SENSY COND-SGA-A Скачать руководство пользователя страница 19 | Manualshive

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COND SGA-A & SGA-D Manuel_EN Rev3.doc

Page 19 on 20

Rev: 03/08/2006

8.2.

Output options

±10V, ±5V, 0-10V, 0-5V, 0-20mA, 4-20mA

8.3.

Connections

Field screw terminals - 2.5mm² rising clamp.

8.4.

Enclosure

ABS case 160 x 80 x 55 sealed to IP65 fitted with 3 off cable glands.

8.5.

Controls

- Gain pot

- Offset pot

- Coarse gain switches

- Coarse offset switches

- Filter cut-off switches

- Output mode switch

8.6.

EMC Approvals

Emissions

BS EN 55011:1998

Immunity

BS EN 61000-4-2:1995 IEC 6100-4-2:1995

BS EN 61000-4-3:2002
BS EN 61000-4-4:2004

BS EN 61000-4-11:2004

Output shall not exceed the sum of uncertainties when subjected to an electric field of 10V/m over the
frequency range 80 to 600MHz

Safety/Low voltage

Directive 73/23/EEC as amended by 93/68/EEC

BS EN 61010-1:2001 IEC 61010-1:2001

8.7.

W A R R A N T Y

All COND SGA products from SENSY s.a. are warranted against defective material and workmanship for a

period of (3) three years from the date of dispatch. If the SENSY s.a. product you purchase appears to have a
defect in material or workmanship or fails during normal use within the period, please contact your Distributor,

who will assist you in resolving the problem. If it is necessary to return the product to SENSY s.a. please
include a note stating name, company, address, phone number and a detailed description of the problem.

Also, please indicate if it is a warranty repair. The sender is responsible for shipping charges, freight insurance
and proper packaging to prevent breakage in transit. SENSY s.a. warranty does not apply to defects resulting

from action of the buyer such as mishandling, improper interfacing, operation outside of design limits, improper
repair or unauthorised modification. No other warranties are expressed or implied. SENSY s.a. specifically

disclaims any implied warranties of merchantability or fitness for a specific purpose. The remedies outlined
above are the buyer’s only remedies. SENSY s.a. will not be liable for direct, indirect, special, incidental or

consequential damages whether based on the contract, tort or other legal theory. Any corrective maintenance
required after the warranty period should be performed by SENSY s.a. approved personnel only.

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Содержание COND-SGA-A

Страница 1: ...9 3 4 2 Example A strain gauge has a sensitivity of 2 809 mV V 10 3 5 Shunt Calibration Switch SW1 8 10 3 6 Zero Offset Setting Switch SW2 10 3 6 1 Example An installation has a tare of 15 kg with a 200kg strain gauge which gives an output of 6 37mV V at 10V excitation 11 4 CALIBRATION 11 4 1 Output 11 4 2 Zero Offset 11 4 3 Sensitivity 11 4 4 Calibration Connections using mV Source 12 5 TROUBLESH...

Страница 2: ...f vibration agitation and electrically noisy environment The on board low pass filter can be switched in and adjusted from 1Hz to 5kHz using a series of DIP switches A wide range of proportional output options for currents and voltages can be configured by DIP switch settings Both the AC and DC versions are based on a common board and are mounted in an IP65 NEMA 4X ABS case 2 INSTALLING THE COND S...

Страница 3: ...he waterproof entry and strain relief will seal to a higher rating than the enclosure Cable diameter should be between 4mm 0 16 and 7mm 0 27 2 3 Cabling 2 3 1 Power Connection Two power supply options are available COND SGA A 220 230VAC 50 60Hz 110 120VAC 50 60Hz 5W Max COND SGA A COND SGA D 18 24V DC 5W approx 150mA fully loaded NOTE The COND COND SGA A can be powered from AC or DC sources whiche...

Страница 4: ... Individually shielded twisted multipair cable 7 0 25mm 2 pair Tinned copper drain Individually shielded in polyester tape Diameter 4 19 mm Impedance 54 Ohms Capacitance m core to core 115 pF core to shield 203 pF UK Farnell 585 646 Individually shielded twisted multipair cable 7 0 25mm 3 pair Tinned copper drain Individually shielded in polyester tape Diameter 6 86 mm Impedance 62 Ohms Capacitanc...

Страница 5: ...y on the COND SGA and the ve end is connected to the COND SGA output The current through the load is sunk by the COND SGA towards ground 0V N B In this mode neither connection to the output load is electrically common to the load cell Select this option by fitting the two jumpers JP1 and JP2 to the outside positions See Figure 3 2 In Source mode the ve end of the load is connected to the COND SGA ...

Страница 6: ...1 0V 0V 10V 5V Table 3 1 N B Full scale output on the voltage ranges is achieved with a bi polar input Note 1 Negative inputs can be accommodated on the current output ranges by setting the Zero switch SW2 to 50 Table 3 8 and setting SW1 to twice the required mV V setting Table 3 6 3 1 2 Switch 4 Analogue Output and Excitation Voltage Options SW4 SW4 1 2 3 4 5 6 7 8 10V 0 0 0 X X 1 Filter in 1 Fil...

