Table of Contents
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Safety Instructions .................................................. 2
Safety Sign ............................................................... 3
General Description................................................. 3
Features .................................................................... 4
Appearance .............................................................. 6
Knob Switch Operations ......................................... 8
Button Switch Operations .................................... 10
LCD DISPLAY ......................................................... 12
Hz ............................................................................ 13
Instruction Manual ................................................ 15
AC voltage (V) measurement .............................. 15
AC CURRENT measurement ................................ 17
Test of single-phase circuit .................................. 19
Single-phase three-line circuit ............................. 22
Input Voltage and Current ................................... 23
full scale. ................................................................. 23
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Summary of Contents for Mastech MS2208
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Page 1: Table Of Contents
Contents Safety Instructions ..........2 Safety Sign ............... 3 General Description..........3 Features ..............4 Appearance .............. 6 Knob Switch Operations ......... 8 Button Switch Operations ........10 LCD DISPLAY ............12 Hz ................13 Instruction Manual ..........15 AC voltage (V) measurement ......15 AC CURRENT measurement ........ - Page 2 Backlight ..............23 Auto Power Off ............24 Power curve diagram ..........24 Battery-low Indication .......... 26 General specification ..........27 Technical specification .......... 29 Accessories ............. 32...
- Page 3 Please carefully read the instruction manual before using the tester, and pay special attention to “Warning” content. Please follow instructions under “Warning”. Please be very careful when test voltage is higher than AC 30 V, and do keep in mind that your finger shall not exceed the hand-shielding part of the test probe.
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Page 4: Contents
and identical electrical specifications. 5. Please never carry out any voltage measurement whenever the test probe is inserted in any current outlet. 6. Please do not expose the meter to strong light, high temperature, or dampness. Before use, please carefully read this instruction manual. -
Page 5: Safety Sign
Safety Sign Important safety signs; please refer to instruction manual High voltage hazard Earthing Double insulation (Category-II safety equipment) Battery low Indicator General Description The digital power meter is a hand-held intelligent harmonic power tester, with both functions of digital current testing and power testing. -
Page 6: Features
measure, calculate, and display voltage, current, active power, power factor, apparent power, passive power, frequency, harmonic parameters, with stable performance and operation convenience. The meter is especially suitable measurement examination of on-site power equipment and power-supplying circuits; with hand-held clamp structure, small volume, and light weight, it can be easily carried by the user, which makes it easy and fast for doing measurement. - Page 7 True effective value measurement: accurate measurement is possible even with serious distortion in current waveform. Low-consumption high-speed single-chip microprocessor is employed and sophisticated algorithm is applied, as a result, results can be obtained rapidly and precisely, and up to 20 harmonics and distortion value thereof can be measured.
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Page 8: Appearance
Appearance... - Page 9 Current clamp size：Ф26mm Function-switching knob :Rotation knob for selecting different measuring function Function-selection button: Button for operating the measuring functions Input terminal Terminal Function Function Function Function Input terminal for measuring the first phase; use yellow test probe for connection Input terminal for measuring the 2nd phase;...
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Page 10: Knob Switch Operations
LCD for displaying measurement operation function, test result, and unit sign. 键：HOLD button :DATA HOLD button; press down HOLD button, and the last reading will be held and displayed on the display, and “HOLD” symbol will be shown; press HOLD button again, and the meter will switch back to normal measurement mode. - Page 11 Knob position description Sign Knob position Functions Powering-off For powering-off position Active power For measuring ac position tive power, etc. power position measuring active power, etc. V～ ～ ～ ～ AC-voltage har For measuring A monics test posi C-voltage harmon tion ics, etc.
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Page 12: Button Switch Operations
Note: When the meter is automatically powered off, be sure to switch the knob to “OFF” position; turn on the meter after 5 seconds. Button Switch Operations Button descriptions Function-selection button Test-mode switching button MODE ▲ Reverse-search button ▼ Forward-search button MAX/MIN Value MIN/MAX HOLD/LIGHT... - Page 13 the display among total harmonic distortion rate F, r, and harmonic percentage. 2．▲： press ▲ button to change view MAX value,MI N value,measuring time; During testing harmonics , you can change the times of harmonics. press ▲ button to search backward thestored dat a and show it on LCD.
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Page 14: Lcd Display
the max /min Power,current,voltage. ： ： ： ： 5．HOLD/ After measurement, press this button to hold this data on LCD; after powering-off, data will display Press this button longer than 1S,Open or close the back light. LCD DISPLAY... - Page 15 LCD symbol Descripti Descripti symbol AutoPowe HOLD Hold r Off Phase LEAD Phase angle lag angle lead Battery Phase power angle indication (degree) SINФ Phase COSФ Power angle factor (degree) PEAK Peak symbol value Frequency Negative symbol Minimum Maximu value m value USED Used...
- Page 16 LCD symbol Descripti Descripti symbol %THD Total harmonics distortion ratio H01F Total harmonics distortion ratio F (relative to base wave) H01r Total harmonics distortion ratio r (relative to real effective value)
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Page 17: Instruction Manual
Instruction Manual AC voltage (V) measurement... - Page 18 According to the connection mode as above Table , switch the function switching knob to V~, select corresponding sockets from V,COM terminal, and insert the test wire. Connect the two test probes V1, COMto the power source or load to be tested. The meter will automatically test and display the result, and the present harmonics percentage will be shown on the following line.
