DDBJ-350F Technical Parameters

model		DDBJ-350F
Instrument level		1.0 level
Measurement parameters		conductivity、resistivity、TDS、salinity value、temperature
conductivity	Range	0.000μS/cm～1000mS/cm
	Minimum resolution	0.001μS/cm，Automatic switching according to the range
	Electronic unit reference error	±1.0% FS
resistivity	Range	5.00Ω・cm～20.00MΩ・cm
	Minimum resolution	0.01Ω・cm，Automatic switching according to the range
	Electronic unit reference error	±1.0% FS
TDS	Range	0.000mg/L～300g/L
	Minimum resolution	0.001mg/L，Automatic switching according to the range
	Electronic unit reference error	±1.0% FS
salinity value	Range	(0.00～8.00)%
	Minimum resolution	0.01%
	Electronic unit reference error	±0.2%
temperature	Range	(-5.0～110.0)℃/(23.0-230.0)℉
	Minimum resolution	0.1℃/0.1℉
	Electronic unit reference error	±0.2℃
power supply		Rechargeable lithium battery, power adapter (Input: AC100~240V, Output: DC5V)
size（mm），weight（kg）		90×255×40，0.5

Main features:

• Adopts a high-definition color LCD touch screen with clear display
• Selectable temperature units: ℃ and ℉
• Reference temperature can be selected as 20℃ or 25℃
• Supports functions such as power-on self-diagnosis, automatic shutdown, power-off protection, and factory reset
• Supports firmware upgrade function, allowing function expansion and personalized requirements
• Supports IP65 protection rating
• Standard configuration includes composite conductivity electrode, electrode hanger, silicone protective cover, wristband, portable carrying case, and calibration solution
• Intelligent endpoint judgment, supporting automatic reading, timed reading, fixed-interval reading, and manual reading
• Supports automatic / manual temperature compensation
• Automatically identifies 4 types of GB conductivity standard solutions, supporting 1-3 point conductivity electrode calibration
• Supports multiple conductivity compensation methods such as no compensation, linear compensation, and pure water compensation
• Supports automatic frequency switching, and the matching electrode can cover the measurement range from 0.055μS/cm to the full range
• Supports data storage (1000 sets each), viewing, deletion, transmission, and printing
• Compliant with GLP to achieve data traceability
• Supports connecting to a standard RS-232 serial port printer to print measurement results, with selectable printing formats
• Equipped with a USB interface, which can connect to a PC through dedicated communication software to realize data transmission
• Powered by a large-capacity lithium battery, supporting charging via PC and mobile power supply
• Has battery undervoltage reminder function and charging status reminder function
• Supports backlight adjustment