Страница 7: ...h can be switched in to improve the performance and output signal quality in electrically noisy environments It can also be used to reduce the effects of high frequency fluctuations in the load or applied force to the load cell The cut off frequency of the filter is set by the DIP switch SW3 as illustrated in the table below 3 2 1 Switch 3 SW3 1 2 3 4 5 6 7 8 1Hz 0 0 0 0 0 0 1 1 5Hz 1 0 0 0 0 1 1 ...

Страница 8: ...6 must be ON and SW4 7 must be OFF SW3 1 2 3 4 5 6 7 8 50Hz 1 1 1 1 1 1 1 1 Table 3 5 3 3 Output Current Mode and Input Filter Settings Jumpers JP1 JP2 JP3 Refer to Figure 2 4 for details of wiring connections to J1 Figure 3 2 3 4 Span Gain Setting Switch 1 Ranges 1 to 60 from 0 06 mV V to 30 30 mV V ON 1 OFF 0 SW1 8 switches on the shunt cal function see Table 3 8 SW3 ...

Страница 9: ...COND SGA A SGA D Manuel_EN Rev3 doc Page 9 on 20 Rev 03 08 2006 3 4 1 SW1 Table 3 6 ...

Страница 10: ...associated wiring SW1 1 2 3 4 5 6 7 8 Shunt Cal ON x x x x x x x 1 Shunt Cal OFF x x x x x x x 0 Table 1 8 The 120k resistor can be taken out of circuit and replaced by a user defined leaded component by carefully cutting the fine link as shown in Figure 3 3 Use the right hand pad and either of the left hand pads to fit the new component The surface mount resistor can be reinstated by re connectin...

Страница 11: ...aving selected the polarity and the offset nearest to that required with the switches use the fine potentiometer P2 to achieve the final setting 4 3 Sensitivity Select the sensitivity as detailed in Chapter 3 Table 3 6 by means of SW1 Switches 1 4 of SW1 provide fine setting of the COND SGA sensitivity while switches 5 7 give coarse control This arrangement allows the COND SGA to cover a wide rang...

Страница 12: ...n conditions weight force or mV V this may be zero if required and note the analogue output having ensured that the SW1 settings are correct for the transducer sensitivity as step 1 above 3 Apply the known high calibration conditions for optimum accuracy this should be at least 75 of full load and note the analogue output 4 Use the fine trim control P1 to obtain the required change in Volts or mA ...

Страница 13: ...s not trapped in terminal cable break etc d Check the sensor is connected typically reading 350 Ohm across Strain Excite and and also Strain Input and of J2 with the power off e Check the Excitation voltage J2 is at 10V DC 5 1 1 For voltage output a Check V out and V out terminals are wired b Check the load is connected and is not open or short circuited c Check SW4 settings are correct for Voltag...

Страница 14: ...t is present but higher or lower in span or zero than expected a Check the installation for problems and repair where necessary b Poor termination c High resistance on cable leads d Low insulation impedance e Proximity to High Voltage Equipment Transformers Contactors Motors etc 5 4 2 Noisy Environment a Check if the source can be found and remove noise b Check the cable screening and ensure it is...

Страница 15: ... Manual The settings of the switches and links on the COND SGA card The calibration figures for the attached sensors The instrument loop to which the output is connected A record of the normal output if applicable A maintenance record of the COND SGA A contact phone number from the supplier for assistance 7 GLOSSARY AWG American Wire Gauge Background Noise The total noise floor from all sources of...

Страница 16: ...bration cycle Load The electrical demand of a process expressed as power watts current amps or resistance ohms Load Impedance The impedance presented to the output terminals of a transducer by the associated external circuitry Load cell The load cell is one of a series of Strain Gauge sensors that the COND SGA input is designed to accept Torque Sensor Pressure temperature transducers Low Pass Filt...

Страница 17: ... For instance a display span of 200 F may correspond to the 16 mA span of a 4 20 mA transmitter signal Stability The quality of an instrument or sensor to maintain a consistent output when a constant input is applied Strain Gauge The strain gauge is a resistance bridge device where the bridge value alters linearly and proportionally to the force exerted on it be it temperature pressure torque or l...

Страница 18: ... 06 29 mV V Gain adjustment Pot fine adj 0 06 1 0 mV V Offset adjustment Pot fine adj 0 1 25 FR Offset adjustment Switchable coarse adj 1 25 79 FR Output load Voltage output 2 mA Output load Current output 0 500 Ohms Bandwidth No filter and 2mV V DC 6 kHz Filter cut off Switchable ranges 1 5000 Hz Zero temperature coefficient 2 5mV V 0 002 0 009 ºC 2 5mV V FR Span temperature coefficient 0 007 0 0...

Страница 19: ...ears to have a defect in material or workmanship or fails during normal use within the period please contact your Distributor who will assist you in resolving the problem If it is necessary to return the product to SENSY s a please include a note stating name company address phone number and a detailed description of the problem Also please indicate if it is a warranty repair The sender is respons...

Страница 20: ...COND SGA A SGA D Manuel_EN Rev3 doc Page 20 on 20 Rev 03 08 2006 8 8 Connection Details Figure 8 1 ...

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