Betagauge 330 руководство по эксплуатации

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  BETAGAUGE 330 Reference Manual…

• Page 2: Table Of Contents

  1.1 Contacting Martel / Beta ……..1…

• Page 3: Introduction

  1. Introduction The BetaGauge 330 is designed to be a simple to use yet very versatile pressure calibrator. Its internal pressure sensor combined with an innovative electrically powered pump along with inputs for mA, voltage, switch contacts and an RTD probe allow the 330 to calibrate virtually any pressure device.

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  Symbol Description Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Canadian Standards Association The following definitions apply to the terms “Warning” and “Caution”. • “Warning” identifies conditions and actions that may pose hazards to the user. •…
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  • Do not use the calibrator if it operates abnormally. Protection may be impaired. When in doubt, have the calibrator serviced. • Do not operate the calibrator around explosive gas, vapor, or dust. • When measuring pressure, make sure the process pressure line is shut off and depressurized before you connect it or disconnect it from the pressure module.

• Page 6: Calibrator Interface

  2. Calibrator Interface Figure 1 shows the location of the pressure controls, connection port and electrical inputs. Figure 1…

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  Figures 2A and 2B show the location of the keys. Table 2 describes the function of each key. Figure 2A Keypad (Electric Pump Versions) Table 2 Key Functions Name Description Function Keys These are soft keys used to configure the calibrator ON/OFF Key This key is used to turn the calibrator on and off ZERO Key…

• Page 8: Calibrator Display

  2.1 Calibrator Display The Calibrator Display consists of two regions: The menu bar (located along the bottom of the screen) is used to access a menu system. The main display (the rest) consists of up to three process measurement sub-regions. These sub-regions will henceforth be referred to as the UPPER, MIDDLE and LOWER displays.

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  2.1.2.1 Setting the Active Display The active display is indicated by the center option on the Main Menu, pressing the F2 key will toggle the active display. 2.1.2.2 Setting Active Display Parameters To set the parameters of the active display use the CONFIG option to get to the Display Configuration Menu.

• Page 10: Using The Backlight

  Table 4 Mode Concurrency CURRENT DISPLAY P[1] [EXT] P[1] [EXT] Volts Loop P[1] [EXT] P[1]ST [EXT]ST mA Loop Volts X = Not a valid mode 2.1.1.3 Accessing Other Menus Use the MORE option on the Main Menu to access the other menu functions. 2.2 Using the Backlight The backlight is controlled by the LIGHT softkey on the main menu on the models with electric pump.

• Page 11: Other Menu Controlled Functions

  2.4 Other Menu Controlled Functions There are 12 ‘sub-main’ menus that can be accessed through the MORE option of the Main Menu. A ‘sub-main’ menu contains three options. The first option is unique to the function. The second and third options of a ‘sub-main’ menu are always the same. The NEXT option leads to the next ‘sub-main’…

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  Figure 4 Menu Map…
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  If SAVE or RECALL is selected use the arrow keys to select the set-up location. Then use the save option to store the current set-up into the selected location or the recall option to recall the set-up stored in the selected location. The display menu will automatically go home.

• Page 14: Initial Setup And Basic Pressure Generation

  When in this mode use the arrow keys to set the maximum pressure. 2.4.9 HART™ Resistor An internal 250 ohm HART Resistor can be enabled when the BetaGauge 330 is operated in the “mA Measure-24V” mode. This allows a HART Communicator to be connected across the mA terminals and eliminates the need for adding an external resistor.

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  3.1 Electric Pump Considerations The BetaGauge 330-30 and 330-150 incorporate a small, lightweight, battery powered pneumatic pump that allows the user, in the case of the 330-150 to build relatively high pressure up to 150psi (10Bar) quickly and with good control.

• Page 16: Measuring Pressure

  See section 2.3. 4.1 Media Compatibility The BetaGauge 330 feature a unique user accessible valve cleaning port to facilitate servicing the pump. Section 16.3 shows how to clean these valves. Even though servicing the pump is easy, care should be taken to only expose the calibrator to clean, dry gases.

• Page 17: Measuring Current

  Figure 6 5. Measuring and Generating Current (4 to 20 mA) 1. To measure current use the input terminals in the front of the calibrator. Select the mA function on the lower display. Current is measured in mA and percentage of range. The range on the calibrator is set to 0% at 4 mA and 100% at 20 mA.

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  Figure 7-1 Figure 7-2 Figure 7-3 Figure 7-4…

• Page 19: Measuring Voltage

  1/4” diameter stainless steel sheath. Note: The factory default type is PT100-385 so if the 330 is being used with the Martel Model LPT100A probe you do not have to set the probe type. Simply plug the probe into the 330 and configure the display to read temperature.

