Keithley 2700, User Manual, Page: 228 / 500

Model 2700 Multimeter/Switch System User’s Manual Scanning 7-15
Advanced scan setup notes
1. The CHAN annunciator is on while in the scan setup menu.
2. For some channel-specific setups, you have to configure them from a menu. For
example, to set up and enable mX+B, you have to use MATH menu. While in that
menu, the CHAN annunciator will flash to indicate that you are editing the mX+b
math setup for that channel in the scan list. When you exit from the mX+b setup
menu, the CHAN annunciator stops flashing.
3. Paired channels — A paired channel function or operation can only be selected for
a primary channel. For the Model 7700, channels 1 through 10 are the primary
channels. Trying to select a paired channel function or operation for channels 11
through 22 will result in “INVALID CHAN.”
4. Function changes — When you press a function key, the selected channel assumes
the mainframe setup for that function. Also, available channels (for the specified
slot) that follow will also assume that setup. Model 7700 example: If you press
DCV for channel 101, channels 101 through 120 will assume the DCV setup. Note
that channels for slot 2 are not affected.
When you press the
Ω
4 function key for a primary channel, the subsequently paired
channels will be displayed briefly. Model 7700 example: If you press
Ω
4 for channel
108, channels 109 and 110 will also assume the
Ω
4 function, and the message “118-120
PRD” will be displayed to indicate the paired channels.
A channel that is paired to a primary channel is not affected by function changes.
Model 7700 example: Assume channel 102 is paired to channel 112. Now select channel
103 and press DCV. All following channels, except channel 112, will assume the DCV
setup. Channel 112 remains paired to channel 102. However, if you select channel 101
and press DCV, channel 102 will change to DCV and not be paired to channel 112
anymore. Therefore all 20 channels will assume the DCV setup.
5. Setting changes — When you press a key to change a setting (i.e., range, rel, digits,
etc.), only the selected scan channel is affected. Model 7700 example: If you make
a range change for channel 103, the range settings for other channels are not
affected.
NOTE Only one USER RTD per scan list.