产品信息
不论在评估或量测一般家电、办公室自动化设备或工业用设备上的电源转换、传输效率或功率量测，弹性与人性化的设计使你的使用上得心应手。本系列数字瓦特表具有3个电压文件位，3个电流档位，及9个瓦特文件位，适当的分辨率与zui合理的价位是你*的选择。
产品特点
1.基本+/- 0.1%的准确度
2.电压、电流与瓦特皆为true rms 量测
3.电压及电流具有手动或自动的换文件功能，及自动换文件之频率量测
4.使用4 1/2位模拟数字转换器为基准，提供高准确度、高分辨率及高稳定度的量测
5.使用3个多任务的显示器，可依所需来选择，且均可选择所有的量测功能(vrms, arms, vrms, pf, va, var, hz)
6.具有电压三段、电流三段及瓦特九段的输入档位选择
7.自动保存关机前之设定状态，开机后自动回复原先设定
8.输入电流峰值超过档位警告
9.具有pt与ct比例乘算功能(0.0010 至 1000.0之间)
10. 各显示器皆具有独立的比较器功能设定
11. 具有面板功能设定的储存与唤回功能
12. 具有显示频均功能
13. 显示保留功能
14. 提供标准rs-232c接口
产品规格
input range
item
voltage
current
input circuit type
resistive voltage divider
shunt input
rated input (range rms)
30/300/600v
30ma/300ma/3a
input impedance
approx. 1mw
approx. 66.7 mw
max. input (at 50/60hz)
600vrms
3arms/ 9apeak
range se-lection
manual or auto with led indicated
a/d conversion
4 1/2 digits adc
input filter
1khz low pass filter
input terminal
screw terminal
measurement function
item
voltage / current
effective power
frequency range
10hz to 20khz
crest factor
“3” at rated input
operating principle
true rms
analog multiplier circuit
display accuracy
10hz to 45hz
45hz to 66hz
66hz to 2khz
2khz to 10khz
10khz to 50khz
0.15% of rng + 0.2% of rdg
0.1% of rng + 0.1% of rdg
0.1% of rng + 0.1% of rdg
0.15% of rng + 0.2% of rdg
0.15% of rng + 0.2% of rdg +( 0.3%＊(f-10khz))
0.2% of rng + 0.2% of rdg
0.1% of rng + 0.1% of rdg
0.12% of rng + 0.1% of rdg
0.15% of rng + 0.2% of rdg+( 0.3%＊(f-2khz))
0.15% of rng + 0.2% of rdg +( 0.5%＊(f-10khz))
effective input range
5% to of set range
temp. coefficient
±0.05% of range/℃
display up-date rate
3.3 times/sec
display digits
4 1/2 digits (20000 counts)
full 4 digits (10000 counts)
frequency measurement function
operating principle
reciprocal counting method
display digits
full 5 digits display on each frequency
display range
10.000hz ~ 20.00khz
display resolution
1mhz to 10hz
display accuracy
0.06% + 5d
frequency range
10hz to 20khz
measurement range
5% to of range
computer function
item
wrms
va
var
pf
computation
w
va=v＊a
var=√(va)2– (w)2
pf=w/va
computation range
depends on the se-lected v and a range
-1 to 0 to 1
maximum display
9999
9999
9999
±1.000
general specification
interface : standard rs-232 interface, data transfer rate only 9600 bps.
power supply : ac115v/230v±10%, 60/50hz switch se-lectable
warm-up time : approx. 30 min.
operation humidity/temperature range : 80% r.h. (+5℃ to 30℃), 50% r.h. (+31℃ to 40℃)
storage temperature/humidity range : -10 to 70℃, <80% r.h.
dimensions : 213(w) x 88(h) x 394(d) mm
net weight : approx. 3.6 kg
accessories : power cord x1, operation manual x1