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DUAL DISPLAY MULTIMETER
USER'S MANUAL
CAUTION
THIS IS AN IEC SAFETY CLASS
1
PRODUCT. THE GROUND WIRE IN THE LINE CORD MUST BE
CONNECTED FOR SAFETY.
WARRANTY
Our company warrants to the original purchaser that each product it manufactures will be free from defects in
material and workmanship under normal use and service for a period of one year from date of purchase. Our
company's warranty does not apply to fuses, test leads or any product which, in our company's opinion, has been
misused, altered, or damaged by accident or abnormal conditions of operation or handling.
To obtain warranty service, contact the nearest Service Center or send the product, with a description of the
difficulty, and postage prepaid, to the nearest Service Center. We assume no risk for the damage in transit. We will,
at its option, repair or replace the defective product free of charge or refund your purchase price. However, if we
determine that the failure was caused by misuse, alterations, accident or abnormal condition of operation or
handing, you will be billed for the repair and the repaired product will be returned to you transportation prepaid.
SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT
All shipment of our company's instruments should be made via United Parcel Service or "Best Way" prepaid. The
instrument should be shipped in the original carton; or if it is not available, use any suitable container that is rigid
and of adequate size. If a substitute container is used, the instrument should be wrapped in paper and surrounded
with at least four inches of excelsior or similar shock-absorbing material.
CLAIM FOR DAMAGE IN SHIPMENT TO ORIGINAL PURCHASER
The instrument should be thoroughly inspected immediately upon original delivery to purchaser. All material in the
container should be checked against the enclosed packing list. The manufacturer will not be responsible for
shortages against the packing sheet unless notified immediately. If the instrument is damaged in any way, a claim
should be filed with the carrier immediately. (To obtain a quotation to repair shipment damage, contact the nearest
Service Center.) Final claim and negotiations with the carrier must be completed by the customer.
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Summary of Contents for Vichy VC8145A
- Page 1 DUAL DISPLAY MULTIMETER USER’S MANUAL CAUTION THIS IS AN IEC SAFETY CLASS PRODUCT. THE GROUND WIRE IN THE LINE CORD MUST BE CONNECTED FOR SAFETY. WARRANTY Our company warrants to the original purchaser that each product it manufactures will be free from defects in material and workmanship under normal use and service for a period of one year from date of purchase.
- Page 2 Section 1 Introduction INTRODUCING THE DUAL DISPLAY MULTIMETER In this manual, “WARNING” is reserved for conditions and actions that pose hazard(s) to the user; “CAUTION” is reserved for conditions and actions that may damage your meter. NOTE This manual contains information and warnings that must be followed to ensure safe operation and retain the meter in safe condition.
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Page 3: Getting Started
Safety Requirements for Electronic Measuring Apparatus. This manual contains information and warnings which must be followed to ensure safe operation and retain the meter in safe condition. Some common international electrical symbols used in this manual are shown below. ○ OFF(power) DANGEROUS SWITCH POSITION... -
Page 4: Adjusting The Handle
The rear panel (shown in Figure 2-2) contains the power-line cord connector, communication interface, the Serial Number Label. TO AVOID SHOCK HAZARD, CONNECT THE INSTRUMENT POWER CORD TO A POWER RECEPTACLE WITH EARTH GROUND. THERE ARE NO PARTS TO DISASSEMBLE, NO MECHANICAL ADJUSTMENTS TO MAKE, IT IS DISALLOWED TO OPEN THE CASE. -
Page 5: Taking Some Basic Measurements
For more details on the uses of each button, refer to Section 3, “OPERATION THE METER FROM THE FRONT PANEL.” SELECTING A MEASUREMENT RANGE Measurement ranges can be selected automatically by the meter in “autorange” or manually by the user. In the autorange mode, the meter selects the appropriate range for the measurement reading. -
Page 6: Operating The Meter From The Front Panel
at approximately 0.8mA. Readings are displayed in the 3V range at the fast measurement rates. “OL” is displayed for voltages above 2.0V. Under normal measurement condition, the positive pole of diode is connected with the black test lead. To perform a diode or transistor junction test, press select the diode function. -
Page 7: Input Terminals
These operations are described in remainder of Section 3. DISPLAY The meter has a 5-digit, Liquid Crystal Display (Primary Display) and a 4-digit, Liquid Crystal Display (Secondary Display). The display shows measurement readings, measurement units and messages. As shown in Figure 3-1. Calibration state Autorange Hold... -
Page 8: Manual Ranging
Table 3-2. Voltage, Current, Ohms and Frequency Rang and Full Scale Value FUNCITION RANG FULL SCALE INFORMATION 300mV 330.00mV *760V ac rms 3.3000V and V 33.000 V 300 V 330.00 V 1000V* 1100.0 V* and mA **AC current have not 0.3mA and 0.3mA** 0.33000 mA** 3mA range... - Page 9 selected range is displayed on the secondary display. MEASURING FREQUENCY ( FREQ ) Press the FREQ button to select the frequency function, the frequency is displayed on the primary display and the selected range is displayed on the secondary display. Select the rang manually or automatically Frequency Measurement Rates The rate at which frequency measurements are taken is selected by the meter automatically, when...
