KROHNE GFM 700 K Installation And Operating Instructions Manual
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KROHNE GFM 700 K Installation And Operating Instructions Manual

KROHNE GFM 700 K Installation And Operating Instructions Manual

Ultrasonic gas flowmeter
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 KROHNE 06/2003
7.30937.32.00
GR
Installation and
operating instructions
GFM 700 K
GFM 700 F
GFM 700 F - EEx ATEX
GFM 700 F/HT- EEx ATEX
Ultrasonic gas flowmeter
Variable area flowmeters
Vortex flowmeters
Flow controllers
Electromagnetic flowmeters
Ultrasonic flowmeters
Mass flowmeters
Level measuring instruments
Communications technology
Engineering systems & solutions
Switches, counters, displays and recorders
Heat metering
Pressure and temperature

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Summary of Contents for KROHNE GFM 700 K

  • Page 1  KROHNE 06/2003 7.30937.32.00 Installation and operating instructions GFM 700 K GFM 700 F GFM 700 F - EEx ATEX GFM 700 F/HT- EEx ATEX Ultrasonic gas flowmeter Variable area flowmeters Vortex flowmeters Flow controllers Electromagnetic flowmeters Ultrasonic flowmeters Mass flowmeters...
  • Page 2 Install the product securely and stable Install and connect cabling proper to exclude damage or harmful situations If the product does not operate normally refer to qualified KROHNE service technicians 10. Ther are no operator serviceable components inside the product...
  • Page 3 Nor does KROHNE make any commitment to update the information contained herin. This manual and all other documents are subject to change without notice. KROHNE will not be liable for any damage of any kind by using its product, including, but not limited to direct, indirect, incidental, punitive and consequential damages.

  • Page 4: Table Of Contents

    Content GFM 700 Ultrasonic gas flowmeter Size, flow velocity, flowrate Measuring principle Technical data 7 – 10 Versions, full-scale ranges, accuracies GFS 700 Primary head GFC 700 Signal converter 8 – 9 Environmental conditions Dimensions and weights Installation notes Electrical Electrical connections Electrical installation to the main supply voltage Operation of the signal converter...

  • Page 5: Gfm 700 Ultrasonic Gas Flowmeter

    GFM 700 Ultrasonic gas flowmeter First ultrasonic gas flowmeter with two beams Non-contact ultrasonic gas flow measurement and volume counting, suitable for all gases available meter sizes DN 50-600 and 2”-24”. Wide range of application The large range of products that can be Calibrated on EN 17025 accredited calibration rigs, measured accurately and easily make this a calibration accuracy better than 99.97% of the...

  • Page 6: Measuring Principle

    Measuring principle All KROHNE ultrasonic flowmeters operate using the Transit times t and t are measured continuously. The transit-time differential method. difference (t ) in time travelled by the two ultrasonic waves is directly proportional to the mean flow velocity Transit-time differential measurement is based on a ) of the product.

  • Page 7: Technical Data

    Versions, full-scale ranges, accuracies Versions Primary head (S) Signal converter (C) GFM 700 K integral system GFS 700 K GFC 700 K GFM 700 F remote system GFS 700 F...

  • Page 8: Gfc 700 Signal Converter

    GFC 700 Signal converter Versions Integral systems (K) GFC 700 K signal converter mounted on primary head Remote systems (F) GFC 700 F signal converter with wall mount (rotating design) and additional terminal box Option MP signal converter equipped with magnet sensors, to set the signal converter by means of hand held bar magnet without opening the housing Power supply...

  • Page 9: Environmental Conditions

    Local display 3-field LCD actual flowrate, measurement of sound velocity to determine (compo- Display function sition of) liquid product, forward, reverse and sum totalizer (7-digit) and status messages; each can be set for continuous or sequential display Units: actual flowrate , liter, US gallons per second, minute or hour, or in user-defined unit, e.g.

  • Page 10: Dimensions And Weights

    Please note for compact flowmeter: dimension “b“ see Table plus 210 mm weight see Table plus approx. 3.0 kg GFM 700 K Compact flowmeter GFS 700 S Primary head GFC 700 F Signal converter GFC 700 F – EEx Signal converter...

