![background image](http://html1.mh-extra.com/html/campbell/am25t/am25t_product-manual_3760154011.webp)
AM25T Solid-State Thermocouple Multiplexer
5
FIGURE 5-2. AM25T with Spring-Loaded Terminals
As shown in FIGURE
, AM25T multiplexers prior to serial number 10147
will have screw terminals for each wire. To attach a wire, loosen the screw to
widen the terminal gap, insert the wire, then tighten the screw.
6. Specifications
Power:
Unregulated 9.6 to 16 Vdc; 12 Vdc nominal
Current Drain
Quiescent:
0.5 mA
Active:
1.0 mA (typical)
Enable
Inactive:
< 0.9 V
Active:
3.5 to 5.0 V (7 V max.)
Clock
The relays are advanced on the falling edge of the clock pulse (transition
from >3.5 V to <1.5 V; 7 V max.). The minimum clock pulse width is
limited by the data logger.
Minimum ON Time:
50 microseconds
Minimum OFF Time:
60 microseconds
Operating Temperature
Standard:
–40 to 85 °C
PRT Accuracy:
±
0.4 °C