Signal Output

Signal attenuation

Note: If a self• ZERO determination is performed on an active signal exceeding the maximum permitted setpoint value for ZERO (see

User•defined ZERO

setpoint), the maximum setpoint value is assigned

and the message

SIG 1 (or 2) ZERO TOO HIGH is displayed.

User-defined ZERO setpoint

If the self• ZERO setpoint value determination is not appropriate for a particular application, any value from -830000.0through 830000.0 may be entered at the keyboard.

Entering a value less than the self• ZERO value shifts background baseline upward (but at the expense of available output range); for example, to capture negative peaks, or to compensate for negative baseline drift.

Signal attenuation

Analog signal output levels (+1 mV or +1 V outputs) for either signal

channel (controlled by SIG 1 , and by SIG 2 if Option 550/Accessory

19242A or Option 560/Accessory 19254A is installed) are attenuated via

RANGE 2!( ) and ATTN 2!( ) .

For RANGE 2!( ) , each step to a higher setpoint value decreases the output signal level by a factor of 2 (half the previous level). Also, RANGE 2!( ) affects signal level at both the +1 V and +1 mV analog outputs.

Signal

+1 V Output Level =

RANGE 2!( )

2

ATTN 2!( ) affects only the +1 mV analog output: each step to a higher value reduces the output signal level (as defined by RANGE 2!( ) ) by half.

 

Signal

+1 mV Output Level =

 

RANGE 2!( )

ATTN 2!( )

2

} 2

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