- 7 -
Monitor the process variables and output
current values of the transmitter. The Com-
municator continuously updates the display
with this information approximately twice per
second. Additional functions available through
the use of this key may, depending on the
transmitter, include monitoring the sensor
temperature or static pressure.
Review the connected transmitter's databa-
se. This information includes: output para-
meters; revision info; other miscellaneous
info. Use of this key does not give the user the
ability to change any information. To make
changes the user must use the CONF key.
Configure or edit the transmitter's database.
The user is allowed to specify output parame-
ters, identification info and material info. In
addition the user may perform operations
involving transmitter database such as li-
sting, saving, downloading and deleting.
KEYBOARD AND DISPLAY
The display is a 4 line by 20 characters liquid cristal
display mounted at an angle to the face of the Commu-
nicator to increase readability. The first two lines of the
display are dedicated to data or messages for the user.
The botton two lines of the display are used for labelling
the function keys, as shown in the figure below.
The keyboard is comprised of 25 keys arranged in 3
functional groups.
Located below the LCD display is a group of 4 program-
mable function keys ("softkeys") labelled F1 - F4. The
definition of these keys varies based on the operation
the user is trying to perform. The function of each key is
defined by the corresponding label displayed by the
LCD above.
At the bottom of the Communicator there is a group of
12 keys used for the entry of numeric data and letters,
along with a decimal point ( . ) and a change sign, i.e.
( +/- ) keys.
There is a group of nine dedicated function keys
located on the face of the Communicator. Two keys are
dedicated to turning the Communicator ON or OFF.
Two other keys assist in keyboard entry ( ENTER ) and
returning to the previous menu ( ESCAPE ). The
remaining keys in the group are associated with
transmitter functions. A more detailed description of the
dedicated keys is presented below.
DIR BRD TX PASS
ECT CAST DIR WORD
MAIN MENU
PV
REVIEW
CONF
NOTE : The Communicator automatically shut off in
order to conserve battery power, if it senses that the
unit has not been used for 9 minutes. This feature is
disabled when the PV function is currently in use,
when the Communicator is in DATA BASE MODE, in
MODEM MODE or during firmware and software
upgrade, i.e. when in LOAD PROG Mode.
LINK
SERIAL
Configure the Communicator either as a
Modem for use with a PC or to perform
database operations to an existing
Configuration software on a P.C.
Perform trimming of the sensor or output
circuitry and reranging the sensor.
Confirm data entry during input operations.
This key is sometime super seded by function
key F4 which often serves as ENTER also.
Abort the present operation or return to the
next higher ( previous ) menu screen.
Switch ON the Communicator ( OFF is
for switch off) .
TRIM
F1 F2 F3 F4
691HT
A B C
1
D E F
2
G H I
3
J K L
4
M N O
5
P Q R
6
S T U
7
V W X
8
Y Z #
9
@ %
& /
0
+
-
SERIAL
LINK
F1
F2
F3
F4
PV
TRIM
REVIEW
CONF
