Circuit Analyzer SureTest IDEAL Electrical

Circuit Analyzer Suretest Ideal Electrical-Free PDF

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ND 5481 4 61 164 165 Ins 11 21 06 1 28 PM Page 3, The Voltage V menu displays the True RMS line voltage in real time This main menu has Testing Procedure. a sub menu positioned horizontally at the bottom of the screen that displays the line voltage Wiring Verification. RMS HN ground to neutral voltage RMS GN Peak voltage Peak and Frequency Immediately after being inserted into a receptacle the. Hz To navigate through the submenu use the side arrow button SureTest displays the IDEAL logo while it performs a battery. of tests The first test result displayed is the wiring condition. The Voltage Drop VD screen dual displays percent voltage drop with a 15 amp load along The SureTest checks for the following conditions and indicates the test result on. with the resultant loaded voltage VL This main menu has a submenu which also dis the display. plays the percent voltage drop and loaded voltage with 20 amp and 12 amp loads To navi. gate through the submenu use the side arrow button Wiring Condition Display Indication. The ASCC screen displays the Available Short Circuit Current that the branch circuit can Correct Wiring Legend. deliver through the breaker during a bolted fault dead short condition No Ground On. Polarity Reversal Off, The Impedance Z main menu displays the impedance in ohms of the hot conductor Open Hot Neutral Flashing. This main menu has a sub menu positioned horizontally at the bottom of the screen that False Ground F. also displays the neutral N and ground G conductor impedances To navigate through. the submenu use the side arrow button Note that testing the ground impedance will If the wiring condition is other than normal the SureTest is limited on its. trip a GFCI protected circuit measurements that can be performed If a no ground condition exists only the. line voltage and voltage drop measurements are available In a hot ground rever. GFCI Test Button sal open neutral or open hot condition the unit will not have any power so the. Depressing this button displays the GFCI main menu Two tests can display will be blank. be performed in this menu GFCI and EPD The GFCI tests Ground. Fault Circuit Interrupting devices by faulting 6 9mA from hot to Notes. ground per UL 1436 The EPD tests those breakers which have an 1 Will not detect two hot wires in a circuit. Equipment Protective Device feature that trips the breaker if a ground fault of greater than 30mA 2 Will not detect a combination of defects. is detected Pressing the side arrow button navigates between these two tests Once the 3 Will not detect reversal of grounded and grounding conductors. desired test is highlighted depress the GFCI test button on the keypad to activate the test. False Ground Indication, NEC article 250 23 a only allows for a neutral to ground bond to occur at the. AFCI Test Button, main panel The SureTest suggests any improper neutral to ground bonds within. Depressing this button displays the AFCI main menu Two tests. 15 20 feet upstream towards the panel of the tester If this bond improperly. can be performed in this menu AFCI and NEUT The AFCI tests. occurs in the branch circuit through a bootleg ground via a jumper wire at the outlet. Arc Fault Circuit Interrupting devices by creating a 106 141 amp. device or inadvertent contact of the ground wire to the neutral connection the. short duration arc between the hot and neutral conductors per. SureTest indicates a false ground condition Note that if the SureTest is within 15. UL1436 The NEUT tests for a Shared Neutral or falsely grounded neutral conductor. 20 feet of the main panel the unit will indicate a false ground condition on a prop. which causes AFCI breakers to nuisance trip with normal loads This test applies 300mA. erly wired circuit due to its close proximity to the proper ground neutral bond in the. between hot and neutral to ensure that the AFCI breaker does not trip. main panel,ND 5481 4 61 164 165 Ins 11 21 06 1 28 PM Page 5.
