Summary of Contents for Brooks Granville-Phillips Convectron 316 Series
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Series 316 ® ® ® Granville-Phillips Series 316 Convectron Vacuum Measurement Controller Instruction Manual Instruction manual part number 316005 Revision B - December 2012...
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Catalog numbers Series 316 Convectron Vacuum Gauge Controller with 3-Line Display This Instruction Manual is for use with all Granville-Phillips Series 316 Vacuum Measurement Controllers listed below. The “#” symbol represents a variable in the catalog number. Configured for Convectron Gauge on Channel A Half-rack mount 316501 - # # # - # # Left mount for 19-inch rack...
Table of Contents Safety Instructions...........7 Special Considerations For Use Below Receiving Inspection ........8 Torr ...........24 International Shipment ........8 Use With Gases Other Than N and Air .24 Limited Warranty ..........8 Indicated vs. True Pressure Curves ..25 2.4.2 Analog Output ........33 Chapter 1 - 316 VGC Control Unit 2.5 Convectron Gauge Calibration and 1.1 Introduction/General Description....9...
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4.4.1 Reading Pressure ......47 Chapter 7 - IEEE 488 Module 4.4.2 Analog Output ........47 7.1 Introduction ..........62 4.5 Calibration ..........48 7.2 IEEE 488 Installation ......62 4.5.1 Initial Transducer Calibration ...48 7.2.1 Selecting the Interface Bus Address 62 To Set The Controller Zero (Initial Talk-Only Mode..........63 Controller Setup) ......48 SRQ Mode ..........63...
Be sure to read through this instruction manual before installing, using, or servicing this equipment. If you have any questions or doubts about how to use this equipment safely, contact the Brooks Automation, Inc. Customer Service Department listed at the front of this manual.
Brooks Automation Inc. will, at its option, repair, replace or refund the selling price of the product if Brooks Automation Inc. determines, in good faith, it is defective in materials or workmanship during the warranty period, provided the item is returned to Brooks Automation Inc.
Chapter 1 - The 316 VGC Control Unit 1.1 Introduction/General Description The Series 316 Vacuum Gauge Controller (VGC) measures pressures from 1 x 10 Torr (1 x 10 mbar or 1 x 10 pa) to atmosphere, depending on the transducers used. Modules are available to operate Convectron, capacitance manometer, and thermocouple gauges with three pressures displayed simultaneously.
1.2 Installation 1.2.1 Line Voltage Selection Line voltages of 90-110 or 105-125 or 220-240 volts are user selectable via jumpers on the power supply PC board within the controller. The factory preset line voltage and fuse rating are marked on the rear panel. Compare your unit to Figure 1-1 to determine if it is configured for your requirements.
Figure 1-2 Module Positions 1. - Position for computer interface module. 2. - Blank module. 3. - Position for channel A: Convectron or Thermocouple Gauge Module. 4. - Position for channels B & C: Convectron, Thermocouple, or Capacitance Manometer Module 5.
1.3 Mounting Configurations Figure 1-3 illustrates the various configurations available for mounting the 316 control unit and power supply. Note that when installing a mounting tab (8) into the left side of the control unit, the door should be open. The bracket (9) used to connect two control units for side by side rack mounting is not symmetrical.
1.4.1 Instrument Grounding For safe operation, the Series 316 VGC controller must be connected to an AC power source which includes a ground wire. This power ground is generally a sufficient safety precaution. A grounding stud is provided on the rear panel of the power supply module to be uses as a separate earth ground. Ground all metal parts of your vacuum system separately to power or earth ground.
Figure 1-6 Control Unit Front Panel NOTE: Display units are set separately on the Convectron or thermocouple gauge modules. Adjustments must be made to both gauge modules to avoid confusion. Be certain to update the label to reflect any change of units. 1.6 Theory of Operation More detailed explanations of the theory of operation of the Convectron, thermocouple and capacitance manometer gauges is provided in sections 2.6, 3.6, and 4.6 respectively.
elastic properties of the metal of the diaphragm. For this reason, large pressure excursions, such as occur when the system is raised to atmospheric pressure, can cause offsets to the pressure reading. The diaphragm is also extremely sensitive to temperature effects, and although it may be held in a temperature controlled chamber, this temperature control is never perfect, resulting in further perturbations to the devices theoretical accuracy.
Figure 1-7 Power Supply Board, Top View (Controller Cover Removed) 1.9 Repair Ordering Telephone Brooks Automation, Inc. to obtain a Return Authorization (RA) prior to returning your unit for repairs. A repair order must accompany returned equipment even when the equipment is being returned for a warranty repair at no charge.
