D
ATA
M
AXX
S
ENSORS
R
ECORD
S
WITCH
Overview:
The record switch has a dedicated terminal in the Main module and is actually treated as a sensor that is
either open or closed to ground. You are not required to use this record switch terminal as you have the
option of using the LCD record button or utilizing the software to automatically turn on/off recording
(See Software: Recording)
Installation:
To install a record switch, using the switch supplied by Computech, connect a wire from the Record
input (id #35) to one side of your switch. Connect the other side of the switch to a chassis ground.
Calibration:
The
D
ATA
M
AXX
unit is pre-configured to start recording whenever the record terminal is connected to
ground (which the switch does). If for some reason your record switch does not trigger recording you
will need to open the ‘Calibration/Configuration’ window, click on the configure button for the
‘Record’ channel. In the Basic Settings tab, the type of sensor should be “Switch (Ground is ‘On’)”.
Under the ‘ Record’ tab, select ‘below’ in the Record Automatically section for Warn Level 1
(level should be zero).
Testing:
If you believe your switch is faulty, connect a wire from the record terminal to the chassis ground
screw and recording should begin. If it does not, double check your calibration settings.
Copyright c 2008 Computech Systems Inc. 16