ICS ELECTRONICS 4807, Instruction Manual

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1.9 THERMOCOUPLE INPUTS
The Thermocouple Inputs have the following specifications at 25 ° C.
Temperature inputs are continuously sampled and averaged to eliminate
conversion delay and noise. Default averaging value set to minimize 60 Hz
noise.
Channels 4
Thermocouple Type J
Ranges -100 ° C to + 400 ° C
Resolution 0.1 ° C
Non-linearity ± 3 ° C
Temp Drift Error ± 2 ° C over 0 to 50 ° C
Averaging Programmable from 1 to 100 samples
Sample Rate 12.6 s/sec for 4807, 29 s/sec for 2307
Query response 8.5 msec for a single channel query from
query terminator to response.
1.10 RELAY DRIVER OUTPUTS
The Relay Driver outputs sink current to actuate external relays or solenoids.
Internal spike suppression diodes are connected to the V Common line. The
driver outputs have the following specifications:
Outputs 6
Driver form Open collector with diode to V common
Current Rating 300 mA max
V on < 0.7 Vdc @ 20 mA,
< 1.2 Vdc @ 200 mA
V off V common - 0.7 Vdc
V common 0 to 48 Vdc
Return Separate line for driver return current,
same potential as logic ground
Output delay 2 msec typical from command
terminator