SKI AccuFlo Zero Скачать руководство пользователя страница 11

AccuFlo

®

Zero 

– Installation and Operating Instructions 

11 

 

 

 

 

 

 

Installation and operating instructions AccuFlo

®

Zero 

 

Option 2:

 

+24-V-signal from AccuFlo

®

Zero to the control 

station mode as group message  
 

Remove/

open jumper „J2“. Connect terminal “E4” with “F4”! 

 

Table 5: Relay output - option 2: 

 

Terminal  Description 

Use 

 

E3 

Signal „Ready and Calibration Successful” 

+24 V if AccuFlo

®

Zero is ready and zero-

point calibration is successful 

 

Option 3: Externally supplied signal from AccuFlo

®

Zero to 

control station for 

status „Error“ and „Ready“ 

 

Remove/

open jumper „J2“. 

 

 

Table 6: Relay outputs 

– option 3: 

 

Terminal  Description 

Use 

 

E2 

ex * 

Externally supplied signal 

 

E3 

+ (Calibration) 

Signal „Calibration“ 

+ of the manually supplied signal after 
successful zero-point calibration 

 

E4 

+ (Calibration) 

Signal „Ready“ 

+ of the manually supplied signal if the 
AccuFlo

®

Zero is ready 

 
Option 4: Externally supplied signal from AccuFlo

®

Zero to 

control station as “group message“ 
 

Remove/open 

jumper „J2“. 

 

Table 7: Relay outputs 

– option 4: 

 

Terminal  Description 

Use 

 

E4 

ex * 

Externally supplied signal 

 

E3 

+ (Ready and 
calibration 
successful) 

Signal „ Ready and calibration successful “ 
+ of the manually supplied signal, if the 
AccuFlo

®

Zero is ready and the zero-point 

calibration is successful 

*Since  mechanical  relays  may  be  used,  also  for  example 

alternating voltage may be chosen.  

 

 

 

Содержание AccuFlo Zero

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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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