80G Radar Level Instrument Beijing GODA Instruments Co.,Ltd.
Contents 1 Principle of measurement...........................1 2 Brief description of instrument........................2 3 Requirement of installation ..........................7 4 Electrical connection..............................12 5 Instrument commissioning..........................17 6 Structure size....................................20 7 Technical parameters..............................25 8 Product model naming.............................30 9 Application data form for level instrument ..........
1.Principle of Measurement Principle Frequency modulated continuous wave (FMCW) is adopted for radar level instrument (80G). The antenna transmits the high frequency and frequency modulated radar signal. The frequency of the radar signal linearly increases. The transmitted radar signal is reflected by dielectric to be measured and received by antenna. At the same time, the difference between the frequency of transmitted signal and that of the received signal is proportional to the measured distance.
2.Brief description of instrument GDRD81 GDRD82 Suitable for the strong corrosive liquids Vapour /Foam Liquid Suitable for the strong corrosive liquids Vapour /Foam Measurement range: 0～30m 0～30m Measurement accuracy: ±2mm ±2mm Process temperature: (-40～110)℃ (-40～150)℃ (See page 6) (-40～130)℃ Process pressure (-0.1～0.1)MPa (-0.1～4.
80G Radar Level Instrument GDRD83 Application: Liquid Suitable for the strong corrosive or Pressure resistance liquid GDRD84 Liquid Vapour /Foam Measurement range: 0～10m 0～30m Measurement accuracy: ±2mm ±2mm Process temperature: (-40～110)℃ Process pressure (-0.1～0.5)MPa (Suitable for thestrong corrosive liquid) (-0.1～4.
GDRD85 Application: GDRD87 Liquid Hygiene Solid Storage vessel/process vessel or high dust occasion Measurement range: 0～30m 0～120m Measurement accuracy: ±2mm ±5mm Process temperature: (-40～130)℃ (-40～110)℃ (-40～130)℃ Process pressure (-0.1～4.0)MPa (-40～195)℃ – Frequency: 80GHz 80GHz Signal output: (4～20)mA/HART (4～20)mA/HART RS485/MODBUS Protocol RS485/MODBUS Protocol 2-Wire(DC24V) 2-Wire(DC24V) 4-Wire(DC10.8～26.4V) 4-Wire(DC10.8～26.
80G Radar Level Instrument GDRD89 GDRD88 Application: Liquid Marine Measurement range: 0～30m 0～30m/0～70m Measurement accuracy: ±2mm ±2mm/±5mm Process temperature: (-40～110)℃ (-40～110)℃ Process pressure (-0.1～0.1)MPa (-0.1～0.1)MPa Frequency: 80GHz 80GHz Signal output: (4～20)mA/HART (4～20)mA/HART RS485/MODBUS Protocol RS485/MODBUS Protocol 2-Wire(DC24V) 2-Wire(DC24V) 4-Wire(DC10.8～26.4V) 4-Wire(DC10.8～26.
Housing A/ B / G No. Material D/ H Aluminum Alloy/Plastic/Stainless Steel 316L Features Aluminum ally/Stainless Steel 316L Single Lumen 2-Chamber K No. L Material Stainless Steel 316L (Surface machining) Features Hygiene M Pa66 Stainless Steel 316L - Marine Antenna No.
80G Radar Level Instrument 3. Requirement of installation Basic requirements When the antenna transmits the microwave pulse, it has a certain transmitting angle. There shall be noobstacles in the area radiated by the transmitted microwave beam from the lower edge of the antenna to the dielectric surface to be measured. Therefore, it is necessary to avoid the facilities in the tank during installation, for example: human ladder, limit switch, heating equipment, supports, etc.
1 Reference plane 2 Center of the vessel or symmetry axis 2 1 >400mm As for the conical vessel with flat tank top, the best installation position of instrument is the top center of the vessel, which ensures that the bottom of the container is measured.
80G Radar Level Instrument Moisture-proof As for the instrument installed in outside or wet indoor environment and cooling or heating tanks, the cable gland should be tightened and the cable at the cable entry should be bend downward for preventing moisture.
