Omega Engineering CYD201 Manuel d'utilisateur télécharger pdf (Page 37)

OMEGA Model CYD201/CYD208 User’s Manual

Service 5-1

CHAPTER 5

SERVICE

5.0 GENERAL

This chapter covers Model CYD201/CYD208 maintenance: Model CYD201

Rear Panel Connections (Paragraph 5.1), Model CYD208 Rear Panel

Connections (Paragraph 5.2), Error Code Troubleshooting (Paragraph 5.3),

General Maintenance (Paragraph 5.4), Fuse Replacement (Paragraph 5.5),

Line Voltage Selection (Paragraph 5.6), Calibration (Paragraph 5.7), and

Serial Interface Cable and Adapters (Paragraph 5.8).

5.1 MODEL CYD201 REAR PANEL CONNECTIONS

Figure 5-1. Model CYD201 Rear Panel Connections

J1 INPUT 1

: Accepts circular 4-pin connector temperature sensor (201-MC).

J2 SERIAL I/O

: RJ-11 jack for serial remote communications to a host

computer. May require accessories CYD200-J10 (RJ-11 phone cord) and

CYD200-D (RJ-11 to DB-25 adapter).

J3 ALARM

: Relay responds to alarm setpoints and can trigger another

device. Contact 1 is normally open, contact 2 is normally closed.

Switch

: Not used.

LATCH

switch: When on (position 1), turns alarm on but not off (latched) as

indicated by temperature change. When off (position 0), turns alarm off or

on (unlatched).

SET

switch: Used in setting alarm setpoints and recalibration.

CAL ENABLE

(Calibration Enable) pushbutton: Used during A/D Converter

Calibration. See Paragraph 5.7.2.

I ADJ

(Current Adjust) trim potentiometer: Used during Current Source

Calibration. See Paragraph 5.7.1.

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Omega Engineering CYD201 Manuel d'utilisateur Page 37