Automation with timer keeps on running

Configuration
1

I have a switch that gives a pulse for one second and then goes to off state to open my slidinggate.
Now i want choose how lang the gate stays open and then auto closes.
I made a timer and two automations.
But as you can see the code runs again everytime there is a pulse so it’s never ending.
How do i do that ?

- id: '1702656970993'
  alias: Openen poort volledig timer start
  description: ''
  trigger:
  - platform: state
    entity_id:
    - switch.poort_volledig_open
    to: 'on'
  condition: []
  action:
  - service: timer.start
    target:
      entity_id: timer.poort_volledig_open
    data: {}
  mode: single
- id: '1702659712089'
  alias: Openen poort timer finished
  description: ''
  trigger:
  - platform: event
    event_type: timer.finished
    event_data:
      entity_id: timer.poort_volledig_open
  condition: []
  action:
  - service: switch.turn_on
    target:
      entity_id: switch.poort_volledig_open
    data: {}
  mode: single

Found it, just added a delay of 2 seconds so the state = off :see_no_evil: