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METIS M308 / M309 / M313 / M316 / M318 / M323 / H309 / H316 / H318 (12-pin)
Configuring the Pyrometer
28
6.3.6 Temperature Sub Range
The temperature range can be scaled down in order to adapt it to specific measurement conditions
(minimum range 51°C), e.g. to configure the automatic clear function of the maximum value storage
(see
6.3.7 Temperature Unit
The temperature display can optionally be displayed in °C or °F.
6.3.8 Analog Output
The 2 analog outputs can be set separately:
Depending on the connected devices to
0
–20 mA
or
4
–20 mA
Analog output 1
always provides
-
The measured temperature (the temperature displayed on the device and in the control window of
SensorTools
; see
Control window
).
(
Note:
With older firmware versions, the same settings are possible as at analog output 2. A firm-
ware update to the latest version eliminates this possibility and prevents, that the output of analog
output 1 is accidentally different to the displayed temperature signal. Firmware update see section
Analog output 2
can be assigned to provide different signals:
-
Measured temperature: Temperature of the device display or control window in
SensorTools
-
Device temperature:
Internal device temperature output
-
Control output:
Manipulated variable on models with PID controller
-
No output
No signal is on the output
6.3.9 Test Current
On the device itself and via software a test current can be set to the output. Via software this current is
adjustable, on the pyrometer the current is fixed to 10 mA (at 0
–20 mA) or 12 mA (at 4–20 mA).
6.3.10 Upscale-Burnout
(only via software
SensorTools
)
In case of sudden shadowing of the pyrometer
’s visual field, the output current is set to 20 mA instead
of usually the lowest.
Disabled Upscale-burnout
(standard)
:
The analog ou
tput at sudden shadowing of the pyrometer’s
view field is the lowest current (0 or 4 mA).
With
enabled upscale-burnout
function, the analog output at sudden shadowing of the pyrometer’s
view field is set to the maximum current of 20 mA. This can be desirable, for example, in a furnace
monitoring when the controller otherwise would recognize a cold oven and heat up fully and possibly
burn out the oven.