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2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
1
3/2001
Models 8511, 8512, 8522, 8523
Types J, K, T, and E Thermocouple to Frequency
Model 8511, 8512, 8522 and 8523 thermocouple to frequency
converters are designed to operate into the common 24 volt,
7 mA PLC high speed counter inputs. Their output is an
isolated optocoupler transistor and provides DC isolation
from the input and DC power. They operate with a DC supply
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U
of 15 volts to 26 volts at 15 mA. The module's housing is
plastic with a U-foot for mounting on standard DIN rails. The
unit's dimensions, excluding the mounting foot, are 1.65" H x
1.06" W x 3.78" L. Connections are made to screw clamp
terminal blocks.
Type J and K Thermocouple
Type T and E Thermocouple
Model 8511 & 8512
TYPE J / K TO FREQUENCY
0 TO 500 DEG C
THERMOCOUPLE INPUT
UNGROUNDED PROBE
LINEARIZATION TO
FREQUENCY AND
COLD JUNCTION
COMPENSATION
24 VDC POWER
COLLECTOR
EMITTER
NPN PHOTO TRANSISTOR
7 mA PULSE
+
-
100 OHM
+
-
Model 8522 & 8523
TYPE T / E TO FREQUENCY
-20 TO +150 DEG C - TYPE T
0 TO 900 DEG C - TYPE E
THERMOCOUPLE INPUT
UNGROUNDED PROBES
LINEARIZATION TO
FREQUENCY AND
COLD JUNCTION
COMPENSATION
24 VDC POWER
COLLECTOR
EMITTER
NPN PHOTO TRANSISTOR
7 mA PULSE
100 Hz TO 4600 Hz
TEMP = (FREQ. - 100)/5
+
-
100 OHM
+
-
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