User manual IDEAL ND2292

[. . . ] For use in 3-prong (grounded) outlets, inset the ST-1THD into the receptacle with the ground pin extended. For use in 2-prong (non-grounded) outlets, leave the ground pin retracted. In non-grounded (2-prong) outlets many of the tests will be non-functional due to an absence of ground. 2 WARNING Do not use on outputs from UPS systems, light dimmers or square wave generating equipment. [. . . ] 7 8 GFCI Menu (continued) · Menu Heading - "GFC=" · Measurement at Menu Heading - None · Submenu - No Pressing the display advance button for three seconds will activate the GFCI test. The ST-1THD applies 6mA to ground through a fixed resistor to trip the GFCI. The tester will display the calculated time to trip, apply the current and count up to the calculated time. · If the GFCI is functioning properly, the circuit will disconnect, and the LED display on the ST-1THD will go out. When the circuit is reset, and power is returned, the LED display will show the actual time to trip. · If the GFCI fails to trip, the LED display will show "bAd", which indicates that the GFCI may be installed incorrectly, or the GFCI may be defective. It is important to note that pressing the blinking "rCL" to exit viewing recorded data stores new data into permanent memory. If you wish to maintain the stored data, but want to return to standard operation mode, unplug the SureTest and re-insert it into the receptacle. · Menu Heading - "rCL-" · Measurement at Menu Heading - None · Submenu - yes Blinking "rCL" - Allows access to stored values from memory "Sto" - Stores values into memory Harmonic Wave Form Testing To access the harmonic wave form programming menu, press the display advance button and insert the ST-1THD into the receptacle. The LED display cycles between the menu heading, and the measurement every four seconds. Press and hold the display advance button for one second to move to the menu. To enter the submenu, press the display advance button for three seconds. To navigate from measurement to measurement within the submenu, press the display advance button. While in the submenu, pressing and holding the display advance button for three seconds brings the unit back to the menu structure. Press the display advance button and insert the ST-1THD into the receptacle 2. The LED display shows "HAr" indicating self-calibration of the unit 3. Line Voltage Harmonics Menu · Menu Heading - "LH-" · Measurement at Menu Heading - None · Submenu - yes "h3=" - % THD at 3rd harmonic "h5=" - % THD at 5th harmonic "h7=". . . "h15" - % THD is given for every odd harmonic to the 15th harmonic "bAL=" - Total of the remaining %THD from the 17th to 31st harmonic % Neutral Current THD Menu · Menu Heading - "nt-" · Measurement at Menu Heading - % Neutral Current THD · Submenu - yes "Hi=" - Highest % THD "Lo=" - Lowest % THD "A=" - Average % THD "nC=" - Crest factor of the neutral current Neutral Current Harmonics Menu · Menu Heading - "nC-" · Measurement at Menu Heading - None · Submenu - yes "h3=" - % THD at 3rd harmonic "h5=" - % THD at 5th harmonic "h7=". . . "h15" - % THD is given for every odd harmonic to the 15th harmonic "bAL=" - Total of the remaining %THD from the 17th to 31st harmonic bAL= nt% Neutral Current THD Hi= Lo= A= nC= Neutral Current Harmonics h3= h5=Öh15= bAL= nH- Frequency Value rCL= Recall Memory Blinking rCL SureTest is Recording Data Sto Recording Completed 11 12 Line Frequency Within this menu selection, the ST-1THD displays the line frequency of the current. Recall Memory Menu (Event Recording) Stored data can be viewed from the Recall Memory menu. Pressing the display advance button for three seconds enters the submenu. The submenu is identified by a blinking "rCL" on the LED display. Once in the submenu, pressing the display advance button gives access to the stored values from memory. While stored values are being displayed, the LED will blink to differentiate these values from the "live" values being captured in standard testing mode. Navigating through the outlet circuit testing menu while in recall memory mode is identical to navigation through the menu in standard operation. [. . . ] #61-158 Circuit/Harmonics Analyzer kit includes both the #61-157 Circuit/Harmonics Analyzer and the #61-181 500AAC Clamp Adapter in one convenient package. Troubleshooting Locating Loose (High Resistance) Connectors and Splices Troubleshooting Tips Problem High/Low Line Voltage Possible Causes/Solutions · Too much load on branch - also causing excessive voltage drop · Poor connection at receptacle · Supply voltage too high/low · Clean and tighten receptacle connections · Consult power company · Too much load on branch · Too many outlets on branch · Diameter of wire too small · Check and tighten connection at receptacle · Clean any corroded wires · Replace outlet, switch · Replace circuit breaker · Current flowing in the neutral conductor · Locate/repair source · Install surge suppression · Loose ground connection · Check and tighten ground connections · Clean any corroded wires · GFCI may be installed incorrectly · GFCI may be defective · Check for proper connections · Replace outlet High Voltage Drop (5% recommended by NEC) Loose connections, splices and bad connections can be isolated by using the SureTest to test receptacles in sequence along the branch circuit. For example if the voltage drop at receptacle 5 is unacceptable, checking the other receptacles in the branch can help isolate the problem. If receptacles 1 through 4 and 6 through 8 check out OK, than further investigation should take place at the connection to receptacle 5. [. . . ]