CR-WL900 Trace Moisture Analyzer

1. Adopts an imported 10.0-inch 1024×600 pixel true-color TFT-LCD large-screen color display. The keyboard uses a humaninductive touch screen. Chinese/English switchable operation interface. The software interface is intuitive, generous, and rich in content. Operation is convenient and flexible, with high detection sensitivity, simple operation, fast testing speed, and good repeatability.
2. The instrument has functions for test result storage, printing, and calculation. The sample measurement process is automatically controlled by the instrument. Stirring and measurement are automatically completed in about 60 seconds, and the measurement result is directly displayed. Fully sealed titration cell avoids contact between reagents and personnel, and also prevents the influence of ambient humidity. It has automatic calculation and historical record printing functions, able to print content such as percentage content, sample number, operator, and test date. Instrument accuracy: ① When water content is less than 10 μg H₂O, measurement error < 2 μg H₂O; ② When water content is between 10 μg and 1000 μg H₂O, measurement error ≤ 2 μg H₂O; ③ When water content is above 1000 μg H₂O, measurement error ≤ 0.2% (excluding sampling error).
3. Core host uses CortexA8 highspeed processor with 1 GHz main frequency. Operating system is Android. It abandons the lowspeed microcontroller without a core or operating system, truly modernizing instrument control and bringing the instrument into a new intelligent era.

Main features:

*Capable of microanalysis of lowcontent samples with high sensitivity.

*Can store 20,000 test results; uses unique alternating balance isolation detection technology for faster, more accurate, and stable balance detection; electrolysis circuit uses advanced PWM pulse width modulation technology, greatly reducing overall power consumption.

*Friendly humanmachine dialogue with touch screenbased humanmachine interactive interface.

*Displays clock (year, month, day, hour, minute, second), with poweroff retention.

*Printer: Embedded thermal printer, 36 characters, Chinese character output; prints quieter, faster, and clearer.

*Program control allows stirring speed adjustment by entering numbers directly from the interface.

*Multiple formula options, simultaneous display of multiple units (μg, mg/L, ppm, %), supports repeated average value testing.

*Chinese/English switchable operating system, supports multiple end point judgment methods, more powerful functions, better stability, and standard equipped with automatic liquid addition/drainage (optional). Historical records can be selectively printed.

*Chinese/English interface switching, Android operating system, can connect to mobile app for remote operation control, realtime synchronization, and upload data to a cloud platform for data query, browsing, analysis, statistics on a computer.

*Equipped with RS232, RS485 serial ports, USB interface, expandable for PC communication.

Technical parameters:

*Display mode: 10.0inch LCD color largescreen touch display

*Measuring range: 0.0001% (1 ppm) to 100%

*Sensitivity threshold: 0.01 μg H₂O

*Accuracy: ±2 μg for 5 μg1 mg, 0.2% for above 1 mg (excluding sampling error)

*Operating environment: temperature 15°C28°C, humidity <65%

*Power supply: AC220V±10% 50Hz±5%

*Power consumption: <60W

*Dimensions: 385×290×280 (mm)

*Weight: approx. 10 kg

Complies with the following standards:
*GB/T7600 – Determination of water content in transformer oils (coulometric method)

*GB6283 – Determination of water content in chemical products (Karl Fischer method, general method)

*SH/T02346 – Determination of water content in light petroleum products (electrometric method)

*SH/T0255 – Determination of water content in additives and lubricating oils containing additives (electrometric method)

*GB/T11133 – Determination of water content in liquid petroleum products (Karl Fischer method)

*GB/T7380 – Determination of water content in surfactants (Karl Fischer method)

*GB10670 – Determination of trace water content in fluorinated methanes for industrial use (Karl Fischer method)

*GB/T606 – Chemical reagents – General method for the determination of water content (Karl Fischer method)

*GB/T8350 – Denatured fuel ethanol

*GB/T8351 – Ethanol gasoline for motor vehicles

*GB/T3776.1 – Determination of water content in pesticide emulsifiers

*GB/T6023 – Determination of trace water content in butadiene for industrial use (Karl Fischer coulometric method)

*GB/T3727 – Determination of trace water in ethylene and propylene for industrial use

*GB/T7376 – Determination of trace water content in fluorinated alkanes for industrial use

*GB/T18619.1 – Determination of water content in natural gas (Karl Fischer − coulometric method)

*GB/T512 – Determination of water content in lubricating greases

*GB/T1600 – Determination of water content in pesticides

*GB/T11146 – Determination of water content in crude oil (Karl Fischer coulometric method)

*GB/T12717 – Test methods for acetates for industrial use

*GB/T5074 – Determination of water content in coking products

*GB/T18826 – 1,1,2tetrafluoroethane (HFC134a) for industrial use

*Complies with technical requirements for Karl Fischer method determination of water content in pharmaceuticals specified in the Chinese Pharmacopoeia

*GB/T260 – Test method for water in petroleum products (distillation method)