
unit is a supervisor ground connection jack where a supervisor,
guest, or equipment can be grounded.
Figure 4 shows the monitor control unit as it is viewed from the
rear, with the work surface wiring in place.
Figure 4. Wiring connection instructions for the 19230 monitor
control unit.
The following procedure will outline how to correctly wire the
19230 monitor control unit to properly monitor an ESD
protected workstation.
1. Use rear phone jack connections and connect Satellite
Remote Units to base unit with phone cable. See Figure 4 for
wiring connection instructions.
2. Mat monitoring circuit maybe bypass if user wish not to
monitor worksurface. Back of the satellite there is a 1/4” hole
with a plug. Remove plug to gain access to switch.
3. Verify that a ground cord is properly connected to snap
socket on one corner of the ESD worksurface. The other end
of the ground cord is to be attached to the workbench common
point ground. After Satellite Remote Units are mounted, route
wires using a direct route; try to avoid running wires adjacent
to metal, if possible.
4. Confirm that worksurface surface resistance is 5 x 108 ohms
or less. Connect the stripped end of the worksurface cord
included with the unit to the terminal marked "Work Surface" on
the back of the unit. Snap the other end to the worksurface
grounding point as shown in figures 4 and 5.
Figure 5. Installing cords on the worksurface.
5. A convenient 3-wire 120 VAC outlet should be located and
tested for proper wiring and grounding. We recommend Desco
Item 98130 AC Outlet Analyzer to verify proper wiring.
6. Plug the transformer into the outlet and connect the mini
plug into the back side of the monitor control unit. The green
Work Surface LED should be lit. The monitor control unit is
now ready for use. If the red Work Surface LED is flashing,
check the snap fastener and ground cords for proper
connection.
Installation on Micastat Laminate
Materials Needed:
2 14244 Flush Mount Ground Laminate Inserts
1 14242 Installation Tool for Flush Mount Insert
1. Install the Flush Mount Inserts first. It is recommended to
install one in the right back corner and the other in the left back
corner of the Micastat laminated bench top.
2. Once both inserts are installed, cut the ground cord supplied
with the monitor into two pieces; make sure that the tinned end
is long enough to connect from the worksurface terminal on the
Satellite Remote Unit to one of the flush mount terminals
located under the bench.
3. The remaining wire can then be used to connect the other
flush mount terminal to ground using the supplied ring terminal.
The shrouded molded end can then be cut off.
When complete, one flush mount terminal will connect the
Micastat laminate to ground, while the other will connect it to
a satellite remote unit. The satellite remote unit then monitors
the ground connection between the two inserts, and since
Micastat is the only ESD laminate made with a physical
uniform ground layer, it will monitor the entire Micastat
surface ground. The wires will stay under the bench,
maximizing the usable space on the bench top.
Operation
When the satellite remote unit is installed and is connected to a
grounded ESD protective work surface, the monitor's green
Work Surfaces LED's and its two red Operator LED’s should
be on.
To use the monitor:
1. Plug a wrist strap cord, into either of the Satellite remote
units marked "OPERATOR" on the front of the Satellite remote
unit. This automatically activates the selected operator
channel. The red Operator LED should turn on and the audio
alarm should beep.
2. Snap the cord to the wristband, which should fit snugly on
your wrist. This should silence the audio and cause the LEDs
to switch from red to green. If this does not happen, check the
coil cord for continuity or damage. Examine your wrist and
ensure that it has a secure fit. If you have dry skin use ESD
hand lotion such as Desco Item 81080 Reztore ESD Hand
Lotion.
When leaving the area, a person can take the coil cord along
or unsnap the cord from wristband and attach the socket to
the Satellite remote unit snap that is labeled "Park". This will
de-activate the alarm and allow you to leave the station. If the
cord is plugged into the jack marked "Operator" the monitor will
alarm continuously until you either park the cord, or remove
TB-3018 Page 3 of 4
TO MONITOR
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 (909) 627-8178 Fax (909) 627-7449
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TO
POWER
ADAPTER
WORKSTATION #1
WORKSTATION #2
2009 DESCO INDUSTRIES INC.
Employee Owned