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Page 10: Hold (Touch Hold) Modifier
HOLD (Touch Hold) Modifier The Touch Hold modifier allows you to hold the measurement reading on the display. Press HOLD to select the Touch Hold modifier. When Touch Hold is selected, “HOLD” annunciator is lit on, and the beeper emits a single beep. Press HOLD again to exit Touch Hold modifier, and the beeper emits a single beep. -
Page 11: Selecting A Measurement Rate (Rate)
FUN. Modifier HOLD MNMX COMP Function √ √ √ √ Ω √ √ √ √ FREQ √ √ √ √ SELECTING A MEASUREMENT RATE (RATE) The meter takes measurements at one of two, user-selectable rates: slow and fast. The rate selected is indicated by “S”, “F”... -
Page 12: Maintenance
display. The value of setting is showed on the secondary display, then press to step up or down the setting value with 30S. The limit of the setting value is 3600S(1 hour), when the setting value is “0000” indicates that back light only be turned off manually. Press the HOLD save the set value, the “memory”... -
Page 13: Current Input Fuses
assembly near the power. The meter uses a 0.2A, 250V (Slow blow) line fuse. Carefully remove the fuse and replace it with one rated as listed above Reverse the disassembly procedure to reassemble the meter. CURRENT INPUT FUSES 300mA (include 300mA) and 10A inputs are protected by user-replaceable fuses. ... - Page 14 Select the Volts dc, Volts ac, Resistance or Frequency function and range on the meter and the input level from the 5520A. 10A FUSED NORMAL SCOPE The display should meet the request listed 1000V 750V TRIG in Section 6. 500mA 250V FAST FUSE ALL INPUTS...
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Page 15: Dc Volts Calibration
3mA, 30mA, 300mA 20~50Hz 0.09 50 Hz~1KHz 0.04 1~5KHz 5~10KHz 0.16 10~30KHz 0.32 50 Hz~5KHz FREQ 300Hz ,3KHz 0.00025 3MHz/30MHz 时用 VC5020 30KHz,300KHz 3MHz 30MHz AMBIENT ENVIRONMENT STATION Temperature: 23±2℃ Relative humidity: ≤70%RH Power : varied at 5% of rated voltage ... - Page 16 mode), and the meter default enter to 300mV DC volts calibration mode. Placed the standard equipment in the “STBY” state, and connected with the meter as shown in Figure 5-1. Set the standard equipment to DCV, and adjust until the display reads 300mV, press the OPR button to output.
- Page 17 Press the SHIFT button of the meter enter to the 300mV range calibration. Press the MNMX button of the meter, select the 30mV calibration point, and the “F” annunciator appears on the top left corner of the LCD, 1KHz appears on the secondary display indicates the frequency of the applied signal should be 1KHz.
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Page 18: Frequency Calibration
Applied the standard equipment 0.3 A, 1KHz to the meter. Keep the meter at least 20 seconds, press 10A FUSED NORMAL SCOPE the REL button to save the calibrated 1000V 750V value, and the “SAVE” displayed on the TRIG 500mA 250V LCD;... -
Page 19: Specifications
SECTION 6 Specifications INTRODUCTION This Section contains the specifications of the Dual Display Multimeter. These specifications assume: A 1-year calibration cycle An operating temperature of 18℃ to 28℃ (64.4℉~82.4℉) One-hour warmup Slow reading rate Relative humidity not exceeding 70% (non_condensing) Accuracy is expressed as ±... -
Page 20: Maximum Input
REMARK: Accuracy specifications apply to the range from 10% to 100% Input Impedance 1MΩ in parallel with 0.1µF Maximum Crest Factor Common Mode Rejection Ratio >120dB at 50Hz or 60Hz (1KΩ unbalanced resistance) Maximum Input 750V rms, 1000V peak. DC CURRENT Range Resolution Accuracy... - Page 21 Maximum Input Voltage 250V dc or rms ac on all ranges DIODE TEST/CONTINUITY Maximum Test Voltage ≤2V Test Current Approximate 1mA when measuring forward bias junction. Continuous Resistance ≤150Ω FREQUENCY Range Resolution Accuracy 300Hz 0.01 Hz 0.05%+2 3KHz 0.1 Hz 30KHz 1 Hz 300KHz...
- Page 22 The present manufacturer is not liable for any accident and hazard arising from any maoperation. The functions described in this operation instruction should not be used as grounds to apply this product to a particular purpose.
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