Brain Terminal Bt200 Operation; Bt200 Operation Precautions; Connecting The Bt200; Conditions Of Communication Line - YOKOGAWA Dpharp vigilantplant EJA110A User Manual

8. BRAIN TERMINAL BT200
OPERATION
The DPharp is equipped with BRAIN communications
capabilities, so that range changes, Tag No. setup,
monitoring of self-diagnostic results, and zero point
adjustment can be handled by remote control via
BT200 BRAIN TERMINAL or CENTUM CS console.
This section describes procedures for setting param-
eters using the BT200. For details concerning the
BT200, see IM 01C00A11-01E, "BT200 User's
Manual."

8.1 BT200 Operation Precautions

8.1.1 Connecting the BT200

Connection to the transmitter with the BT200 can be
made by either connecting to the BT200 connection
hooks in the transmitter terminal box or by connecting
to a relaying terminal board.
Relaying
terminals
Figure 8.1.1 Connecting the BT200

8.1.2 Conditions of Communication Line

Cable resistance Rc
Power
supply
Load
resistance R resistance Rc
Loop resistance = R + 2Rc
= 250 to 600
Loop capacitance = 0.22 μF max.
Figure 8.1.2 Conditions of Communication Line
Control room
Terminal board
Distributor
F0801.EPS
cc
DPharp
Cable
BT200
F0802.EPS

8. BRAIN TERMINAL BT200 OPERATION

8.2 BT200 Operating Procedures

8.2.1 Key Layout and Screen Display

Figure 8.2.1a shows the arrangement of the operating
keys on the BT200 keypad, and Figure 8.2.1b shows
the BT200 screen component.
Figure 8.2.1a BT200 Key Layout
MENU SCREEN
MENU
A:DISPLAY
B:SENSOR TYPE
Screen title
HOME
PARAMETER SCREEN
PARAM
A10:OUTPUT
A11:ENGR. OUTPUT
Parameters
A20:AMP TEMP
DATA
Figure 8.2.1b BT200 Screen Component
8-1
LCD
(21 character × 8 lines)
Function keys
Movement keys
ENTER key
Power ON/OFF key
Alphanumeric keys
Shift keys
Messages
BATTERY
Menu choices
SET ADJ ESC
Function
100.0 %
commands
1000 mmH20
23 deg C
DI AG PRNT
IM 01C21B01-01E
F0803.EPS
F0804.EPS