SKI AccuFlo Zero Installation And Operating Instructions Manual Download Page 1 | Manualshive

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AccuFlo

®

Zero

Automatic Zero-Point Calibration

For Differential Pressure Transmitters

Installation and Operating Instructions

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Summary of Contents for AccuFlo Zero

Page 1: ...AccuFlo Zero Automatic Zero Point Calibration For Differential Pressure Transmitters Installation and Operating Instructions...

Page 2: ...ctions 8 5 3 Status relay 9 5 4 Manual zero point calibration 9 5 5 Terminal assignment 9 6 Commissioning 13 6 1 General procedure 13 6 2 Successful set up 13 6 3 Optional correction of positioning wi...

Page 3: ...ce may lead to serious injury and or considerable damage to property 1 2 Qualified personnel The installation and operating must be realized by qualified personnel Qualified personnel includes persons...

Page 4: ...es of the product are not opened under pressure Fire near the product Appropriate measures are to be taken to secure that the product is taken out of operation in case of damage Improper mounting of t...

Page 5: ...l if the transmitter supports the necessary functions via HART The automatic zero point calibration is executed directly in the transmitter analog to a manual calibration with a possible present local...

Page 6: ...f supply for the following items AccuFlo Zero AccuFlo Zero 1 AccuFlo Zero 2 Threaded rods and screw nuts 7 16 UNF or M10 according to the transmitter for assembling of the system 3 PTFE seals for the...

Page 7: ...n case of measurement of liquids or steam the two locking screws without valve see above in Figure 1 Assembled AccuFlo Zero are to be replaced by the delivered locking screws with valve bleeder valve...

Page 8: ...cribed Power supply o The AccuFlo Zero needs a voltage supply of 24 V DC with a power rating of at least 2 1 ampere o We recommend a switch mode power supply o We recommend positioning the power suppl...

Page 9: ...ent loop is fixed and shown statically during this period Both relays may be connected in series in the AccuFlo Zero and provide a group signal A 1 signal is only sent if the AccuFlo Zero is switched...

Page 10: ...inal Terminal in transmitter Use A4 Differential pressure transmitter 4 20 mA D2 Connection between the AccuFlo Zero and the control station Table 3 Analog signal to the control station Terminal Descr...

Page 11: ...tputs option 3 Terminal Description Use E2 external Externally supplied signal E3 Calibration Signal Calibration of the manually supplied signal after successful zero point calibration E4 Calibration...

Page 12: ...Zero If necessary external triggering of the zero point calibration Table 8 Signal start zero point calibration from the control station to the AccuFlo Zero Terminal Description Use D4 GND GND of the...

Page 13: ...in the pipe system is stopped and there is no flow 2 Ensure that the system differential pressure transmitter AccuFlo Zero manifold impulse pressure lines and the condensate vessels are filled with wa...

Page 14: ...sult without positioning correction 6 5 Signaling to the control station Status information may be transmitted from the AccuFlo Zero to the control station Two relays are available For more informatio...

Page 15: ...entional power supply with classical transformer A substitution is recommended o Shielded wires may decrease the influence of external interference Connect the shield only one sided with the ground po...

Page 16: ...elements pitot tubes v cones etc Process and signal connection Material of wetted parts Stainless steel 1 4571 Process connection manifold IEC 61518 DIN EN 61518 Groove 18 5 mm Process connection tran...

Page 17: ...0 mA Supply of the transmitter Provided Digital communication HART Maximum wire length between AccuFlo Zero and transmitter 5 m Outputs Output signal Two wire interface 4 20 mA Maximum wire length bet...

Page 18: ...AccuFlo Zero Installation and Operating Instructions 18 Installation and operating instructions AccuFlo Zero 10 Declaration of Confirmity...

Page 19: ...AccuFlo Zero Installation and Operating Instructions 19 Installation and operating instructions AccuFlo Zero...

Page 20: ...on GmbH Postfach 41 01 31 D 41241 M nchengladbach Hanns Martin Schleyer Str 22 D 41199 M nchengladbach Tel 49 0 2166 62317 0 Web www ski gmbh com E Mail info ski gmbh com Registered trademarks and log...

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