RDP DCTH500C LVDT with captive guided core and extension rod, range ±12.5mm, 4-20mA output.
 | Order Code: | DCTH500C-TM0321A |
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Print this page |  | Download PDF file | | | | | Packaging: | 1 | | Min. Order: | 0 | | Supplier: | RDP Electronics Ltd |  |
You are not logged in. Please Login or register to view prices and order online. Description: The popular and versatile RDP DCTH series is available with an unguided core, captive guided core or spring loaded core.
The series features are:
- High cycle life
- Stainless Steel case and extension rod
- High resolution
- Voltage or 4-20mA, according to order code.
- Powered ±15 to 30Vdc or a floating single ended supply.
- option -TM0321A provides moisture sealing for the electronics. Recommended for most NZ applications.
With inbuilt DC electronics this series is very easy to apply with an external DC power supply.
Accessories expand the range of applications making this one of the most versatile general purpose DC LVDT's available.
| PRODUCT SPECIFICATIONS | | V output | Supply voltage (dual) | ±12V to ±20V dc, 30mA |
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| Supply voltage (single, must be floating) | 24V to 40V dc, 30mA | | Change in output for change in supply | 5mV/V | | Output load | 10kOhms | | Output ripple | 30mV (peak-to-peak) | | Electrical output bandwidth | 200Hz | | Output impedance | 2 Ohms | | Operating temperature range | -40°C to 80°C | | 4-20mA output (>=±12.5mm) | Supply voltage | 12V to 36V dc |
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| Max loop resistance | (Supply voltage-11) x 50Ω | | Output ripple | 50uA (peak-to-peak) | | Electrical output bandwidth | 200Hz | | Operating temperature range | -10°C to 70°C | | Both outputs | Temperature coefficient (zero) | ±0.01% F.S. /°C (typical) |
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| Temperature coefficient (span) | ±0.03% F.S. /°C (typical) | | Electrical termination | 2m (integral cable). Longer cable available to order. |
| ELECTRICAL OUTPUT DETAILS | (outputs 1 and 2 selected using different electrical connections) |
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| Option code | Electrical Connections | Note | - position | 0 | + position |
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| Standard |  Connection details (PDF) | Output 1 | 0V | 5V | 10V (+0% - 5%) | | Standard | Output 2 | -5V (+0% - 5%) | 0V | +5V (+0% - 5%) | | TM0627 |  Connection details (PDF) | Output 1 | 10V (+0% - 5%) | 5V | 0V | | TM0627 | Output 2 | +5V (+0% - 5%) | 0V | -5V (+0% - 5%) | | TM0321A | Connection details (PDF) | >=±12.5mm | 4mA | 12mA | 20mA | | TM0321B | >=±12.5mm | 20mA | 12mA | 4mA |
| UNGUIDED CORE VERSION. |
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 | On an unguided LVDT, the armature assembly is a separate component, to make a measurement the user must guide the armature inside the body without touching the sides.
Unguided position measurement transducers are appropriate where external guidance is available, enabling truly non-contact operation. | | DCTH100 to DCTH400 |
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 | D1 = 20.6mm | | ID = 2.54mm | | D3 = 2.0mm | | D4 = 2.0mm | | TF = M3x0.5 | | | |
| DCTH500 to DCTH8000 |
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 | A = 9mm | | D1 = 20.6mm | | ID = 6.8mm | | D3 = 4.75mm | | D4 = 5.97mm | | TF = M5x0.8 | | | |
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| Type | Range | Linearity error (% F.S.) | L | X | Total weight | Armature weight | TF | Over-Travel
Inward Overtravel |
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| DCTH100 | ±2.5mm | <±0.5/±0.25/±0.1 | 64mm | 33mm | 74g | 1.4g | 18mm | 11.6mm | | DCTH200 | ±5.0mm | <±0.5/±0.25/±0.1 | 64mm | 33mm | 74g | 1.8g | 18mm | 9.0mm | | DCTH300 | ±7.5mm | <±0.5/±0.25/±0.1 | 64mm | 33mm | 74g | 1.8g | 18mm | 6.5mm | | DCTH400 | ±10mm | <±0.5/±0.25 | 64mm | 33mm | 74g | 1.9g | 18mm | 3.9mm | | DCTH500 | ±12.5mm | <±0.5/±0.25/±0.1 | 175mm | 43mm | 213g | 17g | 15mm | 16mm | | DCTH1000 | ±25mm | <±0.5/±0.25/±0.1 | 203mm | 69mm | 270g | 23g | 15mm | 22mm | | DCTH2000 | ±50mm | <±0.5/±0.25/±0.1 | 317mm | 81mm | 369g | 37g | 15mm | 16mm | | DCTH3000 | ±75mm | <±0.5/±0.25/±0.1 | 430mm | 119mm | 497g | 55g | 15mm | 29mm | | DCTH4000 | ±100mm | <±0.5/±0.25/±0.1 | 475mm | 132mm | 625g | 71g | 15mm | 16mm | | DCTH6000 | ±150mm | <±0.5/±0.25 | 666mm | 183mm | 852g | 100g | 15mm | 16mm | | DCTH8000 | ±200mm | <±0.5/±0.25 | 856mm | 259mm | 1.3kg | 140g | 29mm | 27mm |
| CAPTIVE GUIDED CORE |
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 | An RDP captive guided displacement transducer incorporates bearings to guide the armature inside the measurement sensor.
