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RDP Customer Document 

 
 

Technical Manual 

TRANSDUCER AMPLIFIER 

TYPE S7DC 

 

 
 
 
 
 
 

Doc. Ref CD1202AF 

 

This manual applies to units of mod status 8 ONWARDS

 

 
 

 

 

 

 

 

 

 

Affirmed by Declaration 

of Conformity

 

 

 

USA & Canada 

 

All other countries 

RDP Electrosense Inc. 

 

RDP Electronics Ltd 

2216 Pottstown Pike 

Pottstown, PA  19465 

U.S.A. 

 

Grove Street, Heath Town, 

Wolverhampton, WV10 0PY 

United Kingdom 

Tel  (610) 469-0850 

Fax  (610) 469-0852 

 

Tel: +44 (0) 1902 457512 

Fax: +44 (0) 1902 452000 

E-mail 

[email protected]

 

 

www.rdpe.com

 

 

E-mail: 

[email protected]

 

www.rdpe.com

 

 

 

 

Summary of Contents for S7DC

Page 1: ...Declaration of Conformity USA Canada All other countries RDP Electrosense Inc RDP Electronics Ltd 2216 Pottstown Pike Pottstown PA 19465 U S A Grove Street Heath Town Wolverhampton WV10 0PY United Ki...

Page 2: ...4 05 Gain Range x1 to X1250 9 4 06 Shunt Calibration 9 4 07 Bandwidth Noise Capacitor 10 4 08 4 20mA Offset Solder Link SP1 10 4 09 Relay Voltage Solder Link SP2 10 4 10 Maximum Voltage output vs Supp...

Page 3: ...ar eg 4mV input signals and can produce corresponding uni polar or bi polar voltage outputs ie 0 to 10V or 10V sensitivities and gains given in this document refer to both Current outputs 4 to 20mA ar...

Page 4: ...clare that the product described in this technical manual is manufactured by RDP Electronics Limited and performs in conformity to the following The Electromagnetic Compatibility Directive 2014 30 EU...

Page 5: ...y from possible sources of EMI e g motor solenoid relay cables etc 2 5 The transducer body should be grounded The transducer body being clamped or bolted to grounded metalwork e g on a machine usually...

Page 6: ...e output dual supply supply must be symmetrical Either the supply V or the output common 0V or both must be fully floating ie only one can be grounded Failure to do this may result in damage to the am...

Page 7: ...ion on the underside of the S7DC PCB This requires removal of the PCB from the case R22 replaces bridge arm D R23 replaces bridge arm A R24 replaces bridge arm B Note Mounting these resistors in the i...

Page 8: ...metal outer shell of the gland The bore of the gland is a tight fit onto the cable shield giving the required ground contact 3 Fit gland cap and tighten Cable Cores Trim Rubber Seal Cable Shield Doub...

Page 9: ...For 10V OUTPUT INPUT SIGNAL RANGE for 5V or 4 20mA OUTPUT 4 3 2 4 16mV 8 to 32mV 4 3 5 20mV 10 to 40mV 4 2 18 70mV 35 to 140mV 4 1 65 270mV 130 to 500mV 4 0 25 1V 0 5 to 2V 1 0 34 1 35V 0 7 to 2 7V N...

Page 10: ...e g for compressive tensile load applications SP1 may be fitted which changes the relationship to full scale input signal 2 5V or 4 20mA output i e SP1 provides a F S offset for the current output an...

Page 11: ...ontrol for zero output 5 4 Apply a precise load pressure etc to the transducer and adjust the F GAIN control for the desired output 5 5 Repeat steps 3 and 4 until repeatable readings are obtained 5 6...

Page 12: ...re or load to the transducer 7 2 1 Calculate the shunt calibration figure required from the data given on the transducer Calibration Record Sheet CRS From CRS output for 100 WmV output with shunt YmV...

Page 13: ...load change 0 100 mA Tempco 0 005 C typical Amplifier Linearity 0 02 of FS output Bandwidth 5kHz typical See Section 4 07 20Hz with filter ON Noise 10mV or 30 A p p less with filter ON typical Zero Te...

Page 14: ...itional error can occur at certain frequencies Field Strength Typical Maximum Error 10V m 5 3V m 0 5 Mech Env mental Working Temp Range 10 to 60 C For units of MOD18 onwards the temperature range is 4...

Page 15: ...gether and repeat B E Check the transducer is correctly wired F Check that SUPPLY and OUTPUT circuits are wired correctly and not simultaneously grounded if using SINGLE SUPPLY G Disconnect transducer...

Page 16: ...repairs and investigations are subject to at least the minimum charge prevailing at the date of return The type and serial number of the instrument should always be quoted together with full details o...

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