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Users’ Manual

EDI-53 Series Digital Indicator

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35

INPUT, SERIAL PORT AND POWER SUPPLY CONNECTOR WIRING

SENSOR /RS-232C CONNECTOR

Connector type Amphenol Part # 621N-12E-10-7P

(7-pin box mounting receptacle)

Pin No.

Signal

A

Excitation supply 0V

B

Excitation 5V

C

Signal input –

D

Signal input +

E

TxD

F

RxD

G

Gnd

G

A

B

C

D

E

F

Front View

Figure 1

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Summary of Contents for EDI-53P/L/I

Page 1: ...gh ingenuity USERS MANUAL ENCARDIO RITE ELECTRONICS PVT LTD A 7 Industrial Estate Talkatora Road Lucknow UP 226011 India P 91 522 2661039 42 Email geotech encardio com www encardio com International U...

Page 2: ...nomial calculation 9 4 OPERATION 10 4 1 Charging the battery 10 4 2 Turning on the indicator 10 4 3 First time use 11 4 4 Starting and stopping the Real Time Clock 11 4 5 Clearing the Setup memory 12...

Page 3: ...SERIAL INTERFACE 26 6 1 Interfacing to a Computer or a Printer 26 6 2 Serial Interface Specifications 26 6 3 9 pin to 25 pin adapter wiring 27 6 4 Connecting to a Computer 27 6 5 Connecting to a prin...

Page 4: ...information calibration coefficients for all the channels can also be printed out for verification Setting up the EDI 53 indicator is easy as all the prompts and error messages are in plain simple En...

Page 5: ...bers 0 to 9 are used to enter the numbers 0 through 9 in the data entry mode whenever the indicator is expecting a number to be entered All these keys also have other functions which may or may not be...

Page 6: ...programming the transducer calibration coefficients the engineering units symbol selection is also done through the number keys 1 through 9 These units are not marked on key tops as the units assigne...

Page 7: ...ut are more susceptible to damage from overloading and impact load than vibrating wire load cells Resistance strain gage based load cells are commonly used for monitoring load on anchor bolts struts r...

Page 8: ...red transducer output value to corresponding transducer input value in engineering units Most transducers that will be used with the EDI 53 will have a non zero output with zero input i e when the val...

Page 9: ...ation Transducers are generally so designed that their output is directly proportional to the measured parameter However this assumption is not true if a very high level of accuracy is desired At high...

Page 10: ...or very long time say for days the battery life gets reduced Whether the indicator is heavily or sparingly used the internal battery will need replacement every 3 to 5 years The battery life depends o...

Page 11: ...rs and a data memory which can store up to approximately 6700 readings Before using the EDI 53 indicator for the first time the internal data memory and setup memory has to be cleared of all existing...

Page 12: ...on there is still time Press the ESC key to exit this function If you are sure you want to proceed press the ENTER key to confirm your action The indicator gives you yet another chance to confirm your...

Page 13: ...he entry is complete For example if you wish to enter 123 5 press keys 1 2 3 5 and then press ENTER 4 8 Setting the date and time There are two slightly different methods of setting the date and time...

Page 14: ...pair of red and black leads are terminated in yellow clips These are the signal input leads Connect these two leads to the transducer signal output terminals The red lead should be connected to the mo...

Page 15: ...parameter is 0 04 and the engineering units is kPa i e kilo Pascal If the indicator fails to find any calibration coefficient associated with the channel number which you have selected i e the channel...

Page 16: ...stored first and the latest reading stored last However it may be noted that if due to some oversight you store some readings and then set the clock at an earlier date and time subsequent readings wil...

Page 17: ...he setup data Connect the printer to the indicator and turn on power The print format is optimized for printing on 80 column wide continuous stationery So load continuous stationery paper in your prin...

Page 18: ...l flash DONE and revert back to normal measurement mode The indicator sends formatted data to the printer for print out A typical example of data printout is shown below You will find that the data is...

Page 19: ...to which you have connected the indicator Select receive text file option and when the computer is ready to accept the file press the PRINT or SEND key on the indicator The operation of the PRINT and...

Page 20: ...he following data records The rest of the lines are data records with the data of each field separated by a comma delimiter The comma delimited files can contain two types of data in a record Numeric...

Page 21: ...e readings of same channel number are grouped together and arranged chronologically earliest first Below is an example of a downloaded Setup data file in comma delimited ASCII format CHNO UNITS COEF_A...

Page 22: ...r value in engineering units G is Linear Gage Factor or simply Gage Factor R0 is Initial Reading in Volts that may either be supplied by the manufacturer or determined at the time of installation Some...

Page 23: ...akes during data entry and also make sure that you have access to all required data during programming 5 2 Entering Setup data After you have filled in the Setup data entry form or have collected all...

Page 24: ...second case as 2 That completes all the information for setting up a transducer As soon as you enter the decimal places the display prompts you to enter the next channel number to setup You will noti...

Page 25: ...e channels for any reason it is much easier to use the procedure described in Clearing the setup memory described earlier in the section Operation Generally you need to erase the whole setup memory ei...

Page 26: ...if required The interface cable consists of a 7 pin circular connector for connecting to the indicator at one end and a 9 pin D shell sub miniature connector for connecting to a Personal Computer at t...

