6.1MODULE 1 - SIGNAL INPUT PARAMETERS (1-INP)
PARAMETER MENU
INPUT RANGE
rAN6E

 

« SELECTION

RANGE

SELECTION

RANGE

 

RESOLUTION

RESOLUTION

ª

 

 

 

 

200.00 ∝A

 

20.000 mA

 

0.02A

200uA

0.02A

 

 

 

 

0.002A

2.0000 mA

0.2A

200.00 mA

 

 

 

 

Select the input range that corresponds to the external signal. This selection should be high enough to avoid input signal overload but low enough for the desired input resolution. This selection and the position of the Input Range Jumper must match.

 

 

 

 

DISPLAY DECIMAL POINT

 

 

 

 

«

 

 

 

 

 

dECPt

 

0

0.0

0.00

0.000

0.0000

ª

 

 

 

 

 

 

 

 

 

0.000

 

 

 

 

 

Select the decimal point location for the Input, MIN and MAX displays. This selection also affects the dSP1 and dSP2 parameters and setpoint values.

DISPLAY OFFSET VALUE
OFSEt

 

«

-19999

to 19999

ª

 

 

 

 

0.000

 

 

The display can be corrected with an offset value. This can be used to compensate for signal variations or sensor errors. This value is automatically updated after a Zero Display to show how far the display is offset. A value of zero will remove the effects of offset.

 

 

 

FILTER SETTING

 

«

 

FILtr
0,1 2 3

ª

 

 

 

 

1

 

If the displayed value is difficult to read due to small process variations or noise, increased levels of filtering will help to stabilize the display. Software filtering effectively combines a fraction of the current input reading with a fraction of the previous displayed reading to generate the new display.

Filter values represent no filtering (0), up to heavy filtering (3). A value of 1 for the filter uses 1/4 of the new input and 3/4 of the previous display to generate the new display. A filter value of 2 uses 1/8 new and 7/8 previous. A filter value of 3 uses 1/16 new and 15/16 previous.

 

 

 

 

SCALING STYLE
StYLE

 

«

KEy
APLY

ª

 

 

 

 

 

 

KEy

 

 

If Input Values and corresponding Display Values are known, the Key-in (KEY) scaling style can be used. This allows scaling without the presence or changing of the input signal. If Input Values have to be derived from the actual input signal source or simulator, the Apply (APLY) scaling style must be used.

INPUT VALUE FOR SCALING POINT 1
INP 1 « 0 to 29999

ª 0.000

For Key-in (KEY) style, enter the first Input Value using the front panel buttons. (The Input Range selection sets the decimal location for the Input Value).

For Apply (APLY) style, the meter shows the previously stored Input Value. To retain this value, press the SEL button to advance to the next parameter. To change the Input Value, press the RST button and apply the input signal to the meter. Adjust the signal source externally until the desired Input Value appears. Press the SEL button to enter the value being displayed.

DISPLAY VALUE FOR SCALING POINT 1
dSP

1

«

-19999 to 99999

ª

 

 

 

 

 

0.000

 

Enter the first Display Value by using the front panel buttons. This is the same for KEY and APLY scaling styles. The decimal point follows the dECPt selection.

INPUT VALUE FOR SCALING POINT 2

INP 2

«

0 to 29999

ª10.000

For Key-in (KEY) style, enter the known second Input Value using the front panel buttons.

For Apply (APLY) style, the meter shows the previously stored Input Value for Scaling Point 2. To retain this value, press the SEL button to advance to the next parameter. To change the Input Value, press the RST button and apply the input signal to the meter. Adjust the signal source externally until the desired Input Value appears. Press the SEL button to enter the value being displayed.

 

 

 

FILTER BAND

 

«

 

bANd
0 to 199 display units

ª

 

 

 

 

10

 

The filter will adapt to variations in the input signal. When the variation exceeds the input filter band value, the filter disengages. When the variation becomes less than the band value, the filter engages again. This allows for a stable readout, but permits the display to settle rapidly after a large process change. The value of the band is in display units, independent of the Display Decimal Point position. A band setting of ‘0’ keeps the filter permanently engaged at the filter level selected above.

DISPLAY VALUE FOR SCALING POINT 2

dSP 2

«

-19999 to 99999

ª10.000

Enter the second Display Value by using the front panel buttons. This is the same for KEY and APLY scaling styles.

General Notes on Scaling

1.When using the Apply (APLY) scaling style, input values for scaling points must be confined to the range limits shown.

2.The same Input Value should not correspond to more than one Display Value. (Example: 20 mA can not equal 0 and 20.)

3.For input levels beyond the programmed Input Values, the meter extends the Display Value by calculating the slope from the two coordinate pairs (INP1 /

dSP1 & INP2 / dSP2).

9