PRECISION DIGITAL pd6300, Инструкция по эксплуатации

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Model PD6300 Pulse Input Rate/Totalizer Instruction Manual
43
Error Message (
Error
)
An error message indicates that the calibration or scaling process was not
successful. After the error message is displayed, the meter reverts to
input 2 during calibration or scaling, allowing the appropriate input signal
to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected
backwards.
2. Minimum input span requirements not maintained.
3. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum allowed input span is 1.0 Hz, which is the minimum difference
between input 1 and input 2 signals required to complete the calibration or
scaling of the meter.
Gate Function (
Gate
)
The gate function is used for displaying slow pulse rates. Using the
programmable gate, the meter is able to display pulse rates as slow as
1 pulse every 999.9 seconds (0.001 Hz). The gate function can also be
used to obtain a steady display reading with a fluctuating input signal.
The gate function (
Gate
) is the first option in the Advanced Features
menu. There are two settings for the
Gate
, low gate (
Lo G
) and high gate
(
Hi G
).
Low Gate (
Lo G
)
For most applications, low gate setting should be left at 1.0 second.
Increase low gate setting to obtain a steadier rate display. The rate
display will update in accordance with the low gate setting, for example if
low gate is set at 10.0, the display will update every 10 seconds;
changes in rate between updates will not be reflected until next display
update.
High Gate (
Hi G
)
Set the high gate value to correspond to the highest expected pulse
period (lowest pulse rate). For instance if the meter must display a rate
when there is 1 pulse coming into the meter every 10 seconds, set the
high gate to 11.0 seconds. When the signal is removed from the meter,
the display will show the last reading for 11 seconds; then it will read
zero.