Rights and wrongs of installation position 1 2 A大约 A 1 2 1. Correct 2. Error: Instruments are installed in the arched or round top of tank, which will result in multiple echoes. So it should be avoided as much as possible during the installation. Error: instruments should not be installed above the charging material flow, in order to ensure that the dielectric surface is to be measured, rather than the charging material flow.
80G Radar Level Instrument Agitation If there are agitation in the tank, the instruments should be installed as far away from agitators as possible. Once the installation is completed, the "virtual echo learning" should be carried out while agitators are running, to eliminate the influence of fraud echo generated by mixing blades. If foam or wave is generated due to the agitation, the waveguide installation method should be adopted.
4 Electrical connection Supply voltage (4-20)mA/HART (2-Wire) Power supply and the output current signal are carried by the same two-core cable.See the technical data for the detailed range of supply voltage. A safety barrier should be placed between the power supply and instrument for the intrinsically safe version. The grounding mode of current output can be adopted for the standard instrument, while the floating current output should be adopted for the explosion-proof instrument.
80G Radar Level Instrument 4-Wire (10.8～26.
Explosion-proof connection The explosion-proof types of the product include the intrinsically safe/ intrinsically safe + dust version/intrinsic safe+ flameproof approval. The working ambient temperature is (-40-65)℃. Under normal or fault conditions, the max temperature at any part of the surface should not exceed T3 (195℃), T4 (130℃), T5 (95℃) and T6 (80℃). Explosion-proof sign: Exia ⅡC T6 Ga/Exia D 20 T80℃/Ex d ia[ia Ga] ⅡC T6 Gb.
80G Radar Level Instrument Explosion-proof area Non-explosion-proof area (4～20)mA Choose one from two COMWAY GODA LEVEL ONE Explosion-proof area Non-explosion-proof area 24V DC (4～20)mA Choose one from two COMWAY GODA LEVEL ONE Explosion-proof wiring of intrinsically safe+ flameproof approval 15
When RS485 intrinsically safe instrument is used, the communication input type isolated safety barrier should be used for power supply. NPEXA-C711 safety barrier is an associated equipment of this product, and its explosion-proof type is intrinsically safe. External dimension of NPEXA-C711 communication input type isolated safety barrier Port characteristics Between No.1, No.2 terminals and GND Between terminal 5 and terminal 6 Uo 6.5V 21V Io 68mA 165mA Po 111mW 866mW Co 17.5 μF 0.13μF Lo 5.
80G Radar Level Instrument 5 Instrument debugging Debugging method There are four debugging methods for GDRD8X 1 Display/debugging module (View Point) 2 Host computer debugging software GODAware 3 HART hand-held programmer ViewPoint is a pluggable display/debugging tool. The debugging can be done through operating with 4 buttons on ViewPoint. The language for the debugging menu is optional.
Debugging of host computer Connect to the host computer via HART 1 USB interface 2 GDRD8X 3 HART adapter used for COMWAY converter 4 250Ω 5 COMWAY converter 4 + - DC 3 二选一 2 GODA LEVEL ONE 5 COMWAY 1 Connect to the host computer via USB 1 USB interface 2 GDRD8X 3 USB interface GODA LEVEL ONE 3 1 + - DC 2 HART hand-held programmer can be used for programming of GDRD8X 3 + - DC 2 二选一 1 18 1 HART hand-held programmer 2 GDRD8X 3 250Ω
80G Radar Level Instrument 19
6 Structure size (unit: mm) A/B/G type housing Material:AL/PBT/316L 141.5 98 D/H type housing Material:AL/316L 141.5 98 96.
80G Radar Level Instrument 146.5 L type housing Material:PBT 92 M type housing Material: 316L 135.5 98 40 FBS-2 type safeTY barrier [Exia]IIC No: Um： Uo： Io： Co： Lo： No： Matching equipment: Intrinsically safe radar level instrument 104.5 Safety barrier FBS-2 Beijing GODA Instruments Co., Ltd. Note 1. Read the instruction manual before usage. 2. Installation should not be implemented in dangerous area.
