Standard Settings Calibration Form - Intergraph Smart Instrumentation - Help

Intergraph Smart Instrumentation Help

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Smart Instrumentation Version
13.1

In the Tag Calibration Settings window, if you use the Standard Settings calibration form, the following fields are available. Note that database column names may be modified by expressions where particular behavior is required. For information about customizing the form using InfoMaker, see Calibration Form Customization.

General

This section displays general instrument tag properties. The database columns in this section all belong to the COMPONENT table. All the values are read-only.

Name of Field

Database Column Name

Description

Tag number

cmpnt_name

Displays the tag number of the selected instrument.

Service

cmpnt_serv

Displays the tag number service, if available.

Serial number

spec_cmpnt_sn

Displays the serial number of the instrument, if available. This field may be editable according to the option specified under Serial number, manufacturer and model for the Allow to update property in Preferences > Calibration and Maintenance > General.

Function

cmpnt_func_type_id

Displays the process function of the instrument, as defined by the instrument type description.

Location

cmpnt_loc_id

Displays the instrument location, for example: Field, Equipment Room.

Ranges

This section applies to all instruments except for control valves. The database columns in this section and in the following sections all belong to the CALIBRATION_SETTING table. The calibration ranges that you enter for the current instrument tag are a prerequisite for the calibration procedure. The calibration ranges serve as a reference for the calibration performed on the selected tag.

Name of Field

Database Column Name

Description

Variable min.

calib_range_min

Type the minimum input calibration value.

Units of measure

calib_range_uom_min

Accept the default %, or for an absolute value, select the required unit of measure for the variable minimum. Note that you can also select %LEL (lower explosive limit).

(Pressure condition)

calib_range_uflg_min

If you selected a pressure unit of measure, select the required pressure condition: Gage, Absolute, or blank. For a volumetric flow unit of measure, select from: @ Flow; @ Normal; Standard; or Base.

Variable max.

calib_range_max

Type the maximum input calibration value.

Units of measure

calib_range_uom_max

Accept the default %, or for an absolute value, select the required unit of measure for the variable maximum. Note that you can also select %LEL (lower explosive limit).

(Pressure condition)

calib_range_uflg_max

If you selected a pressure unit of measure, select the required pressure condition: Gage, Absolute, or blank. For a volumetric flow unit of measure, select from: @ Flow; @ Normal; Standard; or Base.

Output signal min.

calib_set_output_min

Type the minimum output value.

Output signal max.

calib_set_output_max

Type the maximum output value.

Output signal UOM

calib_set_output_uom

From the list, select the unit of measure for the output signal.

Output type

calib_output_flg

Select the required signal output type: Linear or SQRT (square root signal output for flow instruments only).

Allowed leak rate (available for control valves only)

calib_set_leak_rate_al

Type a value for the allowed leak rate for the valve.

Units of measure

calib_set_leak_rate_al_uom

Allows you to enter the units of measure for the allowed leak rate, when available. It is up to you to select units of measure that are appropriate.

(Pressure condition)

calib_set_leak_rate_al_uom_ufl

If you selected a pressure unit of measure for the allowed leak rate, select the required pressure condition: Gage, Absolute, or blank.

Errors / Points

This section allows you to define various parameters related to error tolerances, and to specify the measurement points used to calculate the errors.

Name of Field

Database Column Name

Description

Calibration type

calib_type_id

From the list, select a calibration type appropriate for the instrument you are calibrating and for the type of calibration you want to perform. The available options are:

  • Multiple points — Allows you to specify up to 11 points for calibration on the Standard Settings form. If you want to enable more than 11 points, you must customize the form using InfoMaker.

  • Function check — Does not specify any calibration values. This option is used to check whether or not the instrument or equipment is working. For this option, in the Calibration Data Entry window under Miscellaneous, you can specify for the Calibration result property a value of Pass or Fail.

  • Switch set point — Allows you to specify up to four calibration points for a temperature or pressure switch.

  • Alarm / Trip / Set point — Specifies a single measurement point for calibrating a switch. When you select this option, you must enter a value in the Measuring point field.

  • Fiscal flow meter proving — A type of calibration for determining meter factor and repeatability. Requires you to customize your own forms and profiles if you want to use this option.

  • Tank level gauging — A type of calibration for tank-level gauging. Requires you to customize your own forms and profiles if you want to use this option.

Number of points

calib_set_no_point

Allows you to enter the required number of calibration points by means of the spinner or by typing a value. The available values depend on the calibration type that you select.

When in the Direction field you select Increase-Decrease, the calculation method for the number of points is as follows:

The value entered in the Number of points field, multiplied by 2 minus 1.

For example, if you entered 6 in the Number of points field then the actual number of points would be 11 (6 x 2 - 1=11).

Measuring point (available only when a single point is defined for calibration)

calib_set_single_pnt_level

You must type the calibration point value in this field when using a single calibration point.

Direction (not available for single point calibration types)

calib_pnt_direction

Displays the direction of the input value when making consecutive measurements: Increase, Decrease, or Increase- Decrease. The available options depend on the calibration type that you select.

Error type

calib_error_percent_flg

Select one of the following error types:

  • % of Span to calculate the error using the formula:

PPM All Outputs Graphic

  • % of Reading to calculate the error using the formula:

PPM All Outputs GraphicWhere i = calibration point number You are required to set values for upper tolerance and lower tolerance. You have the option to set either or both intermediate tolerance bounds as well. If the calculated value falls outside the bounds of the upper or lower tolerance bounds, the software highlights the result in red. If the result is within these bounds, but falls outside the intermediate bounds, the software highlights the result in light blue.

Upper tolerance

calib_error_percent

Type the upper tolerance value or percentage of the permissible calibration error.

Intermediate upper

calib_sub_upper_error

Allows you to enter the intermediate upper tolerance value or percentage of the permissible calibration error.

Lower tolerance

calib_error_percent_low

Type the lower tolerance value or percentage of the permissible calibration error.

Intermediate lower

calib_sub_lower_error

Allows you to enter the intermediate lower tolerance value or percentage of the permissible calibration error.

Tolerance units of measure

calib_error_percent_uom

Allows you to select a percentage or absolute value for the tolerance units of measure. Note that you can also select %LEL (lower explosive limit).

(Pressure condition)

calib_error_percent_uom_uflg

If you selected a pressure unit of measure for the tolerance, select the required pressure condition: Gage, Absolute, or blank.

Set value 1,2,3,4 (available only if under Calibration type you selected Switch Set Point)

cmpnt_set_point_l; cmpnt_set_point_ll; cmpnt_set_point_h; cmpnt_set_point_hh

Enter the calibration point values and directions for each of the switch points. The units of measure are those specified in the Tolerance units of measure field. The number of set point fields available depends on the value that you selected for Number of points.

Direction

cmpnt_set_point_l_dir; cmpnt_set_point_ll_dir; cmpnt_set_point_h_dir; cmpnt_set_point_hh_dir

Displays the direction for the specified switch setting: Increase, Decrease, or Increase- Decrease.

Calculate in loop error

calib_set_required_flg

To include the calibration error of the current instrument tag in the total loop calibration error, select Yes. To exclude the calibration error of the current tag from the total loop calibration error, select No.

Procedure number

procedure_no

If a number exists that identifies the particular calibration procedure that you are performing, you can enter the number in this field.

Scales

This section allows you to specify the display scales shown on the DCS or the instrument, which may differ from the actual values of the readings; for example, a display scale may represent a range of rpm values from 0-5000, but the scale itself displays numbers from 0-5 (with each unit corresponding to 1000 rpm). In this case, you would enter minimum and maximum values of 0 and 5 respectively. If needed, you can specify parameters for two display scales. Values for display scale 1 only are shown.

