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Open and Short Circuit test:
1. Turn the rotary switch on the Emitter Unit to “Test”.
2. Press the “Function” button on the Emitter Unit for 2 seconds. The “Verify” LED
will change from ashing to steady state.
3. Insert the RJ11 to Crocodile Clip lead into the RJ11 socket of the Emitter Unit.
4. Connect each end of the cables under test to the Crocodile Clips.
5. If a Short Circuit is present on the cable the LED in position 1 will light up.
6. If no Short Circuit is present on the cable, i.e. Open Circuit, no LED will light up.
7. When the LED is lit up, an indication of the resistance on a cable is given by the
brightness of the LED. The brighter the LED the lower the resistance.
DC Level test:
1. Turn the rotary switch on the Emitter Unit to “Scan”.
2. Press the “Function” button on the Emitter Unit for 2 seconds. The “Status” LED
will turn o and the “Verify” LED will begin ashing.
3. Insert the RJ11 to Crocodile Clip lead into the RJ11 socket of the Emitter Unit.
4. Connect each end of the terminal under test to the Crocodile Clips.
5. If the “Status” LED lights up in RED, it means that the red crocodile clip is
connected to the positive of the DC supply.
6. If the “Status” LED lights up in GREEN, it means that the red crocodile clip is
connected to the negative of the DC supply.
7. The DC level can be judged by the brightness of the LED.
Detecting a signal on a Telephone line:
1. Turn the rotary switch on the Emitter Unit to “Test”.
2. Press the “Function” button on the Emitter Unit for 2 seconds. The “Verify” LED
will change from ashing to steady state.
3. The Telephone cable with a RJ11 plug is inserted into the RJ11 Socket of the
Emitter Unit, (or the RJ11 to Crocodile Clip lead can be used if required).
4. The LED in position 1 will light up if the signal on the telephone line is normal.
Low Voltage Alarm:
1. Turn the rotary switch on the Emitter Unit to “Scan”.
2. If the battery voltage is less than 6.0V, the “Status” and “Verify” LED’s will light up.
3. This indicates that a new battery is required.
Headphones:
If a test is being carried out in a noisy environment, or where the audio tone from the
receiver will be an inconvenience to others, the headphones supplied can be used.
Plug the headphones into the headphone socket on the left hand side of the
Receiver Unit.
Other Functions
