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PORTABLE
GPS CURRENT INTERRUPTERS
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… CRONOS SERIES
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 Rugged design .. highly reliable .. easy to operate .. competitively priced
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Precision
clock-timing even with an intermittent view of the GPS satellites
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Runs on replaceable
D-Cell batteries .. extremely low power consumption
for long battery life
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Easy to
program via a PC or can “quick select” via a keypad
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Available in 100A and
40A relay models – both relays are rated at 120V AC/DC
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Solid-state
(non-polarity dependent) relay – no orientation or polarity concerns
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Only 1mV dropped per
Amp-both small and large currents can be interrupted
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Specifications
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Maximum Current:
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100 Amps at 120V
(12,000 watts) external relay
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40 Amps at 120V
(4,800 watts) internal relay
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Maximum Working
Voltage:
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170V DC (either
polarity), 120Vrms (50/60Hz).
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Voltage Drop:
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1mV per Amp
Suitable for interrupting low Voltage bonds and anodes.
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Overload Protection:
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75kW(10/100µs); 500kW(8/20µs) 1.2kA peak @ clamp voltage. Auto
thermal shutdown at 105oC.
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Isolation to ground:
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2,000 Volts
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Setup Options:
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On/Off 0.1 to 99 sec.
0.1 sec increments
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Start and stop date and
time
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Begin cycle with relay
open or closed
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Close relay at end of
work day
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Start cycle at beginning
of work day
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Switching offsets
+/-500ms (both On-to-Off and Off-to-On) – allows for use of other relay
types.
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Power Consumption:
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Runs on 2 “D”
Cell batteries (3.6V, 19Ah)
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Battery-life
depends on programmable settings – 2 years continuous operation typical on
default settings
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Time Standards:
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UTC (default) or
GPS; Synchronization @ 00.00 (default) or @ start time; Local –Offset; user
defined to ensure consistency
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Clock/Interruption
Accuracy:
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1ms max.
deviation with satellites in view
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0.5 ms per
hour without satellites in view
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Reacquires
precision time when satellites return to view
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Temperature
compensated range:
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-40oC to +85oC.
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Temperature Range:
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Relay
Operation: -40 oC to +85 oC
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LCD
Operation: -20 oC to +70 oC
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Multiple Unit
Programming:
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Cronos PC software allows personal settings to be created and
saved for future download to Cronos units, or a
"master" Cronos unit
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can be
used to automatically program other Cronos units.
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Size/Weight:
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40A Model:
9”L, 11”W, 6”D (15.4 lbs)
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100A
Model:
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Control Unit: 9”L, 11”W, 3”D (5.6 lbs)
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Relay Unit: 13.5”L, 7”W, 4”D (19.4 lbs)
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Ships
with the following:
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6 feet of ultra flexible
#2 cable
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Windows setup software
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PC to Cronos RS-232 cable
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