BMC-B1 Brief Procedure Falling Dart Impact Tester

1. Environmental Examination

1.1 Lab Condition, Temperature 232C , Humidity 5010%RH.The worktable must be steady, unshakable.

There shouldn’t be wind and articles which are combustible or explosive.

1.2 The power must be single-phase AC 220V+/-10%, 50Hz+/-5%, and the instant fluctuation of voltage should

be within 3V and connected to earth reliably. “N”(Naught) and “E”(Earth) cannot be misused and

connected. Avoid using high-power equipment in the same line. This instrument should not be operated in

the circumstance of vibration or interference by intense electromagnetic wave.

2. Connection of gas and electric circuits

2.1 Connect mainframe and air compressor or gas tank with PU pipe (φ6, φ8). The output pressure of gas

source is between 0.6MPa-0.8MPa.

2.2 Connect the mainframe and power supply with power cord.

3. Instrument Installation

3.1 Unpack the instrument and check if the accessories are accordant with packing list.

3.2 Place the instrument in a suitable position. Loosen off the two screws fixing control box with attached Allen

wrench (Fig.1). Remove the black top cover located on the top of bracket. (Fig. 2), lift up the control box

along the rail and locate it in the right rail of instrument (Fig. 3) with a proper height and fix it with the two

screws again. Avoid damaging the wire during operation.

Fig.1 Fig.2 Fig.3

3.3 Insert the two control wires into the ports located on the bottom of control box.

3.4 Connect the two attached footswitches to the ports located on the base of instrument. Connect the one for

“Clamp/Open”the specimen to the left side of instrument, and the other one for “Test”to the right side of

instrument.

4. Sample

Select smooth samples which should contain no contamination, creases and pinholes. The specimen

should be big enough to be clamped between the cylinders. Cut at least 30 pieces of samples.

5. Test procedure

5.1 Level the instrument firstly with attached horizontal adjustment elements. (one end of the elements is cone,

Screw

Screw

Top

cover

Lift up

the

control

box from

the rail.

Fix the

control box

in this rail.

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BMC-B1

Brief Procedure Falling Dart Impact Tester

the other end is a columned iron stick. They are connected with a thread.) Then insert the level pole with

cone into the hole on the downside of bracket, press “EM”to catch up the level pole, later put the level block

on the inner hole of the upper half of clamp. Adjust horizontal adjustment elements to make the cusp of the

cone point to the intersection of

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