TB-9012 Page 1 of 3 © 2015 DESCO INDUSTRIES, INC.
Employee Owned
SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com
724VK2 Verication Tester
Operation Instructions
Description
The SCS 724VK2 Verification Tester is used to
perform periodic testing of the SCS 724 Workstation
Monitor. The Verification Tester allows the customer
to perform NIST traceable calibration verifying that the
724 Workstation Monitor is operating within tolerances.
Using the 724VK2 takes only a few minutes and is
designed to be used on the shop floor at the workstation
to virtually eliminate downtime.
Frequency of recalibration should be based on the
critical nature of those ESD sensitive items handled and
the risk of failure for the ESD protective equipment and
materials. In general, SCS recommends that calibration
be performed annually.
June 2015
The SCS 724VK2 Verification Tester can be used with
the following items:
Item Description
724 Workstation Monitor
724 W/O-PS Workstation Monitor, without Power
Adapter
724K-WM10 Workstation Monitor Kit
724K-WM11 Workstation Monitor Kit
Packaging
1 Verification Tester
1 Certificate of Calibration
Operation
Test Voltage 9 Volts and Resistance Selection 10
Megohms
Set the 724 Workstation Monitor’s test voltage to 9 volts
and its resistance limit to 10 Megohms.
1. Insert the Verification Tester’s stereo plug into the
monitor’s remote jack #1.
2. Select “1.5M LOW” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate, and the yellow L LED should
flash. The audible alarm should not sound.
3. Select “1.5M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
4. Select “10M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
5. Select “10M HIGH” with the Verification Tester’s
rotary switch. The monitor’s red H LED should
illuminate, and the audible alarm should sound
continuously.
6. Repeat steps 1-5 for jack #2 on the remote. The
audible alarm will chirp when jack #2 fails high.
Made in the
United States of America
USER GUIDE TB-9012
Figure 1. SCS 724VK2 Verication Tester
TB-9012 Page 2 of 3 © 2015 DESCO INDUSTRIES, INC.
Employee Owned
SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com
Test Voltage 9 Volts and Resistance Selection 35
Megohms
Set the 724 Workstation Monitor’s test voltage to 9 volts
and its resistance limit to 35 Megohms.
1. Insert the Verification Tester’s stereo plug into the
monitor’s remote jack #1.
2. Select “1.5M LOW” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate, and the yellow L LED should
flash. The audible alarm should not sound.
3. Select “1.5M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
4. Select “35M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
5. Select “35M HIGH” with the Verification Tester’s
rotary switch. The monitor’s red H LED should
illuminate, and the audible alarm should sound
continuously.
6. Repeat steps 1-5 for jack #2 on the remote. The
audible alarm will chirp when jack #2 fails high.
Test Voltage 16 Volts and Resistance Selection 10
Megohms
Set the 724 Workstation Monitor’s test voltage to 16
volts and its resistance limit to 10 Megohms.
1. Insert the Verification Tester’s stereo plug into the
monitor’s remote jack #1.
2. Select “1.5M LOW” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate, and the yellow L LED should
flash. The audible alarm should not sound.
3. Select “1.5M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
4. Select “10M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
5. Select “10M HIGH” with the Verification Tester’s
rotary switch. The monitor’s red H LED should
illuminate, and the audible alarm should sound
continuously.
6. Repeat steps 1-5 for jack #2 on the remote. The
audible alarm will chirp when jack #2 fails high.
Test Voltage 16 Volts and Resistance Selection 35
Megohms
Set the 724 Workstation Monitor’s test voltage to 16
volts and its resistance limit to 35 Megohms.
1. Insert the Verification Tester’s stereo plug into the
monitor’s remote jack #1.
2. Select “1.5M LOW” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate, and the yellow L LED should
flash. The audible alarm should not sound.
3. Select “1.5M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
4. Select “35M PASS” with the Verification Tester’s
rotary switch. The monitor’s green OK 1 LED
should illuminate. The audible alarm should not
sound.
5. Select “35M HIGH” with the Verification Tester’s
rotary switch. The monitor’s red H LED should
illuminate, and the audible alarm should sound
continuously.
6. Repeat steps 1-5 for jack #2 on the remote. The
audible alarm will chirp when jack #2 fails high.
Figure 2. Using the 724VK2 Verication Tester with the
724 Workstation Monitor
TB-9012 Page 3 of 3 © 2015 DESCO INDUSTRIES, INC.
Employee Owned
SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com
Specifications
Dimensions:
3.8" L x 2.4" W x .9" H
(10 cm x 6 cm x 2 cm)
Weight:
0.2 lbs
(0.1 kg)
Resistance Values:
Setting Nominal
Resistance
% Tolerance of
Nominal Resistance
1.5M LOW 1.33 Megohms ±2%
1.5M PASS 1.69 Megohms ±2%
10M PASS 8.45 Megohms ±2%
10M HIGH 11.5 Megohms ±2%
35M PASS 29.4 Megohms ±2%
35M HIGH 40.2 Megohms ±2%
These resistance values may be verified using a digital
voltmeter and setting it to read Ohms (Ω). Connect your
voltmeter’s test leads across the Limit Comparator’s
stereo plug. If any value is out of specification, the Limit
Comparator must be returned to the manufacturer for
repair.
Limited Warranty, Warranty Exclusions, Limit of
Liability and RMA Request Instructions
See the SCS Warranty -
http://staticcontrol.descoindustries.com/warranty.aspx