• Page 20: Performing A Pressure Switch Test

  Figure 9 8. Performing a Pressure Switch Test Figure 10 To perform a switch test, follow these steps: 1. Change the setup to Setup 4 (default switch test). Setup 4: The upper display is set to [P1] ST, all other displays are off. Important NOTE: The pressure Switch Test can be performed with the following functions[P1] ST, or EXT ST.

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  3. Make sure the vent on the pump is open. Zero the calibrator if necessary. Close the vent after zeroing the calibrator. 4. The top of the display will read “CLOSE”. 5. Apply pressure with the pump slowly until the switch opens. Important NOTE: In the switch test mode the display update rate is increased to help capture changing pressure inputs.

• Page 22: Calibrating Transmitters

  9. Press the “NEW TEST” option to clear the data and perform another test. 10. Press the “DONE” option to end the test and return to the standard pressure setting. Example: [P1] ST will return to [P1]. Important NOTE: The previous example uses a normally closed switch. The basic procedure is still the same for a normally open switch, the display will just read “OPEN”…

• Page 23: Calibrating A Pressure-To-Current Transmitter

  9.2 Calibrating a Pressure-to-Current Transmitter To calibrate a pressure-to-current transmitter (P/I), perform the following steps: 1. Connect the calibrator and the pump to the transmitter. 2. Apply pressure with the pump. 3. Measure the current output of the transmitter. 4. Ensure the reading is correct. If not, adjust the transmitter as necessary. Figure 11.

• Page 24: Percent Error Function

  9.3 Percent Error Function The calibrator features a unique function which can calculate pressure vs. milliamp error as a percentage of the 4 to 20 mA loop span. The percent error mode uses all 3 screens and has a unique menu structure. It simultaneously displays pressure, mA and percent error.

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  4. LOOP POWER can be toggled on/off, select NEXT when done. 5. Use SELECT to toggle through the UNIT options, and select NEXT to move on. 6. Use the arrow keys to set the 100% point of the desired pressure range, select DONE SET when finished.

• Page 26: Minimum And Maximum Storage Capability

  Note: The 0% and 100% point will be saved in non-volatile memory until they are changed again by the user for the internal sensors, and external pressure modules. When using an external module the 0% and 100% are set to low and full scale of the module until the user changes it, or if it was previously saved.

• Page 27: Factory Setups

  11. Factory Setups The Calibrator is loaded with five factory commonly used setups. These setups are shown below. Note: Any of these setups can be changed and saved by the user. Setup 1: The upper display is set to [P1] mode and the lower is set to mA, middle is off. Setup 2: The upper display is set to [P1] mode and the lower is set to RTD, middle is off.

• Page 28: Custody Transfer / Flow Calibration

  NOTE: To use the remote control option a custom RS-232 cable must be purchased from Martel (LEM232). To contact Martel refer to Section 1.1 of this manual. With this connection the user can write programs on the…

• Page 29: Setting Up The Rs-232 Port For Remote Control

  terminal, such as Hyper Terminal, to enter single commands. Typical RS-232 remote configurations are shown in Figure 13. Figure 13. Calibrator-to-Computer Connection 13.2 Setting up the RS-232 Port for Remote Control Note: The RS-232 connection cable should not exceed 15m unless the load capacitance measured at connection points is less than 2500pF.

• Page 30: Changing Between Remote And Local Operation

  5. Select ASCII setup from File/Properties/Settings and mark these choices: Echo typed characters locally Wrap lines that exceed terminal width 6. Select Ok 7. To see if the port works enter *IDN?. This command will return information on the calibrator. 13.3 Changing Between Remote and Local Operation There are three modes of operation of the calibrator, Local, Remote, and Remote with Lockout.

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  Compound Commands Commands that contain more than one command on one line. For example; RTD_TYPE PT385_100;RTD_TYPE? Sets the calibrator to RTD type PT385_100 and queries it to verify. It will return: PT385_100 13.4.2 Character Processing The data entered into the calibrator is processed as follows: •…
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  13.4.4 Calibrator Status Error Queue If an error occurs due to invalid input or buffer overflow, its error code is sent to the error queue. The error code can be read from the queue with the command FAULT?. The error queue holds 15 error codes.

• Page 33: Remote Commands And Error Codes

  13.5 Remote Commands and Error Codes The following tables list all commands, and their descriptions, that are accepted by the calibrator. Table 5: Common Commands Command Description *CLS (Clear status.) Clears the error queue. *IDN? Identification query. Returns the manufacturer, model number, and firmware revision level of the Calibrator.

