---
# System prepended metadata

title: 4-20mA current loop tester components
tags: [4-20mA current loop tester, 20S-itt2-project]

---

4-20mA current loop tester components
===

###### tags: `4-20mA current loop tester` `20S-itt2-project`

:::info
- **Location:** Room A1.19
- **Date:** 2020-01-28
- **Contact:** <nisi@ucl.dk>


:::warning

To prepare building a 4-20mA current loop tester in week 7 we need to know if we have all the neede components in stock.

From this [tutorial](https://circuitdigest.com/electronic-circuits/4-20ma-current-loop-tester-using-op-amp-as-voltage-to-current-converter "4-20mA current loop tester build") make a part list.  

Investigate if we have the needed components in the e-lab component room, if we do put them on the `Components in stock` list, if we don't put them on the `Components to order` list including a link to the cheapest part on either:


* https://dk.farnell.com
* https://dk.rs-online.com
* https://www.cypax.dk/

:::

:::danger

**Components to order**


| Quantity | Part name | Price (DKK) | Link |
| -------- | --------  | --------    | ---- |
| 12       | potentiometer 50k | 7,9kr   | https://dk.rs-online.com/web/p/potentiometre/5220697/ |
| 0     | BC556      | 0,52kr        | https://dk.rs-online.com/web/p/transistorer-bipolaere/8031131/ |
| 6     | LM358      | 2,52kr        | https://dk.rs-online.com/web/p/forstaerkere-operationsforstaerkere/1454295/ |
| 4     | 100R 5%      | 3,8kr        | https://dk.rs-online.com/web/p/hulmontering-faste-modstande/0151798/ |
| 6     | 300K 1%    | 5.93kr        | https://dk.rs-online.com/web/p/hulmontering-faste-modstande/0159010/ |
| 8     | 0.1uF 16V  | 0.2615kr   | https://www.cypax.dk/vare/06.069.0710


:::

:::success

**Components in stock**

| Quantity | Part name | Price (DKK) | Link |
| -------- | --------  | --------    | ---- |
| enough     | 100KΩ       | 0,4kr        | https://dk.rs-online.com/web/p/hulmontering-faste-modstande/2141406/ |
| many     | 1kΩ      | 0,8kr        | https://dk.rs-online.com/web/p/hulmontering-faste-modstande/0159010/ |
| 1     | LED red      | 3,4kr        | https://dk.rs-online.com/web/p/products/2285988/?tpr=1 |
| 3     | potentiometer 50k 15 turn      |    18,04kr     | https://dk.rs-online.com/web/p/trimmemodstande/2509641657/ |
| many     | 100nF/0.1uF      |    ?     | ?  |
| many     | 100pf      |    ?     | ?  |
| many     | 100pF 16V      | 0,6kr        | https://dk.rs-online.com/web/p/keramisk-enkeltlags-kondensatorer/1733602/ |
| many    | 10nF 16V     | 1,3kr        | https://dk.rs-online.com/web/p/polyesterfilm-kondensatorer/6224634/ |
| many    | BC327        |
:::





