User’s Manual Series TAS-1
FEMA ELECTRÓNICA - Page 10
The TSAT board adds analog output capabilities to the TAS-1
instruments. Jumper selectable for voltage ( 0/10 Vdc) and for
current (4/20mA and 0/20mA in modes SINK and SOURCE) adds
a galvanic isolation of 2KVeff.
The analog output adjustment is done via the frontal keypad. The
analog output value is adjusted related to the display indication.
This allows the intelligent use of the correction functions for offsets
and fast readjustment of the TAS-1 series, meaning that when
7.1.3- START-UP
1.- Place jumpers on TSAT board for Vdc or mA output
2.- Plug the TSAT board on the bus pins (Expansion Bus) on
board AL2 or EXP
3.- To configure the analog output you need to know the analog
output signal and the related display indication
Input Signal
Indication
Analog Output
4 mA
0
0 Vdc (00000 miliVots)
20 mA
100.00
10 Vdc (10000 miliVolts)
7- AVAILABLE OPTIONS - INSTALLING AND CONFIGURING
7.1- ANALOG OUTPUT - TSAT OPTION BOARD
readjusting the input/display readings, the analog output
does not need to be readjusted most of the times.
in case of trouble with the input signal, such as loop
break or sensor break, the analog output signal will
exhibit always the same behaviour predefined by the
operator on the menu.
7.1.1- CONNECTIONS
Voltage Output
.-
Terminal 12 (Negative)
Terminal 13 (Positive)
Current Output
.-
Terminal 13 (Negative)
(Source = Active)
Terminal 14 (Positive)
Current Output
.-
Terminal 12 (Negative)
(Sink=Pasive needs
Terminal 13 (Positive)
external power supply)
R
l
-
+
Terminal 12
Terminal 13
R
l
+
-
Vext
Terminal 12
Terminal 13
7.1.2- TECHNICAL CHARACTERISTICS
Output Signals
0/10 Vdc, 0/20 mA and 4/20 mA (and others)
Resolution
12 bits
Accuracy
<0.1% FS
Ripple
<0.01% FS
Thermal Drift
100 ppm/ºC
Pass Band
1.5 Hz (-3 dB)
Response Time
250 ms (99% of indication)
Isolation Levels
2KVeff (50 Hz, 1 minute)
mA Output
RLmax
500 Ohms (Source Mode)
Imax
21.5 mA aprox.
SINK Output maximum 40Vdc on terminals
Vdc Output
RL min
1 KOhm
Vmax
11 Vdc aprox.
R
l
-
+
Terminal 13
Terminal 14
Terminal 12
Terminal 13
Terminal 14
Jumpers to the left.-
Output in Vdc
Jumpers to the right.-
Output in mA
Note .- Analog output units are entered with 3 decimals, this
is, in miliVolts and microAmperes.
4.- Make connections, power the unit and configure the board
(see next page)
