DESCO 19494 thiết bị kiểm tra hiệu suất của các thiết bị khử tĩnh điện

The Desco 19494 Portable Charged Plate Monitor (CPM) is used as a handheld meter to periodically verify the performance of air ionizers by measuring their offset voltage and discharge times in electrostatic protected areas.

• Measuring Ionizer Performance: The primary function is to assess the ability of air ionizers to neutralize both positive and negative electrostatic charges within their coverage area.
• Determining Discharge Times (Decay Rates): The integrated timer measures how quickly a charge on its insulated plate is reduced from a high voltage (specifically ±1000V to ±100V) when exposed to the ionized air stream.
• Checking Offset Voltage (Balance): It measures the balance of ions produced by the ionizer, ensuring that it does not create a harmful net charge that could damage sensitive electronic components.
• Compliance Verification: The device is designed to perform measurements in accordance with industry standards such as ANSI/ESD SP3.3, ESD TR53, and IEC 61340-4-7, which are crucial for maintaining a safe electrostatic protected area (EPA).
• Mobile Testing: Its compact, battery-operated, and lightweight design, along with a 180-degree rotary head, makes it ideal for use in various industrial settings and hard-to-reach areas where static control is essential.

[embedyt] https://www.youtube.com/watch?v=WVa-NkMiYrg[/embedyt] The Desco 19494 Portable Charged Plate Monitor features a measurable potential range of 0 to ±1999 V, measures decay times from ±1000V to ±100V, and has a 180-degree rotary head. Made in Japan.

Specifications

• Measurable Potential Range: 0 to ±1999 V
• Voltage Measurement Resolution: 1 V
• Measurement Accuracy: ±10% reading ±2 digits
• Decay Rate Measurement Range: Timer for decay rates from ±1000V to ±100V (adjustable to ±1000V to ±50V)
• Measurement Time Range: 0.0 to 99.9 seconds
• Display Refresh Frequency: 0.2 seconds
• Signal Detection Method: Oscillating chopper method
• Static Electricity Capacity: 20 pF ± 2 pF 

• Dimensions: 2.8 in. x 1.2 in. x 6.9 in. (70 mm x 30 mm x 174 mm)
• Weight: 8 oz (240 g) including battery
• Plate Dimensions: 2.75 in. x 1.25 in. (70 mm x 32 mm)
• Sensor Head Rotation: 180° (stops every 45°)
• Power Source: 2 x AA alkaline batteries
• Continuous Operating Limit: Approximately 6 hours
• Display Type: LCD 

Maintenance and calibration :  ► We also have calibration certificate attached ( optional ) ► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI Ins DISTRIBUTED BY: Semiki instrumentation Co., Ltd Email:  sales@semiki.com Office tel: +84 28 2253 3522 ~DOING OUR BEST FOR YOU~