Omega CYD200 Series, User Manual

Omega Model CYD201/202 User’s Manual 

Introduction 1-1 

CHAPTER 1 

INTRODUCTION

1.0 GENERAL 

The CYD201, CYD202Series is designed and manufactured in the United 

States of America with these features: 
•  Bright 4-Digit LED Display of Temperature in K or °C 
•  Temperature Range: 1.4 K to 475 K (–271 °C to 202 °C) 
•  Resolution of ±0.1 K or °C 
•  Overall Accuracy with Calibrated Sensor of ±0.25 K 
•  Standard Temperature Response Curves, Plus Memory 

for Precision Curve Option for a Calibrated Sensor 

•  Sensor Connections made to Screw Terminal Adapter 
•  Flexible Power Supply Requirement 

We welcome comments on this manual. Although we try to keep it error-

free, some may occur. To report an error, describe it briefly and include the 

appropriate paragraph, figure, table, and page number. This manual is 

subject to change without notice. 

1.1 

MODEL CYD20X SYSTEM DESCRIPTION 

The Model CYD201, CYD202 Temperature Monitors are a microcontroller-

based instrument which measures temperature. It is designed to use CY7 

Silicon diode sensors. The Model CYD201 displays the temperature reading 

of one diode sensor. The Model CYD202S has two inputs and one display. 

The user selects the input to display by means of a front panel switch. The 

diode sensors must conform to the same temperature response curve. The 

Model CYD202D has two inputs and two displays. The readings of both 

diode sensors continuously display. Each sensor can have its own 

temperature response curve. See Figure 1-1. 

The Model CYD201, CYD202 Temperature Monitors, coupled with the 

CY7series diode sensors, offers outstanding performance and advantages 

over traditional thermocouple solutions. In the cryogenic temperature range, 

the diode sensor offers a much higher signal and better sensitivity, 

repeatability, and 

accuracy

 than a thermocouple. The CY7 Series sensors 

follow the same temperature response curve, Curve 10. In most applications 

they are interchangeable with no need to reconfigure monitors.