品牌：美国monroe (门罗)
主要规格/特殊功能:
可移动的电缆连接的平板，便于准确定位的远距离监测
独立的时间和电压显示，便于衰减速率的分析
记录仪输出便于记录或其它操作
从0-5kv有两个量程
生动演示感应起电和人体电位
正常工作模式为室内和台式、平板或离子风枪或喷嘴离子风消电器提供静电衰减时间和离子平衡监测
峰值模式为脉冲直流离子风消电器监测电压峰值的极性
平板与测试电路的总电容：20+/-2pF
平板自放电速率：<10%设置电压(5分钟内）
大小：15.2X15.2cm
测试电源：
最大输出：+/-6000V
平板可充电电压 +/-1000V和+/-5000V, 0-5000V可调
静电场强表：
可选量程：0- +/-5000V, 0- +/-2000V
准确度：2%
漂移：<0.4%/小时，10分钟稳定后无积累
响应速率：<100ms 10%-90%
带宽：6Hz
输出：1/1000平板电压
记时器：
范围： 1.0 kV/100 V or 5.0 kV/500 V （用户选）
最大计时时间：999.9 sec (16 minutes +)
整机：
大小：(17 x 17 x 24cm)6x 6x 9inches
电源：220V／50HZ。
重量：2.3kg
Charge Plate Analyzer 268A
Features:
• Easiest, most reliable way to check
effectiveness of all ionization-type
static control systems
• Meets ESD Association Standard No.3
• Removable, cable-connected plate/
probe permits precise positioning and
remote monitoring
• Separate time and voltage displays for
decay rate analysis
• Recorder output for permanent
records and unattended operation
• Two ranges measure from 0 to ±5kV
• Dramatically demonstrates induced
charges and human body potential
Make sure antistatic devices are working
Wrist straps, work surfaces, flooring materials —
static decay measurement is a sure indication that
they’re doing their job. The plate has a connector to
permit measurement of charge buildup on operators.
Easy to use
To operate in discharge mode:
1. Locate the removable plate/probe where
ionization is to be checked, main instrument
where convenient.
2. Turn the instrument on and select test parameters
(mode, polarity, voltage range, and upper and lower
voltage limits across which the decay rate is to be
measured.
3. Press ZERO to ground the plate, then press
CHARGE to bring the plate to the preselected
maximum voltage.
4. Press DECAY, as the ionization system
neutralizes the plate charge, the instrument will
continuously measure the decaying voltage.
Elapsed time (in seconds) is displayed on the front
panel, along with plate voltage. The speed at which
the voltage drops is proportional to ionization
system performance.
Measurement in the peak mode is just as simple.
Model 268A-1T adjustable timer option
This option allows the user to set the timer stop
voltage at any level from 0 V to 1000 V. The start
voltages remain the same.
Evaluate all ionization systems and
anti-static devices – and demonstrate
charge presence
Two operating modes cover all types of ionization
systems.
For room and table-top ionization systems,
laminar flow hoods, and air guns and nozzles the
normal (discharge) mode provides both static decay
timing and system balance monitoring.
For pulsed DC ionization systems the peak
mode monitors voltage swings by reading and holding
the peak voltage and polarity (positive or negative)
sensed on the charged plate/potential.
Specifications subject to change without notice. | Printed in USA | Copyright© 2002 | Monroe Electronics Inc. | 268A ds 083106.p65