need help with Marconi TF2700 universal bridge

Hi,

Although the TF2700 is a basic LCR bridge, it can give you 'loss angle' and 'Q' figures that can't be obtained from many of the current range of DVMs with attitude. So email me your postal address and I'll send you a copy of the manual. Meanwhile to check the instrument, here are the steps for measuring a capacitor. As you would need to connect a polarising voltage to the instrument to measure electrolytics correctly, it is better for the time being not to bother. Also, in case you are wondering, the meter only swings between centre and right full-scale for capacitors and inductors. 1. Connect the component to the test terminals. 2. Select the range full-scale, appropriate to the expected value of capacitance, with the FUNCTION and RANGE MULTIPLIER SWITCHES. 3. Set the D-Q switch to D x 0.1. 4. Set the LOSS BALANCE control to 1, and the SENSITIVITY control to give a meter deflection of less than full-scale. 5. Balance the bridge with the main BALANCE and LOSS BALANCE controls, increasing the sensitivity to keep the meter deflection above zero until the SENSITIVITY control is fully clockwise. Cheers - Joe

Thanks for your good help joe, looks will try it.