Prothermo NMT 538
24
Hauser Systems & Gauging
Figure 13: NMS53x display module
Note!
The LCD will return to the Home position if no key is touched for more than 10 min.
Digits are incremented or decremented by + or - respectively. If you touch + or - continuously,
then the minimum digit will change first. After one cycle of the minimum, the second minimum will
change. After one cycle of the second follows the third minimum, and so on. If you take your finger
from the touch control, then the procedure will start again from the minimum digit. (Analogy of
mechanical counter)
5.1.3 Access
code
The purpose of the access code is to secure the installed data. There are three security levels for
the functions of the Proservo NMS53x.
Access code 0 (or no value entered): no security level
Access code 50: security level for operator
Access code 51: security level for engineer
Access code 777 special code for HART IS switch function
Based on the choice of access code, displaying matrix and operational functionality are also
variable.
Infrared
transmitting
diode
Infrared
receiving
diode
Three optical
operating elements
("touch control")
Illuminated LCD,
two lines with
16 characters each
Function symbols
(from left to right):
* Access to the
* Return to the
* Diagnostic function
programming matrix
HOME position
PROSERVO NMS531
5 Operation with the Proservo NMS53x
