CBLUSB01 datasheet(12/32 Pages) REDLION

12 / 32 page

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INPUT VALUE FOR SCALING POINT 1

For Key-in (), enter the known first Input Value by using the arrow keys.

(The Input Range selection sets up the decimal location for the Input Value.)

For Apply (), apply the input signal to the meter, adjust the signal source

externally until the desired Input Value appears. In either method, press the

PAR key to enter the value being displayed. In the  style, the RST key can

be pressed to advance the display past the  value or other input value

without storing it. This is useful for application scaling of the second scaling

point (i.e. when the tank is full), or some other point in multipoint applications.

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to 

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DISPLAY VALUE FOR SCALING POINT 1*

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to 

Enter the first coordinating Display Value by using the arrow keys. This is

the same for  and  scaling styles. The decimal point follows the 

selection. For Square Root Extraction Input Range, the Display 1 value must

be zero.

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INPUT VALUE FOR SCALING POINT 2

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to 

For Key-in (), enter the known second Input Value by using the arrow

keys. For Apply (), adjust the signal source externally until the next

desired Input Value appears. (Follow the same procedure if using more than 2

scaling points.)

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DISPLAY VALUE FOR SCALING POINT 2*

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to 

General Notes on Scaling

1. Input Values for scaling points should be confined to the limits of the Input

Signal, ie. 4-20 mA or 0-10 VDC.

2. The same Input Value should not correspond to more than one Display Value.

(Example: 20 mA can not equal 0 and 10.)

This is referred to as readout jumps (vertical scaled segments).

3. The same Display Value can correspond to more than one Input Value.

(Example: 0 mA and 20 mA can equal 10.)

This is referred to as readout dead zones (horizontal scaled segments).

4. The maximum scaled Display Value spread between range maximum and

minimum is limited to 65,535. For example using +20 mA range the

maximum +20 mA can be scaled to is 32,767 with 0 mA being 0 and Display

Rounding of 1. (Decimal points are ignored.) The other half of 65,535 is for

the lower half of the range 0 to -20 mA even if it is not used. With Display

Rounding of 2, +20 mA can be scaled for 65,535 (32,767 x 2) but with even

Input Display values shown.

5. For input levels beyond the first programmed Input Value, the meter extends

the Display Value by calculating the slope from the first two coordinate pairs

( /  &  / ). If  = 4 mA and  = 0, then 0 mA

would be some negative Display Value. This could be prevented by making



= 0 mA /  = 0,  = 4 mA /  = 0, with  = 20 mA /



= the desired high Display Value. The calculations stop at the limits of

the Input Range Jumper position.

6. For input levels beyond the last programmed Input Value, the meter extends

the Display Value by calculating the slope from the last two sequential

coordinate pairs. If three coordinate pair scaling points were entered, then the

Display Value calculation would be between  /  &  / .

The calculations stop at the limits of the Signal Input.

Enter the second coordinating Display Value by using the arrow keys. This

is the same for  and  scaling styles. (Follow the same procedure if

using more than 2 scaling points.)

2-FNC

USr-2

USr-1

Sc-F1

rSt

Sc-F2

PAR

Pro

FUNCTION KEYS

USER INPUTS

6.2 mOdUle 2 - User inPUT and frOnT Panel fUnCTiOn Key

ParameTers ()

PARAMETER MENU

The two user inputs are individually programmable to perform specific meter

control functions. While in the Display Mode or Program Mode, the function is

executed the instant the user input transitions to the active state.

The front panel function keys are also individually programmable to perform

specific meter control functions. While in the Display Mode or when viewing

meter values in Quick Programming mode, the primary function is executed the

instant the key is pressed. Holding the function key for three seconds executes

a secondary function. It is possible to program a secondary function without a

primary function.

In most cases, if more than one user input and/or function key is programmed

for the same function, the maintained (level trigger) actions will be performed

while at least one of those user inputs or function keys are activated. The

momentary (edge trigger) actions will be performed every time any of those

user inputs or function keys transition to the active state.

Note: In the following explanations, not all selections are available for both

user inputs and front panel function keys. Alternating displays are shown

with each selection. Those selections showing both displays are available for

both. If a display is not shown, it is not available for that selection. 

will represent both user inputs.  will represent all five function keys.

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

NO FUNCTION

No function is performed if activated. This is the factory setting for all user

inputs and function keys. No function can be selected without affecting basic

start-up.

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PROGRAMMING MODE LOCK-OUT

Programming Mode is locked-out, as long as activated

(maintained action). A security code can be configured to

allow programming access during lock-out.

* The decimal point position is dependent on the selection made in the

“Display Decimal Point” parameter.

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