Tegam R1M-A Скачать руководство пользователя страница 20 | Manualshive

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Revised August, 2004

10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110

•

[email protected]

5-7

MAINTENANCE

Figure 2: Front Panel Controls

Ohms Range Switch

Test Voltage Range Switch

Power Switch

Test Pushbutton

3 ½ Digit Display

Test Voltage

Jack

Voltage Present

LED

Signal,

Guard &

Ground

Binding

Posts

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Содержание R1M-A

Страница 1: ...blication Date December 2012 REV C REPRODUCTION AND DISTRIBUTION OF THIS TECHNICAL MANUAL IS AUTHORIZED FOR US GOVERNMENT PURPOSES TEGAM PROPRIETARY INFORMATION NOTE This User s Manual was as current...

Страница 2: ...5 1 Cleaning 5 1 Test Equipment required for Calibration and Repair 5 1 Performance Verification 5 2 Calibration 5 3 Troubleshooting 5 4 Table 2 Fault Symptoms and Repair Actions 5 5 Preparation for...

Страница 3: ...ilitary applications The Model RIM A may be used to measure resistances between 50 k and 10 G with 50 V test voltage and between 1 M and 200 G with 100 V 250 V or 500 V test voltage 1 2 Performance Ch...

Страница 4: ...while wearing safety gloves Electrical Input power is from the AC power line 103 5 V to 129 V at 50 Hz or 60 Hz at less than 1 8 A Environmental This unit will operate over a temperature range from 0...

Страница 5: ...OSTS 1 4 List of Items Furnished 1 each Model R1M A with power cord 2 each test cables one shielded with two alligator clips and the other with one alligator clip 1 each R1M A Instruction Manual 1 5 S...

Страница 6: ...act the previous user to locate the missing item s 2 2 Preparation for Use Release the two latches which secure the lid and open the lid Remove the power cord and the two test cables which are stored...

Страница 7: ...binding posts Note that the pin marked GROUND should go into the GUARD binding post If there is no guard available and the black alligator clip at the other end of the test cable is left floating the...

Страница 8: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 2 3 PREPARATION FOR USE AND INSTALLATION Figure 1 Connection Diagram...

Страница 9: ...counts step down a range so that it will read 1 999 counts or less The decimal point is located automatically for the correct reading If the selected range is too low for the value of the resistor un...

Страница 10: ...t readings greater than 100 will take more time Thus the 1 M range may be used to measure resistors from 50 k to 1 999 M Note that the test voltage must be 50 V for resistances less than 1 M If the re...

Страница 11: ...e selected value R38 provides protection for Q1 from excess current caused by external voltages R6 R9 operate as a four section voltage divider dividing the voltage from U2 a 2 5 V precision voltage r...

Страница 12: ...e action of D3 is to create a virtual ground at the input pin 2 and at the SIG binding post This has the advantage that the full value of the test voltage is developed across the resistor under test w...

Страница 13: ...positive increasing the base current to the shunt regulator Q1 and reducing the output high voltage When this happens the normal regulating section of U1 with output pin 8 which is normally somewhat p...

Страница 14: ...loth Clean the LCD window using a soft cloth moistened with water or Windex type window cleaner DO NOT use common paper towel products as some brands may contain fibers which could scratch the display...

Страница 15: ...GE selector switch within 3 If not there is no adjustment other than to check the various components in the high voltage regulator circuit and to replace any found to be defective 2 Check that the lig...

Страница 16: ...f the display board which may be adjusted for calibration WARNING USE EXTREME CARE IN HANDLING THIS UNIT EVEN WITHOUT OPERATING THE TEST PUSHBUTTON THERE ARE VERY HIGH VOLTAGES PRESENT THEY COULD BE L...

Страница 17: ...ng the power supply board to the threaded spacers Remove the four front panel screws that pass through the front panel metal tubular spacers nylon washers the display board into the threaded spacers T...

