Fluke Endurance Series User Manual page 44

11. Subentry: VALLEY HOLD
12. Subentry: DECAY RATE
13. Subentry: SETPOINT
14. Subentry: DEADBAND
15. Subentry: BACKGROUND CONTR
16. Subentry: BACKGROUND TEMP.
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follows the object temperature up to the point, where a new maximum is detected. The
output will hold the maximum temperature value for the preset duration of the peak
hold time. Once the peak hold time expires, the peak hold function will reset and the
output will resume tracking the object temperature until a new peak is reached.
With the ▲ ▼ keys, the range for the peak hold time can be set from 0.1 to 300.0
seconds, whereas just 0.1 - 299.9 seconds will be interpreted as peak hold duration. A
value of 300.0 seconds indicates that peak hold post processing depends on an
external trigger signal. A low-level input signal (pull to GND) at the external input
(Trigger) will promptly interrupt the peak hold function and restarts the peak holding
with the current temperature reading.
The subentry VALLEY HOLD is for the activation of the valley hold function for signal
post processing. A signal valley hold over a set time span will be performed. The output
signal follows the object temperature until a minimum is reached. The output will hold
the minimum temperature value for the selected duration of the valley hold time. Once
the hold time is expired, the valley hold function will reset and the output will resume
tracking the object temperature until a new valley is reached. With the ▲ ▼ keys, the
range for the valley hold time can be set from 0.1 to 300.0 seconds, whereas just 0.1 -
299.9 seconds will be interpreted as valley hold duration. A value of 300.0 seconds
indicates that valley hold post processing depends on an external trigger signal. A low-
level input signal (pull to GND) at the external input (Trigger) will promptly interrupt the
valley hold function and restarts the valley holding with the current temperature reading.
The decay rate is the linear signal decay for a given time span. The unit for decay is in
K/sec, °C/sec or °F/sec. Via the control panel, just the linear signal slope (decay) is
settable.
With the ▲ ▼ keys, you can toggle between decay values from 0 °C/s to 9999 °C/s.
The SETPOINT function is a temperature supervising alarm mechanism, which can be
activated. A setpoint entry defines a maximum supervising value for the target
temperature. If the setpoint value is exceeded, an alarm state will be signaled by a
relays contact. A zero (0.0 °C) entry as a setpoint value deactivates the alarm
functionality (Alarm mode off). To activate the alarm functionality, set the setpoint entry
to a value between the lowest and the highest measurable target temperature. Once
the Setpoint is activated the relay changes state as the current temperature passes the
setpoint temperature. With the ▲ ▼ keys, you can toggle between setpoint values from
"LOW LIMIT" to "HIGH LIMIT" (e.g. 400.0 °C to 1800.0 °C).
Deadband is a zone of flexibility around the setpoint. The alarm does not go abnormal
until the temperature exceeds the Setpoint value by the number of set deadband
degrees. Thereafter, it does not go normal until the temperature is below the Setpoint
by the number of set deadband degrees. The Deadband is factory preset to ± 2° C/F.
With the ▲ ▼ keys, you can toggle between deadband values from 1 °C/F to 99 °C/F.
The BACHGROUND CONTR subentry is a selector, which refers to a temperature
compensation source for the object background, to correct influenced objects
temperature readings.
With the ▲ ▼ keys, you can toggle the selector between "NO COMPENSATION",
"EXTERNAL mA IN" and "TEMP. VALUE", whereas "TEMP. VALUE" refers to the
preset background temperature under subentry: BACKGROUND TEMP.
BACKGROUND TEMP. is to correct the object temperature reading by background
temperature compensation. With the ▲ ▼ keys, you can toggle between background
temperature values from "LOW LIMIT" to "HIGH LIMIT" (e.g. 400.0 °C to 1800.0 °C).
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The control panel menu structure and their associated entries
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Device Control
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