Teledyne 2002 General Information, Installation, Front Panel Operation, Rear Panel Description

Table of Contents
1.0	GENERAL INFORMATION	5
1.1	Features	5
1.2	Model 2002 Sensors	5
1.3	Model 2002 Control Unit	6
1.4	Specifications	6
2.0	INSTALLATION	7
2.1	Receiving Inspection	7
2.2	Quick Start	7
2.3	Transducer Installation	8
2.4	Control Unit Installation	8
2.5	Initial Operation	8
3.0	FRONT PANEL OPERATION	9
3.1	Overall Functional Description	9
3.2	RUN Mode	10
3.3	HI and LOW Set Point Modes	11
3.4	CAL Mode	11
3.5	GAS Mode	14
3.6	UNITS Mode	15
4.0	REAR PANEL DESCRIPTION	17
4.1	Remote Zero Input	17
4.2	Analog Output	17
4.3	TTL Outputs	19
4.4	Power Entry Module	20
5.0	THEORY OF OPERATION	21
5.1	Piezoresistive Sensor	22
5.2	Pirani Sensor	24
5.3	Dual Sensor Operation	26
6.0	COMMUNICATIONS OPTION BOARD	29
6.1	RS-232-E Interface Specifications	29
6.2	RS-232 Interface Connector Pin Assignments	29
	6.2.1 RS-485 Interface Connector Pin Assignments	30
6.3	Operation of the Serial Interface	30
		Model 2002 page 3