Specifications E-41
Dimensions (W 
´
 D 
´
 H)
Model 520: 17 
´
 15 
´
 6½ inches
(431 
´
 380 
´
166 mm)
Model 521: 23 
´
 15 
´
 6½ inches
(585 
´
 380 
´
 166 mm)
Weight
Model 520: 17lb. 10oz. (8 kg)
Model 521: 23lb. 2oz. (10.5 kg)
Environmental Requirements
Parameter Range
Operating Temperature 41 to 104°F (5 to 40°C)
Storage Temperature 14 to 122°F (-10 to +50°C)
Operating Humidity 20 to 80% RH
Storage Humidity 5 to 95% RH
Electrical requirements: 120 volts ac (+5.5%, ±15%),
60 Hz (±2%)
Also available for 230 volts
ac (+6%, -10%) or 240
(+10%) volts ac, 50/60 Hz
(±2%)
Specifications subject to change without notice.