Pepperl+Fuchs HiD2844
Switch Amplifier
- 4-channel isolated barrier
- 24 V DC supply (bus powered)
- Dry contact or NAMUR inputs
- 4 passive transistor outputs
- Line fault detection (LFD)
- Up to SIL 2 acc. to IEC 61508
Item Number:
HiD2844
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- Overview
- Datasheet
- Alternative numbers
- Comments
A piezoelectric drive excites the vibrating rod of the device to its resonance frequency. If medium covers the vibrating rod, the rod's vibrating amplitude changes (the vibration is damped). The electronics of the device compare the actual amplitude with a target value and indicates whether the vibrating rod is vibrating freely or whether it is covered by medium.
| Safety Integrity Level (SIL) | SIL 2 |
| Connection | SL1: 8a(+), 7a(-); 8b(+), 7b(-); 10a(+), 9a(-); 9b(+), 10b(-) |
| Certificate | PF 11 CERT 2109 X |
| Degree of protection | IEC 60529 |
| Connection | SL1: 1a(-), 1b(-); 2a(+), 2b(+) |
| Signal level | 1-signal: (external voltage) -1 V 0-signal: blocked output (off-state current max. 50 andmicro;A, typical 5 andmicro;A) |
| IECEx approval | IECEx TUN 04.0012 |
| Connection | SL2: 5a(+), 5b(-); 1a(+), 1b(-); 3a(+), 3b(-); 7a(+), 7b(-) |
| Rated current | 15 mA at 24 V (per channel) |
| Switching point | contact open 0.2 ... 1.2 mA, contact closed 2.1 ... 6.5 mA |
| Power dissipation | 0.35 W at 24 V (per channel) |
| Mass | approx. 140 g |
| Galvanic isolation | EN 50178 |
| Output | one optocoupled transistor per channel |
| Labeling | space for labeling at the front |
| Switching frequency | < 2 kHz |
| Configuration | via DIP switches |
| Connection side | field side |
| Degree of protection | IP20 |
| Electromagnetic compatibility | NE 21:2006 For further information see system description. |
| Ambient temperature | -20 ... 60 В°C (-4 ... 140 В°F) |
| Display elements | LEDs |
| EU-Type Examination Certificate | CESI 02 ATEX 086 |
| Connection side | control side |
| Signal type | Digital Input |
| Line fault detection | breakage 0 ... 0.2 mA, short-circuit 6.5 mA ... maximum value |
| Mounting | on Termination Board |
| Dimensions | 18 x 106 x 128 mm (0.7 x 4.2 x 5 inch) |
| Output type | open collector transistor (internal fault bus) |
| Rated voltage | 30 V |
| Rated current | 50 mA |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Control elements | DIP-switch |
| Connectable sensor types | potential free contact or proximity sensor |
| Connection | SL1: 6b |
| Rated voltage | 20.4 ... 30 V DC bus powered via Termination Board |
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