Ionization Test Kit
数学作业评语Description
The Desco Ionization Test Kit allows the 19492 Digital Static Field Meter to be ud to measure the offt Charged insulators in the ESD protected area can adverly impact quality, productivity, and reliability.“When any object becomes electrostatically charged, there is an electrostatic field associated with that charge. If an ESDS (ESD nsitive) device is placed in that
Figure 1. Desco 19493 Ionization Test Kit
FRONT VIEW
BACK VIEW
Figure 2. Digital Static Field Meter features and
BACK VIEW
Figure 3. Charger features and components
18"
12"
Figure 5. Auditing ionization equipment with the Digital
Static Field Meter and Conductive Plate (Ref: ANSI/ESD Figure 4. Installing the 19498 Conductive Plate
Thousands
Hundreds
Tens
Figure 6. Reading the Digital Static Field Meter while in the ±20 kV range
Hundreds
Tens
Ones
Figure 7. Reading the Digital Static Field Meter while in the ±2 kV range
Per ESD TR53-2006 Compliance Verification of ESD Protective Equipment and Materials Air Ionizer Test Procedure Initial Test Setup “Measurements should be
NEGATIVE DISCHARGE TIME MEASUREMENTS
To provide a NEGATIVE voltage output, touch the plate located underneath the Charger, and press the switch downward at the same time. Momentarily touch the Charger’s output terminal to the conductive plate attached to the Field Meter. The meter reads approximately -1.10 kV. By using a stop watch or other timing device, determine the time needed for the voltages to decrea from -1.10 kV to -0.10 kV. This is the negative discharge time.
IMPORTANT: A ground path must be provided between the touch plate of the Charger and the ground reference of the Field Meter. This is normally provided by holding the Charger in one hand and the Field Meter with Conductive Plate in the other.The battery in the Charger should be replaced annually or when it is unable to provide approximately ±1100V. CLEANING
It is important to keep the insulators on the adapter plate clean and free of contaminates that may ca
u surface leakage. To test the performance of the adapter plate, charge the plate and note the discharge rate in a nonion-ized area. The lf discharge rate to 10% of original voltage should not be less than five minutes.
The area around the aperture of the Digital Static Field Meter must be kept clean to ensure accurate, drift-free readings. Never touch the aperture with anything. To remove dust or other particulate matter, u low-pressure instrument-grade air. To remove more vere contamination, spray or flush with the smallest practical amount of clean technical-grade of isopropyl alcohol. Then allow the instrument to air dry for veral hours. Specifications
DIGITAL STATIC FIELD METER
Measurement Range (switch lectable)
Low Range: 0 to ±1.99 kV / inch
High Range: 0 to ±19.99 kV / inch Measurement Accuracy
Voltage Monitor Output: > ±5% of reading ±10 mV Voltage Display: > ±5% of reading ±2 counts Measurement Stability
±10 counts
Automatic Shutoff
Unit will shut off after 20 minutes after last switch activity Power Requirements
灵活就业补贴One (1) 9V alkaline battery
Operating Time
Greater than 50 hours, with new battery at 21°C continuous usage
Operating Conditions
Temperature: 10-30°C
Relative Humidity: Up to 80%, non-condensing Altitude: Up to 2,000 meters Dimensions
0.94" H x 2.75" W x 4.94" L
(23.9mm H x 69.9mm W x 125.5mm L)
唐人街探案张子枫Weight (with battery)
抵罪
苏联解体原因4.9 oz
(153 g)
Voltage Monitor Connection
2.5mm audio jack
CE Certified
Figure 8. Taking decay measurements
Maintenance死去的太阳
The Digital Static Field Meter is factory calibrated and no maintenance is required. If for any reason you believe the Meter is not working correctly, plea contact Desco Customer Service. CAUTION - There are no ur rviceable parts. Any unauthorized rvice will void the warranty and result in additional repair charges.
Note: This Meter is a precision instrument and should not be subjected to dropping as that would void the warranty.
BATTERY REPLACEMENT
The Digital Static Field Meter operates from a standard 9 VDC alkaline battery. Battery life is in excess of 50 hours under normal u. When the battery voltage drops below 6.5 V, “BAT” will appear on the display. To change the battery, slide the battery cover down at the back of the Meter and remove the battery from the battery clip. Replace the battery with a fresh one and reinstall the battery cover. The battery should be removed from the Meter if its is to be stored for an extended period of time.
Limited Warranty
Desco expressly warrants that for a period of one (1) year from the date of purcha Desco Ionization Test Kits will be free of defects in material (parts) and workmanship (labor). Within the warranty period, a credit for purcha of replacement Desco Ionization Test Kits, or, at Desco’s option, the Ionization Test Kit will be repaired or replaced free of charge. If product credit is issued, the amount will be calculated by multiplying the unud portion of the expected one year life times the original unit purcha price. Call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for a Return Material Authorization (RMA) and proper shipping instructions and address. Plea include a copy of your original packing slip, invoice, or other proof of date of purcha. Any unit under warranty should be shipped prepaid to the Desco factory. Warranty replacements will take approximately two weeks.
If your unit is out of warranty, call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for a Return Material Authorization (RMA) and proper shipping instructions and address. Desco will quote repair charges necessary to bring your unit up to factory standards.
Warranty Exclusions
THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF ALL OTHER PRODUCT WARRANTIES, EXPRESSED AND IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY
DISCLAIMED. The express warranty will not apply to defects or damage due to accidents, neglect, misu, alterations, operator error, or failure to properly maintain, clean or repair products.
Limit of Liability
In no event will Desco or any ller be responsible or liable for any injury, loss or damage, direct or conquential, arising out of the u of or the inability to u the product. Before using, urs shall determine the suitability of the product for their intended u, and urs assume all risk and liability whatsoever in connection therewith.
CHARGER Output
1100 VDC nominal, < 5 μA max Output Terminal
倒字开头的成语
Banana / Acorn asmbly Power Requirements One (1) 9V alkaline battery
海底漫步
Operating Conditions Temperature: 10-30°C Relative Humidity: 10-80%, non-condensing Dimensions
4.5" L x 2.6" W x 1.1" H
(114.3mm L x 66.0mm W x 27.9mm H)Weight (with battery)4.9 oz (153 g)CE Certified
CONDUCTIVE PLATE Plate Capacitance 13 pF (± 2 pF)Range 0 to ± 2 kV Weight 2.4 oz (75 g)
