型号：  TK550-B
品牌：Innovation

描述：With Voice, Data and Video all being combined and mixed in most installations, it is good to find one solution for testing the com      

规格：
Physical Dimensions：
Size: 16.3 x 7.1 x 3.6 cm (6.4 x 2.8 x 1.4 inches)
Weight: 256 grams (9.0 oz) with battery and
remote-end of  tester

Power：
1 9V alkaline battery
Active: 425 hours
Standby: 4 years

Maximum Voltage：
Parameters refer to the maximum voltage that
can be applied to any 2 connector pins without
causing damage to the tester.   
RJ Jack: 66 Vdc or 55 Vac
F-connector: 50 Vdc or Vac                      

Operating Environment：

Operating temperature: 0 to 50 °C (32 to 122 °F)

Storage temperature: -20 to 60 °C (-4 to 140 °F)

Humidity: 10% to 90%, non-condensing

Cable Types：
Tester supports shielded or unshielded cables,
Cat-7, Cat-6x,
Cat-5E, Cat-5, Cat-4, Cat-3, and Coax cables.

Maximum RJ Cable Length：
0 to 305 meters (1,000 feet)

Minimum Cable Length for Split Pair Detection：
0.5 meters (1.5 feet)

Maximum Coax Cable Length：
100 ohms maximum DC resistance, center
conductor plus shield  

Low Battery：
Icon flashes when battery voltage falls below 6V

Measurement Technology：
Capacitance testing

Compliance：
Complies with Conformité Européenne directives.

Length Accuracy Without Length Constant Accuracy：
± 3% plus ± 1 foot
Cable Length
Minimum of  2,000 ft CAT5E cable with 15 pF/ft
length constant

Default Length Constants：
Restored with power on reset.              

Voice: 17.4 pF/ft

Video: 16.5 pF/ft

Data: 15 pF/ft