GDRD81 C h H G 112( 112N P T ) 43 43 207 G 112( 112N P T ) 43 43 2 39 G3(3NPT) 83 45 252 A GDRD82 A B H h1 DN50 PN40 165 125 4- C 18 235 20 DN80 PN40 200 160 8- 18 239 24 DN100 PN40 235 190 8- 22 241 26 A B H h1 DN80 PN40 200 160 8- C 18 270 24 DN100 PN40 235 190 8- 22 272 26 DN125 PN40 270 220 8- 26 274 28 DN150 PN40 300 250 8- 26 276 30 GDRD83 22
80G Radar Level Instrument GDRD84 GDRD85 GDRD87 A B DN100 PN16 220 180 4- 18 C DN125 PN16 250 210 4- 18 10 DN150 PN16 285 240 4- 22 10 h 10 23
GDRD88 GDRD89 24
80G Radar Level Instrument 7 Technical parameters General data Housing Aluminum, plastic and stainless steel 316L Sealing between the housing Silicone rubber and housing cover Window on housing Transparent PC Grounding terminal Stainless steel Weight -GDRD81 2.2Kg (depending on the antenna and housing) -GDRD82 8.0Kg (depending on the antenna and housing) -GDRD83 1.8Kg (depending on the antenna and housing) -GDRD84 2.7Kg (depending on the antenna and housing) -GDRD85 2.
2-Wire load resistance figure Load W Conductor resistance+HART resistance +load resistance 1100 Voltage limit of non-explosion-proof instrument 500 HART load Voltage limit of explosion-proof instrument 250 0 Supply voltage 14 19 22 24 26 Feature parameters Unmeasurable area Maximum measurement 28 30 -GDRD81 -GDRD82 -GDRD83 -GDRD84 -GDRD85 -GDRD87 -GDRD88 -GDRD89 Microwave frequency Measurement interval Adjust time1) Display resolution Accuracy Temperature for storage and transport Relative
80G Radar Level Instrument GDRD81 3dB -G1½A(1½NPT) -G3A(3NPT) Accuracy GDRD82 Transmitting angle 6° 3° Refer to the following diagram 3dB -DN50 -DN80 Accuracy GDRD83 Transmitting angle 6° 3° Refer to the following diagram 3dB Transmitting angle Accuracy 6° Refer to the following diagram 27
GDRD84 3dB Transmitting angle Accuracy GDRD85 GDRD87 6° Refer to the following diagram 3dB Transmitting angle Accuracy 28 Refer to the following diagram 3dB Transmitting angle Accuracy 3° 4° Refer to the following diagram
80G Radar Level Instrument GDRD88 3dB Transmitting angle Accuracy GDRD89 Refer to the following diagram 3dB Transmitting angle Accuracy 6° 3° Refer to the following diagram 29
8. Product model naming 8.
80G Radar Level Instrument 7 Incoming line of cable M M20X1.5 N ½ NPT 8 Display/programming A Programmer C Remote display X None Note 1.
8.
80G Radar Level Instrument 7 Incoming line of cable M M20X1.5 N ½ NPT 8 Display/programming A With Programmer C With Remote display X None Note 1.
8.3 GDRD83 Product model naming GDRD831 1 2 3 4 5 6 7 Approvals P Standard (non-explosion-proof) I Intrinsically safe (Ex ia ⅡC T6 Ga) F Intrinsically safe + dust version (Ex ia D 20 T80℃) G Intrinsically safe+ flameproof approval (Ex d ia[ia Ga] ⅡCT6 Gb) ※See Note 1 2 Process pressure A (-0.1～0.5)MPa B (-0.1～4.0)MPa 3 Thread specification GA Thread G¾A GB Thread 4 ¾NPT Electronic building brick B (4-20)mA/HART 2-Wire C (4-20)mA/(22.8～26.
80G Radar Level Instrument 6 Incoming line of cable M M20X1.5 N ½ NPT 7 Display/programming A With Programmer C With Remote display X None Note 1.
8.4 GDRD84 Product model naming GDRD841 1 2 3 4 5 6 Approvals P Standard (non-explosion-proof) I Intrinsically safe (Ex ia ⅡC T6 Ga) F Intrinsically safe + dust version (Ex ia D 20 T80℃) G Intrinsically safe+ flameproof approval (Ex d ia[ia Ga] ⅡCT6 Gb) ※See Note 1 2 Installation form D 3 Swivelling Holder Electronic building brick B (4-20)mA/HART 2-Wire C (4-20)mA/(22.8～26.4) VDC/HART 4-Wire(2-Chamber) E (4-20)mA/(22.8～26.