This will help ensure that you receive the correct replacement. NOTE: Under no circumstances will Brooks Automation, Inc. be liable for shipping damages due to rough handling, improper packaging, or other circumstances beyond its control. All return shipments must be freight prepaid.
Service Form Photocopy this form, fill it out, and return it with your equipment. RA No. Contact Granville-Phillips Customer Service at 1-303-652-4400 or 1-800-776-6543 in the USA; FAX: 1-303-652-2844, or email: co-csr@brooks.com Model No. Serial No. Date Name: Phone No.
Be sure to read through this instruction manual before installing, using, or servicing this equipment. If you have any questions or doubts about how to use this equipment safely, contact the Brooks Automation, Inc, Customer Service Department listed at the front of this manual.
2.1.7 Sensor Failure If the gauge tube becomes disconnected from the controller or if the sensor wire in the gauge tube fails, the controller will indicate 9.99E+9. If the gauge is unplugged from a powered controller, there might be an instantaneous (0 to 0.2 seconds) drop in the pressure indication and the process control relays could activate for this brief time, depending on the order in which the gauge tube pins break contact.
Figure 2-1 Convectron Modules, Top View (Controller Cover Removed) 2.3 Convectron Gauge Tube Installation The following precautions in the use and installation of the Convectron Gauge tube must be observed. Observe the precautions at the front of this chapter regarding tube mounting position and high pressure operation.
2.3.1 Gauge Tube Orientation It is important to consider the orientation of the gauge tube if accurate readings above 1 Torr are desired. Below 1 Torr: The gauge tube will operate and accurately measure pressure below 1 Torr when mounted in any orientation.
NW16KF Flange Mount The KF mounting system requires an O-ring and centering ring to be placed between the mating flanges. The flanges are then held together with the aluminum flange clamp by tightening the wing nut. Maximum pressure for this style mounting system is 1000 Torr absolute. Other Mounting Options ®...
Indicated vs. True Pressure Curves Figures 2.3, 2.4, 2.5, 2.6, 2.7 and 2.8 show the true pressure vs. indicated pressure of Convectron Gauge for eleven commonly used gases. The following list will help to locate the proper graph for a specific application: Figure Range and Units Gases...
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Example 4: True to indicated pressure conversion. Assume you want to obtain a helium pressure of 100 Torr in the system. On Figure 2-4, locate 100 Torr on the left hand scale, travel horizontally to the right to attempt to intersect the He curve. Because the intersection is off scale it is apparent that this true pressure measurement requirement for helium exceeds the capability of the instrument.
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Figure 2-3 Convectron Gauge Indicated vs. True Pressure Curve; 0.1 to 100 mTorr MANUAL P/N 316005 REV: B...
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Figure 2-4 Convectron Gauge Indicated vs. True Pressure Curve; 0.1 to 1000 Torr MANUAL P/N 316005 REV: B...
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Figure 2-5 Convectron Gauge Indicated vs. True Pressure Curve; 0.1 to 1000 Torr MANUAL P/N 316005 REV: B...
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Figure 2-6 Convectron Gauge Indicated vs. True Pressure Curve; 10 to 0.1 mbar MANUAL P/N 316005 REV: B...
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Figure 2-7 Convectron Gauge Indicated vs. True Pressure Curve; 0.1 to 1000 mbar MANUAL P/N 316005 REV: B...
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Figure 2-8 Convectron Gauge Indicated vs. True Pressure Curve; 0.1 to 1000 mbar MANUAL P/N 316005 REV: B...
2.4.2 Analog Output An analog output for each gauge is provided on the rear panel. See Figure 2-9. These are dc voltages proportional to the logarithm of the pressure, scaled to 1 volt per decade: 0 volts = 1 x 10 or less, Torr or mbar, 1 volt = 1 x 10 , etc.
2.5 Convectron Gauge Calibration and Maintenance Each Convectron gauge tube is individually calibrated for N and air prior to leaving the factory. The Convectron gauge tube itself has a temperature compensated design. Each controller is also individually calibrated to provide accurate readout of N and air pressure with any calibrated tube.
Figure 2-12 Convectron Modules, Top View (Controller Cover Removed) 2.5.4 Cleaning the Gauge Tube The Convectron gauge can be baked to 150 °C. See Section 2.6 on for a list of materials exposed to vacuum. When the fine sensor wire is so contaminated with oil or other films that its emissivity or its diameter is appreciably altered, a change of calibration will result.
