Maintenance
27
Specifications
To determine the model numbers of the Cal Cart components, see “Numbering”
on page ix.
Note: Certain sensors or connectors may be incompatible with some
models. See “Numbering” on page ix for a list of available components,
or contact Customer Service.
Max. Power
The Cal Cart’s maximum power is the MINIMUM of the max. power of the
sensor and the max. power of the load, under normal conditions.
Bird High Power Cal Cart
Bird 4421 RF Power Meter
Frequency Range Sensor dependent
Power Range Dependent on sensor, sensor connectors, and load
Connectors 1-5/8” Flanged
Dimensions 40”L x 22”W x 39”H (1005 x 550 x 991 mm)
Weight, Nominal 240 lbs. (109 kg)
Temperature Load coolant dependent
Calibration Cycle 1 year
VSWR Display 1.0 – 199.9 max
Return Loss Display 0 to 40 dB max
Display Accuracy ± 1 on least significant digit
AC Power 115/230 Vac @ 50/60 Hz
Batteries 8 Nickel Metal Hydride rechargeable 1.2 volt cells
Battery Life Approximately 8 hours continuous usage
Battery Charger Built-in battery charger. Drained batteries require
approximately 28 hours to recharge.
Display LCD, 4½ digit display. Indicates mode, measurement units,
battery condition, remote status, and signal increase /
decrease. Self contained backlight.
Fuse Rating
115 Vac
230 Vac
IEC (5 x 20 mm) Time Lag Type T
T630 ma
T315 ma
Dimensions, Nominal 15.5”L x 12.25”W x 4.25”H (393 x 311 x 108 mm)
Weight, Nominal 9.5 lbs. (4.3 kg)
