Stalwart

Features
Specifications
Literature

Features

10-inch TFT Android touch screen

The user-friendly human-computer interaction design, is easy to operate, can flexibly click the parameters to be

set and changed, and can swipe left and right to view rich data content and improve work efficiency.

Modular menu list, which can quickly and accurately enter each sub-interface,ensuring efficient navigation and

seamless operation.

During sample test, the instrument displays real-time test curves, parameters, and analysis results, allowing

users to monitor the entire titration process in real-time.

Supports multiple result units: mg%, ppm, H2O, mL, mg/mL, mg / g, etc. Equipped with a data retrieval function

for quick access to historical records.

V-T and E-T can be switched for analysis experiments at any time, and the curve can be enlarged or reduced

manually. 8G storage space can be used to store experimental methods, data, traceability documents and others.

Sealed and Secure reagent management system

Automatic replacement of the reagent can be realized without opening the reaction cup, preventing the moisture

in the air from entering the titer cup. After replacing the reagent, the balance time is short to reduce the contact

between the operator and the toxic reagent.

With various specifications of injection ports to meet the injection methods of different samples.

With the waste liquid overflow prevention device to prevent the waste liquid bottle from overflowing when full.

Comes standard with a magnetic stirrer, supporting both manual and automatic stirring for enhanced titration

efficiency.

Plug-in reagent bottle anti-fall rack, which can be freely combined and compatible with 250mL, 500mL, and

1000mL reagent bottles.

Dynamic continuous liquid addition technology

The liquid addition speed is automatically adjustable between 0.02 μL/s and 0.1 mL/s, ensuring precise and

flexible reagent dosing. With a drift resolution of up to 0.1 μg/min, the system utilizes a unique PID algorithm to

significantly enhance testing accuracy and repeatability while reducing overall experiment time.

Built-in multiple methods and one-click quick operation

The instrument is pre-set with multiple analysis methods, such as titration degree, blank value, water content,

etc., which can be quickly started with just one click, without the need to manually start water content

measurement. After the sample is added, the equipment can automatically sense the sample and start the

measurement. Additionally, users can customize analysis parameters based on specific sample requirements for

greater flexibility.

Multiple end-point judgment logics

It has four judgment logics: relative drift stop, absolute drift stop, delay judgment, and maximum time stop. These

flexible criteria enable precise and reliable testing, even for complex or challenging samples, ensuring accurate

analysis results.

Compliance with FDA 21 CFR Part 11

Equipped with audit trial, all effective operations performed on the instrument are recorded in the backend.

It has four levels of permission management function, and each level can also customize and select

corresponding permissions.

It has functions such as electronic signature and data tamper proof output, ensuring secure and verifiable data

integrity.

Equipped with password security settings, it can set a password expiration date. After expiration, it can be

required to change the password forcibly before continuing to use the instrument. It can also set the password

complexity and password aging time.

Equipped with screen saver function, it can set a time to lock the screen, and the instrument background can still

work when the screen is locked.

Multiple interfaces such as WiFi, USB, RS232, BNC, etc., can be connected to a WiFi printer for remote printing,

and can also be connected to a mouse and keyboard to operate the instrument. It supports WiFi printing and

RS232 connection printing.

Specifications

Assay method	Volumetric method
Water content measurement range	0.001%~100%
Recommended water content measurement range	0.1% -100%
Polarization current range	1~24μA
Polarization current resolution	0.01μA
Polarization current error range	0.05μA
Voltage range	0-1999mV
Voltage resolution	0.1mV
Voltage error range	±0.2mV
Burette driver	Stepper motor
Burette resolution	1/150000
Minimum liquid volume for burette	0.001mL
Error range of burette	1mL, ±0.01mL 5mL, ±0.01mL 10mL, ±0.02mL
Number of methods	150
Export format	Excel, PDF
Display mode	10-inch TFT, capacitive screen
The map shows that	E-T, V-T
Drift correction function	Manual, automatic, and closed
Compliance with the FDA 21 CFR Part 11	Yes
Audit trial	Yes
Authority management	Four-level authority (super administrator, supervisor, operator, IT)
Subscriber number	30
Storage space	8G
Sample cell	120mL
Communication interface	WiFi, USB, Ethernet, RS232, and BNC
Stirring method	Magnetic stirring
Available printer	Wireless laser printer, wired micro-printer
Power	100-240V ±10%, 50-60Hz

Literature

STV-930K.pdf

Features
Specifications
Literature