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
Страница 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...
Страница 2: ...d NO LIABILITY FOR CONSEQUENTIAL DAMAGES Alb rcorp shall not in any case be liable for any damages including special incidental indirect exemplary collateral or consequential arising from breach of wa...
Страница 3: ...l be acquired shipped transferred or exported directly or indirectly into any country or used for any purpose except as authorized by the Act and the regulations GENERAL This Software License Agreemen...
Страница 4: ...If liquid does get into the equipment unplug it immediately and contact your nearest authorized service center or Alb rcorp directly Ensure equipment is provided adequate ventilation Do not block equ...
Страница 5: ...7 5 1 OPERATING PRINCIPLE 7 5 2 MEASUREMENT ACCURACY 7 5 3 ERROR MONITOR 8 5 4 OPERATING TEMPERATURE 8 5 5 OVERRANGE INDICATION 8 5 6 CONNECTING TO THE LOAD 8 5 7 CIRCUIT BREAKER TESTING 9 6 BATTERIES...
Страница 6: ...t reported to the shipper You should also verify the items received match the packing slip Alb rcorp is not responsible for missing items not reported within ten days after receipt by the customer 1 1...
Страница 7: ...al describes both the RT3 100P and the RT3 100L If a feature applies to both models then the reference RT3 100 is used Instrument operation consists of selecting the required measuring range and press...
Страница 8: ...ate the test 2000 Microhms 20 Milliohms switch Selects the appropriate resistance range for the load under test Long Short Pulse Mode switch Selects the length of time a test current is applied Does n...
Страница 9: ...ximum 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 Error LED Lights if the load c...
Страница 10: ...he load under test The available ranges are 2000 microhms and 20 milliohms Continuous Off Momentary Test switch Selects the length of time test current is applied Activates the test When set to Moment...
Страница 11: ...exceeds the selected range an overrange indication 1 followed by three spaces appears Error LED Lights when the test leads are connected to an energized circuit When such a connection error occurs te...
Страница 12: ...ce 5 2 Measurement Accuracy In practice total resistance in the test current path varies with the changing load resistance and the test current can deviate from its nominal value However one of the ad...
Страница 13: ...he operating temperature range The effect of cold temperature is a loss of battery capacity battery capacity at 0 F is approximately 75 of rated WARNING The unit may be charged only between 40 F to 85...
Страница 14: ...d prior to connecting the RT3 100 unit Although the RT3 100 is protected against high static voltages it should not be used to discharge high voltages to ground If the circuit breaker under test has c...
Страница 15: ...ut the charger connected When the Error LED remains lit at the end of a current pulse it indicates either a high load resistance or the batteries must be charged WARNING Do not use the instrument with...
Страница 16: ...panel up Figure 4 RT3 100P Battery Replacement WARNING When connecting or disconnecting the internal battery leads do not reverse the leads or allow them to touch other circuits or the metal enclosure...
Страница 17: ...the battery mounting plate E with batteries into the RT3 100P enclosure 13 Connect the 10V series connection wire C to the batteries 14 Connect the three positive battery connections B to the batterie...
Страница 18: ...ds are positioned exactly at the calibration points and the small resistance between the screw head and the load is in series with the high input impedance of the meter circuit thus being totally insi...
Страница 19: ...ductive loads such as circuit breakers with current transformers 8 Press the Read button In about one second for resistive load or after the reading has settled for inductive load the meter displays t...
Страница 20: ...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 n...
Страница 21: ...mers 8 In about one second for resistive load or after the reading has settled for inductive load the meter displays the resistance of the equipment under test This reading is displayed until either t...
Страница 22: ...current is below 88 amps and should go out at the end of the current pulse when the current flow is 90 amps or greater The Error LED threshold setting is not critical and the tolerances may be opened...
Страница 23: ...ration adjustments on the PC board remove the six main panel screws and lift the panel up This exposes the PC board Adjust the unit as follows 1 Connect the RT3 100L potential and current leads to the...
Страница 24: ...Battery Replacement 13 Spare Parts List Item Part Number AC Cable 1100 009 Potential Leads 20 ft ML 100 Current Leads 20 ft ML 230 Spiked Probe Leads w read button 20 ft ML 301 Spiked Probe Leads w o...
Страница 25: ...tion 0 to 1999 microhm range 1 microhm 0 1 optional 0 to 19 99 microhm range 10 microhms Temperature Coefficient Less than 0 02 per C Range 0 to 1999 microhms 0 to 19 99 microhms Test Current 100 amps...
Страница 26: ...w LED 6 current transformers 9 error LED 4 6 8 10 four wire principle 7 fuse 3 5 inductive load 14 16 kantwist mueller test lead 13 kelvin test lead 13 long mode 14 long short pulse mode switch 3 mete...
