6F8A0883 ELECTROMAGNETIC FLOWMETER MODEL GF630, GF632 DETECTOR INSTRUCTION MANUAL for FM Approval and CSA Certification © TOSHIBA Corporation 2008 All Rights Reserved. NOTES Before using the equipment, please read this manual carefully and understand the contents, and then use the equipment correctly. • NEVER attempt to operate the equipment in any ways that are not described in this instruction manual.
6F8A0883 NOTICE We thank you very much for your purchase of our GF630 series electromagnetic flowmeter detector. Integral type GF630/LF600F and GF630/LF610F Separate type detector GF632 This instruction manual describes the notes on using an electromagnetic flowmeter detector, installation, configuration and maintenance. It is intended for the personnel in charge of installation, operation and maintenance.
6F8A0883 SAFETY PRECAUTIONS Safety signs and labels affixed to the product and/or described in this manual give important information for using the product safely. They help prevent damage to property and obviate hazards for persons using the product. Make yourself familiar with signal words and symbols used for safety signs and labels. Then read the safety precautions that follow to prevent an accident involving personal injury, death or damage to property.
6F8A0883 SAFETY PRECAUTIONS Safety Precautions for Installation and Wiring WARNING Do not disconnect while circuit is live unless location is known to be nonhazardous. Live part of electric circuit or a high temperature department can cause explosion. DON’T Do not modify or disassemble the enclosure. Strength degradation and defects of enclosure can cause explosion. DON’T Do not use parts of other products. Protective performance degradation for hazardous location can cause explosion.
6F8A0883 SAFETY PRECAUTIONS(continued) Safety Precautions for Installation and Wiring CAUTION Install a switch and fuse to isolate the GF630/LF600F, GF630/LF610F and GF632 from mains power. Power supply from mains power can cause electric shock or circuit break-down. Use an appropriate device to carry and install the GF630/LF600F, GF630/LF610F and GF632. Turn off mains power before conducting wiring work. Do not modify or disassemble the GF630/LF600F, GF630/LF610F and GF632 unnecessarily.
6F8A0883 SAFETY PRECAUTIONS (continued) Safety Precautions for Maintenance and Inspection CAUTION Do not conduct wiring work with wet hands. Wet hands may result in electric shock. Do not conduct wiring work when power is applied. Wiring while power is applied can cause electric shock. DON’T DON’T Do not touch the GF630/LF600F, GF630/LF610F and GF632 main body when high temperature fluid is being measured. The fluid raises the main body temperature and can cause burns when touched.
6F8A0883 Handling Precautions To obtain the optimum performance from the GF630/LF600F, GF630/LF610F and GF632 for years of continuous operation, observe the following precautions. (1) Do not store or install the flowmeter in: ・Where there is direct sunlight. ・Where there is snow and ice Infrared switches may not function correctly. ・Where excessive vibration or mechanical shock occurs. ・Where high temperature or high humidity conditions obtain. ・Where corrosive atmospheres exist.
6F8A0883 Handling Precautions (continued) (6) If the inside of the converter and detector's terminal box are wetted or humidified, it may cause insulation deterioration, which can result in fault or noise occurrence. So do not conduct wiring in the open air on rainy days. Also, be careful not to wet down the converter and detector's terminal box even in the case of indoor wiring, and complete wiring work in a short period of time. (7) Make sure the fluid to be measured will not freeze in the detector pipe.
6F8A0883 Table of Contents SAFETY PRECAUTIONS ····················································································· 2 Handling Precautions ······························································································ 6 1. Product Inspection and Storage ······································································ 9 1.1 Product Inspection ······················································································· 9 1.
6F8A0883 1. Product Inspection and Storage 1.1 Product Inspection GF630 series electromagnetic flowmeter is shipped in a cardboard container filled with shock-absorbing materials. Open the package carefully and check as follows: Make sure the following items are included in the package.
6F8A0883 2. Overview The GF630/LF600F, GF630/LF610F and GF632 electromagnetic flowmeter can be use in the following hazardous (classified) locations. ClassⅠ, Division 2, Groups A, B, C and D, ClassⅡ, Division 2, Groups E, F and G ClassⅢ The GF630 and GF632 electromagnetic flowmeter measures the volumetric flow rates of electrically conductive materials on the basis of Faraday's Law of electromagnetic induction.
