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7

(3) Diode testing

Range

Resolution

Accuracy

Max. test current

Max.open cuicuit

voltage

1.5mA

3.2V

1mV

±(1.5%rdg + 5dgt)

Overload protection:

500V DC/AC max.

(4) LED Test

Testing Voltage :

3.2V max.

Test Current :

2mA or 10mA two ranges.

LED lamp lighted test, display reading is LED forward voltage approx.

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Summary of Contents for 76

Page 1: ...RC METERPLUS INSTRUCTION MANUAL APPA 76 ...

Page 2: ...re 1 and the following nunberes steps to familiarize yourself with the meter s front panel controls and connectors 1 Digital display The 31 2 segment 1999 count digital LCD display has automatic annunciators for polarity decimal point over range and low battery voltage 2 Zero adjuster for capacitance This allows the display to be zeroed when measuring capacitance zeroing range approx 20pF 3 On off...

Page 3: ...a plug 7 Capacitance input terminal Negative input for capacitance measurements Takes banana plug 8 Ω E D LED input terminal Positive output for testing resistors diodes and LEDs and positive input for battery testing Takes banana plug 9 Ω E D LED input terminal Negative output for testing resistors diodes and LEDs and negative input for battery testing Takes banana plug 10 Transistor and SCR sock...

Page 4: ...3 Figure 1 ...

Page 5: ...inal Operating temperature 0 to 50 C 0 to 80 RH Storage temperature 20 to 60 C 0 to 80 RH When battery removed from meter Temperature coefficient 0 15 x specified accuracy C 18 C or 28 C Power required Standard 9V battery NEDA 1604 JIS 006P IEC 6F22 Battery life Approx 200 hours on alkaline battery Dimensions L x B x H 84 x 175 x 31 mm without holster 95 x 192 x 50 mm with holster Weight includ ba...

Page 6: ... of digits at 23 C 5 C less than 75 RH 1 Capacitance Range Resolution Accuracy Test frequency 200pF 0 1pF 0 5 rdg 1dgt 0 5pF 820Hz 2nF 1pF 20nF 10pF 200nF 100pF 2µF 1nF 20µF 10nF 200µF 100nF 82Hz 2000µF 1µF 1 rdg 1dgt 8 2Hz 20mF 10µF 1 5 rdg 1dgt 0 5 rdg 1dgt ...

Page 7: ...t capacitor discharge above 50V by a 0 25A 250V quick acting fuse Zeroing for capacitance restricted to approx 20pF 2 Resistance Range Resolution Accuracy Max open circuit voltage Overload protection 200Ω 0 1Ω 0 75 rdg 4dgt 3 2V 500 Vd c a c max 2kΩ 1Ω 0 5 rdg 1dgt 20kΩ 10Ω 200kΩ 100Ω 2MΩ 1kΩ 0 75 rdg 1dgt 20MΩ 10kΩ 2 rdg 1dgt 0 5V ...

Page 8: ... Max test current Max open cuicuit voltage 1 5mA 3 2V 1mV 1 5 rdg 5dgt Overload protection 500V DC AC max 4 LED Test Testing Voltage 3 2V max Test Current 2mA or 10mA two ranges LED lamp lighted test display reading is LED forward voltage approx ...

Page 9: ...N transistor hFE Base Current 10µA approx hFE Vce 3V approx Iceo 10nA 20 00µA 6 SCR Test SCR good defect test 7 Battery testing Battery type Load 9V Battery Load 15mA approx 1 5V AA C or D Cell Load approx 150mA 1 55V Button Cells Load approx 0 8mA Display reading is battery Voltage approx ...

Page 10: ...y indicates the tester is on 2 Set to the 200pF range Adjust the zero adjuster so that the lowest digit on the display is as close as possible to changing from 1 to 0 and the sign does not appear If you need to use test leads plug them in before you zero the tester Zeroing the tester with the leads connected allows the capacitance of the leads to be nulled Do not short the leads together 3 You sho...

Page 11: ... capacitors and or capacitors for PCB mounting set the meter to 0 and insert the capacitor terminals straight into the measuring sockets Where it is not possible to use the measuring sockets with the capacitors you wish to measure plug the test leads into the and capacitance input terminals and apply the leads to the capacitor terminals 6 An over range is indicated by a 1 as the highest digit and ...

Page 12: ...e the maximum that the zero adjuster can correct for what you can do is to make a note of the capacitance of the leads and subtract it from the final measurement 4 When you wish to measure a number of capacitors some of which require the test leads and some of which do not you can leave the leads connected to the tester while making all of the measurements This means that the tester does not have ...

Page 13: ...ing resistance 1 Switch on tester move on off switch to ON position 2 Turn rotary switch to the desired range 3 Plug the black test lead into the Ω input terminal and the red lead into the Ω input terminal 4 Apply the probes to the points between which the resistance is to be measured and read off the value shown 3 3 Measuring transistor hFE 1 Switch on tester move on off switch to ON position 2 T...

Page 14: ... ICEO of the transistor straight off the display The unit of measurement is µA 3 5 Testing of SCRs thyristors good bad 1 Switch on tester move on off switch to ON position 2 Turn rotary switch to the position SCR 3 Insert the SCR straight into the transistor socket The holes of the socket are marked A and G for anode and gate and K for cathode 4 If the SCR is good the display should show 000 5 Tur...

Page 15: ...the bottom half of the case closest to the LCD display until it releases from the top half with a slight click 4 Take the battery out of the top half of the case and carefully unplug the connector from it 5 Press the connector onto the new battery until it clicks home and insert the battery into the top half of the case Make sure that the connecting wire will not be caught between the two halves o...

Page 16: ...15 Figure 2 Bottom half of case Top half of case 9V Battery Battery Connector ...

Page 17: ...ew fuse of the same size with the same ratings Make sure that the fuse is centered longitudinally in the fuse holder 5 Make sure that the bar of the rotary switch in the top half of the case and the rotary switch on the printed circuit board are both in the OFF position 6 Fit the printed circuit board back into its original position making sure that O rings on the case screws are correctly seated ...

Page 18: ...17 Top half of case Fuse Fuse Holster Bottom half of case Fuse 0 25A 5 x 20mm fast blow 250V HBC 1 0KA Figure 3 ...

Page 19: ...18 HOW TO USE THE PROBE HOLDER Clip one probe on the holster for one handed meter operation Wrap the leads around the holster to store the test probes ...

Page 20: ...19 HOW TO USE THE TILT STAND AND HOLSTER Swing the stand out for easier meter reading Swing the upper holder out and hook it over a door ...

Page 21: ...20 HOW TO USE THE TILT STAND AND HOLSTER Meter in holster face down Hang on a nail at the workbench ...

Page 22: ... Pao Zong Rd Shin Tien Taipai 23115 Taiwan R O C P O Box 12 24 Shin Tien Taiwan Tel 886 2 29178820 Fax 886 2 29170848 E MAIL info appatech com http www appatech com Printed In Taiwan Copright 1997 APPA Tech Corp All rights reserved ...

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