INSTRUMENT MANUAL
VACUUM GAUGE MODEL MM200
160Phone:(215) 947-2500 fax:(215) 947-7464 e-mail:sales@televac.com web site:www.televac.com
MM-200_im REV M
Page 85 of 160
"EL<cr>" 2. End the leak rate test. This command causes the leak rate test to cease, the
same as the front panel push button would do if pressed while the leak rate
test is in progress. The response to this command is "A<cr>".
"LR<cr>" 3. Initiate Leak Rate testing. The results are the same as pressing the front
panel "leak rate" push button. Whenever this command is issued the leak
rate test starts at time "zero". This command can be used for resetting the
test time to "zero", if the test is already in progress. The front panel display
responds the same as if the front panel push button had been pressed, that
is, the right hand display shows the leak rate values. It differs in that if the
unit is in the leak rate test, pressing the front panel push button will toggle the
leak rate test off. The response to this command is "A<cr>". Leak rate tests
always use station #1 as the sensor, and displays in the right hand window.
"RL<cr>" 4. Periodically obtain Leak Rate readings. This command causes the modular
unit to periodically output the leak rate reading. The data is in the form of four
digits, which include any lead zeros, followed by a carriage return such as
"0015<cr>". The four digits give the leak rate in microns per hour (the same
as displayed on the front panel). The data is outputted once every second.
The initial response to this command is "A<cr>".
None of the leak rate functions above are available when in the burst mode. If
any are in effect upon entering the burst mode, they are cancelled.
OUTPUTS
"RF<cr>" 1. Disable Recorder Outputs. This command disables the recorder outputs. This
provides a slight reduction of response time when in the "burst" mode. The
voltage at the recorder output terminals are then undetermined.
"RN<cr>" 2. Enable Recorder Outputs. This command restores the recorder outputs to
normal.
"Rssf<cr>" 3. Set recorder output of a particular type sensor to a particular format. Where
"ss" is the sensor type and "f" is the format. See the list under "Command
Summary" for available formats.
SET POINTS
"CPn<cr> Clear setpoint values for relay"n".
"PCA<cr>" 1. Control all relays via the communications interface. In order for a relay to be
controlled via the communications interface, its contro
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