diff --git a/script/local.py b/script/local.py
index 5535978d..f1593464 100644
--- a/script/local.py
+++ b/script/local.py
@@ -259,8 +259,10 @@ diag_channels.append(ChamberPressure)
 diag_channels.append(BeamlinePressure)
 diag_channels.append(ManipulatorTempA)
 diag_channels.append(ManipulatorTempB)
-diag_channels.append(ManipulatorCoolFlow)
-diag_channels.append(ManipulatorCoolFlowSet)
+if get_device("ManipulatorCoolFlow"):
+    diag_channels.append(ManipulatorCoolFlow)
+if get_device("ManipulatorCoolFlowSet"):
+    diag_channels.append(ManipulatorCoolFlowSet)
 diag_channels.append(MonoGrating)
 
 diag_channels = sorted(diag_channels, key=lambda channel: channel.name)