Description
Application – 5531B Loop-powered LCD indicator
- The 5531B indicator is powered by the 4 to 20 mA current loop and is easily scaled to display the correct process value.
- Because it does not require separate power wiring, the 5531B is perfect for remote display of process loops.
- The 5531B can be mounted in Ex Zone 1.
Technical characteristics
- With a full measurement range of 3.6 to 23 mA, the 5531B is NAMUR NE43 compliant.
- The display can be push-button scaled to any range between -9999 to 9999, and reverse display action is possible.
- The LCD backlight can be set to half or full intensity for easy viewing in low light conditions.
- The display only requires 1.5 VDC, (75 Ω loop load), with the backlight turned off.
- The input is HART transparent.
- The front push-buttons can be disabled to prevent unauthorized adjustment.
Mounting / installation
- Once panel mounted with the included gasket, the 5531B provides IP65 ingress protection.
Environmental Conditions – 5531B Loop-powered LCD indicator
| Operating temperature | -20°C to +60°C |
| Storage temperature | -20°C to +60°C |
| Calibration temperature | 20…28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP65, from front |
Mechanical specifications
| Dimensions (HxWxD) | 48 x 96 x 120 mm |
| Cut out dimensions | 44.5 x 91.5 mm |
| Weight approx. | 200 g |
| Wire size, connector terminal 1 – 4 | 0.13…2.08 mm2 / AWG 26…14 stranded wire |
Common specifications
Supply | |
| Supply voltage | Input loop-powered |
Response time | |
| Response time (0…90%, 100…10%) | < 1 s |
| EMC immunity influence | < ±0.5% of span |
| Signal / noise ratio | > 60 dB |
| Updating time | 500 ms |
Input specifications
Current input | |
| Measurement range | 3.6…23 mA |
| Loop error detection, 4…20 mA: Low | ~ < 3 mA |
| Loop error detection, 4…20 mA: High | ~ > 24 mA |
| Input voltage drop, without backlight | < 1.5 V @ 20 mA |
| Input voltage drop, with half backlight | < 6.5 V @ 20 mA |
| Input voltage drop, with full backlight | < 10.5 V @ 20 mA |
Output specifications
Display | |
| Display readout | ± 9999 (4 digits) |
| Digit height | 16 mm |
Observed authority requirements
| EMC | 2014/30/EU |
| ATEX | 2014/34/EU |
| RoHS | 2011/65/EU |
| EAC | TR-CU 020/2011 |
| EAC Ex | TR-CU 012/2011 |
Approvals
| ATEX | KEMA 05ATEX1105X |
| IECEx | DEK 24.0002X |
| CCC | 2024322309006239 |
| EAC Ex | EAEU KZ 7500361.01.01.08756 |
