Related Manuals for SCIENTIFIC INSTRUMENTS 1900-7
Summary of Contents for SCIENTIFIC INSTRUMENTS 1900-7
- Page 1 Instruction Manual Model 1900-7 & 1901-7 Temperature Indicator SCIENTIFIC INSTRUMENTS, INC 090-226 Rev. D...
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Page 2: Table Of Contents
TABLE OF CONTENTS Paragraph Title Page SECTION I GENERAL DESCRIPTION INTRODUCTION ........3 SPECIFICATIONS ........3 SECTION II OPERATIONS INPUT/OUTPUT CONNECTIONS ......... 4 OPERATING PROCEDURES ........5 2.2.1 ACCESSING SINGLE POINT CALIBRATION MODE ... 5 2.2.2 ACCESSING SET POINT MODE (MODEL 1901 ONLY) ..5 2.2.3 ACCESSING THE DIAGNOSTIC SUBROUTINE 2.2.4... -
Page 3: Introduction
1.5 to 273K. Different Models of the ruthenium oxide sensor can be accommodated. These are: Scientific Instruments, Inc. Model RO-105 (100K) Scientific Instruments, Inc. Model RO-701GE (1K) Scientific Instruments, Inc. Model RO-600 (1K) Each Model has its own software that has been factory programmed at the time of order. -
Page 4: Input/Output Connections
SECTION II OPERATION INPUT/OUTPUT CONNECTIONS All input and output connections are made at the rear panel of the instrument: Insert the plug from the power converter into the receptacle at the extreme right-hand side of the rear panel. Wire the ruthenium oxide sensor to the furnished 5-pin plug as follows: Insert this plug into its corresponding receptacle on the rear panel. -
Page 5: Operating Procedures
OPERATING PROCEDURES Several moments after power is applied to the instruments, it will assume its principal mode of operation which is to display temperature as sensed by the associated ruthenium oxide sensor. If desired, the operator can: Access the single point calibration mode, change temperature set points (if the instrument is a Model 1901), and access a special diagnostic subroutine to check... -
Page 6: Accessing The Diagnostic Subroutine
Legends are as follows: 105 – Scientific Instruments, Inc. Model RO-105 701 – Scientific Instruments, Inc. Model RO-701GE 600 - Scientific Instrument's, Inc. Model RO-600 Press the “down” switch again. -
Page 7: Calibration Procedures
CALIBRATION PROCEDURES CAUTION: THE FOLLOWING PROCEDURE IS PERFORMED BY SCIENTIFIC INSTRUMENTS, INC. AND IS USUALLY ONLY NECESSARY DURING INITIAL SET-UP OF THE INDICATOR AT THE TIME OF ORDER. HAS BEEN INCLUDED IN THIS MANUAL FOR INFORMATIONAL PURPOSES ONLY AND IS NOT NECESSARY FOR ROUTINE USE. By means of the front panel switches, the operator can access the sensor curve data stored in the internal EPROMs and select a different curve, if desired. -
Page 8: Setting Of Reference Voltage
2.3.2 Setting of Reference Voltage Connect a 1 Megohm decade resistance box (General Radio Model 1433-B, or equivalent) to the sensor input receptacle in lieu of the 100K ruthenium oxide sensor. Use a 10K ohm decade resistance box (General Radio Model 1433-W, or equivalent for the 1K sensor. -
Page 9: Setpoint Data
2.4.2 Setpoint Data The Model 1901 will accept a new alarm setpoint value for the selected relay when the host computer transmits the following code: S1, N, <CR> in which: indicates that the setpoint is for relay #1. (S2 is used for relay #2). is the temperature setpoint in degrees Kelvin (to tenths of degree resolution), with the least significant digit being the tenth’s digit.
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