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Table of Contents
Related Manuals for Solartron Metrology OD4
Summary of Contents for Solartron Metrology OD4
- Page 1 Conditioning Module PRODUCT NAME Product Type user manual user manual...
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Page 2: Table Of Contents
Introduction ....Using an EMC Cable Gland ..OD4 Mk2 Enhancements ..Setting up the Transducer and OD4 . -
Page 3: Safety Information
2.0: Safety Information Terms in this Manual WARNINGS: WARNING statements identify conditions Do not operate in an explosive atmosphere or practices that could result in personal injury To avoid explosion, do not operate this or loss of life. equipment in an explosive atmosphere. CAUTION statements identify conditions Safety Critical Environments or practices that could result in damage to the... - Page 4 2.0: Safety Information CAUTION: contacting them against a metal part of the Electrostatic Discharge equipment into which the conditioning electronics is being installed. This equipment is susceptible to ESD (Electrostatic • During setting up of the conditioning electronics, Discharge) when being installed or adjusted, or make link configuration changes with the power whenever the case cover is removed.
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Page 5: Introduction
• Half-Bridge transducers can now be accommodated with simple plug wiring 3.1: OD4 MK2 Enhancements changes.* The OD4 MK2 has been designed as a form, fit and function replacement for the original OD4, but with * For half-bridge only variant see section 6.0. several enhancements. -
Page 6: Installation
4.0: Installation 4.1: Mounting This earth connection is not a safety earth, but The OD4 may be mounted in a variety of ways and is part of the overall electrical screening scheme. in any attitude. Ensure that there is enough space for the cover to be removed to allow for internal adjustments. -
Page 7: Operational Environment
OD4 case equipment likely to produce high levels of electrical at cable entry point. The case of the OD4 should be interference, such as welders or machine tools. connected to a local ground. An EMC cable gland is recommended. -
Page 8: Electrical Connections
This helps to reduce For best performance in electrically noisy interference between power supply wires and the environments, the case of the OD4 should be more sensitive parts of the circuitry. connected to a local earth. This can be achieved via the mounting bracket. -
Page 9: Connecting The Transducer
4.0: Installation (continued) 4.4: Connecting the Transducer Transducers fitted with a 5-pin DIN plug are simply screwed into the case mounted socket. Transducers S ta n d a rd L V D T G a u g in g P ro b e P lu g C o n n e c tio n s not fitted with a plug should be wired to the plug B la ck supplied. - Page 10 4.0: Installation (continued) Half-Bridge Electrical Connections S ta n d a rd H a lf-B rid g e G a u g in g P ro b e P lu g C o n n e c tio n s Red and Blue Energising B la ck...
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Page 11: Connecting The Power Supply
10-30 V. A fully regulated supply is not required, V out +V E but the voltage at the input to the OD4 must remain V oltage within specification. Ideally, the 0 V at the power supply should not be connected to earth or the chassis, as this would result in ground loops being The signal 0V should always be used as reference. -
Page 12: Current Connections
The total loop resistance (resistance of measuring equipment and wiring) must not exceed specification. Note: The OD4 is not loop-powered, so a power supply must not be used in-line with the current output. 4.0: Installation (continued) Section 0 Part No. -
Page 13: Using An Emc Cable Gland
- Push cable into gland body, followed by the plastic To ensure the cable screen is properly connected to insert (ensure anti-rotation slots engage), sealing the OD4 case, an EMC cable gland should be used. ring and dome nut. This is supplied as an optional extra. The diagrams - Ensure all components are properly seated before below assume a single 4-way cable is being used. -
Page 14: Setting Up The Transducer And Od4
5.0: Setting up the Transducer and OD4 The OD4 may be set-up with output signals CAUTION: anywhere within a ±10 VDC or ±20 mA range. During installation and adjustment, the Typical outputs are ±10 VDC, ±5 VDC, 0-10 VDC top of the enclosure has to be removed and 4-20 mA. -
Page 15: Option Links Explained
5.0: Setting up the Transducer and OD4 (continued) 5.1: Option Links - Explained The table below and subsequent diagrams explain the link functions and show the factory setting. Link Description Options Standard Setting Course Gain Sets the basic gain 1 link on Positron 1 to 6... -
Page 16: Basic Procedure
5.0: Setting up the Transducer and OD4 (continued) 5.2: Basic Procedure For a bi-polar output i.e. ±10 VDC or ±20 mA, To set-up the OD4, some basic steps should follow steps 1 to 3. For a uni-polar output i.e. be followed. - Page 17 (O N ) 1 2 3 4 5 6 (7 ) STEP 2 - Align OD4 Null and Transducer Null Any electrical offset in the OD4 is removed. The (O F F ) transducer position is adjusted so that transducer and OD4 nulls are aligned.
- Page 18 5.0: Setting up the Transducer and OD4 (continued) 5.2: Basic Procedure (continued) STEP 3 - Setting Bi-Polar Full-scale Output Null the transducer. 1. Move the transducer to the position where 1. Replace the Gain link to the original position. maximum OD4 output is required.
- Page 19 1. Move the transducer to the null position. STEP 5 - Final Checks OD4 output will be 0 V or 0 mA. Ensure that the calibration is correct by moving the 2. Apply offset using the +VE, -VE, 5 V and 10 V...
- Page 20 5.0: Setting up the Transducer and OD4 (continued) 5.3: Transducer Sensitivity and the X2, X4, To get the transducer Full Range Output, multiply DIV2 Link all three together. The OD4 compensates for changes in primary Example: AX/1.0 sensitivity is 210 mV/V/mm signal amplitude by producing an internal error AX/1.0 range is ±1 mm...
- Page 21 6.0: Half-Bridge only Variant This is a half-bridge optimised variant of the 6.2: Setting up the Half-Bridge Transducer standard product. The excitation frequency is The setting up procedure is the same as LVDT higher (see specification) and the transducer transducers. See section 5. The sensitivity of input connector is wired to accept half-bridge half-bridge transducers is generally lower than transducers with standard connections.
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Page 22: Half-Bridge Version
7.0: Specifications 7.1: Electrical Parameter Value Comments Power Supply Typical Voltage / Current 24 VDC at 55 mA Voltage Range 10 to 30 VDC Current Range 140 mA at 10 V to 50 mA at 30 V Transducer Excitation Energising Voltage 3 Vrms nominal see note 1 Energising Frequency... -
Page 23: Electrical
7.0: Specifications (continued) 7.1: Electrical (continued) Parameter Value Comments Signal Output Output Voltage Range up to ±10 VDC into 1 kΩ see notes 3 and 4 Output Residual Noise <1 mVrms Output Current up to ±20 mA into 150 Ω load see note 5 Output Offset Coarse ±5 VDC (approx 10 mA) fixed link selectable ±10 VDC (approx 20 mA) fixed link selectable Fine ±2.8 VDC (approx 5.6 mA) -
Page 24: Mechanical And Connections
7.0: Specifications (continued) 7.2: Mechanical and Connections Parameter Value Comments Transducer 5-pin circular DIN Power Supply Internal Terminal Block Output Signal Internal Terminal Block Enclosure - Size 120 x 65 x 40 mm Excluding connectors Weight 300 g (0.66 lbs) approx. Material of Case Die-Cast Zinc Alloy (painted) 7.3: Environmental Parameter... -
Page 25: Notes
ESD handling precautions for electronic equipment should be followed. 2. The way in which the OD4 functions means a special configuration must be used for 7. The OD4 complies with the toughest electrical transducers outside of the standard range.
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