Whiteness and chromaticity tester

Whiteness and chromaticity tester/Colorimeter/Whiteness Colorimeter Model: DP-A

DP-AWhiteness and chromaticity testerIt is used to measure the whiteness, yellowness, color, and color difference of objects, as well as the opacity, transparency, light scattering coefficient, light absorption coefficient, and ink absorption value of paper. Widely used in industries such as papermaking, printing, ceramics, chemical industry, textile printing and dyeing, building materials, grain, salt production, etc.

■ Technical parameters

Static strain tester/Static strain gauge model: DP-JT

Number of measurement points: 10 points.
Range: 0 to ± 30000 μ ε.
Resolution: 0.1 μ ε.
Bounce: ± 0.1 μ ε
Measurement error: ± 0.01% FS ± 0.5 μ ε.
Balance range: 0 to ± 20000 μ ε.
Strain resistance: 60-1000 Ω.
Temperature drift: After preheating for 20 minutes, 1 μ ε/24Hour.
Bridge forms: full bridge, half bridge, 1/4 bridge (common compensation), three wire 1/4 bridge strain gauge self compensation, two wire 1/4 bridge strain gauge self compensation, quarter bridge does not use short connectors, eliminating the influence of thermoelectric potential; Bridge road mixed setting.
Wiring terminal: angled plug type, convenient for wiring; The torque of the screw is three times that of a conventional screw (2N • m), making it less prone to slipping teeth; Crocodile patterned gasket, easy to fasten; Equipped with welding points, suitable for long-term measurement; Compatible with 3mm and 4mm standard plug insertion.
Bridge voltage supply: DC 2V, pulse bridge voltage testing can be selected to solve the problem of temperature drift during long-term testing.
Three wire strain gauges: Supports self compensation of three wire strain gauges.
Other functions: Each measuring point can freely select measurement signals such as stress-strain, force, displacement, etc; Power outage reconnection, computer working status, instrument automatically saves parameter settings, and automatically connects and disconnects to continue data collection when there is an incoming call.
System cascading: The system is connected through Ethernet cables and can connect up to 99 strain gauges.
Power supply: AC 160-240V;
B Direct current DC 9-72V.
Collection speed: Collection can be set.
Parameter settings: All parameters are set on the computer.
Sampling rate: Collect all 10 strain values in 1 second.
Working temperature: -30~70 ℃.
Working humidity: 8-90% RHNC.
Dynamic testing: Choose any one point from 10 points as the dynamic data acquisition point. In the system cascade, up to 30 points can be selected simultaneously as the dynamic testing point. The sampling frequencies are 200Hz, 100Hz, 50Hz, 20Hz, 10Hz, 5Hz, 2Hz, and 1Hz.

Total suspended particulate sampler model: DP-120

Purpose:

This instrument is used by environmental monitoring departments to collect samples of total suspended particulate matter (TSP) in the atmosphere.

Use filter membrane weighing method to capture particulate matter in the ambient atmosphere.
Main performance indicators requirements for the instrument
Sampling flow adjustment range: 80 L/min to 130 L/min
Accuracy: ± 2.5%
Flow stability: At 100L/min, when the voltage fluctuates between 198V and 242V, the resistance changes between 3-85kPa, and the relative error of flow is less than 5%;
Timing accuracy: 1 ‰/24h
Delayed startup: adjustable within 23:59;
Timing: adjustable within 99:59;
Filter paper size: 90mm

UV radiation resistance testing machine/UV testing chamber/hollow glass UV radiation resistance testing chamber Model: DP-ZWFZ

Main technical parameters

Diamond Magnetic Susceptibility Analyzer/Magnetic Susceptibility Analyzer/Magnetic Susceptibility Analyzer Model: DP-2

1Main purpose:
Used to measure the magnetic susceptibility of weak magnetic granular materials such as diamond and CBN.

2、 Main technical indicators:
Sensitivity: 0.1 × 10-5SI
Measurement range: 0.1~9.999 10-5SI
Measurement error: ≤ (± 1% X ± 0.1) 10-5SI X - Magnetic susceptibility of the tested sample
Repeatability: ≤ (± 1% X ± 0.1) 10-5SI X - Magnetic susceptibility of the tested sample