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DESCO WEST 

- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST 

- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: 

Desco.com

TB-3083

 Page 2 of 5

© 2020 DESCO INDUSTRIES INC

Employee Owned

December 2020

Features and Components

A. Operator 1 Status LEDs:

 When the green LED is 

illuminated, operator 1 is properly grounded. When the 

LED is illuminated red or yellow and the alarm sounds, 

operator 1 is not properly grounded.

B. Worksurface 1 Status LEDs:

 When the green LED 

is illuminated, worksurface 1 is properly grounded. 

When the red LED is illuminated and the alarm sounds, 

worksurface 1 is not properly grounded.

C. Operator 2 Status LEDs:

 When the green LED is 

illuminated, operator 2 is properly grounded. When the 

LED is illuminated red or yellow and the alarm sounds, 

operator 2 is not properly grounded.

D. Worksurface 2 Status LEDs:

 When the green LED 

is illuminated, worksurface 2 is properly grounded. 

When the LED is illuminated red and the alarm sounds, 

worksurface 2 is not properly grounded.

E. Power Jack:

 Connect to the included 12VDC power 

adapter.

F. Operator 2 Remote Jack:

 Connect to the black 

operator remote cable.

G. Operator 1 Remote Jack:

 Connect to the white 

operator remote cable.

H. Monitored Mat 1 Terminal: 

Monitors a worksurface 

mat for proper dissipative resistance and static charges. 

Connect the white mat monitor cord here.

I.  Ground Terminal:

 Common ground point for the 

monitor. Connect to the green and yellow monitor 

ground cord.

J. Monitored Mat 2 Terminal: 

Monitors a worksurface 

mat for proper dissipative resistance and static charges. 

Connect the black monitor cord here.

K. Data Output:

 For manufacturer use only.

L. Alarm Audible Adjustment:

 Turn the trimpot 

counter-clockwise to increase the audible alarm volume 

and clockwise to decrease it.

M. Mounting  Holes:

 8-32 PEM nuts are located on the 

left and right sides of the monitor for pairing with the 

Desco 

19663

 Mounting Brackets.

N. Operator Setting Switches:

 Toggles the monitor’s 

settings for operator test voltage and high test limit.
Switches 1 and 2 control the operator test voltage.

Switch 1 Switch 2 Operator Test Voltage

RIGHT

LEFT

5V

LEFT

RIGHT 8V

Switch 3 controls the operator HIGH test limit.

Switch 3 HIGH Limit Resistance

RIGHT

10 megohms (1 x 10⁷ ohms)

LEFT

35 megohms (3.5 x 10⁷ ohms)

default setting

Figure 2. Dual-Wire Dual Operator Monitor features and 

components

A

C

B

D

E

F

G

H I J

K

L

FRONT VIEW

BACK VIEW

LEFT-SIDE VIEW

M

N

Summary of Contents for 19662

Page 1: ...he operator s path to ground is between the 10 or 35 megohms2 upper limit adjustable and 1 megohm1 lower limit 1 See Operator Test Voltage section below for pass fail specs User should determine if these voltages can damage the device being handled Other lower voltage monitoring systems may need to be considered 2 See Operator Test Range section below for pass fail specs Figure 1 Desco 19662 Dual ...

Page 2: ... operator remote cable G Operator 1 Remote Jack Connect to the white operator remote cable H Monitored Mat 1 Terminal Monitors a worksurface mat for proper dissipative resistance and static charges Connect the white mat monitor cord here I Ground Terminal Common ground point for the monitor Connect to the green and yellow monitor ground cord J Monitored Mat 2 Terminal Monitors a worksurface mat fo...

Page 3: ...s will remain in the STANDBY condition until a wrist cord is plugged into the operator remote STANDBY mode is indicated by a blinking yellow operator LED 2 Plug a wrist strap cord not attached to the wristband into the monitored jack labeled WRIST STRAP MONITOR located on the remote This automatically activates the selected operator channel The corresponding operator LED should illuminate red and ...

Page 4: ... EMIT 50524 Limit Comparator for Dual Wire Monitors Specifications Input Voltage and Frequency External Adapter AC DC Power Adapter Power Input 100 240 VAC 50 60 Hz Power Output 12 VDC 0 50 A Cable Length 5 ft 1 5 m Operating Temperature 50 to 95 F 10 to 35 C Environmental Requirements Indoor use only at altitudes less than 6500 ft 2 km Maximum relative humidity of 80 up to 85 F 30 C decreasing li...

Page 5: ...e Desco com TB 3083 Page 5 of 5 2020 DESCO INDUSTRIES INC Employee Owned December 2020 Figure 6 Operator Remote dimensions Replacement remotes are available as Desco items 50525 and 50526 Limited Warranty Warranty Exclusions Limit of Liability and RMA Request Instructions See the Desco Warranty Desco com Limited Warranty aspx ...

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