Front Panel Summary

Signal Inputs

Single Ended (A), True Differential (A-B), or Current (I)

Signal Filters

Bandpass:

Q-of-5 Auto-tracking filter (In or Out)

 

Line Notch:

Q-of-10 Notch Filter at line frequency (In or Out)

 

2XLine Notch: Q-of-10 Notch Filter at twice line frequency (In or Out)

Sensitivity

Full scale sensitivity from 100 nV to 500 mV RMS for voltage inputs

 

or from 100 fA to 500 nA RMS for current inputs.

Dynamic Reserve

Select

Dynamic Reserve

Stability

Sensitivity Ranges

 

LOW

 

20 dB

5 ppm

1 V to 500 mV

 

NORM

 

40 dB

50 ppm

100 nV to 50 mV

 

HIGH

 

60 dB

500 ppm

100 nV to 5 mV

Status Indicators

OVLD

Signal Overload

 

 

 

UNLK

PLL is not locked to the reference input

 

ERR

Illegal or Unrecognized command

 

ACT

RS232 or GPIB interface Activity

 

REM

Remote mode: front panel has been locked-out

Display Select

X

Signal Amplitude at the selected phase (AcosØ)

 

OFST

Display the offset which is being added to the signal output

 

NOISE Compute and display the noise on the signal

Analog Meters

Displays Signal, Offset, or Noise as a fraction of full scale

Output LCD's

Displays Signal, Offset, or Noise in absolute units

Output BNC's

Output follows Analog Meter, ± 10 V for ± full scale

Expand

Multiplies the Analog Meter and Output voltage by a factor X1 or X10.

REL

Set the Offset to null the output: subsequent readings are relative readings.

Offset

Enables or Disables Offset, and allows any offset (up to full scale) to be entered.

Time Constants

Pre-filter has time constants from 1 mS to 100 S (6 dB/Octave)

 

Post-filter has time constants of 0, 0.1 or 1.0 S (6 dB/Octave)

ENBW

Equivalent Noise Bandwidth. Specifies the bandwidth when making Noise

 

measurements. (1Hz or 10 Hz ENBW)

 

Reference Input

1 MInput, 0.5 Hz to 100 KHz, 100 mV minimum

Reference Trigger

Trigger on rising edge, zero crossing, or falling edge

f/2f Mode

PLL can lock to either X1 or X2 of the reference input frequency

Phase Controls

Adjust phase in smoothly accelerating 0.025° steps, or by

 

90° steps. Press both 90° buttons to zero the phase.

Reference LCD

Display reference phase setting or reference frequency

Power Switch

Instrument settings from the last use are recalled on power-up

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