420setup, Scale4ma, Scal20ma – ENMET CP-10 User Manual

Page 15: Ma trim, Cal ok

CP-10

ENMET Corporation

5.2 CP-10

Maintenance Adjustments

To set alarm points and 4-20mA span range enter the

CP-10

maintenance menu.

To enter the maintenance menu press and hold the

ENU

button for 2 to 4 seconds

OTE

Software revision may cause variations of display output.

5.2.1 Exit Maintenance Menu

Exit maintenance, by pressing the Exit appears on the display. Press the

ELECT

button to return to the instrument Normal Gas

Display.

Example of Exit menu:

5.2.2 Set Up 4 and 20 Scale

The

CP-10

4 mA low scale (the low end of range) and 20 mA full scale (the high end of range) is set at the factory. The mA

Trim is for the adjustment of miner differences that may occur between the

CP-10

control and the S/T display.

To Set up the low and full scale mA values or the trim of the readings:

Enter the maintenance menu as shown in Figure 6 & Figure 7

CP-10

Maintenance Menu flow chart.

Press the

ENU

button until to 420Setup is displayed.

Press the

ELECT

button to enter 4 mA low end of scale set up.

Note:

to advance to the next menu without changing this scale setting Press the

ENU

button

Press the

ELECT

button to initiate 4 mA low end of scale set up.

Press the

ELECT

button to move the cursor to the next digit.

Press the

ENU

button to change the digit indicated by the underscore cursor.

repeat steps 4 & 5, When last digit is entered the

CP-10

will advance to the next menu.

Note:

when mA Trim last digit has been entered, Cal OK will be displayed briefly and

CP-10

will advance to Alarm 1.

Press the

ENU

button to advance to the next menu

Example of 4 – 20 mA Scale Setup menus:

Exit

Select

➨

Press the Select button to return to the Normal Gas Display.

Menu

Press the Menu button to cycle through Maintenance Menus

420Setup

Menu

Press Select button to advance to display trim
To adjust display of CP-10 to match S/T display

The Select button locks underscored digit and moves to next digit
The Menu button changes digit indicated by underscore cursor

When the last digit has been locked in place, Cal OK will appear briefly than
the CP-10 will advance to the next menu, Alarm 1

Select

➨

Scale4mA

Select

➨

Menu

Select

➨

Scal20mA

Select

➨

Menu

Select

➨

mA Trim

Cal OK

Select

➨

Menu

Press Select button to set low end of scale:

The Select button locks underscored digit and moves to next digit
The Menu button changes digit indicated by underscore cursor
When last digit is entered CP-10 will advance to full scale set up

Press Select button to advance to full scale
To set full scale :