Summary of Contents for Albercorp RT3-100P
- Page 1 RT3-100P / 100L Digital Micro-Ohmmeters User's Guide 990 South Rogers Circle, Suite 11 Boca Raton, FL 33487 Tel: 561-997-2299 Fax: 561-997-5588 www.alber.com...
- Page 2 1. Warranty and Limitation of Liability LIMITED WARRANTY Albércorp warrants that the software product will perform in accordance with the accompanying written materials for a period of ninety (90) days from the date of receipt. Some states and jurisdictions do not allow limitations on duration of an implied warranty, so the above limitation may not apply to you.
- Page 3 Information in this document is subject to change without notice. RT3-100P / 100L Digital Micro-Ohmmeters User's Guide, Book Revision 1.0, 4200-030 2002 Albércorp, 990 South Rogers Circle, Suite 11, Boca Raton, FL 33487. This manual may not be copied in whole or in part without express written permission from Albércorp.
- Page 4 Safety Information • Except as explained in this manual, do not attempt to service Albércorp equipment yourself. Opening the equipment may expose you to dangerous voltages. Refer servicing beyond that described in this manual to authorized personnel. • Do not allow liquids or moisture to get into the equipment. If liquid does get into the equipment, unplug it immediately and contact your nearest authorized service center or Albércorp directly.
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Page 5: Table Of Contents
Table of Contents RECEIVING ............................1 1.1........................1 ONTACT NFORMATION GENERAL DESCRIPTION........................ 2 2.1........................... 2 CCEPTANCE CONTROLS AND INDICATORS RT3-100P ................... 3 3.1........................3 ANEL ONTROLS 3.2......................3 ANEL ONNECTORS 3.3........................ 4 ANEL NDICATORS CONTROLS AND INDICATORS RT3-100L ................... 5 4.1. -
Page 6: Receiving
Receiving 1. Receiving Upon receipt, visually inspect the RT3-100 Digital Micro-Ohmmeter to verify there is no shipping damage. It is your responsibility to initiate and settle damage claims with the shipper. Albércorp will assist with claims if necessary, but will not be liable for shipping damage not reported to the shipper. -
Page 7: General Description
To perform an acceptance test, connect the RT3-100 to an AC power source. If testing an RT3-100P, allow the batteries to charge for at least one hour. Connect the test leads to the precision 1000 microhm shunt provided with the unit, and verify the resistance reading on both ranges is within 1%. -
Page 8: Controls And Indicators Rt3-100P
Figure 1. RT3-100P Main Panel 3.1. Main Panel Controls On / Off switch - Turns the RT3-100P main power off or on. Does not initiate the test. 2000 Microhms / 20 Milliohms switch - Selects the appropriate resistance range for the load under test. -
Page 9: Main Panel Indicators
Controls and Indicators RT3-100P 3.3. Main Panel Indicators Charging LED - Lights when 115VAC power is connected to the unit. Does not indicate battery charge status. Meter - A digital display that indicates test results in microhms or milliohms, depending on the range selected. -
Page 10: Controls And Indicators Rt3-100L
Controls and Indicators RT3-100L 4. Controls and Indicators RT3-100L This section describes the items on the main (top) panel of the RT3-100L. Additional item descriptions may appear elsewhere in this manual or in related manuals. Figure 2. RT3-100L Main Panel 4.1. -
Page 11: Main Panel Indicators
Controls and Indicators RT3-100L 4.3. Main Panel Indicators Meter - A digital display that indicates test results in microhms or milliohms, depending on the range selected. Maximum indications are 1999 microhms or 19.99 milliohms. If the resistance under test exceeds the selected range, an overrange indication (1 followed by three spaces) appears. -
Page 12: Functional Operation
Figure 3. RT3-100P Block Diagram As the block diagram shows, with the control power switch on, the RT3-100P is in a reduced power consumption state. Power for the RT3-100L is derived from a 115VAC source. -
Page 13: Error Monitor
0.015% per degree Fahrenheit, which means that even under worst- case consideration, instrument accuracy is better than ±1%. NOTE: Because the RT3-100P is battery powered, do not use it outside the operating temperature range. The effect of cold temperature is a loss of battery capacity: battery capacity at 0°F is approximately 75% of rated. -
Page 14: Circuit Breaker Testing
Functional Operation 5.7. Circuit Breaker Testing WARNING: Before connecting the RT3-100 to a circuit breaker, close the breaker and ground one side of it. For safety, it is important that one side of the power circuit breaker be grounded prior to connecting the RT3-100 unit. -
Page 15: Batteries Rt3-100P
The charger, a constant potential, current limited type, supplies 40% of full charge within two hours and a trickle current after the batteries are fully charged. This means the RT3-100P is essentially ready to use any time and can be left on charge for extended periods of time without damaging the batteries. -
Page 16: Battery Replacement
Batteries RT3-100P 6.2. Battery Replacement If it is necessary to replace the batteries inside the RT3-100P, follow the steps in this section. Only technically qualified personnel should replace the batteries. WARNING: Before starting this procedure, disconnect all external leads and power sources from the RT3-100P. - Page 17 Batteries RT3-100P Replace each battery with the same or equivalent battery type as follows. 11. Observing battery polarity, use the ten screws (F) to install the new batteries onto the mounting plate. 12. Using four screws (D), secure the battery mounting plate (E) with batteries into the RT3-100P enclosure.
