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TB-3086

 Page 8 of 8

Specifications

Full-Time Continuous Monitor

Input Voltage and 

Frequency

Power Input: 

100-240 VAC, 50/60 Hz
Power Cord Length: 

6 ft. (1.8 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 linearly to 50% @ 

85° F (30° C)

Dimensions 

2.85" L x 5.13" W x 1.00" H

(72 mm x 130 mm x 25 mm)

Weight

0.35 lbs. (0.16 kg)

Operator Test Range* 500 kilohms to 10 megohms 

impedance

Worksurface Test 

Limit**

10 megohms (±20%)

Operator Test Voltage 1.2 V peak-to-peak @ 1.2 µA, 

open circuit

Worksurface Test 

Voltage

5 to 7.5 V, open circuit

Alarm Response Time <500 ms
Country of Origin

United States of America

*This cannot be verified with standard DC test

equipment. The continuous monitor is an impedance

sensing device, and the limits are determined by the

magnitude and angle of the impedance.
**

The worksurface mat must have a conductive 

layer such as Dual Layer Rubber or Dissipative 

3-Layer Vinyl with conductive buried layers. Desco

workstation monitors are not recommended for use with 

homogeneous matting.
ANSI/ESD S20.20 requires the use of a surface 

resistance meter for periodic verification of a 

worksurface's resistance-to-ground (Rtg). Constant 

monitors may not be used as a substitute for this 

requirement.

Power Relay

Input Voltage and 

Frequency

90-120 VAC, 50/60 Hz

Output Voltage

90-140 VAC

Max Load

12 A

Input Connector

C-13/C-14

Output Connector

4x NEMA 5-15

Outlet Types

2x Normally OFF

1x Normally ON

1x Always ON

Dimensions 

6.7" L x 3.7" W x 1.4" H

(170 mm x 95 mm x 35 mm)

Weight

0.7 lbs. (0.32 kg)

Power Cord Length

1.5 ft. (0.5 m)

Interface Cable Length 7 ft. (2.1 m)
Operating Temperature -35 to 145° F (-37 to 63° C)
Environmental 

Requirements

5 to 95% RH non-condensing
Indoor use only

Country of Origin

China

Figure 18. Mounting hole locations on the Full-Time 

Continuous Monitor (all dimensions are in inches)

Test Equipment Depot - 800.517.8431 - 

5 Commonwealth Ave,

 Woburn, 

MA 01801 

 - TestEquipmentDepot.com 

Summary of Contents for TB-3086

Page 1: ...peak at 1 to 2 microamperes 0 000002 amperes to the wrist strap that is connected to the continuous or constant monitor The test voltage creates a square wave that the monitor circuit compares to established patterns By monitoring the distortions or shape of the square wave Wave Distortion Technology determines if the monitored circuit is complete the operator is in the circuit and the total equiv...

Page 2: ...ountersunk Washer 1 Flat Head Screw 6 32 x 1 4 2 Pan Head Screws 6 x 3 8 1 Dual Lock Fastener Set 2 Length 1 10mm Interchangeable Park Snap 1 10mm Operator Jack Adapter 1 Power Cord with UK Plug 1 Certificate of Calibration 19323 Remote Alarm 1 Power Relay 1 Interface Cable 1 Power Cord with North American Plug Figure 3 Desco 19321 Full Time Continuous Monitor packaging contents Figure 4 Desco 193...

Page 3: ...d park a wrist strap when leaving the workstation without creating a false alarm Touch the park snap or park switch and the monitor s audible alarm will disable for approximately 8 seconds Use this time to disconnect the wrist cord from the wristband and attach it to the park snap or remove the banana plug from the jack Upon returning to the workstation and disconnecting the wrist cord from the pa...

Page 4: ... cord here Figure 8 Installing the Full Time Continuous Monitor Mat Monitor Cord Full Time Continuous Monitor Grounded Worksurface Mat Power Cord Countersunk Washer Flat Head Screw 1 Remove the Full Time Continuous Monitor from the carton and inspect for damage 2 Determine the mounting location of the Full Time Continuous Monitor Its LEDs should be visible to the operator Secure the Full Time Cont...

Page 5: ...ous Monitor Connect the opposite end to the green connector on the side of the Power Relay 4 Connect the power cord from the Full Time Monitor to the Always ON receptacle on the Power Relay 5 Connect the power cord of the external electronic device to one of the Normally OFF receptacles on the Power Relay 6 Toggle the power switch to the RESET position Both the Full Time Continuous Monitor and the...

Page 6: ... the wristband snugly onto the wrist 2 Snap the wrist cord to the wristband 3 4 Plug the wrist cord into the operator jack The green operator LED will illuminate This indicates that the operator is properly grounded If this does not happen examine the wrist cord for continuity or damage and the wristband to ensure that it fits securely If you have dry skin apply an approved dissipative hand lotion...

Page 7: ...rials In general Desco recommends that calibration be performed annually Use the Desco 98221 Wave Distortion Monitor Verification Tester to perform periodic verification once every 6 12 months of the Full Time Continuous Monitor The verification tester can be used to check the test limits of the Full Time Continuous Monitor without removing it from the workstation See TB 3074 for more information ...

Page 8: ...The worksurface mat must have a conductive layer such as Dual Layer Rubber or Dissipative 3 Layer Vinyl with conductive buried layers Desco workstation monitors are not recommended for use with homogeneous matting ANSI ESD S20 20 requires the use of a surface resistance meter for periodic verification of a worksurface s resistance to ground Rtg Constant monitors may not be used as a substitute for...

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