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TELEDYNE
HASTINGS
INSTRUMENTS
INSTRUCTION MANUAL
HPM-2002-OBE
VACUUM GAUGE
ISO 9001
CER T IFIED
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Manual Print History The print history shown below lists the printing dates of all revisions and addenda created for this manual. The revision level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between revisions, contain important change information that the user should incorporate immediately into the manual. Addenda are numbered sequentially. When a new revision is created, all addenda associated with the previous revision of the
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Table of Contents 1. GENERAL INFORMATION ............................................................................................................................................ 5 1.1. FEATURES: ............................................................................................................................................................. 5 1.2. MODEL 2002 SENSORS ................................................................................................................
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4.4. DUAL SENSOR OPERATION .................................................................................................................................. 30 5. TROUBLESHOOTING ............................................................................................................................................. 32 5.1. ADVANCED SETUP GUIDE .................................................................................................................................... 32 5.2. FREQU
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1. General Information The Hastings HPM-2002-OBE is a small, low cost electronics module which provides the user with accurate vacuum measurements over a wide range of pressure. The HPM-2002-OBE uses the same rugged HPM-2002s transducer tube as the HPM-2002 bench top instrument. This tube features two sensors; a patented thin-film Pirani sensor and a piezoresistive sensor combined in a single tube with a matched EEPROM (Electrically Erasable/Programmable Read Only Memory). The HPM-2002-OB
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1.5. HPM-2002-OBE RS232/485 Output Module The RS232/485 module consists of a power conversion/sensor transducer board, microprocessor board and a user interface option board. Serial communication is conducted via an RJ-11 type connector. With RS232 option (EIA-232 Rev. E) communication can easily be established between the module and the serial port of a PC. The RS485 option allows the user to address multiple units and allows operation at distances of up to 4000 feet. The RS232/485 module
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2. Installation This section is designed to assist in getting a new pressure gauge into operation as quickly and easily as possible. Please read the following instructions thoroughly before installing the instrument. 2.1. Receiving Inspection Carefully unpack the Hastings Model HPM-2002-OBE Instrument (part # HPM-2002-OBE), and transducer tube (part #HPM 2002s-xx). Inspect all items for any obvious signs of damage due to shipment. Immediately advise the carrier who delivered the shipment i
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• Maximum relative humidity: 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 40°C. • Installation category II HPM-2002-OBE CABLE PINOUT Analog Ouput Analog Ouput Digital Output Pin 0-10 Volt 4-20 mA RS232/485 No. 1 High Setpoint Output High Setpoint Output High Setpoint Output 2 Low Setpoint Output Low Setpoint Output Low Setpoint Output 3 Power Input (+12 to 30 VDC) Power Input (+12 to 30 VDC) Power Input (+12 to 30 VDC) 4 Power Return Power Return Power
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3. Operating Information This section contains information on operating the HPM-2002-OBE in any of its various configurations. Refer to the appropriate section for information on the mode in use. 3.1. Analog Output (0-10V) 3.1.1. Overall Functional Description The status bar gives information about the condition of the HPM-2002-OBE. High and Low indicate whether the set points are activated. ERROR indicates if there was a problem downloading the EEPROM. Torr and mTorr indicate what pres
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3.1.3. Run Mode The HPM-2002-OBE will automatically enter the Run mode upon start-up. This is the mode for normal operation and the mode in which the instrument will spend most of its time. In the Run mode the HPM-2002- OBE will continuously monitor the pressure, update the alarm conditions, and update the display about ten times a second. 3.1.4. Cal Mode Optimal performance of the HPM-2002-OBE is achieved by performing in situ adjustments to the calibration coefficients in the Cal mode. T
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coefficient, place the HPM-2002-OBE in the Cal mode using the SELECT button. Then turn the ADJUST rotary encoder. The Cal light will begin to flash during adjustment and will continue to flash until the Cal mode is exited using the SELECT button. To perform a full calibration on the HPM-2002-OBE, first use the Zero Coefficient Adjustment Procedure. Followed by the Midrange Coefficient Adjustment Procedure, and finally perform the Atmosphere Coefficient Adjustment Procedure. Sensor Coefficie
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HPM-2002-OBEVacuum Gauge Page 12 of 39
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3.2. Analog Output (4-20mA) The HPM-2002-OBE with analog output and display is shown in the figure below. The user interface consists of a status bar, a mode bar, and setpoint test jacks. 3.2.1. Overall Functional Description The status bar gives information about the condition of the HPM-2002-OBE. High and Low indicate whether the set points are activated. Error indicates if there was a problem downloading the EEPROM. Torr and mTorr indicate what pressure regime the gauge is measuring
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OBE will continuously monitor the pressure, update the alarm conditions, and update both analog output channels about ten times a second. 3.2.4. Cal Mode Optimal performance of the HPM-2002-OBE is achieved by performing in situ adjustments to the calibration coefficients in the Cal mode. There are three calibration coefficients. These are the zero coefficient, the midrange coefficient, and the atmosphere coefficient. Once a tube has been fully calibrated the midrange coefficient should nev
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To perform a full calibration on the HPM-2002-OBE, first use the Zero Coefficient Adjustment Procedure. Followed by the Midrange Coefficient Adjustment Procedure, and finally perform the Atmosphere Coefficient Adjustment Procedure. Sensor Coefficients are stored in the Sensor’s EEPROM upon exiting the Cal mode. 3.2.5. GAS Mode The HPM-2002-OBE can provide true pressure measurements in many gas environments. At pressure levels where the direct force piezoresistive sensor is operative, the in
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HPM-2002-OBEVacuum Gauge Page 16 of 39
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3.3. RS232/485 With Display The HPM-2002-OBE with RS232/485 output and display is shown in the figure below. The user interface consists of 4-digit LED display, a status bar, and a mode bar. 3.3.1. Overall Functional Description The status bar gives information about the condition of the HPM-2002-OBE. High and Low indicate whether the set points are activated. Error indicates if there was a problem downloading the EEPROM. Torr and mTorr indicate what pressure regime the gauge is me
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The characters within wavy brackets { } contain choices for the appropriate command. The characters within the symbols < > are the common abbreviations for the one digit ASCII control codes which they represent, (e.g. represents carriage return). When entering more than one command in the same data string, they must be separated by a comma. All command strings must be followed by the terminator character (carriage return , also known as ENTER). When a lower case character is p
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The setpoints may also be entered as a decimal number, e.g. [H=760.99] will be same as entering [H=7.6099E+2] . When inputting setpoint data, it should be entered in the same Units of Pressure as the presently selected Units of Measurement (i.e. Torr, mbar or Pascal). The data is only checked to be a valid number with a one digit exponent before being accepted. There are no limit checks on the data; the user is free to choose any value appropriate to his use of the instrument.
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Restore Factory Defaults /# Restore Calibration Register Default Values Set Zero /0 Store Present Pressure as Instrument ZERO (if Piezo <32 Torr & Pirani <50 mTorr) Force Zero /! Override Limit Checks and Store Present Pressure as Instrument ZERO 3.3.7. Device Status When requested to transmit its status the HPM-2002-OBE responds with a five digit number which is explained in the following: digit#: 123 4 5 Serial Receiver Overflow =4 Main Board EEPROM Er