6F8A0883 3. Names of Parts 3.1 Appearance 3.1.1 Appearance of GF630/LF600F and GF630/LF610F Integral For the detail of the converter, check the converter LF600F and LF610F instruction manual.
6F8A0883 3.1.2 Appearance of Detector GF632 Separate for Excitation cable 1/2 – 14 NPT Ground terminal for detector for Signal cable 1/2 – 14 NPT Terminal Box Cover Terminal Box Flow direction arrow Hanging hook *Provided for upper 8 inch (200mm to 600mm) Flange Ground cable* Grounding ring ( Provided for PTFE lining only ) Figure 3.1.2 Appearance of Detector GF632 Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5 as needed.
6F8A0883 3.2 Construction of the terminal blocks 3.2.1 Terminal Block Construction of GF630/LF600F and GF630/LF610F Type For the detail of the converter, check the converter LF600F and LF610F instruction manual. Integral 3.2.2 Terminal Block Construction of GF632 Type Separate To signal cable terminal (A,B and G) B A To excitation cable terminal(X,Y and E) E G Y X Don’t connect wiring to this terminal. Figure 3.2.
6F8A0883 4. Installation Safety Precautions for Installation WARNING Do not active live circuits under environment of explosive atmospheres. Live part of electric circuit or a high temperature department can cause explosion. DON’T Do not use parts of other products. Protective performance degradation for hazardous location can cause explosion. DON’T Do not active live circuits While assembly of all components is not over.
6F8A0883 CAUTION Ground the GF630/LF600F, GF630/LF610F and GF632 independently from power equipment. (100 ohm or less ground resistance) DO Operating this product without grounding can cause electric shock or malfunction. Install a switch and fuse to isolate the GF630/LF600F, GF630/LF610F and GF632 from mains power. DO Power supply from mains power can cause electric shock or circuit break-down. Use an appropriate device to carry and install the GF630/LF600F, GF630/LF610F and GF632 .
6F8A0883 4.1 Notes on Selecting the Installation Location 1. 2. 3. Avoid places within the immediate proximity of equipment producing electrical interference (such as motors, transformers, radio transmitters, electrolytic cells, or other equipment causing electromagnetic or electrostatic interference). Avoid places where excessive pipe vibration occurs. Avoid places where fluid is pumped in a pulsating manner Avoid places where there is direct sunlight.
6F8A0883 (2) Preventing an Empty Pipe Condition Fix the relevant pipes installed on both sides of the detector by attaching fittings, etc. to support the pipe. By supporting the pipes, not only the pipe vibration is reduced but also the damage to the pipes by the electromagnetic flowmeter's weight and the fluid mass (see Figures 4.2 and 4.3). Pipe support fittings Pipe support fittings Figure 4.2 Example of Pipe Fixing Procedure Figure 4.
6F8A0883 4.2.2 Installation Procedure In the case that the piping is non-conductive material, make sure to install the grounding rings(option) to each flange of detector using the M4 screw before piping . The M4 screws are prepared to each flange. In addition, in the case of detector with FEP lining, make sure to install the gaskets between grounding ring and lining. The gaskets must be installed so as not to protrude into the measurement tube.
6F8A0883 To mount the GF63*, place it between the upstream and downstream pipe flanges and tighten it with flange bolts and nuts. See Figure 4.5 and follow the procedure below: 1. 2. 3. 4. 5. 6. Insert two lower mounting bolts through the clearance holes in the upstream (or downstream) pipe flange. Install a gasket next to the upstream (or downstream) flange face and the other gasket next to the downstream (or upstream) pipe flange.
6F8A0883 Table 4.1 Bolt length and Nut tightening torque ANSI class 150 Machine Bolts Meter size P.C.S Diameter Length [inch] Tightening torque [N・m] *1 15mm 1/2” 4 1/2” 2” 7 to 9 25mm 1” 4 1/2” 2.16” 14 to 17 32mm 1 1/4” 4 1/2” 2.16” 19 to 24 40mm 1 1/2” 4 1/2” 2.36” 16 to 21 50mm 2” 4 5/8” 2.56” 37 to 46 65mm 2 1/2” 4 5/8” 2.95” 52 to 66 80mm 3” 4 5/8” 2.95” 55 to 69 100mm 4” 8 5/8” 2.95” 40 to 51 125mm 5” 8 3/4” 3.
