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RDP C
D
USTOMER
OCUMENT
Technical Manual
TRANSDUCER AMPLIFIER
TYPE S7TW
Doc. Ref CD1210Z
This manual applies to units of mod status 13 ONWARDS
Affirmed by Declaration
of Conformity
USA & Canada
All other countries
RDP Electrosense Inc.
RDP Electronics Ltd
2216 Pottstown Pike
Grove Street, Heath Town,
Pottstown, PA 19465
Wolverhampton, WV10 0PY
U.S.A.
United Kingdom
Tel (610) 469-0850
Tel: +44 (0) 1902 457512
Fax (610) 469-0852
Fax: +44 (0) 1902 452000
E-mail
info@rdpe.com
E-mail:
sales@rdpe.com
www.rdpe.com
www.rdpe.com
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Related Manuals for RDP Group S7TW
Summary of Contents for RDP Group S7TW
- Page 1 RDP C USTOMER OCUMENT Technical Manual TRANSDUCER AMPLIFIER TYPE S7TW Doc. Ref CD1210Z This manual applies to units of mod status 13 ONWARDS Affirmed by Declaration of Conformity USA & Canada All other countries RDP Electrosense Inc. RDP Electronics Ltd...
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Page 2: Table Of Contents
4.2 Offset Stroke Applications ................... 10 SPECIFICATION ...................... 11 WARRANTY AND SERVICE ..................12 Index of Figures Fig. 1 General view of S7TW ..................5 Fig. 2 Connection for LVDT Transducers ..............6 Fig. 3 Connection Schematic ..................6 Fig. 4... - Page 3 The two-wire supply/output system allows use with long cables from the supply/monitor with a wide range of supply voltage and high noise immunity. In order to meet the primary impedance requirements of the S7TW, some RDP transducers are modified to TM202. Section 2.4 refers.
- Page 4 Certificate of EMC Conformity DECLARATION OF CONFORMITY RDP ELECTRONICS LTD. Grove Street Heath Town Wolverhampton 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 Electromagnetic Compatibility Directive 2014/30/EU The RoHS Directive 2011/65/EU R D Garbett...
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Page 5: Installation Instructions
Note 5 The body of the transducer and the S7TW case should be grounded. If the transducer fixing attachments to not provide a good ground, then a ground strap should be used. -
Page 6: Transducer Connections
If when connected, the phase of the amplifier output is not as required (for example, an inward moving armature causes a rising amplifier output when a falling output is required) then reversing the signal high and signal low wires will correct this. Fig. 3 Connection Schematic S7TW Case Terminal AMPLIFIER PCB Gland... -
Page 7: Tm202 On Rdp Transducers
Some RDP transducers as standard have input impedance that is too low for use with the S7TW. To correct this, a modification is available (TM202) for these transducers. The modification code will be indicated on the transducer BUT if more than one modification is applied to the transducer, the code may not be TM202. -
Page 8: Coarse Zero Switch
CONTROLS Please refer also to Fig. 1 for locations. The locations of all controls are also shown on the legend plate mounted on the PCB. Coarse Zero Switch The toggles or levers 1 to 6 of an 8-way DIL switch are used to inject varying amounts of offset into the output signal circuit. -
Page 9: Fine Span Potentiometer
(0.230/5) x 0.5 x 50=1.15V The standard excitation of the S7TW is 0.5V for mod 6 onward, as used in the calculations above. The following table shows the band of transducer full-scale output voltages appropriate to each of the 8 Gain Range Settings. For example, a transducer with a full-scale output of 1.15V would be correctly set as gain range 2. -
Page 10: Setting Up Procedure
SETTING UP PROCEDURE. Bipolar or Half-stroke Applications Connect the transducer and supply as shown in Section 2. Select the relevant gain range by setting the Coarse Span switch as shown in Section 3.4. Refer also to the transducer data to determine the input signal. - Page 11 SPECIFICATION (Note: all figures are typical values) Supply Voltage 12 to 36V dc universal polarity Output regulation 1µA/V Loop Resistance (Max) 50 (12V) to 1200 (36V). See Note 1 below (Min) See Note 2 below Output regulation 2µA/100 Excitation 0.5V rms. 5kHz sinusoidal at 4mA max. (minimum impedance of transducer = 130 ohm) Amplifier: Input Signal Range...
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Page 12: Warranty And Service
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.
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