Voltage Drop VD Measurements, Voltage Measurements The SureTest measures the line voltage applies a load on the circuit measures the loaded. The line voltage measurement should be 120VAC 10 fluctuation at 60 Hz The peak volt voltage then calculates the voltage drop Results are displayed for 12A 15A and 20A. age should be 1 414 times the rms line voltage reading for a clean sine waveform Ground to loads The National Electrical Code recommends 5 as the maximum voltage drop for. neutral voltage should be less than 2 VAC In a single phase circuit a higher ground neutral branch circuits for reasonable efficiency NEC article 210 19 FPN 4 And the voltage. under load VL should not drop below 108VAC for reliable equipment operation. voltage indicates excessive current leakage between the neutral and ground conductors In a 3. phase circuit with a shared neutral a high ground neutral voltage could indicate an unbalanced A good branch circuit should start out with less than 5 voltage drop at the furthest recep. load between the three phases or harmonic distortion on the shared neutral Excessive ground tacle from the panel at the end of the cable run Then each receptacle tested in sequence. neutral voltage may result in inconsistent or intermittent equipment performance towards the panel should show a steady decrease in voltage drop If the voltage drop is. Troubleshooting Tips for Voltage Issues above 5 and does not noticeably decrease as you get closer to the first device on the cir. cuit then the problem is between the first device and the panel Visually check the termina. WARNING Do not exceed the unit s maximum voltage rating of 250VAC tions at the first device the wiring between the device and the panel and the circuit breaker. connections High resistance points can usually be identified as hot spots using an infrared. thermometer or by measuring the voltage across the breaker If the voltage drop exceeds. Measurement Expected Problem Possible Possible 5 but noticeably decreases as you nearer the panel the circuit may have undersized wire. Result Causes Solutions, too long of a cable run or too much current on the circuit Check the wire to ensure that it. Too much load on Redistribute loads is sized per code and measure the current on the branch circuit If a voltage drop reading. the load on circuit on the circuit, changes significantly from one receptacle to the next then the problem is a high impedance. Line Voltage High resistance Locate high resistance. 108 132VAC connection within connection device and. point at or between two receptacles It is usually located at a termination point such as a. 220VAC 198 242VAC, High low the circuit or at repair replace bad splice or loose wire connection but it might also be a bad receptacle. Supply voltage Consult power Troubleshooting Tips for Voltage Drop. too high low company,Measurement Expected Problem Possible Possible.
Current leaking Identify source of leakage Result Causes Solutions. from neutral to multiple bonding points, ground equipment or devices Too much Redistribute the. load on load on,Unbalanced 3 Check load balance, Neutral Ground 2VAC High G N the circuit the circuit. phase system and redistribute load, Voltage Voltage 2VAC Undersized wire for Check code requirements. Triplen harmonics Oversize neutral to High Voltage. Voltage Drop 5 length of run and re wire if necessary. returning on impedance Reduce Drop, neutral in 3 phase harmonic effect via High resistance Locate high. system filter or other methods connection within resistance connection. the circuit or at device and,Supply voltage Consult power.
the panel repair replace,Peak Voltage too high low company. 120VAC 153 185VAC High low High Peak Loads Evaluate number of. 220VAC 280 342VAC peak voltage on line caused by electronic devices on. ASCC Measurement, electronic equipment circuit and redistribute The SureTest calculates the Available Short Circuit Current ASCC that the branch circuit. on line if necessary can deliver through the breaker during a bolted fault dead short condition. High low Supply frequency Consult power, Frequency 60HZ The ASCC is calculated by dividing the line voltage by the circuit s line impedance hot. frequency too high low company, neutral Depressing the side arrow displays the worst case scenario where all three. conductors hot neutral ground are shorted together the neutral and ground provide a. lower impedance via a parallel return path Note that this second test will trip a GFCI See. the following equations for clarification,ND 5481 4 61 164 165 Ins 11 21 06 1 28 PM Page 7.
