limit plunger travel time based on their buffer size

Opentrons · May 7, 2024 · 1135ad9 · 1135ad9
1 parent 74da40c
commit 1135ad9
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/hardware-testing/hardware_testing/liquid_sense/execute.py b/hardware-testing/hardware_testing/liquid_sense/execute.py
@@ -27,6 +27,12 @@
 
 from opentrons.protocol_api import ProtocolContext, Well, Labware
 
+PROBE_MAX_TIME: Dict[int, float] = {
+    1: 2.75,
+    8: 1.75,
+    96: 0.85,
+}
+
 
 def _load_tipracks(
     ctx: ProtocolContext, pipette_channels: int, protocol_cfg: Any, tip: int
@@ -304,7 +310,9 @@ def find_max_z_distances(
     z_speed = run_args.z_speed
     max_z_distance = well.depth + run_args.start_height_offset
     plunger_travel = get_plunger_travel(run_args)
-    p_travel_time = plunger_travel / p_speed
+    p_travel_time = min(
+        plunger_travel / p_speed, PROBE_MAX_TIME[run_args.pipette_channels]
+    )
 
     z_travels: List[float] = []
     while max_z_distance > 0: