Martel Electronics BetaGauge 330 User Manual

BETAGAUGE 330

Reference Manual

BETAGauge 330 Reference Manual

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Contacting Martel / Beta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2 Standard Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.3 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2. Calibrator Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.1 Calibrator Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.2 Using the Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.3 Using the Zero Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.4 Other Menu Controlled Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3. Initial Setup and Basic Pressure Generation . . . . . . . . . . . . . . . . . .12

4. Measuring Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.1 Media Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.2 Measuring Pressure with External Modules . . . . . . . . . . . . . . . . . . . . .14

5. Measuring Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

6. Measuring Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

7. Measuring Temperature with an RTD . . . . . . . . . . . . . . . . . . . . . . .17

8. Performing a Pressure Switch Test . . . . . . . . . . . . . . . . . . . . . . . . .18

9. Calibrating Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

9.1 Using the mA Input Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

9.2 Calibrating a Pressure-to-Current Transmitter . . . . . . . . . . . . . . . . . . . .21

9.3 Percent Error Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

10. Minimum and Maximum Storage Capability . . . . . . . . . . . . . . . . . .24

11. Factory Setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

12. Custody Transfer / Flow Calibration . . . . . . . . . . . . . . . . . . . . . . .26

13. Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

13.1 Remote Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

13.2 Setting up the RS-232 Port for Remote Control . . . . . . . . . . . . . . . . .27

13.3 Changing Between Remote and Local Operation . . . . . . . . . . . . . . . .28

13.4 Using Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

13.5 Remote Commands and Error Codes . . . . . . . . . . . . . . . . . . . . . . . .31

13.6 Entering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

14. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

15. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

16. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

16.1 Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

16.2 Cleaning the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

16.3 Valve Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

16.4 Service Center Calibration or Repair . . . . . . . . . . . . . . . . . . . . . . . . .44

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. The model 330-300 uses a manual pump to reach higher pressures up to 300 psi. An external pressure module option allows an even wider range of pressure calibration options including absolute and differential.

1.1 Customer Service

Corporate Office:

www.martelcorp.com

e-mail: sales@martelcorp.com

Tel: (603) 434-1433 800-821-0023 Fax: (603) 434-1653

Martel Electronics

3 Corporate Park Dr.

Derry, NH 03038

1.2 Standard Equipment

Check to see if your calibrator is complete. It should include: BetaGauge 330 Calibrator, instruction manual, test leads, calibration hose kit with fittings, carrying case, calibration certificate with data.

1.3 Safety information

Symbols Used

The following table lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual.

Symbol Description

AC (Alternating Current)

AC-DC

Battery

CE Complies with European Union Directives

Double Insulated

Symbol Description

Electric Shock

Fuse

PE Ground

Hot Surface (Burn Hazard)

Read the User’s Manual (Important Information)

Off

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.

• “Caution” identifies conditions and actions that may damage the instrument being used.

Use the calibrator only as specified in this manual, otherwise injury and damage to the calibrator may occur.

Warning

To avoid possible electric shock or personal injury:

• Do not apply more than the rated voltage. See specifications for supported ranges.

• Follow all equipment safety procedures.

• Never touch the probe to a voltage source when the test leads are plugged into the current terminals.

• Do not use the calibrator if it is damaged. Before you use the calibrator, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors.

• Select the proper function and range for your measurement.

• Make sure the battery cover is closed and latched before you operate the calibrator.

• Remove test leads from the calibrator before you open the battery door.

• Inspect the test leads for damaged insulation or exposed metal. Check test leads continuity. Replace damaged test leads before you use the calibrator.

• When using the probes, keep your fingers away from the probe contacts. Keep your fingers behind the finger guards on the probes.

• Connect the common test lead before you connect the live test lead. When you disconnect test leads, disconnect the live test lead first.

• 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.

• Disconnect test leads before changing to another measure or source function.

• When servicing the calibrator, use only specified replacement parts.

• To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.

Caution

To avoid possible damage to calibrator or to equipment under test:

• Use the proper jacks, function, and range for your measurement or sourcing application.

2. Calibrator Interface

Figure 1 shows the location of the pressure controls, connection port and electrical inputs.

Figure 1

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

No. Name Description

1 Function Keys These are soft keys used to configure the calibrator

2 ON/OFF Key This key is used to turn the calibrator on and off

3 ZERO Key This key is used to zero pressure measurements

4 Arrow Keys Used to control mA source/sim. and to set pump and %

error limits

5 Home Key Return to main menu screen

6 Pump Key Push to run pump (Electric pump version)

6 Backlight Figure 2B only - for manual pump version

Note: When the calibrator is turned on by pressing the ON/OFF key, it will go through a short startup self-check routine. During that routine, the display shows the current firmware revision level, auto shutdown status and the range of the internal pressure sensor. The calibrator requires a maximum of 5 minutes warm-up to rated accuracy. Large changes in ambient temperature may require a longer warm-up period. See section 2.3 for instructions on zeroing the pressure sensor displays. Pressure ranges

should be zeroed each time the calibrator is started.

