Honeywell Minitrend QX, Руководство пользователя

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43-TV-25-30 Iss.6 GLO Aug 07 UK 55
• Range (Ohms, Volts and Amps only) - Toggle between Preset and User Defined. The
Preset option will make available a list of Range Types or select User Defined to specify
High and Lower Limits.
• Range Type (Ohms, Volts and Amps only) - Only available when Range is set to Pre-
set. Select for a list of available ranges. The factory default range is +/-12V.
See
“User Defined Maximum Input Ranges” on page 256
• Damp Level - The damping filter is an advanced algorithm offering improved response
over more traditional methods. It works by producing configurable levels of damping -
but at the same time being able to respond rapidly to large input changes. Enter the
Damp Level in Engineering Units.
• Linearisation Tables (Ohms, Volts and Amps only) - Select a table from the drop down
list if required.
See “Linearisation Tables” on page 61.
• Use Pen Scale - Toggle On and Off, this is enabled by default. Analogue # defaults to
the corresponding Pen #, eg. A1 will default to Pen 1. If you change A1 to display
another pen scale eg.Pen 3, you must go into Pen 3 and change the maths to A1. This
will ensure that Pen Scale 3 will display A1 input. With this enabled the Engineering
zero and span is the same as the pen scale. Disable this and the Engineering zero and
span will not reflect the pen scale. When disabled, see Eng. Span % Eng Zero.
This is not available when using Linearisation Tables.
• Units - (Ohms, Volts and Amps only). This is the Units of Measurement for each input.
Select and enter a value. Max 13 characters. For Thermocouple and Resistance Ther-
mometer units, see
“Localisation” on page 107
.
Figure 4.2 Effects of Damping and Rolling Average example
Input signal
(Pen 67)
Damping on input signal
(Pen 10)
Rolling Average of input signal
(Pen 11)
Note: the Damping (Pen 10) has been offset for this
example to be able to see the damping effect clearly