TB-6502
Page 3 of 8
Revision May 2007
© 2007 DESCO INDUSTRIES INC.
Employee Owned
Power Ratings and Environmental Conditions
Rated voltage for Plug-in Power Supply: 120VAC (+/-10% maximum) 50Hz, 50mA
Rated voltage for 50407/50413: 12 Volts DC, 600 mA, (2.5mm connector - centre positive)
Relay contact rating: 1A at 30VDC maximum
Suitable for indoor use only at altitudes not exceeding 6500ft. (2Km)
Maximum relative humidity of 80% up to 88
°
F (31
°
C) decreasing linearly to 50% @ 104
°
F
(40
°
C)
Pollution degree 2 per IEC 644
Temperature range of 41
°
F (5
°
C) to 104
°
F (40
°
C)
The test resistance limits for footwear and wrist strap tests are controlled by the DIP switches
inside the tester. For a configuration different than the default settings and reset the DIP
switches on the side of unit as desired.
Footwear resistance range selection.
DIP switches 1 & 2 control the “HIGH” limit for the footwear test selection as follows:
Switch 1 Switch
2
High Limit Resistance
ON
ON
10 Megohms (1 X 10E7)
OFF
OFF
35
Megohms (3.5 X 10E7)
DEFAULT (EUROPE)
ON
OFF
100 Megohms (1 X 10E8) DEFAULT (USA)
OFF
ON
1
Gigohm
*At 1 Gigohms high limit resistance, a dirty footplate could result in a false pass. When using
this setting, special care must be taken to keep the footplate clean.
DIP switches 3 & 4 control the “LOW” limit for the footwear test selection as follows:
Switch 3 Switch
4
Low Limit Resistance
OFF
OFF
10 Kilohms (1 X 10E4)
ON
OFF
100 Kilohms (1 X 10E5)
DEFAULT (EUROPE)
OFF
ON
1 Megohms (1 X 10E6) DEFAULT (USA)
Wrist strap test option selection.
DIP switch 5 must be “ON” (DEFAULT SETTING) for the wrist strap test to be active.
If
the wrist strap test is disabled by DIP switch 5 being “OFF”, the 3 LEDs for this test will
remain “OFF” at all times.
The “LOW” limit for the wrist strap test is set to 1 Megohms and can not be changed by the
user.
DIP switch 6 in the “ON” position (DEFAULT SETTING - USA) sets the “HIGH”
limit for the wrist strap test to 10 Megohms (10E7).
DIP switch 6 in the “OFF” position
(DEFAULT SETTING – EUROPE) sets the “HIGH” limit for the wrist strap test to 35
Megohms (3.5 X 10E7).
