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基礎信息Product information
產品名稱：Static Monitor靜電電位電量
產品型號：JCI140
更新時間：2024-08-18
產品簡介：
JCI-140英國Chilworth靜電測試儀Static Monitor Static Monitor靜電電位電量2檔電位量程: 2kV, 20kV （JCI-140/140F）; 20kV, 200kV （JCI-140XF）2檔電量量程: 2nC, 20nC （JCI-140/140F）; 20nC, 200nC （JCI-140XF）
產品特性Product characteristics
中國電子行業儀器優質供應商——堅融實業JETYOO INDUSTRIAL & 堅友(上海)測量儀器JETYOO INSTRUMENTS，專業為中國區用戶提供Static Monitor靜電電位電量儀器設備、技術培訓與售后維修服務，Support、銷售Sale、服務Service，3S公司，為上海華東地區一家以技術為導向的儀器綜合服務商，是您值得信賴的電子行業儀器專家。
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JCI140靜電測試儀Static Monitor靜電電位電量
2檔電位量程: 2kV, 20kV (JCI-140/140F); 20kV, 200kV (JCI-140XF)
2檔電量量程: 2nC, 20nC (JCI-140/140F); 20nC, 200nC (JCI-140XF)
分辨率: 1V (2kV量程), 10V (20kV量程)
測試距離: 100mm
測量精度: +/-2% FSD
可測試連續變換電壓
信號輸出萬用表, 可測試50/60Hz交流電場
3 1/2LCD液晶顯示, 低電池指示
純鋁外殼, 有效屏蔽外部信號干擾
尺寸: 150*66*34mm, 320g
品牌: JCI
制造商: Chilworth Technology Ltd
產地: 英國
訂購編號: 描述:
JCI-140 標準型, 頻率響應: -3dB@120Hz
JCI-140F 快速型, 頻率響應: -3dB@400Hz
JCI-140XF 快速大量程型, 頻率響應: -3dB@400Hz
量程: 20kV; 200kV
選配:
JCI-148 轉換探頭, 接觸式測量導體靜電壓或高壓輸出裝置
JCI-147 配套法拉第桶, 測試靜電荷量
JCI-140靜電測試儀性能特點
JCI-140/140F可以非接觸地測量物體表面靜電位，測試距離為100mm，2擋量程可選：0～+/-2kV和0～+/-20kV。2kV量程，分辨率1V；20KV量程，分辨率10V。
儀器外殼為純鋁材料，可以屏蔽外部干擾信號。3位半LCD屏幕顯示讀數和極性，測量單位為kV。超出量程蜂鳴報警聲提示。
JCI-140/140F具有穩定快速的測試特點，可進行連續測試，測試精度為+/-2% FSD。
JCI-140 的頻率響應為-3dB@120Hz，因此可以測量極性變化的電位（例如交流電場）；JCI-140F具有更高的頻率響應-3dB@400Hz。儀器采用干電池供電，也可采用外接電源適配器（選配）。電量不足時，LCD顯示屏自動顯示“LO BATT”。
JCI-140/140F具有模擬信號輸出端口，可以提供+/-2V輸出信號給紙圖記錄儀、萬用表或示波器。
JCI-140/140F 測試儀配合JCI-147 法拉第桶可以測試物體靜電荷量，量程：0～+/-2nC和0～+/-20nC，分辨率1pC（2nC量程）。
JCI-140/140F測試儀配合JCI-148轉換探頭可以接觸式測量導體靜電位或高壓電源輸出電壓，量程：0～+/-2kV和0～+/-20kV，分辨率1V（2kV量程）。
JCI-147法拉第桶可以直接安裝在JCI-140/140F測試儀上，JCI-140/140F測量內桶外壁的靜電位，然后乘以法拉第 桶的電容得到靜電荷量。JCI-140/140F探測頭位置距離法拉第桶經過校準設置，所以儀器讀數直接 為靜電荷量（單位nC），測試精度+/-5% FSD
JCI-147法拉第桶內桶尺寸：
直徑：50mm
高度：70mm
JCI-148轉換探頭可以直接安裝在JCI-140/140F測試儀上。轉換探頭內部有一個電容很小（7pF）的等電位金屬片，通過配套測試線連接被測試物體，儀器顯示被測試物體靜電位。
JCI-148轉換探頭外殼為純鋁，可以屏蔽外部干擾信號，測試泄漏電阻大于10·14Ω。
測試精度+/-2% FSD
Benefits
- Indicates surface voltage
- Resolution to 1V & full scale 20kV (standard version, used as per manufacturer’s
instructions)
- Extended range available for higher voltages
- Fast version available for high frequency AC fields (-3dB at 400Hz)
- Field mill technology avoids the zeroing required for Induction Monitors.
