Unit UT-P41 Manuale utente
■UT-P30
■UT-P41
INSTRUCTION MANUAL
使用說明書
UT-P41 AC/DC currentprobe
UT-P41
交流/直流 電流探測鉗
1
SUMMARY / 目录
1、简述................................1
2、规格................................2
3、操作环境及状况......................4
4、操作程序............................4
5、产品维护............................5
1、Presentation........................6
2、Specification.......................7
3.Operating environment................8
4、Operation.......................... 8
5、Maintenance.........................9
2
一、简述
UT-P41 是一款使用霍尔效应技术测量 AC/DC 电流，无
需修改安装（无需断开电路）的钳式电流探头。 可
测量 50mA 至 100A 的电流。
两个亮灯指示：
- “ON" 表示供电正确
- ”OL“ 表示超负荷的使用（饱和或者达到峰值）
此外有一个自动归零档位以便电流钳适用于不同环
境。
此电流钳可跟任何有 BNC 接口的，且阻抗为 1MΩ,﹤
100pF 的测试仪器一起使用。
3
量程
100mV/A
10mV/A
电流量程
50mA-10A 峰值
10A-100A 峰值
输出信号百分误差
3%±5mV
500m-10A 峰值：4%±500uV：
10-100A 峰值：100A 时最大 15%
频率范围（-3dB）
DC~100kHz
相移
DC~65Hz：
<1.5°
DC~65Hz：<1°
负载阻抗
≥1MΩ和≤100pF
插入阻抗
0．01Ω
噪声
6mV
600μV
转换速率
0.3V/μS
20mV/μs
上升/下降时间
3μs
＜4μs
测量条件
23℃±5℃,20~75%RH,正弦频率 48~65Hz,外磁场
<40A/m，附近无载流线，中心测试样本，负载阻
抗 1MΩ
电池
9V 碱性电池(符合 NEDA 1604A,IEC 6LR61)
低电池指示
当>6.5V 时,LED 为绿色
过载指示
红色 LED 指示测量电流太大，需要改变量程
最大鄂中插入
直径 11.8mm
尺寸
231×36×67mm
重量
330g （含电池）
输出
2 米同轴电缆，终端带有绝缘 BNC 插座
二、规格
4
三、操作环境及状况
1.操作温度：0～+50℃
2.保存温度：-3～+80℃
3.操作相对湿度：
+10℃～+30℃：85±5%相对湿度（无冷凝）：
+40℃～+50℃：45±5%相对湿度（无冷凝）
4.操作高度：0~2000
四、操作程序
1. 要启动电流测试钳，把开关移至 100mV/A 档位。
检查确认电池绿色指示灯是亮的，<OL>不亮。
2. 连接电流钳到示波器上。
3. 在电流钳已关闭，但没有夹紧导体的情况下。
示波器上选择最高灵敏度（例如 1mV/cm），电
流钳选择 100mV/A 。
4. 在关闭电流钳并没有导体的情况下,选择示波器
和电流钳上最高的灵敏度(例如：1mV/cm),然后转动电
流钳零位按钮，示波器相应归零，这使得示波器可以
适应所做的位置。
5. 电流钳和示波器选择好测试敏感度。
6. 选择最适合测量的连接电流钳到示波器上的方式。
5
注意！箭头显示方向表示电流从正极到负极的流动
方向。
电流钳钳住要测量的电流导体，开始测量。
如果有必要，可对电流进行二次测试，测量时，钳口
不要过度夹紧导体。
五、产品维护
维修此产品，请使用指定的工具。如果由不合
格维修人员以及使用非指定工具所做的维修而
造成的机器损坏，本公司将不负任何责任。
■ 钳口表面:需经常保持钳口表面干净、清洁。为避
免生锈，可在钳口表面轻抹一层油，不要让电流钳
经常处于潮湿的环境，或直接与水接触。
■ 清洁处理：用通过肥皂水清洗过的清洁布或海绵
轻轻搽试，然后用干燥清洁布搽干或置于通风处晾
干。为保证电流钳的性能，建议每年进行一次检查
或校准。
6
1. PRESENTATION
The UT-P41 clamp is a current probe for oscilloscope
which uses a Hall effect cell for the measurement of
DC or AC current without modification of the
installation(without switching off the circuit).
It can measure currents from 0.2A to 100 A peak.
It has 2 ranges and 2 lights indication:
-“ON”,correct power supply to the clamp.
-“OL”,overload of the range in use (saturation or
peak).
In addition a thumbwheel can be used to reset zero for
adaptation to the measurement environment.
This clamp adapts to allow measurement instruments
which have a BNC input and an impedance of 1MΩ,﹤
100pF.
7
2. SPECIFICATION
Model
UT-P41
Bandwidth
100KHz
Accuracy
2%
Current range
0.2A-10A,10A-100A
Ratio
10mV/A,100mV/A
Working voltage
600V
Low power
When＞6.5V,green LED
Over-load
Red LED,use another range or model
Working Temp.
0°C to + 50°C /(+32°F to + 122°F)
Storage Temp.
-20°C to + 80°C/ (-4°F to 176°F)
Humidity
0°Cto40°C, 95%/ 40°C to 50°C, 45%
Clamp Dia.
11mm
Cable length
2m
Demision
231x67x36mm
Weight
330g(including battery)
Power supply
9V battery
8
3. Operating environment
1). Operating.Temp：0～+50℃
2). Storage.Temp：-3～+80℃
3). Operation relative humidity：
+10℃ ～ +30℃：85±5% relative humidity
（non-condensing）：
+40℃ ～ +50℃：45±5% relative humidity
（non-condensing）
4). Operating height：0~2000m
4. Operation
1). To make a current measurement,switch on the clamp
by selecting the 100mV/A range.Check that the battery
indicator(green)is lit and that the <<OL>>indicator is
not lit
2). Connect the clamp to the oscilloscope
With the clamp closed and without clamping a
conductor,select the highest sensitivity(for example
1mV/cm)on the oscilloscope and 100mV/A on the
clamp ,then set zero on the clamp with the thumbwheel
in relation to a reference chosen on the
oscilloscope.Zero on the oscilloscope makes it possible
to adjust this setting.
3). Select the measurement sensitivities of the clamp and
the oscilloscope
4). Choose the connection method which is the best
adapted to measurement on the oscilloscope
5). Note the direction of the primary current by means of
9
the arrow marked on and under the case .
6).Insert the conductor carrying the current to be
measured in the clamp and take the measurement.
7). If necessary, re-check the origin of the graph,with the
jaws not clamped around the conductor,and make the
measurement again.
5. MAINTENANCE
For maintenance,please kindly contact the
reseller or manufacturer..The manufacturer
will not be held responsible for any accident
occurring following repair done other than by
its After Sales Service or approved repairs.
Jaw faces:It is necessary to always keep the jaw
faces clean. Clean them and lightly oil them to
avoid rust.Do not leave the clamp in very damp
places, or directly exposed to water.
Handles and case:Clean with a cloth or a sponge
soaked with soapy water,rinse in the same way
without ever getting water on the clamp.Dry with a
cloth or in an air flow.
To maintain the performance of the clamp,it is
advisable to carry out a check or recalibration every
year.
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