久久久久久久久一区二区三区,国内一级一级毛片a免费久久久久久免费视频,久久久橹橹橹久久久久高清,久久99精品久久久大学生

The overall accuracy of the machine is better than 0.01%;

The display data, flow, speed, accumulative amount, load, time can be set to the same screen display built-in multifunctional regulator, can be directly in the instrument internal PID adjustment; Guided menu operation, the instrument has self-diagnosis, alarm prompt, pulse output, manual/automatic null balance and zero automatic tracking functions, and can realize the simulation or physical test error automatic correction;

With high and low belt speed alarm delay output and feed rate control deviation delay alarm output function; It has the output function of solid state relay with cumulative tonnage pulse signal, 0.01T, 0.1t optional;

With high and low limit alarm, fault self-diagnosis function

Test error can be selected as percentage or project value display

The system has the function of cumulative pulse output;

With a very reliable power failure protection of internal data function; Multiple isolation interfaces, extensible to achieve two-way communication (RS232/485), print output, current (flow 4~20mA) output, frequency output and other functions of data storage, battery to keep data up to 10 years;

Metal plate spray shell, waterproof, dust-proof, strong magnetic field interference.

The material is stainless steel, dustproof, stable performance, accuracy is better than 0.3%. , protection class is IP68, with overload protection device. Specific parameters are as follows:

Nonlinear: less than 0.03% of rated output

Repeatability: less than 0.03% of rated output

Lag: less than 0.03% of rated output

Temperature sensitivity: 0.0003C at zero

Excitation voltage: 10VDC provided by weighing control instrument

The above parameters finally meet the requirements of NTEP 1:500 class LSigle Cell error required by American metrological organization

With the speed measurement rolling simple using soft connection, real reflection belt speed measurement, accurate counting, not by repeated start and frequency conversion of high and low speed, even in mechanical vibration.

Self-excited vibration and electrical noise can also remain stable.

Accuracy: better than 0.025%;

Dot matrix Chinese fluorescent display;

Rolling, drop-down menu mode;

Display instantaneous flow, cumulative weight, overflow alarm state;

Can display the original parameter value, new input parameter value, operation state prompt: can display zero value, tare value, net weight value, A /D conversion digital quantity, speed sensor pulse number;

32-bit microprocessor with non-volatile memory EPROM. The calibration data entered by the keyboard is stored in a CMOSRAM with a backup battery for ten years.

Alarm and control function: with sound and light alarm function and output control function: touch key input, the input status and prompt can be displayed by dot matrix digital fluorescent screen;

Analog signal input: 0~20mV and 0~30mV;

Two analog current output: one 4~20mA instantaneous flow output, one 4~20mA control current output;

Communication interface: RS-232 /RS-485;

P.I.D control

Ratio: 5 to 500% ratio band

Integral: 0.01-10min

Differential: 0.01-10min

P.E.I.C. (Periodic Error integration control)

Integration: 0.01-10min

Relay: 1-100S

Control loop: Two separate control loops

Control the amount of feed

Other devices can be controlled