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Page 5-13
Chapter 5 Programming
5.6.5.5 Decimal fix
Certain points must be assigned a decimal place of up to four places or scientific notation. The choices are:
0 = X
(no decimal places)
1 = X.X
2 = X.XX
3 = X.XXX
4 = X.XXXX
5 = Scientific Notation (Decimal places affect displayed point data values only)
To program the Decimal fix:
From the Point Setup menu use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Decimal fix
and press the
ENTER
button. You will be prompted with “places? X”. Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to set the
desired number of decimal places and press the
ENTER
button to return to the Point Setup menu.
NOTE:
Thermocouple (T/C) points must be assigned a decimal place of either 1 or 0. This enables
temperature to be displayed with a resolution of either 1 degree (0) or 0.1 degree (1).
5.6.5.6 Filter
The digital Filter smooths noisy or erratic signals by attenuating the effects of sudden transitions. The
digital Filter is programmable from 0 to 30 seconds in one second increments (nominal).
To program the digital Filter:
From the Point Setup menu use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Filter
and press the
ENTER
button. You will be prompted with “seconds
Î
XX
Í
. Use the numeric keypad to enter the required number
of seconds (maximum 30) and then press the
ENTER
button to return to the Point Setup menu.
5.6.5.7 Compensation
Thermocouple Compensation can be Local, from the cold reference junction temperature sensor built into
the Recorder, or External through a direct input. When thermocouples are compensated Locally, the
temperature sensor (located on the rear terminal panel of the Recorder) measures the ambient
temperature of the cold junction. For remote compensation, a single Thermocouple or RTD can be used to
measure the ambient temperature of the remote junction box. This method allows several thermocouple
points to be measured without using thermocouple extension wire for each input. The point used as the
measurement source of the remote cold junction source is referred to as the compensation channel.
The point used as the compensation channel must be programmed
before
the Thermocouple or RTD input
is assigned to it.
To program the Compensation:
From the Point Setup menu use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Compensation
and press the
ENTER
button.
Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to select either
Local comp
or
Ext comp
and press
the
ENTER
button. If
Local comp
is chosen, just press the
EXIT
button to return to the Point Setup
menu. If
Ext comp
is chosen, you will be prompted with “ext point? X”. Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button
to scroll through the point numbers to choose the input where the external compensation is input. When
the desired point number is displayed, press the
ENTER
button. Then press the
EXIT
button to return to the
Point Setup menu.
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