  • Page 11: Installation Notes

    Installation notes Inlet run: • downstream of a compressure or nozzle ≥ 40 x DN • downstream of a fan ≥ 30 x DN • downstream of fully open control valve ≥ 20 x DN • downstream of a 90° bend (elbow) ≥...

  • Page 12: Operation Of The Signal Converter

    Operation of the signal converter Table of settable functions Fct. Text Description and settings OPERATION Main menu 1.0 Operation 1.1.0 BASIC. Submenu 1.1.0 Basis parameters PARAM 1.1.1 FULL SCALE Full-scale range for flowrate Q 100% see Fct. 3.1.1 1.1.2 REV. SCALE Different range for reverse flow required? See Fct.
  • Page 13 Fct. Text Description and settings INSTALL Main menu 3.0 Installation 3.1.0 Submenu 3.1.0 Basisparameters BASIS.PARAM. 3.1.1 FULL SCALE Full-scale range for flowrate Q 100% Unit: select from list under Fct. 3.2.1 Value: 9.5 * 10 - 150.8 m /Sec or 3.9 - 1,987,200 US Gal/min After selecting unit, call numerical value with ↵...
  • Page 14 Fct. Text Description and settings 3.2.0 DISPLAY Submenu 3.2.0 Display 3.2.1 DISP. FLOW Unit for flowrate • m /Sec • Liter/Sec • US Gal/Sec • m /min • Liter/min • US Gal/min • m • Liter/hr • US Gal/hr • h Liter/hr or US.MGal/DAY (factory set, can be changed as required, see Fct.
  • Page 15 Fct. Text Description and settings 3.3.0 CUR.OUTP. I Submenu 3.3.0 Current output I 3.3.1 FUNCTION I Function, current output I • OFF (switched off) • F/R IND. (F/R indication, e.g. for F) • 1 DIR. (1 flow direction) • I<I 0 PCT (Forward / Reverse flow, e.g.
  • Page 16 Fct. Text Description and settings 3.4.0 FREQ. Submenu 3.4.0 Frequency output OUTP.F 3.4.1 FUNCTION F Function, frequency output F • OFF (switched off) • F/R IND. (F/R indication, e.g. for I) • 1 DIR. (1 flow direction) • 2 DIR. (forward / reverse flow, F/R measurement) •...
  • Page 17 Fct. Text Description and settings 3.5.0 USER DATA Submenu 3.5.0 User data 3.5.1 LANGUAGE Language for display texts, see Sect. 5.11 • GB/USA (English) • D (german) • F (French) • N (Dutch) 3.5.2 ENTRY.CODE. Entry code 1 for setting level required? See Sect.
  • Page 18 Fct. Text Description and settings 3.5.9 TOTAL. Totalizer reset (+ and −- totalizer together) RESET Inquiry: NO or YES 3.5.10 ENABL. Enable totalizer reset RESET for RESET/QUIT menu. Inquiry: NO or YES 3.5.11 PLAUSIB Error limit in % of measured value for ERR.

  • Page 19: Error Messages

    Error messages Fct. Text Description and settings PARAM. Main menu 4.0 Parameter error ERROR 4.1.0 FLOW FLOW VELOCITY “v” incorrect: VELOC. Ensure condition 0.5 m/s ≤ v ≤ 60 m/s or 1.5 ft/s ≤ v ≤ 180 ft/s is met! 4.1.1 FULL SCALE Full-scale range for flowrate Q...
  • Page 20 Fct. Text Description and settings 4.7.0 F > 1 kHz OUTPUT FREQUENCY too high: must be less than 1 kHz! 4.7.1 FULL SCALE Full-scale range for flowrate Q 100% see Fct. 3.1.1 4.7.2 PULSOUTP. Unit of frequency output F, see Fct. 3.4.2 4.7.3 PULSRATE Pulse rate for 100% flowrate or...

