Assessments - 3, GPA: 4
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Facilidade de uso
Decimal Point for Process Input Type is passive. TEMPERATURE UNIT SUBMENU: Press d 8) Display flashes previous Temperature Unit selection. Press b 9) Scroll though the available selections to the Temperature Unit of your choice: °F or °C. Press d 10) Display shows STRD stored message momentarily and then advances to FLTR Filter Constant. FILTER CONSTANT SUBMENU: Press d 11) Display flashes previous selection for Filter Constant. Press b 12) Scroll though the available selections: 0001, 0002, 0004, 0008, 0016, 0032, 0064, 0128 Press d 13) Display shows STRD stored message momentarily only, if change was made, otherwise press a to advance to the next menu. If Process was selected in the Input Type Menu the display will advance to IN.RD Input/Reading Submenu, otherwise the display advances to the ALR1 Alarm 1 Menu. The Filter Constant Submenu allows the user to specify the number of readings stored in the Digital Averaging Filter. For PID control select filter value 0001-0004. A filter value of 2 is approximately equal to 1 second RC low pass time constant. 22 Reading Configuration (If Process was selected) INPUT/READING (SCALE AND OFFSET) SUBMENU: Input Voltage or Current can be converted or scaled into values appropriate for the process or signal being measured. So, a reading may be displayed, for example, in units of weight or velocity instead of in amperes or volts. The instrument determines Scale and Offset values based on two user-provided input values entered with the corresponding readings. Note that “In1” Input 1 and “In2” Input 2 are represented and entered as a product of the input voltage/current and the conversion number from the Table 3.1. The following instructions include details for a specific scenario in which a 4-20 mA input (in the 20 mA Process Mode) is to be represented as a measurement of 0-100 percent. Press d 14) Press d at the IN.RD prompt. Display shows IN1 Input 1 submenu. Press d 15) Display shows Input 1 value with 1st digit flashing. Press b & c 16) Use b and c buttons to enter IN1 value. The IN1 value = min. input value * conversion number. Disregard the position of the decimal point, such that 2000 counts may actually appear as “200.0”, “20.00”, or “2.000”. Example: 4 mA as 4(mA) x 500 = 2000. Press d 17) Display advances to RD1 Reading 1 Submenu. Press b & c 18) Use b and c buttons to enter RD1 value. This value represents IN1 in terms of some meaningful engineering units. To show the 4 mA as zero percent enter RD1 value = 0000. Example: RD1 value = 0000. Press d 19) Display IN!2 Input 2 Submenu. Press d 20) Display shows Input 2 value with 1st digit flashing. The IN!2 value = max. input value * conversion number. Example: 20(mA) x 500 = 10000 (9999). Press b & c 21) Use b and c buttons to enter IN!2 value. Press d 22) Display advances to RD!2 Reading 2 Submenu. Press b & c 23) Use b and c buttons to enter RD!2 value. Example: RD!2 value = 0100. Press d 24) Display flashes STRD stored message momentarily and then advances to ALR1 only, if change was made, otherwise press d to advance to ALR1 Alarm 1 Menu. 23 Conversion number is a coefficient of conversion between input values and real full display range (10000 counts, shown as 9999). See Table 3.2 below for proper conversion number. Table 3.2 Conversion Table RANGE CONVERSION NUMBER 100 mV 10000 / (100 x 1) = 100 1 V 10000 / (1000 x 1) = 10 10 V 10000 / (1000 x 10) = 1 0 -20 mA 10000 / (20 x 1) = 500 Example = 0 - 1 V = 0 - 100.0 In 1 = 0 Rd 1 = 0 Inp 2 = 9999 Rd 2 = 100.0 24 3.2.6 Alarm 1 This unit is equipped with two physical outputs that can only be configured as follows: Alarm 1 & Alarm 2, Alarm 1 & Output 2, Output 1 & Alarm 2, Output 1 & Output 2, Analog Out 1 & Alarm 2, Analog Out 1 & Output 2. Analog Out available only if Analog Output Option board is factory installed. If Analog Output Option is installed, the controller will skip Alarm 1 Menu item to Analog Output. Alarm must be DISABLED if Ramp is ENABLED. Figure 3.5 Flow Chart for Alarm 1 ENTER ALARM 1 MENU: Press a 1) Press a, if necessary, until CNFG prompt appears. Press d 2) Display advances to INPT Input Menu. Press a 3) Press a, if necessary, until Display advances to ALR1 Alarm 1 Menu. Press d 4) Display advances to Alarm 1 ENBL Enable or DSBL Disable Submenu and flashes the previous selection. 25 ALARM 1 ENABLE/DISABLE SUBMENU: Press b 5) Scroll though the available selection until ENBL displays to use Alarm 1. Press d 6) Display shows STRD stored message momentarily and then advances to ABSo only if it was changed, otherwise press a to advance to ABSo Alarm 1 Absolute/Deviation Submenu. If DSBL Alarm 1 Disabled was selected, all submenus of Alarm 1 Menu will be skipped and meter advances to ALR2 Alarm 2 Menu. If ENBL Alarm 1 Enabled was selected, Output 1 would be automatically Disabled, and reassigned as Alarm 1. ALARM 1 ABSOLUTE/DEVIATION SUBMENU: Press d 7) Display flashes previous selection. Press b to ABSo Absolute or _DEV Deviation. Press d 8) Disp...
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