West Control Solutions TB 45 Temperature Monitor - Manual (Page 48)

Technical data
48 TB 45
CONTROL INPUT DI1 (RESET)
Configurable as direct or inverse switch or push button!
Contact input
Connection of potential-free contact that is suitable for switching
‘dry’ circuits.
Switched voltage: 5 V
Switched current: 1 mA
Optocoupler input
Actively switched optocoupler input
Nominal voltage: 24 V DC external
Logic ”0”: -3 V…+5 V
Logic ”1”: 15 V…30 V
Current demand: max. 6 mA
OUTPUTS
RELAY OUTPUTS LC, OUT2
Type: 2 NO contacts with a common terminal
Max. contact rating: 500 VA, 250 VAC, 2A at 48...62 Hz,
resistive load
Min. contact rating: 6V, 1 mA DC
Switching cycles
(electrical):
for I=1A/2A: ? 800.000/500.000 (at
250VAC, resistive load)
Note:
If the relays LC and OUT2 operate external contactors, these must
be fitted with RC snubber circuits to manufacturer specifications
to prevent excessive voltage peaks at switch-off.
OUT3 AS UNIVERSAL OUTPUT (OPTION)
Galvanically isolated from the inputs. Parallel current/voltage
output with common ‘minus’ terminal (combined use only in
galvanically isolated circuits).
Freely scalable
Resolution:
14 bits
Dynamic response (step change of
input signal) T
90
:
Output follows the input:
ß
540 ms
Tracking error I/U : ß 2 %
Residual ripple: (referred to end of
span)
ß_1%
0...130 kHz
Current output
0/4...20 mA, configurable
short-circuit proof
Control range: -0,5...23 mA
Load:
ß 700 [
Type Sensor current Measuring range Accuracy Resolution (Ô)
Pt100***
ß 0,25 mA
-200...100 (150) °C -328...212°F
ß 1 K
0,1 K
0,1 K
0,1 K
Pt100 -200...850°C -328...1562°F
ß 1 K
Pt1000 -200...850°C -328...1562°F
ß 2 K
KTY 11-6* -50...150°C -58...302°F
ß 2 K
0,1 K
Special
*
0...4500 [** Я 0,1 %
Я 0,1 %
Я 0,1 %
Я 0,1 %
Я 0,1 %
0,01 %
0,01 %
0,01 %
0,01 %
0,01 %
Special 0...450 [**
Poti 0...160 [**
Poti 0...450 [**
Poti 0...1600 [**
Poti 0...4500 [**
* Default setting is the characteristic for KTY 11-6 (-50...150°C)
** Including lead resistance
*** Up to 150°C with reduced lead resistance (max. 160
[ total)
Table 2: Resistive inputs
Measurement range Input resistance Accuracy Typical resolution
0...20 mA 20 [
ß 0,1 %
1,5
mA
0...10 V
» 110 k[ ß 0,1 %
0,6 mV
-10...10 V
» 110 k[ ß 0,1 %
1,2 mV
-5...5 V
» 110 k[ ß 0,1 %
0,6 mV
-2,5...115 mV* > 1 M[
ß 0,1 %
6,0
mV
-25...1150 mV* > 1 M[
ß 0,1 %
60,0
mV
-25...90 mV* > 1 M[
ß 0,1 %
8,0
mV
-500...500 mV* > 1 M[
ß 0,1 %
80,0
mV
-200...200 mV* > 1 M[
ß 0,1 %
40,0 mV
* For INP1: high-impedance, without break monitoring
Table 3: Current and voltage input