Omega Speaker Systems DRX-TC - Manual (Page 27)

Page 23
DRX-RTD SPECIFICATIONS
SPECIFICATIONS:
100, 500, 1000 Ohm platinum RTD with both
European (alpha=0.00385) and American
(alpha=0.00392) curves.
Input Type:
100 Ohm
-328 to 1562 °F -200 to 850 °C
500 Ohm -328 to 1562 °F -200 to 850 °C
1000 Ohm -328 to 1562 °F -200 to 850 °C
ISOLATION:
Dielectric strength to 1000 Vrms transient per
1 minute test based on EN 61010 for 50 Vdc or Vrms
working voltage.
Three way Isolation:
• Power to input
• Power to analog output/communication
• Input to analog output/communication
INPUT OVER-VOLTAGE PROTECTION:
250 V AC for 1 Minute
ANALOG TO DIGITAL TECHNIQUE:
Dual slope
READ RATE:
3 readings/second, automatic polarity
ACCURACY AT 25 °C:
±0.5 °C for platinum RTD’s
TEMPERATURE STABILITY:
0.05 °C/°C
STEP RESPONSE FOR RS485 OUTPUT:
2 seconds to 99% of the final value
(Filter time constant = 64)
RESPONSE TIME:
To verify the response time, check the carriage return
<CR>, it will be sent at the end of the response. You
can send another command after you receive the <CR>.
i.e.
send: *01X01
response: 01X01<DATA><CR>
Note: 01 is address.
WARM UP TO RATED ACCURACY:
30 minutes
INPUT POWER:
10 to 32 Volt DC
POWER CONSUMPTION:
2.4 Watts (100 mA at 24 V DC)
OPERATING AMBIENT:
-5 to +55 °C
STORAGE TEMPERATURE:
-40 to +85 °C
RELATIVE HUMIDITY:
90% at 40 °C non-condensing
J 2
J 2
1 2 3 4
1 2 3 4
+ -
N/C
SIGNAL INPUT
D
C
P
W
R
J 4
J2
J3
J 1
PWR
R
S
4
8
5
-TX
-RX
+TX
+RX TER
R
S
4
8
5
1 2 3 4
+EXC
+SIG
-SIG
-EXC
+EXC
+SIG
-SIG
-EXC
+EXC
+SIG
-SIG
-EXC
2 W I R E
3 W I R E
4 WIRE
R T D
R T D
R T D