Name of Field

Database Column Name

Description

Minimum

disp_scale1_min

Type the lowest value for the range specified by the scale.

Maximum

disp_scale1_max

Type the highest value for the range specified by the scale.

Units of measure

disp_scale1_uid

Select the required unit of measure.

(Pressure condition)

disp_scale1_uflg

If you selected a pressure unit of measure, select the required pressure condition: Gage, Absolute, or blank.

Set Point

The set point is used for calibrating a pressure switch, and to work with the set point values, you must select for Calibration type the value Alarm / Trip / Set Point Calibration Error. You can either define the set point to be identical with one of the calibration points ( First Point, Second Point, and so forth) or you can enter an independent value.

Name of Field

Database Column Name

Description

Point

calib_set_point_flg

Select one of the following options:

  • None — Do not use set point definitions.

  • Free — Defines the set point according to the parameters you enter in this window.

  • 1st Point (or any other defined point) — Defines the set point as the selected alarm / trip point. All the point definitions will automatically be displayed in all the appropriate fields of the Set Point pane. Note that this option is applicable only after you have made your alarm / trip definitions.

The rest of the fields in this section are enabled only if you selected Free from the Point list.

Description

calib_set_point_desc

Type a description if needed.

Direction

calib_set_point_dir

Allows you to select the output direction: Increase or Decrease.

Point value

calib_set_point_value

Type the process value for the set point.

Units of measure

calib_set_point_uom

Allows you to select the point value units of measure.

(Pressure condition)

calib_set_point_uom_uflg

If you selected a pressure unit of measure, select the required pressure condition: Gage, Absolute, or blank.

Minimum

calib_set_point_min

Type the minimum set point value, which defines 0% on the measurement range used for calculating the set point As Found and As Left errors.

Maximum

calib_set_point_max

Type the maximum set point value, which defines 100% on the measurement range used for calculating the set point As Found and As Left errors.

Alarm / Trip Points

This section allows you to define alarm and trip settings. You can specify up to six different alarm or trip points. The values you enter appear in the Alarm / Trip Points Summary Window read-only window.

Name of Field

Database Column Name

Description

Type

trip_set_hihihi_flg

Allows you to select the required point type: Alarm, Trip, Other, or None. The point type appears in various reports.

Point level

calib_set_5_id

Allows you to select the required point level. Six shipped points are available: Hi-Hi-Hi, Hi-Hi, Hi, Lo, Lo- Lo, and Lo-Lo- Lo. You can define new points or modify the names of the existing points on the Calibration Points dialog.

Description

trip_set_desc_hihihi

Type a description if needed.

Direction

trip_set_dir_hihihi

Allows you to select the output direction: Increase or Decrease, to indicate whether the alarm or trip action occurs when the measured variable is increasing or decreasing. For example, if the instrument that you are calibrating indicates the liquid level in a tank, you can specify that an alarm will register at a certain value only when the liquid level is falling.

Point value

trip_set_point_hihihi

Type the process value for the alarm or trip.

Units of measure

trip_set_uom_hihihi

Allows you to select the appropriate point value unit of measure.

(Pressure condition)

trip_set_uom_hihihi

If you selected a pressure unit of measure, select the required condition: Gage, Absolute, or blank.

Minimum

trip_set_min_hihihi

Type the minimum point value, which defines 0% on the measurement range used for calculating the alarm or trip As Found and As Left errors.

Maximum

trip_set_max_hihihi

Type the maximum point value, which defines 100% on the measurement range used for calculating the alarm or trip As Found and As Left errors.

Other Alarm / Trip points follow suit as indicated in the table below (only the Type and Point level properties are shown):

Type

Point Level

trip_set_hihihi_flg

calib_set_5_id

trip_set_hihi_flg

calib_set_1_id

trip_set_hi_flg

calib_set_2_id

trip_set_lo_flg

calib_set_3_id

trip_set_lolo_flg

calib_set_4_id

trip_set_lololo_flg

calib_set_6_id