West Control Solutions TB 45 Temperature Monitor - Manual (Page 26)

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With O 2 measurement, specification if parameters related to the measured value should be output in ppm
or % is required. This is done centrally during configuration.
othrr O2 0 unit: ppm
1 unit: %
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Whether the temperature of the non-heated
l probe is entered in °C, °F or K can be selected during
configuration.
othrr Unit 1 °C
2 °F
3 K
Displays
With configuration for O
2
measurement (see above), the oxygen content is dis-
played as process value with the selected unit (see above) on line 1. Max. 4 char-
acters can be displayed.
With display range overflow, “
EEEE” is displayed .
Example: the ppm range is selected, but the value is a % value.
When exceeding the display span start, 0 is displayed.
+
Tip: the unit can be displayed on line 2.
6.6 Limit value processing
The main alarm acts on the process value and is firmly allocated to relay output LC the output action of which is set to
inverse continuously. With the temperature monitor function, the limit value is adjusted by means of parameter LC.
With the limit signaller function, the limit value is adjusted via
L.1 / H.1. The limit value switching difference
HYS.1 is adjustable.
Max. two further limit values can be configured as pre-alarms and allocated to the individual outputs Out.2....
Out.3.
Several signals assigned to an output are logically ORed.
g
The signal to be monitored can be selected separately for each alarm via configuration. The following
signals are available:
Main alarm LC
• Process value (display value)
Pre-alarms Lim.2 / Lim.3
• Process value (display value)
• Measured value INP1
•
Measured value INP2 (optional)
Functions
26 Limit value processing TB 45
20.95
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