Specifi Cations - 3M Wrist Strap and Ground Monitor 773 User Manual

Section 3.0 Specifi cations
3M Wrist Strap and Ground Monitor 773
™
Parameter
Ground Impedance Alarm Level
Wrist Strap Alarm
Body Voltage
Operator Loop Resistance
Output Signal Level
Alarm Indicators
Visual Indication (LED)
Audible
Operating Environmental Range
Dimensions
AC/DC Adapter
US 120VAC, 60Hz
Universal 100 - 230VAC 50 - 60Hz
10
Typical Value or Function
1 to 20 Ohms
+/-5 Volts on operator
10 Megohms on operator (plus two 1 Megohm
resistors in the end of the ground cord that
attaches to the wrist band)
Logic 1 (+5V) if below selected resistance level
(all "pass")
Logic 0 (0V) if above selected resistance level
(any failure or power loss)
Note: This is for both process tools and wrist
strap monitoring.
Green OK, Red Fault Condition
Note: Operator LEDs red or green will not
illuminate if wrist strap is not plugged into jack.
Buzzer fault condition if enabled is ON.
Temperature: 50°F, (10°C) to 110°F (43°C)
Humidity: 75% R.H. Maximum
2.4 in. W x 0.85 in. H x 2.25 in. L
61 mm x 22 mm x 59 mm
Output: 12VDC @500 mA
Output Plug Polarization: Center Positive
Output Plug: 5.5 mm O.D. x 2.1 mm I.D. x
2.1 mm x 9.5 mm length