Figure 2B

Keypad (Manual Pump Version)

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. Figure 3 shows the location of the different display fields while table 3 describes them.

Figure 3

Display

Table 3 Display Functions

No. Name Description

1 Primary Parameters Indicates what is being measured.

2 Span Indicator Indicates the percent of the 4 to 20 mA span. (For mA and

mA Loop functions only)

3 Pressure Units Indicates one of 15 pressure units available for display.

4 Units Indicates the unit of measure for the display.

2.1.1 Top Level Menu Functionality

There are three options for this menu: MENU, {Active Display}, and LIGHT. The Top Level Menu is home for the menu display.

2.1.1.1 Using the MENU Option

The MENU option is the gateway to the rest of the menu system.

2.1.1.2 Using the Active Display Option

The active display is indicated by the center option on the Top Level Menu. It is used to select the display to which the ZERO key will apply.

2.1.1.3 Using the LIGHT OPTION

The backlight can be toggled on and off using this key.

2.1.2 Main Menu Functionality

There are three options on the Menu, CONFIG, {Active Display} and MORE. The Main Menu is home for the menu display.

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.

Here the SELECT option will toggle through the choices for each parameter. The first parameter is MODE. Since voltage, current and switch test modes all use the same jacks, two of these functions cannot be used concurrently. The ability to select certain functions is limited based on what is already selected in another display. The NEXT option is used to change to the second parameter. Only RTD and Pressure modes have a second parameter, RTDs can be read in Celsius or Fahrenheit and Pressures can be read in 11 engineering units.

With a single display the following modes are available:

P[1] = Pressure internal sensor.

[EXT] = Pressure with external pressure module.

P[1] ST = Switch Test with left side sensor.

[EXT] ST = Switch Test with external pressure module.

Note: mA functions are only available on the Lower Display.

mA measure = Milliamps measure without loop power.

mA w/24V = Milliamps measure with loop power.

mA source = Milliamps source.

mA sim = Milliamps simulate using an external supply from the UUT.

VOLTS = Voltage Measure.

RTD = RTD Temperature Measurement (if a probe is connected).

The following table shows which functions are available concurrently.

An X in a column indicates that the mode in the active display will not be available for selection if the mode in that row is in use in any other display.

Table 4 Mode Concurrency

CURRENT DISPLAY

P[1] [EXT] P[1] [EXT] mA mA Volts RTD

ST ST Loop

P[1]

[EXT]

P[1]ST X X X X X

[EXT]ST X X X X X

mA X X X X

mA Loop X X X X

Volts X X X X

RTD

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. The 330-300 psi has a dedicated backlight key. It toggles on and off when the key is pressed; this is one of the few functions that cannot be controlled by the serial interface. There are no user configuration settings for the backlight.

2.3 Using the Zero Function

When the ZERO KEY is pressed, the calibrator will zero the active display if a pressure mode is selected, and the pressure is within the zero limit. The zero limits are within 10% of the full scale range of the selected sensor. If the display indicates “OL,” the zero function will not operate.” Note: The ZERO KEY is only used for pressure.

2.3.1 Internal Sensor and Pressure Module (non-absolute)

When a sensor or module is selected on the active display and the ZERO KEY is pressed the calibrator subtracts the current reading from the output. The zero limits are within 10% of the full scale range of the selected sensor. If the display indicates “OL,” the zero function will not operate.

2.3.2 Absolute Pressure

When an absolute pressure range is selected on the active display and the ZERO KEY is pressed the calibrator prompts the user to enter the barometric reference pressure. This is done using the arrow keys (F2 and F3 Keys). The sensor port should be open (vented) to atmosphere while performing this procedure.

OTHER DISPLAYS

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’ menu and the DONE option returns home . For the last ‘sub-main’ menu the NEXT option wraps around to home. See Figure 4 for a

detailed mapping of the menu structure.

A note on naming convention:

If a ‘sub-main’ menu has subordinate menus, it will henceforth be referred to as {function} Main Menu. E.g. the display contrast sub-main menu will be called the

Contrast Main Menu. If not it will be called the {function} menu.

2.4.1 Setting the Contrast

From the Contrast Main Menu choose the CONTRAST option to access the Contrast Adjustment Menu.