Страница 18: ...ace bad part Check for 6 V If not trace replace bad part Replace U4 or U5 No Test Voltage T1 D7 8 C23 24 R37 Check for 360 VAC pins 7 8 Replace D7 8 Replace C23 24 Replace R37 1 M Range not Accurate R...

Страница 19: ...or special cradles Packaging must provide sufficient resilient material in accordance with standard packaging practices to prevent excessive shock to the power supply and display during shipment 5 8...

Страница 20: ...0 FAX 440 466 6110 sales tegam com 5 7 MAINTENANCE Figure 2 Front Panel Controls Ohms Range Switch Test Voltage Range Switch Power Switch Test Pushbutton 3 Digit Display Test Voltage Jack Voltage Pres...

Страница 21: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 8 MAINTENANCE Figure 3 Front Panel Rear View TEGAM INC...

Страница 22: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 9 MAINTENANCE Figure 4 Simplified Block Diagram TEGAM INC TEGAM INC...

Страница 23: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 10 MAINTENANCE Figure 3 Digital Section Figure 5 Power Supply Schematics TEGAM INC...

Страница 24: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 11 MAINTENANCE Figure 6 Power Supply Board Layout TEGAM INC...

Страница 25: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 12 MAINTENANCE Figure 4 Parts Layout Figure 7a Display Board Schematic TEGAM Inc TEGAM INC...

Страница 26: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 13 MAINTENANCE Figure 7b Display Board Schematic TEGAM INC...

Страница 27: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 14 MAINTENANCE Figure 8 Display Board Parts Layout U1 Q1 TEGAM INC...

Страница 28: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 sales tegam com 5 15 MAINTENANCE Figure 9 System Side View Layout TEGAM INC...

Страница 29: ...1 PPH MS SS McMaster 8 4 4 40 x 1 4 PPH MS SS McMaster 9 4 4 x Rnd Spacer Alm McMaster 1128 4 B 12 10 4 4 40 x Threaded Hex Standoff Aluminum McMaster 2104 440 B 12 12 13 1 Power Supply Board TEGAM M...

Страница 30: ...15 R9 20 25 25 3 4 99K K Dale e RN55D4991F F 16 R12 15 15 2 100K K Dale e RN55D1003F F 17 R13 3 1 174K K Dale e RN55D1743F F 18 R14 4 1 Trimpot 10K 10K Bourns s 3006P 1 103 103 19 R16 6 1 49 9M M Phil...

Страница 31: ...Eagle 45KN018 14 1 Plexiglass Window Clr TEGAM A 12400 15 Make From 3 x 1 1 4 x 1 16 Commercial 16 0 02 Tube Clear RTV Commercial 17 1 Front Panel 5 45 x 8 45 Etched Metal C 12372 18 1 4 40 x PPH MS S...

Страница 32: ...SEMICONDUCTOR 4E8P4 TYCO Z9V34 FEMA OP7Z6 TYTON 3E655 GE MG CHEMICALS L3160 VISHAY SILICONIX CE463 GRAYHILL 81073 VOLEX POWER CORDS U7112 ILLINOIS CAPACITOR 74840 Table 7 Vendor Cage Code Directory T...

Страница 33: ...Of even importance a detailed written description of the problem should be attached to the instrument Many times repair turnaround is unnecessarily delayed due to a lack of repair instructions or of a...

Страница 34: ...dite the processing and repair process RMA Instrument Model Serial Number Company Technical Contact Phone Number Additional Contact Info Repair Instructions Evaluation Calibration Only Repair Only Rep...

Страница 35: ...recalibrate any product which does not conform to the published accuracy specifications In order to exercise this warranty TEGAM Inc must be notified of the defective product before the expiration of...

Страница 36: ...ecial or consequential damages Purchaser s sole and exclusive remedy in the event any item fails to comply with the foregoing express warranty of TEGAM shall be to return the item to TEGAM shipping ch...

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