  • Page 21: Addition For The Gfm 700 F-Eex Atex And

    8. Addition for the GFM 700 F-EEx ATEX and GFM 700 HT EEx-ATEX 8.1 Safety instructions This product is designed for use in accordance with EN IEC 61010-1 for Installation Category 2 and Pollution Degree 2. Hazardous voltages are present within this product during normal operation.
  • Page 22 8.2.2 Gas flow sensor There are two types of gas flow sensors, namely the GFS 700 F-EEx (standard version) and the GFS 700 F/HT- EEx (high-temperature version). The GFS 700 F/…-EEx gas flow sensors are in conformance with the European Directive 94/9 EG (ATEX 100a) and approved by KEMA according to the European Standards EN 50xxx under the following number.

  • Page 23: Electrical Connection

    8.3 ELECTRICAL CONNECTION 8.3.1 General The GFC 700 F-EEx gas flow converter is always connected to one of two in Section 1.2 (see previous page) described GFS 700 F/…-EEx ultrasonic gas flow sensors via the factory installed MR04 type connecting cable. Both apparatus must also be incorporated into the equipotential bonding system via respectively the external M5 clamp terminal that is pressed into the connecting flange at the bottom of the signal converter housing (of GFC 700 F-EEx) and the M8 terminal on the warning plate of the GFS 700 F/…-EEx gas flow sensor.
  • Page 24 B1 B- B2 I+ I I ≤ 150 mA ≤ 32V 24 V Ri ≤ 680Ω Electronic or electro-mechanical totalizer Figure 3: Passive pulse output. Figure 4: Active current output. NOTE: The status output (terminals B1 and B-) can only be configured as passive output, the current output (terminals I+ and I) can only be configured as active output.
  • Page 25 Copper earth strip Flat cable of Display unit display unit Figure 5: Display unit (left) / Electronics unit after removal of display unit (right). 8.3.4 Replacement of electronics unit See the standard Installation and Operating Instructions for detailed information about resetting and reprogramming the new electronics unit after replacement.
  • Page 26 8.3.5 Replacement of power fuse(s) AC versions 115/230 VAC and 100/200 VAC Before commencing work, note the instructions in Section 2.3 ("Before opening"). Then continue as follows: Remove the cover of the electronics compartment. Unscrew the two screws A of the display unit and turn the display unit carefully aside. The fuse-holder in which the power fuse is mounted is accessible now to exchange the defect power fuse F1 for one with the same rating.
  • Page 27 The power fuses F1 and F2 (see Figure 7 below) can be replaced now. The 24 VAC/DC power supply uses two sub-miniature fuses of T1.25A in accordance with IEC 127-3. Reassemble in reverse order (points 3 through 1). Note the instructions of section 2.3 ("After opening") during reassembling. Location of power fuses (see detail in Figure 8) Figure 7: GFC 700 electronics unit with 24 VAC/DC power supply.
  • Page 28 8.3.6 Changing power supply voltage (not for 24 VAC/DC version) Before commencing work, note the instructions in Section 2.3 ("Before opening"). Then continue as follows: Remove the cover of the electronics compartment. Unscrew the two screws A of the display unit and turn display unit carefully aside or remove the unit completely by taking out the flat cable connector.

  • Page 29: Connecting Cables

    8.4 CONNECTING CABLES NOTE: The below described cables are shown in the connection diagram on the following page. Cable A: Quad coaxial cable Type MR04 (to be supplied by Krohne Altometer) Technical data: ≥ 500 V Test voltage ≥ 0.1 mm...

  • Page 30: Connection Diagram

    8.5 CONNECTION DIAGRAM "EEx d" cable gland "EEx e" junction box (incl. terminals) S1 = gas sensor 1 S2 = gas sensor 2 S3 = gas sensor 3 S4 = gas sensor 4 Gas sensors have type of protection flameproof enclosure "EEx d"...

  • Page 31: Atex Approvals

    ATEX approvals GFC 700 F - EEx Signal converter...

  • Page 34: Gfs 700 F - Eex Primary Head (Flowmeter)

    9.2 GFS 700 F - EEx Primary head (flowmeter)

This manual is also suitable for:

Gfm 700 fGfm 700 f-eex atexGfm 700 f/ht-eex atex

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