Watlow Electric Revision 5 - Manual (Page 11)

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2.0 SPECIFICATIONS
2.1 ANALOG INPUTS
Number of channels:
32 for PID control, 48 total with reed multiplexer,
96 total with solid state.
Multiplexing: three wire reed relay, guarded inputs. two wire solid
state.
A/D converter: integrating voltage to frequency.
Loop update: each loop 2 times per second, reed modules; 1 time
per second solid state.
Input isolation: optical coupling.
Input resolution: 0.02% full scale [Approximately 12.7uv].
Temp. coefficient: .005% per degree.
Measurement accuracy: +0.1% full scale.
Thermocouple break: up scale standard.
Standard input types: All are present in every system: select by command
from host, any order, any mix:
Thermocouple ranges: J: -350 to 1400 F K: -450 to 2500 F
[200 ohms max.] T: -450 to 750 F E: -450 to 1450 F
R: 0 to 3200 F S: 0 to 3200 F
SYSTEM 32 must be operating between 0 and 50
degrees C for full T/C ranges.
Thermocouple scaling: Degrees F [convert to degrees C in computer].
Other Inputs: -10mv to 60mv input range with provision for
scaling resistors and bridges for Voltage/Current
andRTD inputs.
Linear Scaling: -16.7% to 100% for -10 to 60 mv
Voltage Ranges:100v max: Select resistors for 0 to 10v, 0 to 5v, 2 to 10v, etc.
as required.
Current Ranges: Select resistors for 0 to 10ma, 4 to 20ma, 10 to
50ma, etc. as required.
Bridge Excitation: 10v+.13%, at 50ma max [temperature coefficient
15ppm/degree C max].
Optional input types: Other T/C types, Non-contact infrared, 2, 3, or 4-
wire RTD, Carbon Potential.