Dinel IRU–420 Isolating Repeater are designed for supply intrinsically safe level meters in explosive areas and for the conversion of input signal 0/4 ÷ 20 mA to an output signal. Galvanic separation of current signal from explosive area to non-explosive area. The housing of units are made by polycarbonate and ready for mounting on DIN rail 35 mm. Is manufactured in variants for 24 V DC or 230 V AC.
Dinel IRU–420 Isolating Repeater Features
- Universal intrinsically safe isolating repeater of current signals 0/4 ÷ 20 mA with option voltage output 0 ÷ 10V
- For supply sensors with output 0/4 ÷ 20 mA in the explosive area
- Galvanic separation input and output signals
- Option bidirectional transmission of communication signal HART®
- Installation on DIN rail 35 mm
- Variants for 24 V DC or 230 V AC
Electrical Connector
The electrical connection is performed in a voltage-free state. The supply voltage (terminals 13 and 14) can be connected to mains power only via a fuse or a circuit breaker (max. 16 A)! On to terminals 5, 6 and 7 (blue terminal block, side IN) only an approved sensor with a current output of 0/4 … 20 mA may be connected, conforming to the conditions of the given hazardous area. If the sensor is connected to terminals 5 and 6, then it is also powered from these terminals.
If, however, the sensor is connected to terminals 6 and 7, an external power source must be used to power it. The output from the device is a current signal 0/4 … 20 mA or a voltage signal 0 … 10 V with working contacts 9, 10, 11 (grey terminal block, side OUT). Terminals no. 4, 8, and 12, 16 (on version IRU-420-H) are used for the connection of an external communicator HART (HHC – Hand-Held-Communicator).
Dinel IRU–420 Isolating Repeater Specifications
| IRU-420-I | IRU-420-H | IRU-420-U | |
| Input value | 0/4 … 20 mA | 0/4 … 20 mA | 0/4 … 20 mA |
| Output value | 0/4 … 20 mA | 0/4 … 20 mA | 0 … 10 V (loading max. 20 mA) |
| Bidirectional transmission communication signal HART | NO | YES | NO |
| Nominal supply voltage | |||
| variant 230 V | 60 … 230 V AC (+10 %) 50 ÷ 60 Hz, 85… 230 V DC (+10 %) | ||
| variant 24 V | 18 … 30 V AC (+10 %) 50 ÷ 60 Hz; 18 … 40 V DC (+10 %) | ||
| Nominal power demand (AC / DC) | 7 VA / 4 W | ||
| Maximum effective value of AC or DC voltage that can be connected to the terminals follow-up devices that are not intrinsically safe, without breaking the type of protection | Um = 253 V | ||
| Voltage on active input (terminals 5 a 6) | typ. 24,1 V DC (0 mA) / min. 18 V DC (20 mA) | ||
| Output auxiliary voltage (terminals 9 a 11) | 24 V DC (max. 25 mA) | ||
| Linearity | ≤ 0,05 % (4 … 20 mA) / ≤ 0,07 % (0 … 20 mA) | ≤ 0,05 % | |
| Temperature error | ≤ 0,05 % / K | ||
| Allowed short circuit time (input and output) | unlimited (short on output is indicated by off LED) | ||
| Ambient temperature | -20 °C … +60 °C | ||
| Protection class | IP 20 | ||
| Housing material | Polycarbonate | ||
| Material of terminals | CuBe | ||
| Max. conductor size | 1 x 2,5 mm2 | ||
| Isolating voltage (main terminals / input + output) | 3500 V | ||
| Isolating voltage (input / output) | 3500 V | ||
| Weight | cca 0,2 kg | ||
Download Catalog: ISOLATING REPEATER IRU-420 Dinel-Level and Flow Measurement
Ref: Dinel.cz
Another Article:
- McCROMETER Ultra Mag Electromagnetic Flow Meter
- McCROMETER SPI Mag Electromagnetic Flow Meter with Procomm Converters
- McCROMETER FPI Mag Electromagnetic Flow Meter
- Litre Meter Electromagnetic Flowmeter Range and Ultrasonic Flowmeter
- Signet 2580 FlowtraMag® Meter