ENMET MEDAIR 2200 User Manual

Page 21

2200

ENMET Corporation

5.3.3 Set Alarm Points

Factory alarm set points are discussed in Section 4.2, See Table 1. To change the alarm points, you must enter the
maintenance menu.

Entrance to the maintenance menu is guarded with a four-digit Password. The factory default setting of the
password is 1270. When a valid numerical password is inserted, the user is allowed to enter the maintenance menu.

In the "

Enter Maint Menu

" position

Press the

SELECT

switch "

Enter Password

❚

" is displayed. Press

SELECT

switch once, to move cursor to next

digit, this will be the first digit of the password.

In the

❚

000

position, the underline cursor is under the left digit.

Press the

OPTION

switch to change the left digit; select the correct digit.

Press the

SELECT

switch, which locks the digit in place and moves the cursor one digit to the right.

Continue this process until the four-digit password is complete. When a valid password is inserted in this manner,
the display is transferred to the "

Calibration

" portion of the menu. If an invalid password is inserted you are

returned to the Enter Maint Menu display.

After entering a valid password

Press the

OPTION

switch until;

“Maintenance Menu Set Alarm1”

appears on display.

Press the

SELECT

switch, "

ALARM1 Select: XX

" is displayed.

= the gas of alarm point to be changed.

Press the

OPTION

switch until, desired gas is displayed.

Press the

SELECT

switch; "

ALARM 1

" is displayed, with the flashing placeholder underscore cursor, under the

left most character,

for

ascending trigger point or

for descending trigger point indicator.

Press the

OPTION

switch to toggle between

and

; select the correct indicator.

Press the

SELECT

switch to lock in the correct indicator. "

ALARM 1

STD

" is displayed

Press the

OPTION

switch to toggle between STD and

DIFF; select the correct indicator.

Press the

SELECT

switch to lock in the correct indicator.

If STD is selected, "

ALARM 1

" is displayed.

The next character is the latching indicator

press the

OPTION

switch to toggle the latching mode.

The next character is the negative sign – press the

OPTION

switch to toggle the negative sign.

The next characters are the alarm 1 value, press the

OPTION

switch to select each digit of the value

When the last digit is accepted display returns to the "

Set Alarm1

" position.

If DIFF is selected, "

ALARM 1

Λ DIFF 000

" is displayed, to

set alarm 1 value.

The next characters are the alarm 1 value, press the

OPTION

switch to select each digit of the value

Press the

SELECT

switch to lock in the correct character and move the cursor to the right.

ALARM 1

DIFF BAND 000

" is displayed, to

set alarm 1 differential.

Press the

OPTION

switch to select each digit of the value.

The next characters are the alarm 1 differential value, press the

OPTION

switch to select each digit of the value

Press the

SELECT

switch to lock in the correct character and move the cursor to the right.

When the last digit is accepted display returns to the "

Set Alarm1

" position.

Note:

The Alarm 1 differential value is the delay of the

2200

staying in alarm condition until after the

measured reading has returned past the alarm point by the differential value.

Example: If the alarm set point is

and the differential is 2, the

2200

will go into alarm at 10 and stay in alarm until the reading has dropped

below 8.

Repeat for each sensor alarm 1 to be changed.

Press the

OPTION

switch to move to alarm 2, "

Set ALARM2

" is displayed.

Repeat as for alarm 1 using the

STD

section.

Press

OPTION

switch until “Exit maint menu” appears, then press

SELECT

switch to return the instrument to the

Operational Display