2.6 Theory of Operation The Convectron transducer is represented in Figure 2-13 as R1, R2, R3, and R4. These four resistances form the legs of a bridge circuit, with R1 designating the sensor wire of the transducer. R2 is a resistive network in the tube which compensates for changes in the ambient temperature.
Figure 2-14 Convectron Cable Diagram 2.7.2 Convectron Troubleshooting Guide Refer to Figure 2-12 for the location of the LEDs listed in this guide. Symptom Possible Cause Over Current LED is illuminated 1. Cable has an electrical short. 2. Short between pins 1 and 3 on the Convectron Gauge Bridge Circuit LED is illuminated Bridge amplifier circuit failure Gauge Unplugged LED is illuminated...
2.8 Convectron Gauge Specifications Pressure Range 1 x 10 Torr to 990 Torr, N equivalent Display Resolution 3 significant digits, except for 1 significant digit in 10 Torr digit range Gas Type , Air Display Update Time 0.5 sec typical. Switch selectable to 3 sec/reading, averaged Analog Output Logarithmic, 1V/decade, Factory set to 0 -7 Vdc.
Chapter 3 - The Thermocouple Gauge Module 3.1 Introduction The Thermocouple Gauge (TC) Module for the Granville-Phillips 316 Vacuum Gauge Controller provides pressure measurement from 1 X 10 Torr (1 X 10 mbar or 1 x 10 Pa) to 1 Torr. The basic 316505, 316506, 316507, or 316508 VGC displays pressure from one thermocouple gauge in display "A"...
3.3 Thermocouple Gauge Tube Installation The 316 VGC thermocouple gauge module is designed to operate with Granville-Phillips 270006 or comparable transducers. (See section 3.8 for other compatible transducers). The thermocouple gauge tubes can be installed anywhere in the system using a 1/8 NPT or .410 in. compression connection, or can be welded directly.
Figure 3-3 Thermocouple Gauge Pressure Analog Output 3.5 Thermocouple Gauge Calibration 3.5.1 Zero Adjustment (VAC) 1. Evacuate the system to a pressure less than 1 x 10 Torr. 2. With the gauge tube operating, adjust the VAC potentiometer until "0 0" shows in the display. Note that if the adjustment is turned too far below zero, a minus sign ("0 -0")will appear in the display.
1. Allow the system pressure to rise to atmospheric pressure. 2. Remove the top of the control unit. 3. Adjust the atmosphere potentiometer(s) (see Figure 3-5) for the thermocouple gauge(s), until the pressure display is 9.99 x 10 . Note that when adjusted beyond this point the decimal point of the display will disappear.
3.7 Thermocouple Gauge Troubleshooting 3.7.1 Troubleshooting Guide Refer to Figure 3-5 for the location of the LEDs listed in this guide. Symptom Possible Cause Cable Short LED is illuminated Cable has an electrical short or there is a circuit failure Driver Failure LED is illuminated Cable has an electrical short or there is a circuit failure OFF Scale (+ or -) LED is illuminated...
3.8 Thermocouple Gauge Specifications Gauge Type G-P 270006, Teledyne-Hastings DV-6M, DV-6R, DV-20 or equivalent Pressure Range 1 x 10 Torr to 1 Torr, N or Air equivalent Display Resolution 2 significant digits Gas Type , Air Display Update Time 0.5 sec typical. Switch selectable to 3 sec/reading, averaged Analog Output Voltage 0 to 10 V nonlinear...
Chapter 4 - The Capacitance Manometer Module 4.1 Introduction The Capacitance Manometer module allows pressure measurement from 1.0 x 10 Torr to 1000 Torr, depending on transducer pressure range. Up to 250 mA of current at +15Vdc is supplied to temperature-compensated transducers.
Display Slow Update Rate Switch When on this switch enables filtering which will stabilize a "jumpy" display. The display will update approximately every 3 seconds. Convectron Gauge Controls See Chapter 2 for information on use of Convectron controls. Capacitance Manometer Vacuum Calibration See Section 4.5.
Figure 4-3 Capacitance Manometer Module, Cable 4.4 Operation 4.4.1 Reading Pressure The capacitance manometer pressure is displayed in the third display line of the 316 controller. The accompanying Convectron gauge is displayed in the second display line. If the cable is disconnected, the manometer will read 0 pressure.
