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EMIT 

- 3651 Walnut Avenue, Chino, CA 91710 • (909) 664-9980 • Website: 

DescoEMIT.com

TB-6557

 Page 2 of 4

© 2011 DESCO INDUSTRIES, INC.

Employee Owned

C. GND-H:

 Monitors the Multi-Ground Hub.

D. Ground Terminals:

 Monitors a combination of 8

worksurfaces, tools, carts, and accessories.

E. 12 VDC Power Jack:

 Connect the power adapter 

here.

F. Ground Reference:

 Connect to electrical ground.

FUNCTION LEDS

A

B

C

Figure 4. Multi-Ground Continuous Monitor controls and 

LEDs.

A. Resistance Range LEDs:

 Indicates the selected

resistance at which you would like to test.

B. Program LED:

 Will illuminate when the monitor is 

readyto be calibrated or programmed. When the LED is 

off, the monitor is in standby mode / normal operation.

C. Set Buttons:

 Used to calibrate and program the 

monitor.

Installation

 (See Figure 6)

I.     Remove the monitor from the carton and inspect for  

       damage.

II.    Determine the mounting location of the Multi-Ground

       Continuous Monitor. It is normally installed under a

       bench top toward the front edge of a workstation     

       where the LEDs are clearly visible.

III.   Install the monitor using the flanges and provided

       screws (see Figure 5).

IV. Insert the banana plug of the included right angle

ground wire into the banana jack labeled “GROUND

REFERENCE” on the monitor.

Figure 5. Mounting the Multi-Ground Continuous 

Monitor.

V. Insert the other end of the ground wire to electrical

ground. The included ring terminal may be used for

this connection.

VI. Install the included Multi-Ground Hub Kit near the

monitor. Visit Desco.com and see Drawing 09837 for

installation instructions.

VII. Attach the ring terminal end of the included 10’ long

ground wire to the Multi-Ground Hub.

VIII.Insert the tinned wire end of the same ground wire 

into the terminal labeled “GND-H” on the monitor.

CONNECTING ITEMS TO THE MONITOR

The Multi-Ground Continuous Monitor can be set to 

monitor the resistance of worksurfaces, tools, carts, and 

accessories using the test ranges of 1 ohm, 1 megohm, 

10 megohms, and 35 megohms. It can monitor a com

-

bination of 8 items.  The following procedure requires 

items that are not included with the Multi-Ground Con

-

tinuous Monitor. Use terminals 1-8 on the back of the 

monitor to connect the item to be monitored to the Multi-

Ground Continuous Monitor. One ground wire must be 

connected to the monitor and the item to be monitored. 

Another ground wire must be connected to the item to be 

monitored and the Muti-Ground Hub (see

Figure 6).

CONNECTING TO THE RELAY TERMINALS

The Multi-Ground Continuous Monitor can output its test

results to a light fixture or programmable logic controller

(PLC) using the terminals labeled as “RELAY 1” and

“RELAY 2.” Refer to Figure 6 and the following 

informationto connect light towers or programmable logic 

controllers to the Multi-Ground Continuous Monitor.

Terminals 1 & 2 = normally open

Terminals 2 & 3 = normally closed

1 A@ 30 VDC (Rating)

Operation

SETTING TEST RANGES

Hold down the SET 1 and SET 2 buttons until the 

monitor beeps.  The GROUND 1 LED on the face of the 

monitor will begin to blink indicating that its settings are 

being modified.  The PRG LED will illuminate to indi

-

cate that the monitor is in Programming Mode. The test 

range is set if its corresponding LED is illuminated. Use 

the SET 2 button tocycle through the test ranges. If you 

would like to turn the ground channel off, press SET 2 

until none of the resistance range LEDs are illuminated. 

The LED for the selected channel will illuminate red. 

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