交流电流钳型号D38N （通用电流钳）
Clamp-on AC current probe Models D38N (Insulated current probe)

型号D38N是一个输出电压信号的高度精确的交流电流探头，在示波器上直接测量读数。
手柄上有一个3档开关进行范围选择。
宽大的钳口开度可以测量电缆和小线排。

电气参数Electrical specifications
电流范围Current range:
1...30 A AC (90 Acc)
1...300 A AC (900 Acc)
1...2400 A AC (9000 Acc)
(3000 A if the temperature < 35°C)
输出信号Output signal::
10 mV/A AC (0.3 V to 30 A)
1 mV/A AC (0.3 V to 300 A)
0.1 mV/A AC (0.3 V to 3000 A)
精度Accuracy (1):
30 A range

300 A range 

3000 A range 

安秒值 Amps.Seconds product: 90 A.s
dV/dt:
30 A range : 0.3 mV/μs
300 A range : 3 mV/μs
3000 A range : 30 mV/μs
负载电阻 Load resistance:≥ 1 MΩ et ≤ 47 h
操作电压Operating voltage:600 V AC
通常模式电压 Common mode voltage:600 V AC
相邻和并行导体的影响 Influence of adjacent conductor:0.005 A/A AC
导线在钳口内位置的影响 Influence of conductor positioning in jaws:1% of reading ± 0.1 A
频率影响 Frequency influence: From 10 Hz to 10 kHz: 1 dB on all the ranges

机械参数Mechanical specifications
操作温度Operating temperature:
-15 °C to +50 °C
存储温度Storage temperature:
-40 °C to +80 °C
温度影响Temperature Influence:
< 0.1% for every 10°K 
开口尺寸Max. jaw opening:
90 mm
钳口夹持能力Max. clamp jaw insertion capacity:
线缆Cable : Ø max 64 mm
导线组group of wires: 50 x 135 mm - 64 x 100mm
防护等级Casing protection:
IP20(IEC529 )
跌落测试 Drop test:
500mm (IEC 68-2-32)
冲击保护Shock protection:
100 g (IEC 68-2-27)
抗振性Vibration resistance:
10/55/10 Hz, 0.15 mm test followingIEC 68-2-6
阻燃能力Self-extinguishing capability:
外壳 Casing: UL94 V0
钳口 Jaws: UL94 V2
尺寸Dimensions:120 x 315 x 48 mm
重量Weight: approx. 1200 g
颜色Colours: 深灰色壳体和红外钳口 Dark grey case with red jaws
输出Output:
2m长带绝缘BNC头的同轴线缆（600 Vrms）。
2m Coaxial lead with insulated BNC plug (600 Vrms)

安全规范 Safety specifications
电气安全 Electrical safety:
仪器在主导体、附属层、外壳间采用双重绝缘，遵循以下标准
Double or reinforced insulation between the primary and secondary circuits and the outer casing in accordance with IEC 1010- 2-032.
- 600 V category III, pollution degree 2
- 300 V category IV, pollution degree 2

电磁兼容性 Electromagnetic compatibility:
EN 50081-1: class B
EN 50082-2:
- Electrical discharge IEC 1000-4-2
- Radial Field IEC 100-4-3
- Rapid Transients IEC 1000-4-4
- Magnetic field to 50/60 Hz IEC 1000-4-8

(1)参考条件：23°C±5°K，相对湿度20％至75％，频率为48赫兹到65赫兹，外部磁场<40 A/ m时，无直流分量，没有交流磁场，测试样品中心。
Reference Conditions : 23°C ± 5°K, 20 to 75% RH, 48 to 65 Hz, external magnetic field < 40 A/m, no DC component , no current carrying conductor close by, centred test sample