BENEFITS AND FEATURES
Affordability & Reasonability priced
Ensure wrist strap in good working condition
Light weight
Reliable & effective
User friendly
SPECIFICATION
WRIST BAND : Elastic adjustable and with conductive filament throughout the entire band length to ensure position skin contact and integrity of grounding. Conductive filament is made up of the conductive wrist strap of 20mm width 32 treat of acrye texture yarn.
COILDED CORD : PU(Polyurethene) cable. Coil cord 6ft, 8ft, 9ft,10ft, 12ft or 15ft
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. Fixed stainless steel swing copper alloy.
FEMALE SNAP : 10mm / 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 |
2.0kg |
|
2 |
2.1kg |
|
3 |
1.6kg |
|
4 |
1.2kg |
|
5 |
2.0kg |
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 |
0.972 |
|
2 |
0.968 |
|
3 |
0.978 |
|
4 |
0.970 |
|
5 |
1.003 |
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 |
150mm |
150mm |
0 |
|
2 |
150mm |
152mm |
0.3 |
|
3 |
140mm |
142mm |
0.3 |
|
4 |
147mm |
147mm |
0 |
BENDING TEST ON STRAIN RELIEF
a. Bending arc = 120deg
b. Speed = 33 operation per minute
c. Load = 500gm
|
Test No |
No. of time Loss Electrical Continuity |
|
10 |
400 532 |
|
11 |
527 267 |
|
12 |
411 754 |
|
13 |
500 789 |
|
14 |
422 773 |
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 |
