1. Product overview

   apsl801 automatic piston pressure gauge is a product developed by our company, which automatically loads weights and pressurizes. In the verification process, wear prevention can be achieved at any time to ensure that the maximum error of the piston system in a verification cycle does not exceed the allowable error. The system includes the functions of full-automatic pressure verification platform: it can automatically verify pressure transmitters, digital pressure gauges, precision pressure gauges, etc., send 24V power supply, and has Hart function, measure real-time pressure, input current, input voltage, piston position, weight rotation speed, piston head temperature, etc., and automatically set the verification points. The verification speed is fast, and it takes only about 5 minutes to verify the two pressure transmitters.

2. Function

Automatically verify the pressure transmitter, automatically record the verification results, and automatically print the verification report;

Automatic verification of precision digital pressure gauge, automatic recording of verification results, automatic printing of verification report;

Fully automatic verification of pressure indicator, automatic calculation of error, automatic recording of verification results, automatic printing of verification report.

With the kilogram weight, the piston pressure gauge can be automatically verified.

3. Related patents

two hundred and one billion eight hundred and ten million five hundred and sixty-seven thousand four hundred and eight point five

two hundred and one billion eight hundred and twenty million eight hundred and fifty-eight thousand nine hundred and twenty-nine point one

two hundred and one billion nine hundred and twenty million four hundred and sixty-two thousand two hundred and seventy-five point five

two hundred and one billion nine hundred and ten million two hundred and seventy-six thousand two hundred and ninety-seven point seven

4. Technical indicators

Measurement range and resolution:

(4-640)MPa：2MPa

(4-500)MPa：2MPa

(2-500)MPa：2MPa

(2-250)MPa：1MPa

(2-160)MPa：0.5MPa，

(1-160)MPa：0.5MPa，

(2-100)MPa：1MPa，

(1-100)MPa：0.5MPa，

(1-60)MPa：0.1MPa，

(0.1-6)MPa：0.05MPa，

Accuracy:

pressure: grade 0.005, 0.01, 0.02, 0.05.

current: (0 ~ 22) MA, level 0.02.

voltage: (0 ~ 5.5) V, level 0.02.

other:

24V power output function.

Weight material: non magnetic stainless steel.

Material of piston rod and cylinder: tungsten carbide.

Working medium: mixture of sebacate diester, kerosene and transformer oil.

Pressure interface: two m20x1.5 quick connectors.

Weight: 50kg without weight.

Chassis size: 526*459*215* (width * depth * height)

60MPa weight support height (252-329) mm.

It has 2 electric quantity measurement channels to facilitate the verification of pressure transmitter.

It can be connected with tmms-2000 software to automatically print the verification report.

You can query the verification results on the touch screen or export the verification results with a USB flash disk.

5. Performance characteristics

Fully automatic weight loading

All weights rotate synchronously, and there is no wear during weight loading

The piston rotates at its limit position, and the piston head is free of wear under any working condition

Fully automatic verification of pressure transmitter and digital pressure gauge

Built in special pressure source, automatic pressurization

Built in pressure, current, voltage and temperature sensors

Built in piston position and speed measurement

24V power transmission

Conform to the national metrological verification regulations of jjg59-2007 piston pressure gauge and jjg99-2006 weights.

Full automatic weight addition and subtraction: the weight not placed on the hanging blue rotates synchronously with the weight placed on the hanging blue. The weight is loaded at the synchronous speed. The weight loading process has no wear, good stability and fast pressurization speed.

Wear free anti break rod piston system is adopted, rolling mode is adopted at the limit position, and the piston disc is free of wear.

The full-automatic pressure source dedicated to the piston is used for full-automatic pressurization, which has fast pressurization speed and fast stability speed.

Digital terminal monitoring parameters: touch screen operation, which displays information such as ambient atmospheric pressure, ambient temperature, ambient humidity, current pressure, piston position, piston temperature, piston speed and weight combination;

Correction of pressure value: software automatically corrects parameters such as liquid level height difference, piston system deformation, gravity acceleration, piston temperature, etc;

The output oil volume is large, which can be multiplexed, and 18 sensors can be verified.

Function: automatic verification of pressure transmitter, digital pressure gauge and pressure gauge. It has the function of sewage discharge.

If the kilogram weight is used, the piston pressure gauge can be verified automatically. When verifying the pressure instrument in MPA unit such as pressure transmitter, it can be converted into MPa unit display.

6. Model selection description