diff --git a/superxas_bec/devices/timepix/timepix.py b/superxas_bec/devices/timepix/timepix.py
index f6d2168..c80a9cf 100644
--- a/superxas_bec/devices/timepix/timepix.py
+++ b/superxas_bec/devices/timepix/timepix.py
@@ -419,7 +419,7 @@ if __name__ == "__main__":  # pragma: no cover
         timepix.wait_for_connection(all_signals=True, timeout=10)
         timepix.on_connected()
         print("Timepix connected and initialized.")
-        for exp_time, frames_per_trigger, runs in zip([0.003, 0.005, 0.1], [40, 20, 10], [5, 3, 2]):
+        for exp_time, frames_per_trigger, runs in zip([0.003, 0.5, 1], [40, 20, 5], [5, 3, 2]):
             print(
                 f"Running scan with exp_time={exp_time}, frames_per_trigger={frames_per_trigger}, runs={runs}"
             )
@@ -452,9 +452,11 @@ if __name__ == "__main__":  # pragma: no cover
                         if time.time() - start_time > 30:
                             print("Breaking loop manually after 30 seconds of waiting.")
                 print(f"Received number of messages: {len(timepix.backend.msg_buffer)}")
-                print(
-                    f"Shape of signal {timepix.tds_energies.get().signals[timepix.tds_energies.name]['value'].shape}"
-                )
+                if timepix.tds_energies.get() is not None:
+                    # msgs.append(timepix.backend.msg_buffer)
+                    print(
+                        f"Shape of signal {timepix.tds_energies.get().signals[timepix.tds_energies.name]['value'].shape}"
+                    )
             status = timepix.complete()
             print("Waiting for timepix to complete.")
             status.wait(timeout=10)