6F8A0883 4.2.3 Precautions in transportation To prevent the device from being damaged during transportation, the original packing should be left untouched until the device arrives near the intended installation site. The detector is equipped with hanging hooks. Lift it as shown in Figure 4.5. For information on the actual mass of each diameter, refer to Table 4.2. CAUTION A bar, etc. to lift the flowmeter.
6F8A0883 4.3 Piping Connections (1) Required Upstream Straight Pipe Length If various joints are used upstream of the detector outlet, the straight pipe length as shown in Table 4.3 is required. Table 4.3 Required straight pipe length on the upstream side L=5D L=10D (5) Other valves (not fully opened) (1) 90°bent L L (2) Tee L (3) Diffuser L (4) Fully opened sluice valve L L: Required straight pipe length—straight pipe length plus half length of the detector.
6F8A0883 (2) Pipe Orientation The detector may be installed in horizontal, vertical or sloping pipe runs as shown in Figure 4.6. However, except for horizontal installation, fluid should flow from lower to upper directions. If no air bubble, Vertical down flow application are acceptable under pressured piping conditions. See Figure 4.6. Flow direction (b) Detector (a) Horizontal pipe installation (b) Vertical pipe installation (c) Sloping pipe installation (c) (a) Ground surface Figure 4.
6F8A0883 (3) Flow Direction Install the detector in accordance with the flow direction arrow on the detector. See Figure 4.8. Flow direction arrow Figure 4.9 Flow direction arrow on the detector (4) Preventing an Empty Pipe Condition Design an upright pipe run (Figure 4.9) or sufficient head pressure (Fig. 4.10) at the downstream detector outlet if there is a possibility of the detector pipe becoming emptied. Upright pipe run Detector Figure 4.
6F8A0883 4.4 Grounding CAUTION Do not wire cables and replace parts when power is supplied. DON’T Do not work on piping and wiring with wet hands. Wet hands may result in electric shock. Wiring work and replacing parts in the power-on state may cause electric shock. DON’T (1) Grounding of the GF630/LF600F and GF630/LF610F type Integral Ground as shown in Figure 4.12. Make the grounding wire as short as possible. Use grounding wire material of IV wire 5.5mm2 or more.
6F8A0883 (2) Grounding of the GF632 type Ground the external grounding terminal of the detector and the FG terminal of the converter (or external grounding terminal of the converter) securely (grounding resistance 100ohm or lower). Use grounding wire material of IV wire 5.5mm2 or more. Do not share a grounding wire with other instruments where grounding current may flow. (An independent grounding is preferable.
6F8A0883 5. Wiring Safety Precautions for Wiring WARNING DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS LOCATION IS KNOWN TO BE NONHAZARDOUS. Live part of electric circuit or a high temperature department can cause explosion. DON’T Do not active live circuits While assembly of all components is not over. Protective performance degradation for hazardous location can cause explosion.
6F8A0883 CAUTION Install a switch and fuse to isolate the GF630/LF600F, GF630/LF610F and GF632 from mains power. Power supply from mains power can cause electric shock or circuit break-down. Turn off mains power before conducting wiring work. Do not work on piping and wiring with wet hands. Ground the LF600F and LF610F independently from power equipment. (100 ohm or less ground resistance) Operating this product without grounding can cause electric shock or malfunction.
6F8A0883 Notes on wiring CAUTION (1) The apparatus does not be provided with the cable connections. Please prepare yourself for the cable connections which could be used in Division2 hazardous locations. The cable lead –in section must be tightened securely to keep air tightness. (2) Select the cable runs away from electrical equipment (motors, transformers, or radio transmitters) which causes electromagnetic or electrostatic interference.
6F8A0883 5.2 External Device Connections and Grounding For the notes on connecting, wiring and installation of the combined converter, check the model number of the combined converter and read the instruction manual of the relevant converter. 5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring To avoid 2-point grounding, ground the shield of output cable basically at the receiving side. Use a grounding wire of IV wire 5.5mm2 or more. The size of the external grounding terminal screws is M4.
