ENMET MX-52 User Manual
Page 20
ENMET Corporation
MX52 C
ONTROL
16
5.3 Functions of Switches and Menus for Programming and Calibration of MX52 C
ONTROL
5.3.1 Keypad (see Figures 10 and 4)
The keypad is equipped with four touch switches accessible without opening and swiveling the
MX52 C
ONTROL
FRONT panel. See Item D, Figure 10
- Manual display of previous channel
- Manual display of previous menu
- Decrease value, threshold, etc.
- Display of previous choice (on ← off, etc.)
- NO
- Combined with the “PLUS” switch to restart the channel’s automatic display cycle.
- Manual display of next channel
- Manual display of next menu
- Increase value, threshold, etc.
- Display of next choice (on ← off, etc.)
- YES
- Combined with the “MINUS” switch to restart the channel’s automatic display cycle.
- “Audio and visual” or “audio” clearing of an alarm
- Exit from a current menu
- Start a self-test manually
- VALIDATE
5.3.2 Maintenance Switches
PROGRAMMING key (Item B, Figure 10): accessible after opening and swiveling the front panel.
Combined with the “–” key to go back in a menu.
To quit normal display mode and access the various menus (see block diagram of the various menus).
To scroll through a menu.
CALIBRATION key (Item C, Figure 10): accessible after opening and swiveling the front panel.
To set a channel to CALIBRATION mode.
To quit that mode.
5.3.3 Potentiometers
On the FRONT circuit, each channel has four potentiometers (Item E in Figures 10 and 11). These are accessible by
opening and swiveling the FRONT panel of the
MX52 C
ONTROL
and are laid out as follows (see Figure 11):
TOP (item A)
1 sensor/transmitter ZERO potentiometer
1 sensor/transmitter sensitivity potentiometer
BOTTOM (item B)
1 potentiometer 4 mA / current output
1 potentiometer 20 mA / current output (for full scale)
T
T
E
E
S
S
T
T
/
/
E
E
N
N
T
T
E
E
R
R
–
–
–
–
–
–
–
–
+
+
+
+
+
+
+
+
A
A
C
C
Q
Q
U
U
I
I
T
T
–
–
–
–
–
–
–
–
+
+
+
+
+
+
+
+
A
A
C
C
Q
Q
U
U
I
I
T
T
T
T
E
E
S
S
T
T
/
/
E
E
N
N
T
T
E
E
R
R