TOKI TOKI TVB-25L Rotational Viscometer viscosity up to 30000000mP.s
TVB-25L Rotational Viscometer standard M1~ M4 four rotors, measurement viscosity of 30000000mP.s, is an experimental digital Viscometer, TVB-25L with automatic zero correction and deviation correction function, support remote operation.
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Introduction
The combination of "torque balance servo method" and "pivot-free structure" achieves good linearity and reproducibility of data. Automatic range adjustment derived from dynamic range makes the program measurement function more convenient to use.
The "pivot-free structure" that does not use jewel bearings ensures reliable linearity and reproducibility of viscosity values ââover a wide measurement range.
The dynamic range is the biggest charm of TV-25/35 viscometer.
With one viscometer, the viscosity range can be expanded up to 8 times without having to replace the spindle, and the viscosity can be measured continuously.
Features
âTorque balance servo method
Using torque balance and servo method, zero position measurement method is adopted. Even within a wide measuring range, it is not affected.
âMultiple measurement ranges
The wide dynamic range enables multi-weight range measurement. The measurement range can be expanded up to 8 times, and continuous measurement is possible without replacing the rotor.
âNo pivot structure
A flexible hinge system replaces pivots and gems, resulting in a pivot-free structure.
âRotation speed
Increasing at a speed of 0.1 rpm, any rotation speed can be set between 0.1 and 100.0 rpm.
âAutomatic zero point correction and deviation correction
This automatic feature makes instrument calibration easy.
âMeasurement mode memory
Manual mode, automatic stop (time, viscosity) mode, each mode has 5 memory modes.
âAuto stop
The measurement time and viscosity value can be automatically terminated.
âRemote operation
The viscometer can be remotely operated to start and end measurement using external input signals. In addition, the output signal (collector open circuit) can be used to confirm the status of the viscometer by lighting and beeping.
âUpper and lower limit alarms
When the upper and lower limit settings are exceeded, a buzzer will sound.
âPreheating
The measurement can be started automatically after preheating according to the preset preheating time. The time until the measurement starts is displayed as a countdown.
âData exchange
It is interchangeable with conventional viscometer data and complies with JIS and ISO standards.
plan

TOKI TVB-25L Rotational viscometerSpecifications
| LIST | VALUE |
|---|---|
| Rotor specification | M1~M4 |
| Rotor speed | 0.01~100rpm |
| step | 1001 steps, step 0.1rpm |
| Measurement mode | Manual, automatic stop time, automatic stop viscosity |
| Measurement memory | 5 ways per mode |
| Viscosity display | %,mPa.s,Pa.s,kPa.s,cP/P |
| Measurement Accuracy | ±1%F.S |
| Repeatability | ±0.2%F.S |
| Measuring temperature | 10~60℃ |
| Interface | RS232C,USB |
| input signal | Measurement start signal (no Voltage contact) |
| Output signal | Measurement signal, beep signal, measurement end signal (when automatically stopped) Output signal is open collector electrode |
| Operating temperature | 0~40℃ |
| Allowable Relative Humidity | < 90% no condensation |
| Power | AC100- 230V;50-60Hz |
| power consumption | Less than 20W |
| Rotor material | stainless steel |
| Host size | 105*220*320mm |
| Base size | 290*300*450mm |
| Weight | About 8Kg (including bracket) |
| Range file | M、2.5M、5M |
| Torque | 67.37μN·m、168.4μN·m、336.9μN·m |
| Measurement range | 15~6000000mP.s、25~15000000mP.s、50~30000000mP.s |
TOKI TVB-25L Rotational viscometer Packing list
Viscometer X1, certificate of conformity, warranty card, manual
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- ActiveSJ/T 10454-2020
- ActiveHG/T 4443-2012
- ActiveHG/T 3323-2008
- ActiveDIN EN 12092-2002
- ActiveGB/T 24148.4-2009
- ActiveGB/T 12009.3-2009
- ActiveASTM D3794-2022
- ActiveJJG 1002-2005
- AbolishGB/T 11175-2002
- ActiveGB/T 1981.3-2009


TVB-25L