6F8A0883 5.4 Wiring 5.4.1 Terminal Treatment of Cables Follow the procedures below to treat the terminals (at the converter side) of various cables and install the cables to the terminal block. Use appropriate cables based on the description in Section 5.1 "Cables." Crimp a round type insulated crimp-type terminal to the end of the cables. (1) Power cable, current output cable, digital I/O cables The necessary cables should be ordered from the person responsible for the installation.
6F8A0883 (3) Connecting the input signal cable Separate Strip the sheath from the end of each conductor of a 2-core individually shielded cable as shown in Figure 5.4. Twist those shields and cover them with a thermal contraction tube or vinyl tube not to make contact with the case or core wires. Then attach an M3.5 crimping terminal with insulated sleeve as shown in Figure 5.3.
6F8A0883 5.4.2 Cable Connection Separate Connect and install the terminal-treated cables to the terminal block. *Connect the cables to the terminal block securely. A loose connection may cause incorrect measurement. After connecting a cable, try to pull it to check whether it has been connected securely. (1)Referring to combined converter's manuals of "Connections and Grounding", connect each cable to the terminal block. Tighten the screws of the terminal block tightly to ensure the secure connection.
6F8A0883 6. Operation CAUTION Do not touch the terminal board when power is supplied. Touching the terminal board when power is supplied can cause electric shock. DON’T Do not touch the main body when high temperature fluid is being measured. The fluid raises the main body temperature and can cause burns. DON’T Preparatory check Follow the procedure described below to prepare before starting the flow measurement (described with regard to the entire flowmeter).
6F8A0883 7. Maintenance and Troubleshooting Safety precaution for Maintenance and Troubleshooting WARNING Do not disconnect while circuit is live unless location is known to be nonhazardous. Live part of electric circuit or a high temperature department can cause explosion. DON’T Do not modify or disassemble the enclosure. Strength degradation and defects of enclosure can cause explosion. DON’T Do not use parts of other products.
6F8A0883 7.1 Maintenance Cleaning Adhesion might be created in the detector over a long period of time when used on certain materials. Try to confirm whether to cause the adhesion in the detector pipe when the phenomenon is seen, and and an abnormality (ex. decreasing indication, etc.) is confirmed. Please clean with a soft brush etc. and remove any unnecessary build up inside the meter.
6F8A0883 7.2 Troubleshooting If a problem occurs while using the GF630/LF600F, GF630/LF610F and GF632, follow the flowcharts described below. You may find a way to solve the problem. The flowcharts are based on three symptoms (1) to (3). If you cannot solve the problem, contact your nearest Toshiba representative. 7.2.1 Flow rate is not indicated START Are power supplies correct for each device? NO Use the correct power supply for each device.
6F8A0883 7.2.2 Flow rate indicated is not correct START Is the flow range correctly set? NO Set correctly. Refer to combined converter's manual. NO Perform the zero adjustment. YES Is zero point correctly set? Refer to combined converter's manual. YES Is the excitation current value as stated on the flow direction tag? NO Set correctly. Refer to combined converter's manual. YES Is the inside wall of detector YES pipe contaminated? Clean the inside of the detector pipe.
6F8A0883 7.2.3 Flow rate indication is not stable START Is power supply voltage within the specified range? NO Use a power supply within the specified range. NO Connect each cable securely to the terminal board. NO Ground the flowmeter with a copper braid or wire(5.5 mm² minimum) to a good earth ground.
6F8A0883 8. Principle of Operation The operating principle of the electromagnetic flowmeter is based on Faraday's Law of electromagnetic induction and it is designed to measure the volumetric flow rate of fluid. An insulated pipe of diameter D is placed vertically to the direction of a magnetic field with flux density B (see Figure 8.1).
6F8A0883 9. Specifications The flowmeter specifications and the type specification code used when ordering the flowmeter are described in this chapter. 9.1 Specifications Meter size: 1/2", 1", 1 1/4", 1 1/2", 2", 2 1/2", 3", 4", 5", 6", 8", 10", 12", 14", 16", 18", 20" and 24" (15, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500 and 600 mm) Measuring range: 0 –1.0 ft/s to 0 – 32.8 ft/s (0 – 0.3 m/s to 0 –10 m/s). 0 – 0.3 ft/s to 0 – 1.0 ft/s (0 – 0.1 m/s to 0 – 0.