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  IO_STATE Set the calibrator’s mA state. IO_STATE? Return the calibrator’s mA state. LOCAL Returns user to manual operation of the calibrator LOCKOUT Locks out the keypad of the calibrator in remote operation LO_ERR Sets the 0% of span limit for percent error mode LO_ERR Returns the 0% of span limit for percent error mode MOTOR_ON…
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  LOWER Designates Lower display Milliamps of current MEASURE Measure state MEAS_LOOP Measure with loop power state MIDDLE Designates Middle display Resistance in ohms PCT_ERR Percent Error PERCENT Percent PT385_100 100 Ohm 385 Platinum RTD type PT392_100 100 Ohm 392 Platinum RTD type PTJIS_100 100 Ohm JIS Platinum RTD type P1 pressure measurement function…

• Page 36: Entering Commands

  13.6 Entering Commands Commands for the calibrator may be entered in upper or lower case. There is at least one space required between the command and parameter, all other spaces are optional. Almost all commands for the calibrator are sequential; any overlapped commands will be indicated as such.

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  CPRT_COEFC This command is used for entering a custom RTD into the calibrator. The numeric value entered after the command will be set as the first coefficient of the polynomial used by the custom RTD. For example: CPRT_COEFC –4.183000E-12 enters –4.183000E-12 as coefficient C. CPRT_COEFC? Returns the number that was entered for the third coefficient of the polynomial used in the custom RTD.
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  If you send DISPLAY? It will return ON, ON, ON if the all the displays are on. FAULT? Returns the error code number of an error that has occurred. The command may be entered when the previous command did not do what it was meant to do. For example, if a value for current output is entered that is bigger than the supported range (0-24mA) FAULT? Would return: 103 which is the code number for an entry over range.
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  If you send ERROR _PORT?, it will return P1 if the pressure port in percent error is [P1]. FUNC Sets the display indicated in argument one to the function indicated in argument 2. For example: To set the lower display to RTD mode send FUNC LOWER,RTD. FUNC? Returns the current mode of all displays.
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  IO_STATE? Returns the input/output/simulate state of the mA function of the calibrator. For example: If the calibrator was in mA simulate mode IO_STATE? Would return SIM. LOCAL Restores the calibrator to local operation if it was in remote mode. Also clears LOCKOUT if the calibrator was in lockout mode.
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  For example: If when measuring a P100-385 at 0 degrees cel sending OHMS? would return 1.000000E+02, OHM . This command also switches the calibrator into mA output mode. A number and a unit must be entered after the command. For example: OUT 5 MA sets the current output at 5 mA OUT? Returns the output of the calibrator.
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  PT385_100; PT392_100; PTJIS_100; CUSTOM; For Example: RTD_TYPE PT385_100 sets RTD type to PT100-385 RTD_TYPE? Returns the RTD type. For Example: If the RTD type is PT385_100, RTD_TYPE? Will return PT100_385. Sets the output for current simulation. This command also switches the calibrator into mA simulation mode.
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  TEMP_UNIT? Returns the temperature unit, (CEL or FAR) used when measuring RTDs for each of the 3 displays. VAL? Returns the value of any measurement taking place on the upper and lower display. For example, if the upper display is measuring 5mA, and the lower display is measuring 10V, then VAL? will return: 5.000000E-03, A, 1.000000E+01, V ZERO_MEAS…

• Page 44: Specifications

  14. Specifications (15 °C to 35 °C unless otherwise noted.) General Instrument Setup Recall 5; last used on power-up Environmental Operating Temperature -10 °C to +50 °C Storage Temperature -20 °C to +60 °C Power Requirements 12 VDC Battery Eight (8) AA alkaline, Lithium or NiMh cells Physical Dimensions 8”…

• Page 45: Warranty

  You can also call 1-800-821-0023 to have a form faxed. Martel will not be responsible for damage as a result of poor return packaging. Out of warranty repairs and recalibration will be subject to specific charges.

• Page 46: Service Center Calibration Or Repair

  6. Clean the o-ring assembly and the o-ring on the retention caps with IPA and inspect the o-rings closely for any damage or excessive wear. Replacements are included in the repair kit, if needed. 7. Inspect the springs for wear or loss of tension. They should be approximately 8.6 mm long in the relaxed state.

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  BetaGauge 330 Ranges and Resolutions Range (PSI) 30 PSI / 2.0 Bar 150 PSI / 10 Bar 300 PSI / 20 Bar Burst Pressure (PSI) 2000 Proof Pressure (PSI) Engineering Unit Factor 30.000 150.00 300.00 0.06894757 2.0684 10.3421 20.684 mbar 68.94757…
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  Tel: (603) 434-1433 800-821-0023 Fax: (603) 434-1653 Martel Electronics 3 Corporate Park Dr. Derry, NH 03038 8/10 Rev E 0219782…

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BETAGAUGE 330

Reference Manual