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Specifications, Analog inputs – Watlow CLS User Manual

Page 15

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Introduction

CLS User’s Guide 7

Specifications

The following section contains specifications for inputs, outputs, the
serial interface, system power requirements, environmental
specifications, and the CLS physical dimensions.

Analog Inputs

Number of Control Loops: 4 (4CLS), 8 (8CLS), 16 (16CLS), plus one
pulse loop.

Number of Analog Inputs: 4 (4CLS), 8 (8CLS), 16 (16CLS).

Input Switching: differential solid state MUX switching.

Input Sampling Rate:

4CLS: 6x/sec (167 ms) at 60 Hz; 5x/sec (200 ms) at 50 Hz.
8CLS: 3x/sec (333 ms) at 60 Hz; 2.5x/sec (400 ms) at 50 Hz.
16CLS:1.5x/sec (667 ms) at 60 Hz; 1.25x/sec (300 ms) at 50 Hz.

Analog Over Voltage Protection: +20 V referenced to digital ground.

Common Mode Rejection (CMR): For inputs that don't exceed +5 V,
>60 dB DC to 1 kHz, and 120 dB at selected line frequency.

A/D Converter: Integrates voltage to frequency.

Input Range: -10 to +60 mV. Other ranges are available with scaling
resistors.

Resolution: 0.006%, greater than 14 bits. (This is the internal
measurement resolution, not the display resolution.)

Calibration: Automatic zero and full scale.