SI Series 9600-1,
9620-1 and 9600-5
Digital Temperature
Indicators & Controllers

• General Description
• Specifications
• Model 9600-1 Description
• Model 9620-1 Description
• Model 9600-5 Description

General Description

Specifications

Model 9600-1 Description

This single channel microprocessor based P.I.D. controller comes standard with an RS-232 interface and 25 watts of heater power. Examples of system applications where a single channel controller would be applicable are: exchange gas systems, open and closed cycle laboratory cryogenic systems, optical experiments, transport experiments, vapor and sample systems, spectroscopy experiments, sample cooling and cryogenic annealing experiments.

Model 9620-1 Description

The Model 9620-1 is a dual channel, microprocessor based P.I.D. controller, and comes standard with 25 watts of heater power. The user has a choice of RS-232 or an optional IEEE-488 interface. The use of grouping silicon diodes is suggested; units may be ordered with signal conditioning E-Proms for most commercially available diodes. Unlike the 9600, the 9620's calibration curve cannot be accessed via the three front panel scroll buttons. Examples of system applications for a dual channel controller are the same as for the Model 9600-1, however, a dual channel is advantageous for monitoring sample temperature.

Model 9600-5 Description

This unit is configured to accommodate a single Chromel/Gold thermocouple. Like its silicon diode counterpart, the 9600-5 comes standard with microprocessor based P.I.D. control, 25 watts of heater power and RS-232 interface. Examples of system applications: high radiation environments, UHV applications, and environments where small size is a requirement.

The thermocouple connection is made by screw terminals on the rear which are in close proximity to the calibrated reference diode.

This construction feature provides an excellent thermal lock between the reference junction and the reference diode. The reference diode is a precision silicon diode temperature sensor which is used to measure the absolute temperature of the reference junction. The actual compensation is performed in software which produces high and repeatable accuracy.