Shanghai Chengsi - Protective clothing synthetic blood penetration tester - instrument operation method

Protective clothing synthetic blood penetration tester synthetic blood, also known as artificial blood, is the use of the same processing method as hemoglobin, to maintain blood pressure unchanged, in the role of transporting various substances in the albumin put into the heme molecule, made of albumin heme, which is artificial blood
.

There are three main types of artificial blood: synthetic hemoglobin; Artificial red blood cells made with natural hemoglobin; Synthetic fluorocarbons
with oxygen-carrying functions.

Protective clothing synthetic blood penetration tester is mainly suitable for determining the resistance of ordinary fabrics and protective clothing materials to synthetic blood penetration under different test pressures, and can also be used to determine the blood penetration resistance
of other coating materials.

The use of LCD touch control color display, amplifier, A/D converter and other devices have the characteristics of high precision, high resolution, analog microcomputer control interface, simple and convenient operation, greatly improve the test efficiency
.

Stable performance, complete functions, design using multiple protection system (software protection and hardware protection), more reliable and safer
.

Automatic control of pressure, fast pressurization speed, automatic pressure regulation can be achieved after setting the pressure, and the pressure control accuracy is high
.

Applicable standards: GB 19082-2009 Technical requirements for medical disposable protective clothing Anti-synthetic blood penetration test method Instrument features: 1, the use of pressurized media: dry and clean compressed air
.

2.
The special stainless steel penetration test cell firmly clamped the specimen to prevent the synthetic blood from splashing
around.

3, square metal blocking network: open space ≥ 50%; Bend at 20kPa ≤5mm
.

4.
Digital display timer, the accuracy is ±1s
.

5.
Equipped with a clamp
that generates 13.
5N·m torque.

Operation method: 1, after opening the box, first insert the other end of the φ8 air pipe on the air compressor end outlet into the nozzle on the right side of the box filter pressure reducing valve facing the rear side of the instrument (all the end of the trachea must be trimmed and smooth, otherwise it is easy to leak), and the pipe should be pushed into the nozzle with force until it cannot be pushed
.

2, first close the air compressor valve switch, the air compressor connected to the power supply, wait for the air compressor to reach the predetermined pressure (not less than 0.
5MPa) open the air compressor valve switch, with the right hand to pull up the right side of the instrument box filter pressure reducing valve upper end of the knob, according to the knob "+" increase, "-" reduce the law to adjust the pressure of the pressure gauge air source, adjust the while the eyes look at the pressure gauge at the "pressure regulation" on the instrument panel, when the pressure reaches 0.
2MPa, You can press the adjustment knob to lock the pressure of the pressure gauge air source inlet
.

3.
Assemble the test cell in the following ways: a.
Place the test tank horizontally on the test bench, and place the white PTFE gasket on the test cell; b.
Place the normal outer surface of the cut protective clothing specimen on the PTFE pad towards the test cell; c.
Put an asbestos gasket, a blocking screen, and another asbestos gasket on the test tank in turn, and then put the flange cover and transparent cover, and put a Φ16 stainless steel flat pad at each of the four screws, and tighten the penetration test tank with a nut; d.
Install the M16 socket head
.

Open the black perforated locking knob at the tail of the torque wrench counterclockwise, and then adjust the torque wrench knurling screw clockwise, so that when its upper edge is just flush with the 13N·m scale line on the graduated screw, the 0 tick line on the knurled screw coincides with the vertical line on the graduated screw, at which point the wrench torque is 13N·m, and then twist a small grid clockwise so that the 0.
5 tick line on the knurled screw coincides with the vertical line on the graduated screw, that is, 13.
5N· m, then clockwise tighten the tail lock twist to lock
the torque.