Including the JCI 140F, JCI 140X and JCI 140XF
JCI 140 Field Mill Static Monitor
The JCI 140 is a compact instrument for easy detection and measurement of static electricity and
for assessment of risks in practical situations.
General Description
The JCI 140 Static Monitor is a compact, easy to use instrument for direct non-contact
measurement of surface voltage. It is available in 3 options: F – Fast Response, X – Extended
Range & XF - Fast Response Extended Range. From a distance of 100 mm the 3½ digit liquid
crystal display indicates surface voltage to an accuracy of 1 Volt. This makes it particularly easy
to find even low levels of static charge and to make measurements with confidence.
As a field mill instrument there is no need to switch-on in a static free environment, no need
for measurements to be made within a limited time and no need to worry about the influence
of air ionisation – which are all concerns with simple ‘induction probe‘ type instruments. The
novel mode of operation of the JCI 140, with no earthing of the rotor (the instrument must still
be earthed), provides quiet, stable operation with fast response and long operational life.
The JCI 148 and JCI 146 are compatible modular voltmeter adapters for use with the JCI 140.
Both instruments allow direct measurement of voltages on live conductors using a probe. The
JCI 140, when used with the JCI 148, can measure voltages up to 20kV dc and the JCI 146
can measure voltages up to 60kV dc. The very high input resistance of these systems eliminates
the loading effects suffered by many high voltage voltmeters and high voltage adapters for
multimeters. The JCI 147 is a compatible modular Faraday Pail adaptor for use with the
JCI 140. It allows direct measurement of charge (in nano Coulombs) on items placed in the
Faraday Pail.
Specification
Ranges: 2kV & 20kV full scale
1V and 10V resolution at 100mm
(20kV & up to 50kV for JCI 140X / XF, with precautions as per the
manufacturer‘s instructions)
Response: -3dB at ~120Hz for standard JCI 140
-3dB at ~400Hz for JCI140F
Zero Stability: Within ±10V on 2kV range
Accuracy: Within ±2% FSD
Linearity: Within ±1% FSD
Display: 3½ digit LCD indicating surface voltage in kilovolts at 100mm with polarity
and ‘LO BATT‘ indication
Audio alarm: Pulsing audio output when reading above user set alarm level
Signal outputs: Via 8 pin miniature DIN socket
Power Supply: PP3 Battery or JCI142 external mains adapter
Dimensions: 34x66x150mm overall. Weight: 320g.
Accessories & Services
JCI 143 Analogue Output Cable
JCI 142 External Mains Adapter
JCI 169 Permanent Mounting Feet
Digial USB Oscilloscope & Data Logger
Calibration to BS7506: Part 2:1996
JCI 125 Zero Check Chamber
Compatible Modular Instruments
JCI 148 Electrostatic Voltmeter
JCI 147 Faraday Pail
Benefits
- Measures voltage on conductors with near zero current drain
- High level of accuracy
- Measurements up to 20kV
- Simple quick release mechanism for mounting the JCI 140 unit.
JCI 148 Electrostatic Voltmeter Adapter
Compatible with JCI 140 Static Monitor
The JCI 148 can be used for accurate measurement of voltages with negligible current
drain.
General Description
The JCI 148 Electrostatic Voltmeter comprises a shielding enclosure in which an electrode,
connected to the input, is supported by high quality insulation in a well-defined and stable
geometric arrangement relative to the sensing aperture of a JCI 140 Static Monitor.
The geometry is such that the numbers shown on the display correspond directly to the
applied voltage input in kV.
The attraction of an electrostatic voltmeter based on the JCI 140 Static Monitor is the
near zero current drain (limited only by insulation leakage not less than 10
14
Ohms at up
to 20kV), the high sensitivity (1V resolution in 2kV range), the low internal capacitance
(about 7pF), high input time constant and the linearity of response.
JCI 148 – Electrostatic Voltmeter Adapter
Specification
Ranges: 2kV & 20kV full scale. 1V and 10V resolution
Accuracy and linearity : Within ±2% FSD on JCI 140 display and analogue output signal
High voltage connection: Special JCI HV protective connector
Maximum safe voltage: ±25kV