6F8A0883 Connection flange standard: See Table 9.2 Type Specification Code.
6F8A0883 Calibration range : It calibration by standard Range shown in the table below when Range is not specified. It calibration when there is specification by flowing quantity Range in which the customer is specified. Is this specification Range flowing quantity of Figure 9.1. Please confirm becoming in the upper bound value from the flow velocity chart. Standard Flow range Flow rate (m3/h) Flow velocity (m/s) Meter size 15 mm 1/2” 2 3.144 25mm 1” 6 3.395 32mm 1 1/4” 10 3.
6F8A0883 To select the meter size: See Figure 9.2 and find meter sizes within the velocity of 0.1 to 10 m/s for a specified full-scale (measuring range high limit) flow. Select one that has its full-scale velocity between 1 and 3 m/s. Make sure the full-scale flow rate used for the final planning stage stays within 10 m/s in terms of flow velocity. Flow velocity (m/s) 32 100 40 65 25 50 80 15 10 流 速 (m/s) 300 250 200 150 350 400 450 mm 1 0.3 0.
6F8A0883 US Unit Flow volume Meter size 1/2 inch 1 inch 1 1/4 inch 1 1/2 inch 2 inch 2 1/2 inch 3 inch 4 inch 5 inch 6 inch 8 inch 10 inch 12 inch 14 inch 16 inch 18 inch 20 inch 24 inch 0.328ft/s 0.2801 gal/min 0.7781 gal/min 1.275 gal/min 1.992 gal/min 3.112 gal/min 5.260 gal/min 7.967 gal/min 12.45 gal/min 19.45 gal/min 28.01 gal/min 49.80 gal/min 77.81 gal/min 112.0 gal/min 152.5 gal/min 199.2 gal/min 252.1 gal/min - 0.98ft/s 0.8403 gal/min 2.334 gal/min 3.824 gal/min 5.975 gal/min 9.337 gal/min 15.
6F8A0883 9.
6F8A0883 10. Outline Dimensions 10.1 Outline dimensions of GF630/LF600F and GF630/LF610F (1) Meter size of 1/2 inch to 6 inch (15mm to 150mm) Integral (1) Meter size of 1/2 inch to 8 inch (15mm to 200mm) Meter Size L1±6 (mm) L2±5 (mm) L3 ±5(mm) Mass Approx.
6F8A0883 (2) Meter size of 8 inch to 24 inch (200mm to 600mm) *1 Meter Size L1±6 (mm) L2±5 (mm) Grounding ring ( PTFE Lining only) Mass Approx.
6F8A0883 10.2 Outline dimensions of GF632 Separate (1) Meter size of 1/2 inch to 6 inch (15mm to 150mm) Meter Size L1±6 (mm) L2±5 (mm) L3 ±5(mm) Mass Approx.
6F8A0883 (2) Meter size of 8 inch to 24 inch (200mm to 600mm) Grounding ring ( PTFE Lining only) *1 200m m 250m m 300m m 350m m 400m m 450m m 500m m 600m m L3 ±5(mm) Mass Approx.
6F8A0883 10.3 Outline dimensions of Grounding ring Option for Polyurethan, CR and FEP *1 Material : SUS316 D1 D2 N (Number of tabs) T Meter size inch mm ANSI 150 (Unit: inch) ΦD2 T JIS 10K (Unit: mm) ΦD2 T ΦD1 N ΦD1 1/2 15 1.65 0.63 0.16 2 42 16 3 2 1 1-1/4 1-1/2 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20 24 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 2.36 2.76 3.03 3.74 4.69 5.08 5.91 7.28 8.46 10.43 13.11 15.59 17.32 19.80 21.34 23.58 27.95 1.06 1.34 1.65 2.05 2.44 3.
6F8A0883 Appendix 1 1-1 A system block diagram for GF630/LF600F and GF630/LF610F - 52 -
6F8A0883 1-2 A system block diagram for GF632 - 53 -
6F8A0883 USER'S FORM NOTES Write down the address and phone number of the distributor from which you purchased this product, the product code, SER.NO. and so on. Distributor Address Name Phone number Product code ( ) - GF SER.NO.
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