Page 27: ...er 25 pin connector pin number Signal Name 2 3 RxD 3 2 TxD 4 20 DTR 6 6 DSR 5 7 SG 7 4 RTS 8 5 CTS 1 8 CD 6 4 Connecting to a Computer Turn off power to both the computer and the indicator Plug in the...

Page 28: ...engineer in trouble shooting software problems or bugs As the product evolves over time small corrections are made to the indicator software to overcome known problems In technical terms we call it bu...

Page 29: ...B is the analogue PCB Locate the potentiometer marked SPAN Rotate the brass screw on the top of the potentiometer to get the desired reading on the display with specified input System Zero adjustment...

Page 30: ...out the logged data or transfer the logged data to a computer and run Clear data memory function to be able to reuse this memory for storing further data Err NVRAM FAILED This error message appears on...

Page 31: ...ry to operate the indicator If the indicator functions normally then most probably the NVRAM got corrupted due to a transient fault and you can Setup the indicator again and make it ready for use Howe...

Page 32: ...ull scale error of 0 1 3 5 350 x 100 EDI 53I Input 4 20 mA DC current input Input resistance 50 ohms GENERAL The following specifications are common for all versions Display LCD dot matrix alphanumeri...

Page 33: ...a bits no parity and one stop bit Data file uploaded to computer is in comma delimited ASCII text file format acceptable to most commercially available spreadsheet database and analytical software Dia...

Page 34: ...C nominal 250 mA max Dimensions 136 mm L x 67 mm W x 51 mm H Excluding power cords Weight 2 5 kg approx including internal battery but without cables Recommended Calibration Interval 1 year Note Due t...

Page 35: ...D POWER SUPPLY CONNECTOR WIRING SENSOR RS 232C CONNECTOR Connector type Amphenol Part 621N 12E 10 7P 7 pin box mounting receptacle Pin No Signal A Excitation supply 0V B Excitation supply 5V C Signal...

Page 36: ...l EDI 53 Series Digital Indicator Page 36 BATTERY CHARGER CONNECTOR Connector type Amphenol Part 621N 12E 8 3P 3 pin box mounting receptacle Pin No Signal A 7 VDC B 0 V C No connection A B C Figure 2...

Page 37: ...s through the supplied mains powered battery charger If the EDI 53 is not going to be used for more than 15 days fully charge the battery before storing the indicator Also fully charge the battery bef...

Page 38: ...Manual EDI 53 Series Digital Indicator Page 38 EDI 53 Channel Setup Data Entry Form Indicator Serial No Sheet of Ch No Tag No Transducer Type Units Initial Reading or Coeff C Gauge Factor or Coeff B C...

Page 39: ...nufacturers they differ slightly in dimensions and terminal arrangement However any VRLA battery of equivalent rating and dimensions approximately 70 mm length x 48 mm width x 102 mm case height will...

Page 40: ...the clamp over the battery holding stud in the datalogger so that the studs pass through the holes in the battery clamp For each stud first put on the plain washer followed by the spring washer and t...

Page 41: ...d by a factor of 2 to yield a full scale value of 2 V In the Volts mode the full scale tilt output from the EAN 70M would be shown as 2 0000 V by the indicator 2 3 Calculation of parameters value in e...

Page 42: ...or taking readings As the same portable tilt meter will be used for taking measurements from different tilt plates only a single channel need to be configured 2 Units Press Key 9 when prompted for Uni...

Page 43: ...output of 1V nominal at 0 5 EAN 31ELV tilt meter requires an excitation supply of 12Vdc which is supplied by the indicator 2 2 Measurement of transducer output The EDI 53 series indicator can measure...

Page 44: ...ows how the EAN 31ELV tilt sensor is connected to the EDI 53ELV indicator using the supplied six core sensor cable with optional junction box EAN 31EL JB EDI 53ELV Crocodile clip R B G Y 6 core cable...

Page 45: ...d in test certificate when prompted for IR 4 Gauge Factor Enter the value as provided in test certificate when prompted for GF 5 Coefficient X This value should be left at zero 6 Decimal Point DP Pres...

Page 46: ...ion across the potentiometer terminals and measures the output voltage between the reference terminal and the wiper of the potentiometer The ratio of the two voltages is the ratio of the total potenti...

Page 47: ...is not possible always use the same cable for taking the measurements A five wire measurement technique is required to eliminate this error 4 PREPARING SETUP DATA 1 Units Choose the appropriate symbol...

Page 48: ...ecalibration Key press 3 The following procedure should be used to check or recalibrate the EDI 53P C indicator Connect a resistor with a value between 1k ohms to 10 k ohms between the Red Red and Bla...

Page 49: ...and a measurement range of 3000 micro strain to minimize non linearity errors The indicator however is suitable for measurement of up to 5000 micro strain at a nominal gage factor of 2 3 MEASUREMENT O...

Page 50: ...he actual change in strain 3 Gauge Factor or Coefficient B Enter the value 8000 G where G is the gage factor of the strain gage to be measured as supplied by its manufacturer 4 Coefficient A This valu...

Page 51: ...indicator 2 2 Calculation of parameters value in engineering units As explained in section 3 2 above the indicator in volts mode will show the EAN 70 output at 30 degrees as 1 25 V However the value o...

Page 52: ...TA To measure the tilt meter output with EDI 53 ST at least one channel has to be setup using calibration coefficients as described below This channel can then be used to measure the output from any E...

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