SVI-II Instruc Man.book - Fagerberg

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Configuration and Calibration Calibration The valve must be isolated from the process before starting calibration. Calibration functions stroke the valve over it’s full range. Correct for Over Travel DO NOT perform AUTO TUNE while the valve is controlling the process. Adjust Input Signal Range At this time be aware that during Calibration and Configuration the valve moves. Keep hands clear. Isolate the valve from the process. On some valves the full travel is larger than the nominal travel of the valve and it may be desirable to have the reported 100% position correspond to the nominal travel rather than the full stroke. The STOP OP option allows this correction. Use this procedure if a correction is to be made. 1. From CALIB press * to display Stops. 2. Press + to display STOP OP. 3. Press * to move valve to the 100% position. 4. Using the + and - buttons, position the valve to the nominal full open position. 5. Press * to accept this position as the new 100% position. 1. SIG LO displays the input signal that corresponds to the full closed (ATO) or full open (ATC) position of the valve. 2. In SIG LO, if the displayed value is correct, press + to advance to the next item. 3. If not, press * to display value of SIG LO. 4. Use + and – buttons to change the value. 5. When OK, press * to return to menu and move to next item. SIG LO must be between 3.8 and 14.0 mA. 6. SIG HI displays the input signal that corresponds to the full open, ATO, or full closed, ATC position. In SIG HI, if the displayed value is correct, press + to advance to the next item. If not, press * to display value of SIG HI. Use + and – buttons to change the value. When OK, press * to return to menu and move to next item. SIG HI must be between 10.0 and 20.2 mA. SIG HI must be larger than SIG LO by at least 5 mA. 7. Calibration of the positioner is now complete. At -› MAN, press * to return to the MANUAL mode. MAN POS is displayed. 61
Masoneilan Dresser SVI II AP Instruction Manual Note: SIG HI and SIG LO allow adjustment of the input current range that corresponds to full valve travel. Normally they are set to 4 and 20 mA. Adjustment is normally required only for split range applications and provides flexibility for unusual applications. A separate ValVue 2.4 calibration procedure enables adjustment of the current sensing circuit to a precision current reference standard. CALIBration Menu CAUTION: These functions stroke the valve over its full range. Do not perform while the valve is controlling the process. CALIB * STOPS * RUNNING * + + + + + + TUNE SETUP STOP OP SIG LOW SIG HIGH * * * * * * * * STEP 1/3 +/- +/- +/- +/- CALIB * - + * * - + * - + STEP 2/3 * STEP 3/3 * * FAILURE If there is a calibration stops error "FAILURE" will display. Press * briefly and automatically return to the start of STOPS. FAILURE If there is a calibration tuning error "FAILURE" will display. Press * briefly and automatically return to the start of TUNE. Figure 30 Calibration Pushbutton Guide 62
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Warranty Items sold by Dresser, ®
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Masoneilan Dresser SVI II AP-1 Inst
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Mounting the SVI II AP on Rotary Va
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Pushbuttons and Local Display for C
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Pneumatic Cover Installation . . .
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Figure 42 Double Acting Pneumatic R
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Introduction 1 The SVI ® II AP (Sm
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Introduction Operational Overview A
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Installation and Set Up 2 Overview
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Installation and Set Up Pre-Install
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Installation and Set Up Installatio
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Installation and Set Up Mounting th
Page 26 and 27: Installation and Set Up Mounting th
Page 32 and 33: Installation and Set Up Installing
Page 38 and 39: Installation and Set Up Connecting
Page 40 and 41: Installation and Set Up Connecting
Page 42 and 43: Installation and Set Up Wiring the
Page 44 and 45: Check Out and Power Up 3 Overview T
Page 46 and 47: Check Out and Power Up Physical Ins
Page 48 and 49: Check Out and Power Up Physical Ins
Page 50 and 51: Check Out and Power Up Operational
Page 52 and 53: Check Out and Power Up Operational
Page 54 and 55: Using the Digital Interfaces Pushbu
Page 56 and 57: Using the Digital Interfaces Displa
Page 68 and 69: Using the Digital Interfaces Hand H
Page 70 and 71: Configuration and Calibration 5 Con
Page 72 and 73: Configuration and Calibration Confi
Page 74 and 75: Configuration and Calibration Confi
Page 78 and 79: Configuration and Calibration Check
Page 80 and 81: Configuration and Calibration Insta
Page 82 and 83: Wiring an SVI II AP Wiring Guidelin
Page 88 and 89: Wiring an SVI II AP HART Physical L
Page 90 and 91: Wiring an SVI II AP Split Range App
Page 98 and 99: HART Communications with Intrinsic
Page 104 and 105: Operation and Maintenance Physical
Page 110 and 111: Operation and Maintenance SVI II AP
Page 112 and 113: Operation and Maintenance SVI II AP
Page 114 and 115: Operation and Maintenance Upgrading
Page 116 and 117: Masoneilan Dresser SVI II AP Instru
Page 124 and 125: Air Supply Requirements C A high qu
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Advanced Usage E Technology to Maxi
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Advanced Usage Using ValVue 2.4 Dia
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Glossary Closed Compliance Voltage
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Glossary HART Communication The HAR
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Glossary Padj (%) Valves often have
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DIRECT SALES OFFICE LOCATIONS BELGI
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SVI-II Instruc Man.book - Fagerberg

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