80G Radar Level Instrument Note 1.Intrinsically safe instrument (Ex ia ⅡC T6 Ga) can only use "B, R" electronic components; "A, B, G, K, L, M" housing; Intrinsically safe + dust version instrument (Ex ia D 20 T80℃) can only use "B, R" electronic components; "A, G" housing; Intrinsically safe + flameproof approval instrument Ex d ia[ia Ga] ⅡC T6 Gb) can only use “C, E" electronic components; "D, H" housing. 2.GDRD84 Process Temperature(-40～110)℃,Process pressure(-0.1～0.1)MPa. Warning: 1.
8.5 GDRD85 Product model naming GDRD851 1 2 3 4 5 Approvals P Standard (non-explosion-proof) I Intrinsically safe (Ex ia ⅡC T6 Ga) ※See Note 1 2 Electronic building brick B (4-20)mA/HART 2-Wire R RS485/MODBUS Protocol ※See Note 1 3 Housing/protection grade K Stainless steel 316L (surface machining) /Ip67 ※See Note 1 4 Incoming line of cable M 5 M20X1.
80G Radar Level Instrument 8.
6 Incoming line of cable M M20X1.5 N ½ NPT 7 Display/programming A With Programmer C With Remote display X None Note 1.Intrinsically safe instrument (Ex ia ⅡC T6 Ga) can only use "B, R" electronic components; "A, B, G, K, L, M" housing; Intrinsically safe + dust version instrument (Ex ia D 20 T80℃) can only use "B, R" electronic components; "A, G" housing; Intrinsically safe + flameproof approval instrument Ex d ia[ia Ga] ⅡC T6 Gb) can only use “C, E" electronic components; "D, H" housing. 2.
80G Radar Level Instrument 8.7 GDRD88 Product model naming GDRD881 1 2 3 4 Approvals P Standard (non-explosion-proof) I Intrinsically safe (Ex ia ⅡC T6 Ga) ※See Note 1 2 Electronic building brick B (4-20)mA/HART 2-Wire R RS485/MODBUS Protocol ※See Note 1 3 Housing/protection grade L Plastic/IP68 ※See Note 1 5 Display/programming A No display B Remote display X None Note: GDRD88 is full protection instrument and can be installed in the forms of hanger, thread 1NPT and thread 1½NPT.
8.8 GDRD89 Product model naming GDRD891 1 2 3 4 5 6 Approvals P Standard (non-explosion-proof) I Intrinsically safe (Ex ia ⅡC T6 Ga) ※See Note 1 2 Range A 30m B 70m 3 Electronic building brick B (4-20)mA/HART 2-Wire R RS485/MODBUS Protocol ※See Note 1 4 Housing/protection grade M Stainless steel 316L ※See Note 1 5 Incoming line of cable M 6 M20X1.
80G Radar Level Instrument 9 Application Questionnaire Approvals Standard (non-explosion-proof) Intrinsically safe + dust version (Ex ia D 20 T80℃) intrinsically safe (Exia IIC T6 Ga) Intrinsically safe+ flameproof approval(Exdia [ia Ga] IIC T6 Gb) Measured Medium Name Condition Liquid ( Temperature: Min. Surface Flat Dielectric Constant Volatile gas Crystal C Norm. ° Turbulent εr<3 εr>3 Viscous) Solid（Form ° C Max.
10. Others 10.1 After-sale service information Tel:010-89759332/89753941 E-mail: Service@godacn.com Address: 2-4, Workshop No.2, Yard No.
Federal Communications Commission (FCC) Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Beijing GODA Instruments Co.,Ltd. Beijing GODA Instruments Co., Ltd. Add: 2-4, Workshop No.2, Yard No. 10, Hongfu Pioneer Park, Changping District, Beijing Tel: (010) 89759341 89759342 Fax:（010）89759327 PC: 102209 Website: www.godacn.com Email:sales@godacn.com Sales Dept Of Beijing GODA Instruments Co., Ltd. Add: Room1303, Block D, Ocean International Center, No 62 Middle Of east 4th ring, Chaoyang Dist., Beijing,100025, China Tel:（010）59648788（Ext.
