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2. SPECIFICATIONS
2.1. PERFORMANCE
INPUT AC VOLTAGE The CryoSecure can
accommodate input voltages of 100 V ac to 240 V ac
at 47 to 63 Hz.
INPUT CURRENT Typically 7.5 A rms when
connected to a 600-W compressor.
CIRCUIT PROTECTION The input ac power line is
protected with a 10-A fuse incorporated into the AC
POWER input connector on the rear panel.
2.2. CONTROLS AND INDICATORS
POWER Front-panel rocker switch turns power on/off.
INITIALIZE Front-panel push-button switch begins
system operation, and allows the user to manually cycle
through the operating sequences.
LED INDICATORS
AC POWER—mains power on/ battery recharging.
MAINS FAIL—mains power failure
HOLDING—system holding after an mains power
failure.
WARMING—detector warming.
BIAS OFF—bias hold off.
HOLD TIME Internal printed wiring board (PWB)-
mounted rotary switches (qty. 2) allow the user to set
amount of time the CryoSecure waits before entering
the warming state after a mains power failure.
WARMING TIME Internal PWB-mounted rotary
switches (qty. 2) allow the user to set amount of time
the CryoSecure waits before restarting the compressor
after a mains power failure.
BIAS OFF TIME Internal PWB-mounted rotary switch
allows the user to set amount of time the CryoSecure
waits after restarting the compressor, before allowing
the detector bias voltage to be applied.
DANGER
Isolate the controller from the mains
power supply before removing the
cover.
DEEP DISCHARGE PROTECTION In the event of a
long-term power failure, or if the ac mains are turned off
for an extended period of time, an internal relay will
disconnect the internal circuitry from the internal backup
battery before the battery discharges. When ac power
is restored, the system will resume normal operation
and the battery will be recharged.
2.3. INPUTS
AC LINE IN Rear-panel, international-standard IEC
power connector, type CEE-22, accepts power cables
wired according to local electrical standards. A power
cable is shipped with the CryoSecure.
BIAS SHUTDOWN Rear-panel BNC connector
accepts Bias Shutdown signal from detector. During
normal operation, this signal is passed through a relay
contact to allow bias voltage to be applied to the
detector. During a holding, warming, or bias-off
(cooling) state, the Bias Shutdown signal is interrupted,
preventing bias from being applied to the detector.
2.4. OUTPUTS
COMPRESSOR Rear-panel, type NEMA 5-15R AC,
provides ac mains voltage to the compressor. A solid
state switch in series controls on/off operation of the
compressor.
BIAS SHUTDOWN Rear-panel BNC connector
provides Bias Shutdown signal to the Bias Supply High
Voltage Shutdown.
2.5. ELECTRICAL AND MECHANICAL
WEIGHT Net 2.6 kg (5.8 lb); shipping 3.2 kg (7.0 lb).
DIMENSIONS 21.5 cm (8.4 in.) wide, 26 cm (10.2 in.)
deep, and 10.2 cm. (4.0 in.) high. Aluminum enclosure.
