Table 1-1. Model 252 Specifications
Test Frequency: 1kHz ±1%.
Unknown Excitation: The 1kHz voltage (Vx) and current (Ix) levels listed in Table 1-1 are held
constant by an internal amplitude control circuit.
Measurement Rate: Four per second; one second is required for first reading after connecting
unknown to terminals.
Measurement Display: 3-1/2 digit LED with decimal point. Blanked for overload conditions.
Unit Display: Unit of mesurement being displayed by the LED readout is indicated by position
of the range switch, used in conjunction with the desired function button and the
front panel range scale.
External Bias: Rear panel terminals are provided for connection of external supply. 0V to 50VDC,
0.1A maximum. (Read Section 2.2.6 before using external bias.)
Static Charge Protection: Diode and resistor discharge network.
1-2
1.2 SPECIFICATIONS
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