0-999,9Ω Programmable resistor decade board with step of 0,1Ω and Maximum power rating up to 10W
- The device can be adjusted to desired resistance value by 8 digital inputs (5V logic levels, maximum 24V). It is possible to use a microcontroller, such as Arduino. In the photos, you can see the product connected to National Instruments VirtualBench (not included with the product. We can send you a compatible LabVIEW application for control via PC for FREE upon request.)
- Easy mounting on DIN rail racks with integrated mounting system.
We specialize in custom electronics development. If you need a variation of this product or would like to have the programmable resistor decade board integrated in a larger device, please contact us.
Basic price: 20.000DKK excl. VAT
Ask us if you have any questions about the product.
Specifications
|
Output resistance (J1) Resistance between J1 terminals is calculated as: Rtot = V x 100R + X x 10R + Y x 1R + Z x 0,1R |
0-999,9Ω +-1% |
|---|---|
| Maximum power rating for 100R, 10R, 1R decades | 10W |
| Maximum power rating for 0,1R decade | 2W |
| Maximum current through J1 - Constant Resistance | 2,5Arms |
| Maximum current through J1. Resistance is switched | 1Arms |
| Maximum voltage between J1 terminals and GND | 230Vrms |
| Power supply J2 | 24VDC +-5%, max. 200mA |
| Control signals J3. Nominal input voltage | 5V logic level. 22kΩ pull up to 5V |
| Maximum input voltage | 24V. Iin @24V 1,7mA |
| Cooling fans start temperature (board surface) | ~70oC |
| Maximum ambient temperature | 40oC |
| Mounting | DIN rail 32/35 |
| Dimensions l x b x h(above DIN rail) | 403 x 126 x 69 mm |
The decade board should be placed with adequate space around, bearing in mind that the total power dissipation can reach 20W.
Control interface
| Address input A3 A2 A1 A0 |
Multiplier |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| A | 9 |
| B | 9 |
| C | 9 |
| D | 9 |
| E | 9 |
| F | 9 |
LEx = HI: Latch is transparent. Multiplier follows address.
LEx = LO: Multiplier is locked to address present in the moment LEx is set LO.
Board Layout