4.5 Calibration 4.5.1 Initial Transducer Calibration When first installed, your transducer zero-adjust should be set using a voltmeter to read zero when system pressure is below the minimum pressure range of the transducer. Refer to the documentation accompanying your capacitance manometer transducer for instructions on this procedure. You should also, at this time, adjust the VAC on the 316 controller with the gauge not attached to the controller, per the instructions below.
4.5.2 Convectron Controls See Chapter 2 of this manual. 4.5.3 Capacitance Manometer Analog Output Offset Adjust This potentiometer is used to set analog output 2 at zero pressure. This value is also affected by the Vacuum Adjust potentiometer (Figure 4-2). The output can be adjusted to values between -0.2 and +0.2 volts at zero pressure.
4.7 Capacitance Manometer Troubleshooting Refer to Figure 4-5 to locate LEDs on the capacitance manometer PC board. Symptom Possible Cause Unstable reading Mechanical vibration of capacitance manometer, faulty system ground or cable ground Display always reads 0 Capacitance manometer cable unplugged or faulty cable No ±15 V power CG Unplugged LED is illuminated Convectron gauge unplugged...
5.2.1 Process Control System Connections Prior to connecting the process controls to the system, it is recommended that the following steps be followed. If application assistance is desired, contact a Brooks Automation, Inc. Customer Service Representative. 1. Develop a logic diagram of the process control function.
Figure 5-1 Pin Assignments/Connector 5.3 Process Control Operation At all times the status of the 6 relays are displayed in the relay status LEDs on the 316 front panel. The LEDs do not indicate whether the gauge pressure is above or below the programmed setpoint, since setpoint polarity and manual override status can result in activation above or below the setpoint.
To Display a Setpoint Refer to Figure 5-3 when displaying setpoints. 1. Rotate the Channel Selector thumbwheel to the number of the channel you want to display. 2. Press the Up or the Down SET button and release. The programmed setpoint will appear for 2 seconds in the same display line as the associated transducer: Setpoints 1 and 2 appear in display 1.
scrolled through this stored pressure value, the relay will change state unless the manual override switch is in a manual operation position. There is a programmed 10% hysteresis on each process control setpoint. For example, with a pressure setpoint of 6.3 Torr the relay will activate when the display reaches 6.2 Torr (for falling pressure) and will deactivate when the pressure rises to one significant digit above the setpoint plus 10%, i.e., 6.3 + 0.6 + 0.1 or 7 Torr.
5.3.3 Manual Override The six three-position switches on the front of the process control module allow override of the programmed setpoints at any time. When moved to the right, the relay is activated. When moved to the left, the relay is deactivated.
Chapter 6 - The RS-232 Module 6.1 Introduction The RS-232 Interface Module for the 316 Vacuum Gauge Controller allows data output to a host computer. Output is either by a command-response mechanism or by a talk-only mode which is invoked via a switch on the RS-232 PC board.
6.2.4 Talk-Only Mode If switch S1, is OFF at power-up, the interface is in Talk-Only mode. The pressure data from all three displays will be output in a single message string, separated by commas, approximately every 5 seconds. When shipped from the factory, the Talk-Only mode is disabled. 6.2.5 Handshake Line Control Switches Refer to Section 6.4, Theory of Operation for more detailed information on the handshaking mechanism.
If extra characters are found in the message after it has been successfully interpreted, but before the terminator, they will be ignored. All characters should be upper case. All messages to the 316 will receive a reply, consisting of an ASCII string terminated with CRLF. Numbers will be returned in the format X.XXE±XX. 6.3.1 Command Syntax Definition: Display pressure reading...
6.4 RS-232 Theory of Operation Handshaking The RS-232 interface implements the following signals: SIGNAL PIN # DIRECTION Protective Ground Transmitted Data To Computer Received Data To 316 Request to Send (RTS) To Computer Clear to Send (CTS) To 316 Data Set Ready (DSR) To 316 Signal Ground (common return) Data Carrier Detect (DCD)
Figure 6-2 RS-232 Module, Top View (Controller Cover Removed) 6.5 RS-232 Troubleshooting Because the RS-232 "standard" is found in a bewildering array of configurations, the first thing to do if trouble arises is check the following configuration options: 1. Check the switch settings. Be sure baud rate, character format and framing, and interface protocol are matched to your host computer or terminal's requirements.
6.6 RS-232 Specifications Format EIA standard RS-232 C, half duplex, asynchronous Data Rates 75, 50, 300, 600, 1200, 2400, 4800, or 9600 baud Character length 7 or 8 bit ASCII, switch selectable Parity Even, odd, or none, switch selectable Stop bits 1 or 2.
