Watlow CLS200 - Manual (Page 216)

Chapter 11: Specifications CLS200 Series User’s Guide
200 Watlow Anafaze Doc.# 0600-3050-2000
Inputs
The controller accepts analog sensor inputs which are mea-
sured and may be used as feedback for control loops. It also
accepts digital (TTL) inputs which may be used to trigger
certain firmware features.
Table 11.11 Analog Inputs
Parameter Description
Number of Control Loops CLS204: 5; CLS208: 9; CLS216: 17
Number of Analog Inputs
CLS204: 4 with full range of input types, plus one pulse
CLS208: 8 with full range of input types, plus one pulse
CLS216: 16 with full range of input types, plus one pulse
Input Switching
CLS204 and CLS208: Differential solid state multiplexer
CLS216: Single-ended, solid state multiplexer
Input Sampling Rate
CLS204: 6 Hz (167 ms) at 60 Hz; 5 Hz (200 ms) at 50 Hz.
CLS208: 3 Hz (333 ms) at 60 Hz; 2.5 Hz (400 ms) at 50 Hz.
CLS216:1.5 Hz (667 ms) at 60 Hz; 1.25 Hz (800 ms) at 50 Hz
Analog Over Voltage Protection ± 20V referenced to digital ground.
Maximum Common Mode Voltage 5V input to input or input to analog common (CLS204 and CLS208)
Common Mode
Rejection (CMR)
For inputs that do not exceed ± 5V, >60 dB dc to 1 kHz, and
120 dB at selected line frequency.
A/D Converter Integrates voltage to frequency
Input Range -10 to +60mV, or 0 to 25V with scaling resistors
Resolution 0.006%, greater than 14 bits (internal)
Accuracy
0.03% of full scale (60mV) at 25° C
0.08% of full scale (60mV) at 0 to 50° C
Calibration Automatic zero and full scale
DC Common to Frame Ground
Maximum Potential
20V
Thermocouple Break Detection Pulse type for upscale break detection
Milliampere Inputs
0 to 20 mA (3 Ω resistance) or 0 to 10 mA (6 Ω resistance),
with scaling resistors
Linear Voltage Input Ranges Avail-
able
0 to12V, 0 to 10V, 0 to 5V, 0 to 1V, 0 to 500 mV, 0 to 100 mV
with scaling resistors.
Source Impedance
For 60mV thermocouple, measurements are within specifica
tion with up to 500 Ω source resistance
For other types of analog signals, the maximum source imped-
ance is 5,000 Ω