PORTABLE GPS CURRENT INTERRUPTERS

… CRONOS SERIES

    Rugged design .. highly reliable .. easy to operate .. competitively priced

    Precision clock-timing even with an intermittent view of the GPS satellites

    Runs on replaceable D-Cell batteries .. extremely low power consumption for long battery life

    Easy to program via a PC or can “quick select” via a keypad

    Available in 100A and 40A relay models – both relays are rated at 120V AC/DC

    Solid-state (non-polarity dependent) relay – no orientation or polarity concerns

    Only 1mV dropped per Amp-both small and large currents can be interrupted

Specifications

Maximum Current:

100 Amps at 120V (12,000 watts) external relay

40 Amps at 120V (4,800 watts) internal relay

Maximum Working Voltage:

170V DC (either polarity), 120Vrms (50/60Hz).

Voltage Drop:

1mV per Amp Suitable for interrupting low Voltage bonds and anodes.

Overload Protection:

75kW(10/100µs); 500kW(8/20µs) 1.2kA peak @ clamp voltage. Auto thermal shutdown at 105^oC.

Isolation to ground:

2,000 Volts

Setup Options:

    On/Off 0.1 to 99 sec. 0.1 sec increments

    Start and stop date and time

    Begin cycle with relay open or closed

    Close relay at end of work day

    Start cycle at beginning of work day

    Switching offsets +/-500ms (both On-to-Off and Off-to-On) – allows for use of other relay types.

Power Consumption:

    Runs on 2 “D” Cell batteries (3.6V, 19Ah)

    Battery-life depends on programmable settings – 2 years continuous operation typical on default settings

Time Standards:

UTC (default) or GPS; Synchronization @ 00.00 (default) or @ start time; Local –Offset; user defined to ensure consistency

Clock/Interruption Accuracy:

    1ms max. deviation with satellites in view

    0.5 ms per hour without satellites in view

    Reacquires precision time when satellites return to view

Temperature compensated range:

-40^oC to +85^oC.

Temperature Range:

    Relay Operation: -40 ^oC to +85 ^oC

    LCD Operation: -20 ^oC to +70 ^oC

Multiple Unit Programming:

Cronos PC software allows personal settings to be created and saved for future download to Cronos units, or a "master" Cronos unit

can be used to automatically program other Cronos units.

Size/Weight:

    40A Model: 9”L, 11”W, 6”D (15.4 lbs)

    100A Model:

     Control Unit: 9”L, 11”W, 3”D (5.6 lbs)

     Relay Unit: 13.5”L, 7”W, 4”D (19.4 lbs)

Ships with the following:

    6 feet of ultra flexible #2 cable

    Windows setup software

    PC to Cronos RS-232 cable