BENEFITS AND FEATURES
Affordability & Reasonability priced
Ensure wrist strap in good working condition
Light weight
Reliable & effective
User friendly
SPECIFICATION
WRIST BAND : Conductive Strap sew onto the Velcro Band
COILDED CORD : PU(Polyurethene) cable. Straight cord 8ft
OUTER DIAMETER : 2.5 +/-0.1 MM
RESISTOR : 1 Meg Ohm ¼ watt (Crimped and soldered on top of the socket) +/-2%
INSULATION : Polyurethene
BANANA PLUG/SNAP BASE HOUSING : Moulded with strain relief and cord restrain
FEMALE SNAP : 4mm
PROCEDURE
TESTING
PULL FORCE TEST
Use the push-pull gauge pull the button from wrist strap. Pull force require to remove shown on the gauge as below :
|
Test No. |
Force |
|
1 |
1.9 kg |
|
2 |
2.0kg |
|
3 |
2.1kg |
|
4 |
1.5kg |
|
5 |
1.5kg |
Required Spec : 1lb - 5lb (0.45 – 2.25kg)
CONDUCTIVITY TEST
Connect the both ends of the cable to the multimeter. Reading shown as below :
|
Test No. |
Resistance(M Ohm) |
|
1 |
0.983 |
|
2 |
0.999 |
|
3 |
1.003 |
|
4 |
1.000 |
|
5 |
0.995 |
Required Spec : 1 M Ohm
STRETCH TEST
a. Speed 30 times per minute
b. 10 000 times stretching
c. Stretch length : 5 times longer than test piece
|
Test No. |
Close coil length |
% Ratio Change |
|
|
Before |
After |
||
|
1 |
280mm |
280mm |
0 |
|
2 |
270mm |
272mm |
0.3 |
|
3 |
275mm |
277mm |
0.3 |
|
4 |
277mm |
280mm |
0 |
BUTTON ROTATE TEST
a. Button rotate 360 deg on wrist strap
b. Direction clock wise anti-clock wise
|
Test No. |
Rotate arc 360 deg |
|
1 |
Pass |
|
2 |
Pass |
|
3 |
Pass |
|
4 |
Pass |
|
5 |
Pass |
