diff --git a/db/channels.db b/db/channels.db
index df3b66b..069113c 100644
--- a/db/channels.db
+++ b/db/channels.db
@@ -102,7 +102,7 @@ record(calc, "$(INSTR)$(NAME):CH$(CHANNEL)_STS_RAW")
  field(INPA, "$(INSTR)$(NAME):STATUS NPP")
  field(INPB, "$(INSTR)$(NAME):CH$(CHANNEL)_CLEARED NPP")
  field(INPC, "$(INSTR)$(NAME):CH$(CHANNEL)_SET NPP")
- field(CALC, "A == 1 || B || C")
+ field(CALC, "(0 < A && A < 4) || B || C")
  field(FLNK, "$(INSTR)$(NAME):CH$(CHANNEL)_STS")
 }
 
diff --git a/db/time.db b/db/time.db
index 54a3094..1140620 100644
--- a/db/time.db
+++ b/db/time.db
@@ -81,7 +81,7 @@ record(calc, "$(INSTR)$(NAME):T_STS_RAW")
  field(DESC, "Raw time channel status")
  field(INPA, "$(INSTR)$(NAME):STATUS NPP MS")
  field(INPB, "$(INSTR)$(NAME):T_CLEARED NPP")
- field(CALC, "A == 1 || B")
+ field(CALC, "(0 < A && A < 4) || B")
  field(FLNK, "$(INSTR)$(NAME):T_STS")
 }