ENMET CP-60 User Manual
Page 15
CP-60
ENMET Corporation
12
5.2.2 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.
N
OTE
:
Changing the alarm points on the
CP-60
will NOT change the alarm points on the sensor transmitter.
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
❚
0
" 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: O2
" example is displayed.
Press the
SELECT
switch; "
ALARM 1
V
" is displayed, with the indicator flashing,
Λ
for
ascending trigger point or
V
for descending trigger point indicator.
Press the
OPTION
switch to toggle between
Λ
and
V
; 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
V
L
" is displayed.
The next character is the latching indicator
L
or
NO
L
press the
OPTION
switch to toggle the latching mode.
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 Maintenance Menu "
Set Alarm1
" position.
IF:
DIFF is selected, "
ALARM 1
V DIFF 19.5
" is displayed, Factory default setting.
The next characters are the alarm 1 value, press the
OPTION
switch to select each digit of the value
Move the cursor to the first digit and, Press the
SELECT
switch to lock in the correct character and move the cursor to the
right.
"
ALARM 1
DIFF BAND 0.0
" is displayed, to set alarm 1 differential. With
SELECT
switch move cursor to left.
Press the
OPTION
switch to select each digit of the value.
Note:
The Alarm 1 differential value is the delay of the
CP-60
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
V
19.5 and the differential is 2, the
CP-60
will go into alarm at 19.5 and stay in alarm until the reading has risen above 21.5.
Repeat the above procedure 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. Alarm Diff is not available for Alarm 2.
Press
OPTION
switch until “Exit maint menu” appears, then press
SELECT
switch to return the instrument to the Operational
Display
Note:
When in maintenance mode the “_”
indicates the location of the cursor, the
“
■” block indicates a non-used location.