Meco 81K Instruction Manual

Digital Multimeter
Function Generator
10 Digit Counter
MODEL : 81K / 81K-TRMS
80000 Series
1
Brief introduction
These series have two models.
The 80000 is autorange and calibrated by 50Hz sine signal.
The 80000R is also antorange and can offer true RMS measurement.
Safety information
Read this operation manual completely before using the meter to ensure that you use the meter safety
follow the safety guidelines as below :
Use the meter only as specified in this manual; Other wise,the protection provided by the meter
l
maybe impaired.
l Never measure voltage while the test leads are inserted into the current input terminals.
l Do not use the meter if it looks damaged .
l Inspect the leads for damaged insulation or exposed metal, check test lead continuity. Replace
damaged leads.
l Disconnect the power and discharge all high-voltage capacitors before testing in resistance, continuity,
and diode function.
l Be Cautions when working above DC 60V or AC 42V,such voltages may cause a shock hazard.
l When making measurement, keep your fingers behind the guards plant on the probes.
l Select the proper function and range for measurement, To avoid damaging the meter, disconnect
the test leads from test points before change function.
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A unique Multi-functional device
®
Features :
l Multi-Display : Primary 80000
Secondary 80000
Bargraph 23 segments
l Basic DC Accuracy : 0.05%
l mV Impedance : >1000MV
l More than 50 measuring functions.
l Frequency measurement : 0.5Hz to 1000.000000 MHz
l 16 Freguency points, 1% to 99% duty selectable square wave output.
l Analyzing component of current or voltage signal.
Resistance : 0.1V to 80MV,10MV to 8000MV
l
l Capacitance : 1PF to 100mF
Temperature : -50 0 C to 1372
l
l dBm 20 types of reference impedance.
Auto data hold/peak hold.
l
l Relative measurement.
l 36-hours dynamic recording : MAX / MIN / AVG / MAX-MIN
l Communication : isolated optical RS232
l Timer for measurement.
l Backlight display.
l Auto power off
Function of meter
Terminal
About terminal function refer to table 1
Table 1. terminal
Terminal
COM
V / V / Hz
mA
10A
0 C, -58 0 F to 2502 0 F
Function
Common terminal for all measurement
Volts, Ohm, Diode, Freq., Temp. and Cap.
measurement and square wave output terminal
milliampere current measurement terminal
Ampere current measurement terminal
Figure 1. terminal
2
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