Receptacle Tester
This tool tells you whether or not the 120 volt receptacle you are plugging the LX Series Transformer into is wired properly. Follow the tool manufacturers instruction manual to assure proper wiring on the receptacle you will be using.
Digital Voltmeter
This tool allows you to take important voltage readings at the transformer, at each fixture and at the receptacle the transformer will be plugged into. Dial the digital voltmeter to the 200 ~ setting.
Checking voltage at fixtures
Insert voltmeter probes into each wire connector (Optimum reading between 10.5 and 11.5 V)
Checking voltage at lugs
Each lug should read no more than +/– 0.3 to 0.9 volts of rated output
Checking voltage at plug
Safe voltage reading between 117 and 125 V
Amp Clamp
The amp clamp is both a digital voltmeter and an amp probe combined, and is the lighting professional's tool of choice. This tool can be used to check system voltage, amperage and continuity. It is a most valuable troubleshooting tool that can save you time and frustration. To test amperage on the fluke amp clamp, set the dial to Ã. To test voltage with a fluke amp clamp, set the dial to V~Set amp clamp to Ã. Clamp all wires on each common. Clamp each wires on commons. Check cable specs to compare amp reading with safe loads.
Checking Amperage at Transformer Commons
Set amp clamp to Ã. Clamp all wires on each common. Maximum amp load per common is 15 amps for the LX-150 and 25 amps for the LX-300. If amp reading exceeded, there is either a short in the wiring or a wattage overload on one or more cables installed in the common being tested.
Testing Amperage on single cable
Set amp clamp to Ã. Clamp each wires on commons. Check cable specs to compare amp reading with safe loads.
Testing Amperage at Fixtures
Set amp clamp to Ã. Clamp only one wire lead. This reading will help you determine the wattage rating of the fixture’s lamp.
- 0.8 reading (+/-) = 10 watt lamp
- 1.6 reading (+/-) = 20 watt lamp
- 2.9 reading (+/-) = 35 watt lamp
- 4.1 reading (+/-) = 50 watt lamp
Testing Continuity
Place amp clamp on the Ω setting. Put probes on each side of conductor or lamp pins. If clamp tones or attempts to reach 0.000, there is a continuous circuit. Lamp/cable is good. If clamp does not tone and stays at 1.0 setting, there is a break in the line or lamp is no good.