ASCC1 Line Voltage VHN Hot Neu GFCI Testing, To test the GFCI device the SureTest creates an imbalance between the hot and neutral con. ASCC2 Line Voltage VHN Hot 1 1 Neu 1 Grd ductors by leaking a small amount of current from hot to ground using a fixed value resistor. The test current applied by the SureTest should not be less than 6mA or greater than 9mA. Impedance Z Measurements per UL 1436 A functional GFCI should sense the imbalance and disconnect the power The. If the voltage drop measurement exceeds 5 analyze the hot and neutral impedances If SureTest displays the actual test current in milliamps and trip time in milliseconds. one is significantly higher than the other the problem is with the conductor with the much. higher impedance Then check all connections on that conductor back to the panel If To conduct a GFCI test press the GFCI button to enter the GFCI main menu The GFCI. both impedances appear high the source can be undersized wire for the length of run a symbol in the display should be highlighted as the default test If EPD is lit then use the. bad device or poor connections at the pigtails devices or panel side arrow to highlight the GFCI symbol Then press the GFCI button to activate the. test The actual current being leaked to ground is displayed The TEST icon and hourglass. The ground impedance measured should be less than 1 ohm as a rule of thumb to ensure symbol appear on the display to let the user know that the GFCI test is being performed. that fault current has a sufficient path back to the panel IEEE states the ground impedance The GFCI device should trip within the UL established guideline causing the display to. should be less than 0 25 ohms to ensure the ground conductor can safely return any fault blank out with the loss of power When the GFCI device is reset the unit displays the actual. current which could damage equipment on the circuit Surge suppression systems require trip time that the GFCI took to respond to the current imbalance and open the circuit. a good ground to adequately protect equipment from transient overvoltages Note that a Pressing the down arrow button returns it to the wiring verification mode If the GFCI. small amount of current is applied to the ground conductor to accurately measure its fails to trip the SureTest terminates the test after 6 5 seconds Further inspection should. impedance By the inherent nature of this test a GFCI protected circuit will trip unless the determine whether the GFCI circuitry is faulty the GFCI is installed incorrectly or if the cir. device is temporarily removed from the circuit cuit is protected by a GFCI device. Troubleshooting Tips Impedances UL Guideline 20 1 43 Where T seconds s. Measurement Expected Problem Possible Possible,for trip time T I I milliamps mA. Result Causes Solutions, 0 048 foot Too much load Redistribute the load Notes. of 14 AWG wire on branch circuit on the circuit 1 In order to test a GFCI in a 2 wire system no ground the 61 175 ground continuity. 0 03 foot Undersized wire Check code requirements adapter must be used Connect the alligator clip on the adapter to a ground source. Hot and Neutral of 12 AWG wire High conductor for length of run and rewire if necessary. Impedance impedance,such as to a metal water or gas pipe. 0 01 foot High resistance Locate high resistance 2 All appliances or equipment on the ground circuit being tested should be unplugged to. or 10 AWG wire connection within connection device. the circuit or at and repair replace help avoid erroneous readings. 1 to In addition to performing a GFCI test for evaluating personal protection from shock hazards. protect people Undersized wire Check code requirements the SureTest can also conduct testing to ensure equipment protection from ground faults. for length of run and re wire if necessary, exceeding 30mA The method of operation is the same as the GFCI test noted in the first.
Ground High ground, Impedance 0 25 to impedance paragraph above but uses a different resistor to create a 30mA leakage current from hot to. protect High resistance Locate high resistance, connection within connection device ground To conduct an EPD test on an Equipment Protective Device press the GFCI button. the circuit or at and repair replace to enter the GFCI main menu The GFCI symbol in the display should be highlighted as the. the panel default test Press the side arrow button to highlight the EPD symbol Then press. the GFCI button to activate the test The actual current being leaked to ground is displayed. The TEST icon and hourglass symbol appear on the display to let the user know that the. ND 5481 4 61 164 165 Ins 11 21 06 1 28 PM Page 9, EPD test is being performed The EPD should trip causing the display to blank out with the lightning bolt This non trip condition would suggest. loss of power When the EPD is reset and power is restored the unit displays the actual a A wiring problem with a totally operable AFCI or. trip time that the EPD took to respond to the current imbalance and open the circuit b Proper wiring with a faulty AFCI. SureTest Circuit Analyzer Instruction Manual 5 GFCI AFCI rue RMS S u r e e T s t est alyzer 2 3 4 1 ND 5481 4 61 164 165 Ins 11 21 06 1 28 PM Page 1 3 4 The Voltage V menu displays the True RMS line voltage in real time This main menu has a sub menu positioned horizontally at the bottom of the screen that displays the line voltage RMS HN ground to neutral voltage RMS GN Peak

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