Description
WST 200 Wrist Strap Tester
The WST 200 tester quickly and accurately measures the
resistance between an operator, wrist strap and ground cord.
With a test voltage of 9 volts DC, the unit is specially designed
to test without harm to the operator. The WST 200 verifies ESD
protection by indicating three levels of resistance: “HI”, “LO”
and “OK” with LED lights and an audible alarm.
Ohm Metrics
test and measurement products, from
Transforming Technologies, are useful, reliable tools for charac-
terizing and identifying the electrical resistance of materials and
the performance of personal grounding products.
All Ohm Metrics products are designed to support ESDA
Compliance Verification TR53.
All Ohm Metrics products can be calibrated.
All Ohm Metrics test and measurement products are war-
ranted for 1 full year.
Operation
Battery Installation
Remove screws from back cover using a Phillips style
screw driver and detach from monitor. Insert the included 9
volt battery, replace back cover and secure with screws.
Testing
1. While wearing a wrist strap, plug the banana plug of the
cord into the jack located on the front of monitor.
2. Lightly press the metal touch button marked "PUSH ON"
3. Green "OK"LED indicates wrist strap and ground cord as-
semblies are functioning properly.
4. If either Red "FAIL LO" or Yellow "FAIL HI" LED's light and
the audible indicator sound, the operator should check the
wrist strap assembly immediately.
Calibration
Calibration is performed to ensure that the tester is operating
within limits. Test parameters are factory set to pass 800K-
10M, but it’s adjustable to match your own specifications.
Specifications
Product Number
WST200
Wrist Strap Tester
Specifications:
Dimensions/Weight
3.5” H x 2.75” W x 1.25” D
5.4 oz
Test Voltage
Regulated 9volts DC
Temperature:
Operating: 10C to 40C
Storage: -15C to +60C
Relative Humidity
0%to 90% (non- condensing)
Accuracy
+ 5%
Operating Voltage
>6.5 volts to <9 volts
Low battery set at 6.5 volts
Alarm Indications
Level Display
Resistance Alarm
OK
GREEN
<800K No
LO
RED
>800K Yes
HI
RED
>10M Yes
