diff --git a/site_ansto/instrument/config/environment/hiden_xcs.sct b/site_ansto/instrument/config/environment/hiden_xcs.sct
index 4d43597a..8c0e8088 100644
--- a/site_ansto/instrument/config/environment/hiden_xcs.sct
+++ b/site_ansto/instrument/config/environment/hiden_xcs.sct
@@ -74,6 +74,7 @@ driver hiden_xcs = {
       property pid_ivalue = 0.1
       property pid_dvalue = 0.0
       property pid_imax = 30
+      property settle_time = 5.250
     }
     var gas_factor = { value = 1.0; }
     control = false
diff --git a/site_ansto/instrument/config/environment/sct_hiden_xcs.tcl b/site_ansto/instrument/config/environment/sct_hiden_xcs.tcl
index 3fffc2fc..043b1a82 100644
--- a/site_ansto/instrument/config/environment/sct_hiden_xcs.tcl
+++ b/site_ansto/instrument/config/environment/sct_hiden_xcs.tcl
@@ -77,10 +77,25 @@ proc ::scobj::hiden_xcs::checkstatus {tc_root} {
     if {[sct driving]} {
       set sp "[sct target]"
       set pv "[hval ${tc_root}/[sct driveable]]"
-      if { ${pv} > ${sp} - [sct tolerance] && ${pv} < ${sp} + [sct tolerance] } {
+      if { abs(${pv} - ${sp}) <= [sct tolerance] } {
+        if { [hpropexists [sct] settle_time] } {
+          if { [hpropexists [sct] settle_time_start] } {
+            if { [sct utime] - [sct settle_time_start] >= [sct settle_time]} {
+              sct driving 0
+              return "idle"
+            }
+            return "busy"
+          } else {
+            sct utime settle_time_start
+            return "busy"
+          }
+        }
         sct driving 0
         return "idle"
       }
+      if { [hpropexists [sct] settle_time_start] } {
+        hdelprop [sct] settle_time_start
+      }
       return "busy"
     } else {
       return "idle"
@@ -819,6 +834,7 @@ proc ::scobj::hiden_xcs::mk_sct_hiden_xcs { sct_controller name tol } {
     hsetprop ${scobj_hpath}/humidity pid_ivalue "0.1"
     hsetprop ${scobj_hpath}/humidity pid_pvalue "0.2"
     hsetprop ${scobj_hpath}/humidity sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/humidity settle_time "5.25"
     hsetprop ${scobj_hpath}/humidity type "drivable"
     hsetprop ${scobj_hpath}/humidity nxalias "${name}_humidity"
 
diff --git a/site_ansto/instrument/util/gen_sct.py b/site_ansto/instrument/util/gen_sct.py
index b3a80fa9..0c841d48 100755
--- a/site_ansto/instrument/util/gen_sct.py
+++ b/site_ansto/instrument/util/gen_sct.py
@@ -967,10 +967,25 @@ def put_checkstatus_function(MyDriver, func):
   txt += ['    if {[sct driving]} {']
   txt += ['      set sp "[sct target]"']
   txt += ['      set pv "[hval ${tc_root}/[sct driveable]]"']
-  txt += ['      if { ${pv} > ${sp} - [sct tolerance] && ${pv} < ${sp} + [sct tolerance] } {']
+  txt += ['      if { abs(${pv} - ${sp}) <= [sct tolerance] } {']
+  txt += ['        if { [hpropexists [sct] settle_time] } {']
+  txt += ['          if { [hpropexists [sct] settle_time_start] } {']
+  txt += ['            if { [sct utime] - [sct settle_time_start] >= [sct settle_time]} {']
+  txt += ['              sct driving 0']
+  txt += ['              return "idle"']
+  txt += ['            }']
+  txt += ['            return "busy"']
+  txt += ['          } else {']
+  txt += ['            sct utime settle_time_start']
+  txt += ['            return "busy"']
+  txt += ['          }']
+  txt += ['        }']
   txt += ['        sct driving 0']
   txt += ['        return "idle"']
   txt += ['      }']
+  txt += ['      if { [hpropexists [sct] settle_time_start] } {']
+  txt += ['        hdelprop [sct] settle_time_start']
+  txt += ['      }']
   txt += ['      return "busy"']
   txt += ['    } else {']
   txt += ['      return "idle"']