Use the F2, F3 keys to adjust the display contrast to the desired level and then use the CONTRAST DONE option to return home.

2.4.2 Locking and Unlocking Configurations

Use the LOCK CFG or UNLOCK CFG option of the Configuration Lock Menu to lock or unlock the display configuration.

When the LOCK CFG option is chosen the menu display returns home and the CONFIG option on the Main Menu indicates that it is locked. Also all menus are locked out with the exception of the Min Max Menu, Contrast Adjustment menus and the Configuration Lock Menu. When the UNLOCK CFG option is chosen the configuration is unlocked and the menu display continues to the next sub-main menu.

2.4.3 Saving and Recalling Setups

The calibrator will automatically save the current set-up for recall at power-up. Additionally 5 set-ups can be accessed through the SETUPS menu. Select the SETUPS option from the Setups Main Menu.

Choose SAVE to save a set-up , RECALL to recall the set-up, or DONE to do nothing and return home.

10 Figure 4

Menu Map

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.

2.4.4 Setting AutoShut-off Parameters

The calibrator can be set to automatically shut-off after a selected number of minutes; this function can also be disabled. To set the auto shut off parameters select the AUTO OFF option on the Auto Shut Off Main Menu.

Use the F2, F3 keys to select the number of minutes before the calibrator turns off or disable auto shut-off by scrolling all the way down.

Use the AUTO OFF DONE option to set the parameters and return home. The auto shut off time is reset whenever a key is pressed.

2.4.5 Activating and Deactivating a Display

Use the DISPLAY option on the Display Selection Main Menu to access the Display Activation Menu.

The {display} option can be used to select which display to act upon. The ON/OFF option turns the selected display on or off. The selected display and current on/off state are displayed in the lower display.

Use the DONE option to save the changes and return home. When a display is deactivated its configuration is retained. When the display is activated its configuration is

checked against the configurations of the other currently active displays, if the configurations are in conflict the recalled display’s configuration is modified to avoid the conflict. If all three displays are deactivated the LOWER display will come on

automatically

2.4.6 Setting the RTD probe type

Use the PROBE TYPE option of the RTD Probe Type main menu to access the RTD Probe selection menu.

There are four probe types to select from P100-385, P100-392, P100-JIS and CUSTOM. Use the SELECT option to select the desired probe type and the DONE option to store the change and return home.

Note: The default probe type is PT100-385.

2.4.7 Damping

Damping can be turned ON or OFF using the Damping menu selection. When damping is ON, the calibrator displays an running average reading of ten measurements. The calibrator makes approximately 3 readings per second.

2.4.8 Pump Limits

To prevent overpressure of sensitive devices the maximum pressure (pump limit) can be set. 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.

Note: When the HART resistor is on the maximum load driving capacity is 750 ohms.

3. Initial Setup and Basic Pressure Generation

1. The BetaGauge 330 is supplied with a special low volume calibration hose kit to facilitate faster pumping to pressure and quick pressure stabilization. the kit also comes with the required “quick-fit” hose connectors and a BSP adapter for non-NPT applications. It is highly recommended that this type of hose is used to achieve the best performance of the product. Once the fittings are installed and the calibrator is connected to the unit under test (UUT) the calibrator is ready for use. Figure 5 shows a typical setup.

2. Before generating pressure make sure you have the 330 configured for your application. If needed review section 2 of the manual again to select the proper configuration.

3. Make sure that the pressure vacuum knob is set for the function you want to perform (+ for pressure and – for vacuum).

4. Close the vent knob.

5. Press the pump key (or manually stroke the pump on the 300psi/20 bar model) and watch the pressure (or vacuum) increase until you reach the desired pressure.

Note: On the electric pump version the motor speed will start slowly when

pressure is low (<15psi) to allow better control at low pressures.

6. Use the fine adjustment vernier to fine tune the pressure/vacuum reading as needed.

7. To reduce or bleed off the pressure entirely slowly rotate the vent knob to the open position. Doing this step carefully will allow you to control the pressure bleed rate to a high degree and will facilitate taking down-scale pressure readings.

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. Because the pump has an upper pressure generation limit of 160psi there may be atmospheric conditions where it cannot achieve the full scale pressure of 150psi. High altitude use (about 3000 ft or 1000 meters) or use at cold temperatures may limit the pump to about 135psi (9 Bar). In these cases the vernier adjustment can be used to generate the additional pressure needed if full scale pressure must be generated.

In these situations the user should begin the calibration with the vernier in the full counter clockwise position and then when the electric pump reaches its limit turn the vernier in the clockwise direction to raise the pressure and to set the desired reading.

Figure 5

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