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Page 19: Ac Current Measurement
AC CURRENT measurement... - Page 20 Switch the function knob to A~ position; Pull the trigger to open the clamp, and then clip a wire which is to be tested; the measured current value will be automatically shown on Press MODE button to show harmonics percentage on LCD, and the total harmonic distortion ratio F and r will be cyclically displayed.
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Page 21: Test Of Single-Phase Circuit
calculation is performed only when base-wave frequency is between 45 and 65 Hz; harmonic analysis is not performed when base-wave frequency exceeds this range. Test of single-phase circuit Clip the clamp on the test wire of the power supply or load. If the user needs to measure a certain phase of the 3-phase circuit, then the clamp should clip on the wire of the same phase. - Page 22 value of the load being tested will be displayed on the bottom line of LCD; press down MODE button, Var value of passive power will be displayed on LCD; press WATT button to display apparent power and power factor (cos Φ); negative power factor signifies that the load being tested...
- Page 23 Passive power is a value not directly measured; equation for kVAr is kVAr =kVA ; its value is calculated by software based on the measured voltage, current and active power, and displayed on LCD. Black...
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Page 24: Cosφ, Sinφ, And Phase Angle Measurement
cosΦ, sinΦ, phase angle measurement 1. Switch the function-switch knob to KW/W position, and the test wire is inserted to V1/COM input terminals. The meter will automatically measure and display power factor, voltage value and current value. Press MODE button to display phase angle, power factor (cos Φ), and sinΦ;... -
Page 25: Input Voltage And Current
the red clip and clamp-type sensor are simultan eously connected to all test wires. Black Black Input Voltage and Current During power measurement, if input voltage is over 600 V (RMS) or current over 200 A (RMS), “OL” symbol will be displayed and bar symbol shown in full scale. -
Page 26: Auto Power Off
Auto Power Off If there is no function change or button press fo 10 minutes ,the meter will automatically turn power off , When the meter is automatically powered off, be sure to switch the knob to “OFF” position; turn on the meter after 5 seconds. - Page 27 500W ACTIVE POWER kW=I R...
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Page 28: Battery-Low Indication
Battery-low Indication If battery voltage is low, “ ” symbol will be displayed on the upper right corner of LCD. Then, it is needed to replace new batteries. Battery Replace Warning 1. Before opening the back lid to replace batteries, please make sure the meter is turned off and no test probe is connected to any test wire so as to avoid electrical shock;... -
Page 29: General Specification
Disconnect test probes from test circuit, and rotate function-switching knob to “OFF”, and then take off test probes from the input sockets. Open battery cove, Take out old batteries, and replace them with 3new 1.5 V batteries. New batteries shall not be used together with old ones. Properly close the battery cover. - Page 30 Over-range display: “OL” Data holding: “HOLD” is shown on LCD Power supply: 3 batteries of 1.5 V, AAA Power consumption: 250 mW Storage temperature: - 20 °C ~ 70 °C 10. Operating temperature: 0 °C ~ 40 °C Coefficient:0.05 × (specified 11.
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Page 31: Technical Specification
Technical specification Accuracy: ±(% read + graduation #) ambient temperature: 18°C ~ 28°C, Humidity 80%, frequency for voltage, current: 45 Hz ~ 65 Hz AC Voltage RMS Range Accuracy Resolution Input impedance ± 10V-600V 0.1V 1 M // (1.0%+5) 10 pF Max. - Page 32 （ （ （ （ W） ） ） ） Single-phase active power Range Accuracy Resolution ±(3%+5) 0.01W-120KW 0.01W Min. test current: 10mA; Min. test voltage: 10V Power factor Range Accuracy Resolution ±(0.02+2) 0.3～1 Capacitive 0.001 ±(0.02+2) 0.3～1 Inductive 0.001 Min. test current: 10mA; Min. test voltage: 10V =( ( ( ( VA) (VAr) Passive power...
- Page 33 (Hz) Frequency Range Accuracy Resolution 30Hz～1kHz 0.5%+1 0.1Hz Min. test current: 10mA; Min. test voltage: 10V Harmonic test Harmonic number Precision of harmonic voltage ±(3.0%+10) ±(3.5%+10) ±(4.5%+10) ±(5.0%+10) 9-10 ±(7%+10) 11-15 ±(10%+10) 16-20 Min. test current: 20mA; Min. test voltage: 20V...
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Page 34: Accessories
Accessories Item Quantity ×1 Instruction Manual Battery 1.5V AA A Battery×3 ×1 Test Leads ×2（Red,Black） Test clip ×1 Package box... - Page 35 Quality Assurance Thank you for using the product of our company; this product has a warranty period of one year starting from purchasing date. This product has passed the strict quality test of our company. Our company will exert our efforts to do after-sales service for you in accordance with the Warranty instructions.
- Page 36 When warranty period is over, the repairing will be charged. Free service does not apply to the following cases: Problems and damages due to improper use or use under environment which is not stipulated for this product, including overloading. Problems damages unauthorized dismantling or refitting and misuse.
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