PS-2076
Page 3 of 4
Features
A. Work Surface Ground LEDs:
When the green LED is lit, the work
surface is properly grounded. When
red LED is lit, the work surface is not
properly grounded.
B. User Ground LEDs:
When the
green LED is lit, the operator is
properly grounded. When red LED is
lit, the operator is not properly
grounded.
C. Monitored User Ground:
The
banana jack for the wrist strap being
monitored.
D.Work Surface:
The banana jack for
the work surface being monitored.
E. Common Point Ground:
Can be used to ground either user or
work surface.
F. Parking Snap:
When touched by
the wrist strap wearer, this snap will
deactivate the alarm function for six
seconds. This allows time for the
wearer to disconnect the coil cord
from the wristband and “park it” on
Figure 4. Workstation Real Time Continuous Monitor Features
this snap. While parked, the coil cord
disables the alarm function to allow
the wearer to leave the workstation.
The “User Ground” LED will remain
off while cord is parked. Upon
returning and removing the coil cord
from the parking snap, the wearer has
six seconds to hook up to the
wristband before the alarm sounds.
Specifications
RESISTANCE LIMITS
Worksurface limit*
set to 500 megohms
Power Source
120 VAC, 50-60 Hz
Current Drain
<15 mA RMS
Response time to alarm
<50 mS
Standby “parking” snap delay
6 seconds
Long Term Drift
1/2% per decade
(1st decade is 1 hr)
A
B
E
D
C
F
Temperature
10-40 degrees C°
Field Adjustment
None required
Size
3/4" x 3-1/4" x 4-3/8"
Maintenance and
Calibration†
The Workstation Full Time
Continuous Monitor is solid state and
designed to be maintenance free. The
41116 is calibrated to standards
traceable to NIST. There are no user
adjustments that can be made.
Because of the impedance sensing
nature of the test circuit, special
equipment is required for calibration.
We recommend that calibration be
performed annually, using the #41119
Continuous Monitor Calibration Unit.
The Calibration Unit is a most
important product which allows the
customer to perform NIST traceable
calibration on continuous monitors.
The #41119 is designed to be used on
the shop floor at the workstation,
virtually eliminating downtime,
verifying that the continuous monitor
is operating within tolerances.
†This cannot be verified with standard DC test
equipment. The Workstation Real Time
Continuous Monitor is an impedance sensing
device and the limits are determined by the
magnitude and angle of the impedance.
*Limit can be varied and set to 1 gigohm
maximum.
© 2006 DESCO INDUSTRIES INC.
Employee Owned
432 NORTHBORO ROAD CENTRAL • MARLBORO, MA 01752 • PHONE (508) 485-7390 • FAX (508) 480-0257 • http://www.esdsystems.com
