fixes on 2023-11-27

- ls372 autorange: wait one sec. more for switching
- keep only one channel, even after target is reached
- intermediate target only when T is raise, but not when lowered

frappy_psi/ls372.py

@@ -231,7 +231,7 @@ class ResChannel(Channel):
     def _read_value(self):
         """read value, without update"""
         now = time.monotonic()
-        if now + 0.5 < max(self._last_range_change, self.switcher._start_switch) + self.pause:
+        if now - 0.5 < max(self._last_range_change, self.switcher._start_switch) + self.pause:
             return None
         result = float(self.communicate('RDGR?%d' % self.channel))
         if result == 0:
@@ -241,7 +241,7 @@ class ResChannel(Channel):
             return None
         if self.autorange:
             self.fix_autorange()
-            if now + 0.5 > self._last_range_change + self.pause:
+            if now - 0.5 > self._last_range_change + self.pause:
                 rng = int(max(self.minrange, self.range))  # convert from enum to int
                 if self.status[0] < self.Status.ERROR:
                     if abs(result) > self.RES_SCALE[rng]:
@@ -386,6 +386,10 @@ class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
     htrrng = Parameter('', EnumType(HTRRNG), readonly=False)
     _control_active = False
 
+    def doPoll(self):
+        super().doPoll()
+        self.set_htrrng()
+
     @Command
     def control_off(self):
         """switch control off"""