Analog Input Mode - KPM PROCESS SENSORS METIS M311 Operating Manual

Setpoint limit 1 /
Setpoint limit 2:
Setpoint band
Controller active
Successful control
Switch value Hysteresis
500,0 °C
Logic
NO NC
Time settings
Reference
(with material contact,
limit switch contact, set-
point limit 1, setpoint limit
2 and setpoint band)
7.1.5.8.3

Analog Input Mode

for external adjustment of some parameters between their smallest and largest setting value.
Functions
No Function
Ɛ2/ Ɛ1, Emissivity Ɛ
44 / 81
(only devices with PID controller) The setpoint limit is a limit temperature
above or below the setpoint temperature that should not exceeded or to be
below. Two setpoints can be defined. The output is activated if the measured
value exceeds the defined setpoint value.
The output is also activated if the measured
value falls below the defined value. Entry of the
setpoint value has to be done relative to the set-
point, positive or negative, e.g. 20°C if the set-
point value is 800°C and the output should be
active at 820°C. Values will be entered in the PID controller form (see 7.4).
(only devices with PID controller) The
setpoint band is composed of the 2 set-
point limits and defines a range within
the temperature has to be. The output
is activated if the measured value is
outside the defined value.
(only devices with PID controller) Output is active when the controller is ac-
tive.
(only devices with PID controller) Output is active when a control process is
terminated (a possibly hold time has elapsed).
▪ Switching value: Activates the output at the entered value.
▪ Hysteresis: The hysteresis indicates by how many degrees below the en-
10,0 °C
tered switching value it is switched back again.
Switching logic of the outputs:
NO (Normally Open): Outputs have in
▪ active state 24 V
▪ inactive state 0 V
NC (Normally Closed): Outputs have in
▪ active state 0 V
▪ inactive state 24 V
Activation time:
▪ "immediately" (0) activates the output imme-
diately when the event occurs.
▪ Time specification (0.001 – 65.534 s): Activa-
tion is delayed accordingly.
Hold time:
▪ None: Signal is only active during the function.
▪ Time entry (1–65534 ms): For the entered time the output is kept longer
active than the original signal.
The 2-color temperature or that of a channel can be
used to activate the output. If the measurement tem-
perature is selected, the selected temperature is al-
ways used as the reference.
Description
A current signal at the input has no effect.
The emissivity slope or the emissivity for 1-color measurements can be adjusted
externally.
METIS M311 / M322 / H311 / H322 (12-pin device connector)
Setpoint limit 1
Setpoint band
Measured value
Setpoint limit 2
Example