iso-tech data sheet
icm 139r
clamp meter
feature:
z 4000 count digital display
z backlit, large scale display
z analog bargraph
z true rms reading on ac mode
z nickel-steel alloy jaw mechanism
z excellent residual magnetism performance
z ac 1000 amps capability
z dc 1000 amps capability
z ac 750 volts capability
z dc 1000 volts capability
z 400 ohms resistance capability
z continuity beeper
z display hold
z peak hold (10ms)
z dca zeroing key
z min/max function
z frequency counter
z auto power off
z up to 51mm dia. (2000 mcm) conductor
z 4 feet【敏感詞】proof
z hand guard & stream line designed
z deluxe carrying case
z convenient battery door
z cat.iv 600v/cat.iii 1000v safety standard
specification:(all at 23℃±5℃,≦80％ r.h.)
dc/ac voltage
range
input impedance
overload protection
accuracy
0v~400v, 400v~1000v dc
≧1mω
1000v dc【敏感詞】ac peak
±(0.7％+2dgt)
0v~400v, 400v~750v rms
1mω//＜100pf
750v rms
±(1％+5dgt) 50hz~500hz
resolution: 100mv
conversion type: average sensing true-rms indicating
dc/ac current
range
dc accuracy
±(1％+3dgt)
400a~ 1000a
±(1.9％+7dgt)
heading/ language heading
range
frequency response
ac accuracy
0a~400a
50hz~60hz
±(1.5％+5dgt)
400a~1000a
50hz~60hz
±(1.9％+7dgt)
0a~400a
61hz~400hz
±(1.9％+5dgt)
400a~1000a