Teledyne HPM-2002-OBE User Manual

INSTRUCTION MANUAL HPM-2002-OBE VACUUM GAUGE TELEDYNE HASTINGS INSTRUMENTS ISO 9001CERTIFIED

HPM-2002-OBEVacuum Gauge Page 10 of 39 3.1.3. Run Mode The HPM-2002-OBE will automatically enter the Run mode upon start-up. This is the mode for no

HPM-2002-OBEVacuum Gauge Page 11 of 39 coefficient, place the HPM-2002-OBE in the Cal mode using the SELECT button. Then turn the ADJUST rotary encod

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HPM-2002-OBEVacuum Gauge Page 13 of 39 3.2. Analog Output (4-20mA) The HPM-2002-OBE with analog output and display is shown in the figure below. The

HPM-2002-OBEVacuum Gauge Page 14 of 39 OBE will continuously monitor the pressure, update the alarm conditions, and update both analog output channel

HPM-2002-OBEVacuum Gauge Page 15 of 39 To perform a full calibration on the HPM-2002-OBE, first use the Zero Coefficient Adjustment Procedure. Follow

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HPM-2002-OBEVacuum Gauge Page 17 of 39 3.3. RS232/485 With Display The HPM-2002-OBE with RS232/485 output and display is shown in the figure below.

HPM-2002-OBEVacuum Gauge Page 18 of 39 The characters within wavy brackets { } contain choices for the appropriate command. The characters within th

HPM-2002-OBEVacuum Gauge Page 19 of 39 The setpoints may also be entered as a decimal number, e.g. [H=760.99<CR>] will be same as entering [

HPM-2002-OBEVacuum Gauge Page 2 of 39 Manual Print History The print history shown below lists the printing dates of all revisions and addenda create

HPM-2002-OBEVacuum Gauge Page 20 of 39 Restore Factory Defaults /#<CR> Restore Calibration Register Default Values Set Zero /0 <CR&g

HPM-2002-OBEVacuum Gauge Page 21 of 39 3.3.9. Modular Connector Pinout (R2-232) RJ-11 connector on left side. Pin #1 ...

HPM-2002-OBEVacuum Gauge Page 22 of 39 During normal operation the alarm light will illuminate and the TTL output (pin # 2) will go high (+5V) if the

HPM-2002-OBEVacuum Gauge Page 23 of 39 3.4. DeviceNet TM The HPM-2002-OBE with DeviceNet option is shown in figure below. 3.4.1. Overall Functiona

HPM-2002-OBEVacuum Gauge Page 24 of 39 3.5. Calibration of the HPM-2002-OBE 3.5.1. Zero Coefficient Adjustment The zero coefficient corrects for th

HPM-2002-OBEVacuum Gauge Page 25 of 39 4. Theory of Operation The 2002s transducer tube is comprised of two very different sensors which provide a

HPM-2002-OBEVacuum Gauge Page 26 of 39 4.2. Piezoresistive Sensor Figure 4.2 shows a typical schematic of a Boron ion implanted Wheatstone bridge ne

HPM-2002-OBEVacuum Gauge Page 27 of 39 Figure 4.2

HPM-2002-OBEVacuum Gauge Page 28 of 39 4.3. Pirani Sensor Figure 4.3a shows a thin metal film resistive element on a one micron thick Si3N4 continuo

HPM-2002-OBEVacuum Gauge Page 29 of 39 This radiation loss is also independent of the thermal conductivity of the gas. It is somewhat

HPM-2002-OBEVacuum Gauge Page 3 of 39 Table of Contents 1. GENERAL INFORMATION ...

HPM-2002-OBEVacuum Gauge Page 30 of 39 loss is only approximately 10% of Es. If ambient changes are small compared to the absolute values of the tem

HPM-2002-OBEVacuum Gauge Page 31 of 39 Figure 4.4

HPM-2002-OBEVacuum Gauge Page 32 of 39 5. Troubleshooting 5.1. Advanced Setup Guide The HPM-2002-OBE has several setup and control commands which ca

HPM-2002-OBEVacuum Gauge Page 33 of 39 Baud Rate B_2.4 B_2.4, B_4.8, B_9.6, B_19.2, B_38.4, B_57.6, B_125, B_250, B_500 The baud rate is given in kba

HPM-2002-OBEVacuum Gauge Page 34 of 39 Restore Calibration r_CL Restore Calibration transfers the calibration from the HPM-2002s tube EEPROM into th

HPM-2002-OBEVacuum Gauge Page 35 of 39 communications program (e.g. WindowsÔ Hyperterminal) which can be used to communicate with RS232 versions of t

HPM-2002-OBEVacuum Gauge Page 36 of 39 6. WARRANTY 6.1. Warranty Repair Policy Hastings Instruments warrants this product for a period of one year f

HPM-2002-OBEVacuum Gauge Page 37 of 39 7. Diagrams and Drawings

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HPM-2002-OBEVacuum Gauge Page 4 of 39 4.4. DUAL SENSOR OPERATION ...

HPM-2002-OBEVacuum Gauge Page 5 of 39 1. General Information The Hastings HPM-2002-OBE is a small, low cost electronics module which provides the us

HPM-2002-OBEVacuum Gauge Page 6 of 39 1.5. HPM-2002-OBE RS232/485 Output Module The RS232/485 module consists of a power conversion/sensor transduce

HPM-2002-OBEVacuum Gauge Page 7 of 39 2. Installation This section is designed to assist in getting a new pressure gauge into operation as quickly an

HPM-2002-OBEVacuum Gauge Page 8 of 39 • Maximum relative humidity: 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 4

HPM-2002-OBEVacuum Gauge Page 9 of 39 3. Operating Information This section contains information on operating the HPM-2002-OBE in any of its various