Vaisala PTB330 - Manual (Page 63)

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 61
8. Select Relay enable. Press the ON/OFF button to
enable/disable the relay.
9. Press EXIT to return to the basic display.
See section Relay Setpoints on page 93 for more information on the
relay setpoints.
Testing the Operation of Relays
NOTE Testing activates relays even if they are disabled.
Use the module push buttons to activate the relays. Press the REL 1 or
REL 2 button to activate the corresponding relay.
Relay is activated: led is lit
Relay is not activated: led is not lit
Use the display/keypad to test the operation of relays:
1. Open the MAIN MENU by pressing any of the arrow buttons.
2. Select System, press the right arrow button.
3. Select Diagnostics, press the right arrow button.
4. Select Relay tests, press the right arrow button.
5. Select Relay Output Status, press SHOW to see the active
relay or relays. Press OK to return to the previous level.
6. Select Test relay 1 to test the output of relay 1. Press ON/OFF
to activate/deactivate the output. Press OK to go back to normal
operation.
7. Select Test relay 2 to test the output of relay 2. Press ON/OFF
to activate/deactivate the output. Press OK to go back to normal
operation.
8. Press EXIT to return to the basic display.