How to avoid bar chart from going down


I have a bar chart for which datasource is Prometheus. The scrape interval given in Prometheus configuration for the exporter is 10m. What configuration to be used in Grafana panel to make graph to stay on screen continuously.
I tried with below configuration with that graph stays on screen for 3 hrs, but goes down for 1 hr.
Min time interval = 14m
Min step=12m
Time shift=12m