RDP DR7AC User'S & Technical Manual Download Page 12

 

 

12 

WARRANTY AND SERVICE 

 
WARRANTY. 
 
R.D.P. Electronics products are warranted against defects in materials or workmanship.  
This warranty applies for one year from the date of delivery.  We will repair or replace 
products that prove to be defective during the warranty period provided they are returned 
to R.D.P. Electronics. 
 
This warranty is in lieu of all other warranties, expressed or implied, including the implied 
warranty of fitness for a particular purpose to the original purchaser or to any other person.  
R.D.P. Electronics shall not be liable for consequential damages of any kind. 
 
If the instrument is to be returned to R.D.P. Electronics for repair under warranty, it is 
essential that the type and serial number be quoted, together with full details of any fault. 
 
SERVICE. 
 
We maintain comprehensive after-sales facilities and the instrument can, if necessary be 
returned to our factory for servicing. 
 
Equipment returned to us for servicing, other than under warranty, must be accompanied 
by an official order as all 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 of any fault and services required. 
 
IMPORTANT NOTES. 
 
1.No service work should be undertaken by the customer while the unit is under warranty 
except with the authorisation of RDP Electronics. 
 
2.If the instrument is to be returned to R.D.P. Electronics for repair, (including repair under 
warranty) it is essential that it is suitably packed and that carriage is insured and prepaid. 
R.D.P. Electronics can accept no liability whatsoever for damage sustained during transit. 
 
3.It is regretted that the above warranty only covers repairs carried out at our factory. 
Should the instrument have been incorporated into other equipment that requires our 
engineers to perform the repair on site, a charge will be made for the engineer's time to 
and from the site, plus any expenses incurred. 
 
The aforementioned provisions do not extend the original warranty period of any product 
that has been either repaired or replaced by R.D.P. Electronics. 
 

THIS WARRANTY MAY BE NULL AND VOID SHOULD 
THE CUSTOMER FAIL TO MEET OUR TERMS OF PAYMENT.

 

 
 

Summary of Contents for DR7AC

Page 1: ...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...

Page 2: ...IN 8 3 4 Coarse Zero 8 3 5 Zero Input 9 3 6 Fine Zero On front panel labelled ZERO 9 3 7 Over Range Indicator 9 3 8 Excitation Voltage 9 3 9 Excitation Frequency 9 3 10 Master Slave 9 4 0 SETTING UP P...

Page 3: ...ly Units may be master slaved in systems where carrier frequency beating is a problem The unit is housed in a DIN rail mounting thermoplastic case with recessed screw clamp terminals for all connectio...

Page 4: ...on West Midlands WV10 0PY United Kingdom We declare that the product described in this technical manual is manufactured by RDP Electronics Limited and performs in conformity to the following The Elect...

Page 5: ...oisy cables 3 Ensure cables to and from the DR7AC are routed away from any obviously powerful sources of electrical noise e g electric motor relays solenoids 4 ESD precautions should be used when work...

Page 6: ...Supply 14 Supply 15 Screen 16 N C 2 4 Internal Controls To access internal controls the front part of the DR7AC case needs to be removed To do this use a small screw driver to gently press in the cli...

Page 7: ...e i e the output rises for outward transducer movement instead of falling reverse signal high and signal low connections Fig 3b Half bridge differential inductance transducer connections In addition t...

Page 8: ...ale output voltages appropriate to each of the 8 Gain Range Settings For example a transducer with a full scale output of 2 3V would be correctly set as gain range 3 An 4 way toggle switch SW1 sets th...

Page 9: ...rmally supplied with 1V excitation This can be changed to 3V by changing J3 to B C 3 9 Excitation Frequency Fig 4 Excitation Frequency 3kHz 5kHz Factory setting If necessary excitation frequency can b...

Page 10: ...he transducer armature by a precise amount e g 5mm for a D6 05000 transducer and adjust the FINE GAIN control for the desired output e g 5V or 20mA b Relocate the transducer armature at the centre of...

Page 11: ...polation Zero Range 5V minimum Linearity 0 05 of full scale Input Resistance 130k ohm differential Zero Stability Voltage Output Current Output 0 002 of FS typical C optimum at 10V o p 0 005 of FS typ...

Page 12: ...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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