3.3 - Installing the electronics box
32
TCT-2301 Installation instructions
M2007/3en
©BTG 2004
7. Switch on the main power on the electronics card. The power
LED should now light up. See fig 25. If not, check first the con-
nections and then the 2 AT fuse for the power supply located in-
side the electronics box.
Check the 24 V DC at te24, GND - fig 26.
Notes on fig 26:
•
An external 2-pole switch close to the electronics box is required.
•
Standard output signal 4-20 mA with superimposed digital signal
according to Hart®-protocol. See section 3.3.7.
•
Four different measuring ranges (RANGE 1-4) are available. The
setting of the respective measuring range is arranged via a binary
code switch (range setting - see fig 26 switch A/B) or DCS.
•
The unit is prepared for fieldbus. To access the communication an
additional circuit card is required.
Terminal
Total Consistency
Transmitter
TCT-2300
Sample
Enter
+ALARM-
F3
F2
F1
+24 GND +AOUT1- +AOUT2- IN1 IN2 GND +AIN-
N
L
PE
ALARM MODE PWR
OK
DO1 DO2 Di1
IN1 IN2
GND A B
COM+
DO1 DO2 DI1
GND A B
Fig 25 Power connections –
electronics box
1 Fuses
2 Power connection
100-240 V AC
3 Power switch
4 24 VDC out
4-20mA output signals
Range setting
0-20 mA input signals
Alarm
5 LEDs
6 Digital signals
7 Fieldbus
8 RS-485
9 Optical fiber connection
10 SPC-1000/A
connection
5
2
3
1
10
4
6
7
8
9
OUT
1
4-20mA
min
250ohm
TCT
-2301
S = Shield connected to cable-gland
* = Not used for TCT-2301
PE
L
N
+24V
Range
A
GND
+
-
+
-
IN1
Range
B
GND
Line power
100-240 VAC
RS485
IN2
GND
A OUT 1
A OUT 2
+
-
+
-
A IN
ALARM
Power
to
external
equipment
A
Out
1
A
Out
2
*
Aux
In
Alarm
COM
+
DO1
DO2
DI1
S
S
A
B
GND
Field bus
A
B
PCD-1000
option
PCD-1000
option
A
B
RANGE 1
0
0
RANGE 2
1
0
RANGE 3
0
1
RANGE 4
1
1
0=
1=
Fig 26 Wiring diagram for
electronics box
TCT-2301