
Enrange XLTX Intrinsically Safe
Transmitter Instruction Manual
April 2014
Page 15 of 24
3.2.1
Turning On the Transmitter
First, the Machine Stop switch must be in the raised position (pulled out). Next, push the OFF-
ON-START toggle switch to the START position and release it once the Status LED lights up as a
solid green color. Following the Status LED turning on and illuminating green, the unit will
perform a routine initialization.
During initialization, the XLTX scans for any switches or motions that may be on during power up.
If any switches or motions are on, the failure will be displayed as a solid red Status LED, and then
the XLTX will power itself down.
After a successful initialization, the XLTX will enter normal operation mode and display the normal
operating status LED indications. See Section 3.5 for more information on the normal operation
mode with standard status LED.
3.2.2
Pulling In the Machine Stop Relay
Once the XLTX has been turned on (as described in Section 3.2.1) and in the Normal Operating
Mode, the Machine Stop relay in the receiver can be pulled in by pushing the OFF-ON-START
toggle switch to the START position and then releasing.
NOTE: You must release the OFF-ON-START switch to the ON position after the unit is powered
up, then push to the START position a second time to pull in the Machine Stop relay.
3.2.3
Turning Off the Transmitter
The transmitter can be turned off by pressing the OFF-ON-START toggle switch down to the OFF
position. Once turned off, the MLC relay in the receiver is immediately opened.
NOTE: Depressing the Machine Stop switch will also turn the transmitter off and open the
Machine Stop relay in the receiver. See Section 3.3 for more information on the Machine Stop
switch.
3.3
MACHINE STOP SWITCH (For Emergency Stopping Only)
When depressed, the Machine Stop relay in the receiver is immediately opened.
Under normal operating conditions, the Machine Stop switch must be in the raised position or the
transmitter and system will not operate.
NOTE: The Machine Stop Switch is to be used for emergency stopping only, not for normal
system shut down.
3.4
STATUS LED
The standard XLTX transmitter includes a status LED to let the operator know that the unit is
functioning and if the battery level is low.
3.5
NORMAL OPERATING MODE
In normal operating mode, the XLTX displays real time information relating to the operation of the
transmitter via LEDs.
3.5.1
Watch Dog Indicator (Steady Blinking Status LED)
The blinking LED represents the watch dog timer within the CPU of the unit.