Watlow 8LS Controller - Manual (Page 15)

Introduction
8LS User’s Guide 7
Specifications
Analog Inputs
Thermocouple Ranges
RTD Ranges
Analog inputs 8, solid state, differential
Optical isolation 120 Vac between inputs; 175 Vac from input to ground
A/D converter Integrating voltage to frequency
DC voltage range -10 to 60 mV. You can change it with scaling resistors to
any range from 0 to 25V
Resolution 0.02%, greater than 12 bits
Accuracy 0.05% at 25°C
Calibration Automatic zero and full scale
Temperature coefficient Less than 50 ppm/C, 0.005%/°C
Normal mode rejection 60 db at 60 Hz, full scale range maximum
Loop update time 2 times per second, every input
T/C burnout Full upscale reading of input standard
DC milliamp inputs 4-20 mA, 10-50 mA, 0-50 mA, etc., with scaling resistors
Input Range 0-1V, 0-5V, 0-10V, 0-12V, up to 0-25 Vdc, with scaling
resistors
Infrared inputs Power supply included, with scaling resistors
Source impedance Measurements are within specification with up to 500
ohms source resistance
J -350 to 1400°F -212 to 760°C
K -450 to 2500°F -268 to 1371°C
T -450 to 750°F -268 to 399°C
B 150 to 3200°F 66 to 1760°C
S 0 to 3200°F -18 to 1760°C
R 0 to 3210°F -18 to 1766°C
N -450 to 2370°F -268 to 1299°C
RTD1 -148.0 to +572.0°F -100 to 300°C 0.1°
RTD2 -184.0 to +1544.0°F -120 to 840°C 0.2°