BiRa Systems

CAMAC Products

MODEL 6700
POWERED CAMAC CRATE
(700 WATTS)  

FEATURES:

General Description:

 Bi Ra Model 6700-SCB is a powered CAMAC crate which fully complies with CAMAC specification. This model was designed to meet the user’s increasing power requirements by providing several different model types of linear power supplies. The blower unit and power supplies are modular allowing for easy upgrading or maintenance of system. The Model 6700 is made up of three components: the crate, the 700 Watt power supply, and the six fan blower.

Crate Description:

 The crate incorporates the CAMAC dataway with an 86-contact PC edge connector soldered at each station. The crate supports the rear mounted power supply module and houses the removable blower unit. The crate assembly is constructed of reinforced steel and designed for convenience and serviceability. Both the blower unit and power supply can be detached without removing the crate from the rack. One piece card guide racks are Electroless nickel-plated to insure smooth alignment and minimize air obstruction for cooling of the modules. The rugged solid racks sinks heat from modules to increase reliability and also provide excellent ground for low level analog applications.

Power Supply Description:

The Model 6700 Power Supply employs the Ferro-Resonant transformer and Darlington transistors to achieve higher efficiency and reliability. The power supply is modular in construction, single connector attachment, and automatically latches into position. The power supply is self-ventilated by a large internal blower (rated at 236 CFM) to maximize cooling area and air flow in order to enhance performance and reliability. The power supply outputs are protected from over-voltage and over-current. Additional features include handles for maneuverability and safety, also instant visibility and easy access to all fuses.

Blower Description:

The front-removable six fan blower unit features low-vibration, low-noise, and venturi-type ball-bearing fans to provide good air flow and maximum module ventilation. The blower unit and crate side panels were concurrently designed to insure maximum air-intake. This design allows the user the versatility to use the powered crate as a bench top or rack mounting it. The three large air intake ports house the dust filters which can be removed in seconds without any tools. Front panel indicators include over-temperature warning, a switch-selected digital meter for monitoring all voltages and currents, and voltage test points.

Independent Rack Mounted Supply:

The modular power supply design allows the end-user the flexibility to rack mount the supply independently from the crate for shallow or non-rear accessible racks. This requires two simple components: the Power Supply Mounting Tray and the power cable. The tray mounts to a standard 19" rack and is designed to allow the user to mount and remove the power supply easily. The crate to power supply cable is 4ft. long or can be customized per user’s requirements.

MODEL 6700-SCB Specifications:

 Dimensions:           19" rackmount, 12.25" height, 22.00" depth.
Voltage Meter:        Digital meter provides monitoring of all output
                             currents and voltages.
Cooling:                 Six high capacity DC fans rated at 600 CFM @ 0"
                             static pressure.
Total Weight:          90 lb. (41 kg.).

Power Specifications:

 Total Power: 700 Watts maximum +/-6V,+/12V, +/-24V combined.

Maximum output currents from different Power supply models:
MODEL +6V -6V Shared +12V -12V Shared +24V -24V Shared Max.Power Notes
6700PS 60A 60A 90A 4A 4A 8A 8A 8A 16A 700Watt 1,2,4
6750PS 60A 60A 90A 4A 4A 8A 8A 8A 16A 700Watt 1,3,4

     The 6750-SCB and 9750-SCB operate at 50Hz with input voltage of 230V

Notes:

 1. On all models the +/-12V are derived from the +/- 24V sources; therefore the +12 V Load must
    be considered part of the +24V load and the –12V considered part of the –24V load.
    (All models provide current foldback limiting and overvoltage crowbar for all output voltages. )
2. AC Input: 120VAC 60Hz. AC input line current @ 14A min.
3. AC Input: 230VAC 50Hz. AC input line current @ 8A min.
4. 19" Rack Mount Modular Power Supply for independent mounting from crate. Order prefix (RM)

Electrical Specifications:

AC Input:                           105-130VAC, 60Hz
                                         210-254VAC, 50Hz (Optional)
AC Overcurrent:                  Fuse protected in both line and neutral conductors.
AC Fuse rating:                  105-130 VAC 15A Slowblow
                                         210-254 VAC 10A Slowblow
Efficiency:                          45% minimum
Adjustability:                      All outputs user adjustable +/-7% minimum.
Line and Load Regulation:   Better then 0.1% over AC input range and 0 to 100% Load change.
Ripple and Noise:               <10 mV p-p, <1mV RMS 200 kHz bandwidth.
Overload Protection:           All outputs are protected against overload and short circuit.
Overvoltage Protection:       Overvoltage protection circuit crowbars output when trip lever is exceeded.
Power Supply Cooling:        Self cooled with internal EBM AC ball bearing fan.
Thermal Protection:            Shuts down power supply if overheated. Automatic recovery.
Thermal Warning:               Heatsink temperature within 10°C of thermal shutdown.
Operating Temp. Range:     Continuous operation from 0° to 40°C.
Remote Sensing: ;             All outputs are remotely sensed at the Crate backplane.
Voltage test points:            All outputs, front and rear locations.
Voltage display monitor:     All voltages and currents.

 6700-SCB Complete Manual

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Bi Ra Systems, Incorporated
2404 Comanche Road NE
Albuquerque, New Mexico 87107
Ph : 505-881-8887
Fax:505-888-0651