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Page 18: Test Leads
Test Leads 7. Test Leads The RT3-100 does not require calibrated leads, so you may repair damaged leads. You may also keep different sets of leads on hand for various applications. Because of the high drive capability of the unit, you may use small, easy-to-handle current leads. -
Page 19: Using The Rt3-100P
Using the RT3-100P 8. Using the RT3-100P Some RT3-100P and RT3-100L controls differ, but the functions of both units are the same. Follow these steps to use the RT3-100P. WARNING: Do not use the instrument with the AC cord connected when ambient temperature exceeds 85°F. - Page 20 Using the RT3-100P After the reading is erased, the RT3-100P is ready for another reading. Several readings can be taken in quick succession without affecting the accuracy of the instrument; however, repeated readings can cause internal heating. CAUTION: To prevent instrument damage from excessive heating, do not take more than six...
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Page 21: Using The Rt3-100L
Using the RT3-100L 9. Using the RT3-100L Some RT3-100P and RT3-100L controls differ, but the functions of both units are the same. The RT3-100L can be used immediately upon receipt. When Continuous mode is selected, you must set the Test switch to Off to stop test current flow. Follow these steps to use the RT3-100L. -
Page 22: Calibrating The Rt3-100P
2. Press the Read button and adjust P1 for a panel meter reading of 1000µΩ ±5µΩ. Clockwise lowers the reading. 3. Connect the RT3-100P test leads to a known value 10 to 15 milliohm resistor. 4. Set the Range switch to 20.00 milliohms. -
Page 23: Calibrating The Rt3-100L
Calibrating the RT3-100L 11. Calibrating the RT3-100L The RT3-100L has two potentiometers that must be checked at yearly intervals or whenever readings become suspect. Calibration requires a millivoltmeter and the 1000 microhm (50 amp/50 mV) shunt packed with the unit. Using the shunt, the RT3-100 must indicate 1000 microhms ±1 microhm. -
Page 24: Preventive Maintenance
Maintenance and Spare Parts 12. Preventive Maintenance The RT3-100 requires minimal preventive maintenance. Inspect the test leads periodically to confirm the clips are firmly attached and clean, especially the contact blocks on current leads. The Potential lead shielded wire must not touch the test clip. To replace the batteries, refer to Battery Replacement. -
Page 25: Specifications
Specifications 14. Specifications The RT3-100P and RT3-100L have the same specifications except that Momentary or Continuous operating modes are used instead of the Long Pulse/Short Pulse modes, and battery specifications do not apply to the RT3-100L. Power Source: RT3-100L ......115VAC 60Hz 720 watts or 230VAC 50Hz 720 watts RT3-100P ......115VAC 60Hz 50 watts, plus rechargeable battery or... - Page 26 Index Index battery...............10 inductive load ..........14, 16 charging ............10 kantwist/mueller test lead ........ 13 discharge............10 kelvin test lead ..........13 end of life............10 long mode ............14 replacement ..........11 long/short pulse mode switch ......3 temperature ...........10 meter - panel ..........4, 6 calibration - L model ........18 microhms/milliohms switch......
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