Captive LVDTs are recommended for position measurement applications where guidance may be poor and end bearings may be required. | | DCTH500C to DCTH18500C |
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 | A = 23.0mm | | D1 = 20.6mm | | TR = M5x0.8 / 11mm | | TF = M5x0.8 | | | |
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| Type | Range | Linearity error(% F.S.) | L | X | D3 | Total weight | TF | Over-Travel |
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| Inward over-travel | Outward over-travel |
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| DCTH500C | ±12.5mm | <±0.5/±0.25/±0.1 | 194mm | 38mm | 4.75mm | 340g | 15mm | 10mm | 12mm | | DCTH1000C | ±25mm | <±0.5/±0.25/±0.1 | 222mm | 63mm | 4.75mm | 398g | 15mm | 13mm | 10mm | | DCTH2000C | ±50.0mm | <±0.5/±0.25/±0.1 | 336mm | 76mm | 4.75mm | 511g | 15mm | 10mm | 14mm | | DCTH3000C | ±75mm | <±0.5/±0.25/±0.1 | 448mm | 114mm | 4.75mm | 625g | 15mm | 24mm | 15mm | | DCTH4000C | ±100mm | <±0.5/±0.25/±0.1 | 494mm | 127mm | 4.75mm | 767g | 15mm | 8mm | 14mm | | DCTH6000C | ±150mm | <±0.5/±0.25 | 684mm | 178mm | 4.75mm | 1.0kg | 15mm | 12mm | 17mm | | DCTH8000C | ±200mm | <±0.5/±0.25 | 875mm | 254mm | 4.75mm | 1.4kg | 32mm | 22mm | 25mm | | DCTH10000C | ±250mm | <±0.5/±0.25 | 1067mm | 305mm | 4.75mm | 1.7kg | 27mm | 34mm | 35mm | | DCTH15000C | ±375mm | <±0.5 | 1473mm | 406mm | 4.75mm | 2.2kg | 19mm | 13mm | 13mm | | DCTH18500C | ±470mm | <±0.5 | 1740mm | 508mm | 6.00mm | 2.6kg | 27mm | 5mm | 33mm |
| SPRING RETURN VERSION |
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 | A spring displacement transducer has bearings to guide the armature inside the measurement sensor and a spring which pushes the armature to the fully out position.
Spring return LVDTs are appropriate where it is not possible to connect the transducer armature to the moving component being measured. | | DCTH100AG to DCTH400AG |
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 | D1 = 20.6mm | | D2 = 8.0mm | | D3 = 4.0mm | | L2 = 36mm | | | |
| DCTH500A to DCTH3000A |
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 | A = 9mm | | D1 = 20.6mm | | D3 = 4.75mm | | | |
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| Type | Range | Linearity error (% F.S.) | L | X | Total weight | Spring force (nom) | Over-Travel |
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| Spring force at X | Spring rate | Inward over-travel | Outward over-travel |
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| DCTH100AG | ±2.5mm | <±0.5/±0.25/±0.1 | 64mm | 12mm | 83g | 1.0N | 0.9N/cm | 2.2mm | 1.3mm | | DCTH200AG | ±5mm | <±0.5/±0.25/±0.1 | 64mm | 13mm | 83g | 1.0N | 0.8N/cm | 0.3mm | 1.3mm | | DCTH300AG | ±7.5mm | <±0.5/±0.25/±0.1 | 64mm | 18mm | 83g | 1.5N | 0.6N/cm | 1.4mm | 1.3mm | | DCTH400AG | ±10mm | <±0.5/±0.25 | 64mm | 22mm | 83g | 1.8N | 0.8N/cm | 1.3mm | 1.3mm | | DCTH500A | ±12.5mm | <±0.5/±0.25/±0.1 | 182mm | 38mm | 227g | 1.3N | 0.2N/cm | 1.0mm | 13mm | | DCTH1000A | ±25mm | <±0.5/±0.25/±0.1 | 210mm | 63mm | 284g | 2.0N | 0.3N/cm | 3.0mm | 10mm | | DCTH2000A | ±50mm | <±0.5/±0.25/±0.1 | 324mm | 75mm | 398g | 1.8N | 0.2N/cm | 8mm | 14mm | | DCTH3000A | ±75mm | <±0.5/±0.25/±0.1 | 436mm | 114mm | 511g | 6.0N | 0.4N/cm | 15mm | 15mm |
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