibration oil measurement on my own?

C.2 Do I need to check ViscoQC 100 on a regular basis?

D.1 Where can I get accessories or consumables for ViscoQC 100?

D.2 The FAQs were not able to solve my issue. How do I contact Anton Paar?

ViscoQC 300 FAQ

A.1 Which model should I choose for my sample?

A.2 What information is displayed on ViscoQC 300?

A.3 Which spindle/measuring system should I choose?

A.4 What is the difference between relative and absolute measuring systems?

A.5 How do I connect/disconnect the spindle?

A.6 What are Newtonian, shear-thinning (pseudoplastic), and shear-thickening (dilatant) flow behavior?

B.1 What is included in the ViscoQC 300 basic model?

B.2 What is included in V-Curve?

B.3 What is included in V-Comply?

B.4 How can I upgrade to V-Curve and/or V-Comply?

C.1 What is recommended for cleaning the measuring systems?

C.2 What is recommended for cleaning the housing of the instrument?

D.1 Can I perform a calibration oil measurement on my own?

D.2 Do I need to check ViscoQC 300 on a regular basis??

E.1 Where can I get accessories or consumables for ViscoQC 300?

E.2 The FAQs were not able to solve my issue. How do I contact Anton Paar?

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Rotational viscometer:
ViscoQC