You have no products on your list...
When browsing product pages on this website, you have the possibility to add products to a list - and send your list to us, thereby requesting a quotation.
You add products to the list by clicking the "GET A QUOTE" button on the individual product pages.
When you have submitted the list, we will get back to you as quickly as possible.
If you don't submit the list, it will be visible to you on the website for 7 days (we will place a so-called' cookie on your pc or tablet).
We hope you will find the functionality useful. Go to the product pages to add products to your list.
2231
Trip amplifier
- AC/DC trip amplifier
- 2 adjustable alarm limits
- Galvanically isolated 3.75 kVAC
- Front-programmable
- 3-digit LED display
- 24 VDC or universal supply
Advanced features
- The front-operated push buttons are used for programming the different standard functions.
- A password can prevent access for changing parameters.
Application
- Alarm detector in connection with measurement of AC/DC current or voltage signals.
- The unit is used where accurate setpoint setting and different alarm functions are required.
- The unit can be used as a single or dual trip amplifier.
- Used in applications where programmable parameters such as hysteresis, setpoint, reset, active relay for increasing or decreasing signal, delay and input signal need to be set.
Technical characteristics
- 3-digit display showing the input signal in %.
- Two LED indicating relay status.
- 3 pushbuttons for programming.
- Standard DC current input signals in the range 0...20 mA.
- DC voltage signals in the range 0...250 VDC.
- AC current signals up to 1 A.
- True RMS measurement of AC voltage signals in the range 0...250 VAC.
- Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.
Environmental Conditions
| Operating temperature | -20°C to +60°C |
| Calibration temperature | 20...28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP50 |
Mechanical specifications
| Dimensions (HxWxD) | 80.5 x 35.5 x 84.5 mm (D is without pins) |
| Weight DC / universally supplied | 125 g / 175 g |
Common specifications
Supply |
|
| Supply voltage | 19.2...28.8 VDC |
| Supply voltage, universal | 21.6...253 VAC, 50...60 Hz or 19.2...300 VDC |
| Internal power dissipation |
1.5 W (2231D)
2 W (2231P) |
Isolation voltage |
|
| Isolation voltage, test / working | 3.75 kVAC / 250 VAC |
| PELV/SELV | IEC 61140 |
Response time |
|
| Response time (programmable) |
0.25...60 s (DC)
0.75...60 s (AC) |
| Updating time | 100 ms |
| Accuracy | Better than 0.1% of sel. range |
| Signal dynamics, input | 16 bit |
| Effect of supply voltage change | < ±0.002% of span / %V |
| Temperature coefficient |
< ±0.01% of span /°C (DC signals)
< ±0.02% of span /°C (AC signals) |
| Linearity error |
< 0.1% of span
< ±0.35% of span 50...1000 Hz (AC sine wave signals) |
| EMC immunity influence | < ±0.5% |
Input specifications
Common input specifications |
|
| Max. offset | 50% of selected max. value |
Current input |
|
| Measurement range | 0...20 mA |
| Min. measurement range (span) | 10 mA |
| Input resistance | 50 Ω |
AC current input |
|
| Measurement range | 0...1 ARMS |
| Min. measurement range (span) | 0.5 ARMS |
| Input resistance | 1 Ω / 2 W |
Voltage input |
|
| Measurement range | 0...250 VDC |
| Min. measurement range (span) | 0.5 VDC |
| Input resistance | Nom. 5 MΩ |
AC voltage input |
|
| AC voltage input | 0...250 VRMS |
| Min. measurement range (span) | 0.5 VRMS |
| Input resistance | Nom. 5 MΩ |
Output specifications
Relay output |
|
| Hysteresis | 0...99.9% of span |
| ON and OFF delay | 0.0...99.9 s |
| Max. voltage | 250 VRMS |
| Max. current | 2 AAC |
| Max. AC power | 500 VA |
| Max. load at 24 VDC | 1 A |
Common output specifications |
|
| Updating time | 100 ms |
| Relay outputs: Setpoint setting | 0...99.9% of span |
| of span | = of the presently selected range |
Observed authority requirements
| EMC | 2014/30/EU |
| LVD | 2014/35/EU |
| EAC | TR-CU 020/2011 |