Chapter 7 - The IEEE 488 Module 7.1 Introduction The IEEE 488 Module for the 316 Vacuum Gauge Controller allows data output to a host computer. Output is either by a command-response mechanism or by a talk-only mode which is invoked via a switch on the IEEE 488 board.
Talk-Only Mode Switch #8, if set to OFF at power-up, puts the interface in Talk-Only mode. The pressure data from all three displays will be output in a single message string, separated by commas, approximately every 5 seconds. When shipped from the factory, the Talk-Only mode is disabled. SRQ Mode Switch #7, if set to OFF at power-up, tells the interface to generate an SRQ interrupt and respond to a serial poll with a message output.
Definition: Display process control channel status. Modifiers: 1 or 2 or 3 or 4 or 5 or 6 or B or none. Response: Depends on modifier: Modifier = single digit (1 through 6); response = single ASCII digit, 0 if the corresponding relay is inactive, 1 if active.
Chapter 8 - The RS-485 Module 8.1 Introduction The RS-485 communications option for the Series 316 Vacuum Gauge Controller permits data output to a host computer using RS-485 digital communications. Communications handshake is by a command- response mechanism. A variety of baud rates and byte framing options are available. The RS-485 byte format is configured to your system requirements using configuration switches located on the option board.
8.2.2 Response Delay for the RS-485 Interface Switch S2.1 enables a delay of the response from the module of 10 to 13 MS + 10 bit times when OFF. When S2.1 is ON, the delay is greater than 700 microseconds. The factory default setting is ON, with a delay greater than 700 microseconds.
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Figure 8-2 RS-485 Connectors The maximum total cable length is 4,000 ft. No more than 32 devices can be connected to one RS-485 communications line. When an RS-485 network is in an idle state, all nodes are in listen (receive) mode. Under this condition there are no active drivers on the network.
8.2 .6 Preparing for Use The Series 307 Vacuum Gauge Controller uses a command-response half-duplex protocol. If the controller recognizes received data as a valid command, it will check the command string address and compare with its own. If the addresses match, the controller will process the command and then respond. In all configurations, only one twisted pair will have data transmissions in one direction at any time.
8.3 RS-485 Command Syntax Definition: Display pressure reading Modifiers: CG1 or CG2 or CG3 or 1 or 2 or 3 Response: ASCII string representing the pressure for the selected gauge Example: From computer: DS CG1 CRLF From 316: 1.20E-03CRLF NOTES 1.
8.4 RS-485 Troubleshooting In the event of problems with the RS-485 communications verify the following items for proper configuration. 1. Check the configuration switch settings. 2. Ensure the baud rate, character framing, and interface protocol are matched to the host computer or terminal’s requirements.
Chapter 9 - Linear Analog Output Module 9.1 Introduction The Linear Analog Output Module provides three, zero to +10 Vdc, linearized voltages that correspond to the displayed pressure readings of the 316 Vacuum Gauge Controller. The source for these outputs is the digital data on the controller's internal bus to the Display Module.
Figure 9-1 Linear Analog Module, Top View (Controller Cover Removed) Potentiometer Designator Function TC "A" zero adjust TC "A" full scale adjust TC "B" zero adjust TC "B" full scale adjust TC "C" zero adjust TC "C" full scale adjust 9.4.1 Gauge Output Zero Adjust Set the gauge display to read "0"...
9.5 Theory of Operation The Linear Analog Output Module circuit consists of an embedded microcontroller and associated circuitry. The microcontroller picks off display data to the display module during the appropriate bus timing cycles and performs a digital-to-analog conversion by using the external associated circuitry. 9.6 Troubleshooting Symptom Possible Cause...
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Index 316 VGC Basic Troubleshooting........16 Linear Analog Output Module Installation......72 316 VGC Cable Connections..........13 Linear Analog Output Module Operation ......72 316 VGC General Description ..........9 Linear Analog Output Module Specifications ..... 74 316 VGC Installation............10 Linear Analog Output Module TC Full Scale Adjust... 73 316 VGC Mounting Configurations ........12 Linear Analog Output Module TC Zero Adjust ....
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Phone: +1-978-262-2400 For customer service, 24 hours per day, 7 days per week, every day of the year including holidays within the USA: Phone +1–800–367–4887 World Wide Web: www.brooks.com Instruction Manual Instruction manual part number 316005 Revision B - December 2012...
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