可程式微欧姆计3245
时间:2007-07-09 阅读:620
3245可程式微欧姆计采用微处理器控制并使用4-1/2位模拟数字转换器,提供高稳定性,高精度之微欧姆量测。具有3个数字显示器可同时显示读值、hi limit、lo limit,并且配备标准rs-232c接口使您在使用上得心应手。
本产品可广泛地应用于各种低电阻的量测,不论是各种线材、线圈、变压器、马达、磁头、分流器的内阻测试、开关、连接器、继电器、接线端子的接触电阻量测还有电阻制造业与电工器材设备制造业等都可使用。
产品特点:
1. 使用3个数字显示器可同时显示读值、hi limit、lo limit
2. 读值使用4 1/2位大型(0.5英吋)七段显示器
3. 使用4 1/2位模拟数字转换器提供高准确度的量测
4. 手动或自动换档选择
5. 提供hi/lo/go与buzzer比较功能
6. null功能
7. 每秒高达10次攫取速度,并提供可选的攫取速度设定
8. 提供1安培测试电流,可量测到1μω分辨率
9. 标准rs-232c接口
10. 提供四组面板设定储存与唤回功能
11.自动保存关机前之设定状态,开机后自动回复原先设定
产品规格
model | 3245 programmable milli-ohm meter | ||||||||
measurement | |||||||||
range | 20mω | 200mω | 2ω | 20ω | 200ω | 2kω | 20kω | 200kω | 2mω |
current | 1a | 100ma | 100ma | 10ma | 1ma | 1ma | 100ua | 10ua | 1ua |
accuracy | 20mω: ±0.1%rdg. ±10dgt. 200mω: ±0.08% ±10dgt. 2ω-20kω : ±0.05%rdg. ±7dgt. 200kω : ±0.1%rdg. ±7dgt. 2mω : ±0.1%rdg. ±15dgt. | ||||||||
voltage | 20mv to 2v dc | ||||||||
display | 19999 (4-1/2 digits) led | ||||||||
method | 4-terminal method | ||||||||
sampling rate | fast (10times/sec), slow (2times/sec) | ||||||||
general function | |||||||||
compare | hi/go/lo led display with buzzer on/off setting | ||||||||
open circuit terminal voltage | approx. 6v | ||||||||
null function | display value = reading value – ref. value | ||||||||
range se-lection | manual or automatic | ||||||||
hold function | can hold display value with led indicate | ||||||||
display | 7-segment red led 0.52” | ||||||||
compare display | 7-segment red led 0.31” | ||||||||
general specification | |||||||||
interface : standard rs-232 interface, data transfer rate only 9600 bps. | |||||||||
power supply : ac115v/230v±10%, 60/50hz switch se-lectable | |||||||||
power consumption : approx. 45va on 20mω test range, other range approx. 25va | |||||||||
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 : 3.6 kg | |||||||||
accessories : power cord x1, operation manual x1, test lead x1 |