PROFIBUS PA temperature transmitter
5450A - Expected release ultimo August 2025
- PROFIBUS PA profile 4.0
- RTD, TC, potentiometer, linear resistance and bipolar mV input
- Single or true dual inputs with sensor redundancy and drift detection
- Easy Ex i deployment with conformity to FICSO IEC 60079-27
- Accuracy from 0.04°C
- 2.5 kVAC galvanic isolation
Application
- Temperature measurement of a wide range of TC and RTD types.
- Conversion of wide span linear resistance and potentiometer inputs to PROFIBUS.
- Conversion of bipolar mV signals to PROFIBUS.
- Integration into asset management schemes.
- Critical applications requiring superior accuracy and/or sensor redundancy and drift detection.
Technical characteristics
- True dual input transmitter. High density 7-terminal design accepts the widest range of dual input combinations.
- Sensor drift detection - alerts when sensor differential exceeds user-defined limits, for maintenance optimization.
- Variable mapping for process data such as average, differential and min./max. tracking.
- Groundbreaking digital and analog signal accuracy over full input span and ambient conditions.
- Extensive sensor matching including Callendar Van Dusen and custom linearizations.
- Programmable input limits with runtime metering ensure maximum process traceability and sensor out of range protection.
- Meets NAMUR NE21, NE44, NE89 and NE107 compliant diagnostics information.
Programming
- PROFIBUS PA functions and device-specific parameters are configured via fieldbus communication and the associated DD / DTM / GSD device drivers.
Mounting / installation
- For DIN form B sensor head mounting.
- Mounting in zone 2 and zone 22 / Class I, Division 2, Groups A, B, C, D.
Data sheet & Manuals
Approvals & Certificates
ATEX certificate
- 5450A_24ATEX0007X_issue0.pdf
- Latest version
IECEx certificate
- 5450AIEC_240005X_issue0.pdf
- Latest version
Supplementary documentation
EU Declaration of Conformity
- 5450DoC_EU_100_UK.pdf
- Latest version
EMC data
- 5450_EMC_data.pdf
- Latest version
PR default configurations
- PR_default_configurations.pdf
- Latest version
Safety note
Order form
Environmental Conditions
| Operating temperature | -40°C to +80°C |
| Storage temperature | -50°C to +85°C |
| Calibration temperature | 23...25°C |
| Relative humidity | < 99% RH (non-cond.) |
| Protection degree (encl./terminal) | IP68 / IP00 |
Mechanical specifications
| Dimensions | Ø 44 x 21.45 mm |
| Center hole diameter | Ø 6.35 mm / ¼ in |
| Weight approx. | 50 g |
| Wire size | 1 x 1.5 mm2 stranded wire |
| Stripping length | 7 mm |
| Screw terminal torque | 0.4 Nm |
| Vibration | IEC 60068-2-6 |
| 2...25 Hz | ±1.6 mm |
| 25...100 Hz | ±4 g |
Common specifications
Supply |
|
| Supply voltage | 9.0...32 VDC |
| Supply voltage in FISCO installations | 9.0...17.5 VDC |
| Internal power dissipation | < 352 mW |
Isolation voltage |
|
| Isolation voltage, test / working | 2.5 kVAC / 55 VAC |
Response time |
|
| Response time | < 400 ms |
| Programmable damping | 0...60 s |
| Write protection | Jumper |
| Warm-up time | < 5 min. |
| Start-up time | < 15 s |
| Programming | PROFIBUS GSD, DD |
| Signal / noise ratio | > 60 dB |
| Long-term stability, first year / 5 years | ± 0.05% of reading / ± 0.10% of reading |
| Updating time, PROFIBUS | < 100 ms |
| Signal dynamics, input | 24 bit |
| Accuracy | See manual for details |
| EMC immunity influence | < ±0.1% of span |
| Extended EMC immunity: NAMUR NE21, A criterion, burst | < ±1% |
Input specifications
RTD input |
|
| RTD type | Pt10...10000, Ni10...10000, Cu5...1000 |
| Permissible cable resistance per wire | ≤ 50 Ω |
| Effect of sensor cable resistance (3-/4-wire) | < 0.002 Ω / Ω |
| Sensor current | < 0.15 mA |
| Sensor error detection | None, Shorted, Broken, Shorted or Broken |
TC input |
|
| Thermocouple type | B, E, J, K, L, N, R, S, T, U, W3, W5, LR |
| Cold junction compensation (CJC) | Constant, internal or external via a Pt100 or Ni100 sensor |
| Sensor error detection | None, Shorted, Broken, Shorted or Broken |
Linear resistance input |
|
| Measurement range / min. range (span) | 0 Ω...100 kΩ / 25 Ω |
| Permissible cable resistance per wire | ≤ 50 Ω |
| Sensor current | < 0.15 mA |
| Sensor error detection | None, Broken |
Potentiometer input |
|
| Potentiometer min....max. | 10 Ω...100 kΩ |
| Measurement range / min. range (span) | 0...100% / 10% |
| Permissible cable resistance per wire | ≤ 50 Ω |
| Sensor current | < 0.15 mA |
| Sensor error detection | None, Shorted, Broken, Shorted or Broken |
mV input |
|
| Measurement range |
-800...+800 mV (bipolar)
-100...1700 mV |
| Min. measurement range (span) | 2.5 mV |
| Input resistance | 10 MΩ |
| Sensor error detection | None, Broken |
Output specifications
PROFIBUS PA connection |
|
| PROFIBUS PA protocol | Profile A&B, ver. 4.0 (compatible with 3.02) |
| PROFIBUS PA protocol standard | EN 50170 vol. 2 |
| PROFIBUS PA address (at delivery) | 126 |
| PROFIBUS PA physical layer | 2 x function blocks, 1 / 2 transducer block(s) |
| PROFIBUS PA termination | 100 Ω +1 μF |
Observed authority requirements
| EMC | 2014/30/EU & UK SI 2016/1091 |
| ATEX | 2014/34/EU & UK SI 2016/1107 |
| RoHS | 2011/65/EU & UK SI 2012/3032 |
Approvals
| ATEX | DEKRA 24ATEX0007X |
| IECEx | IECEx DEK. 24.0005X |
| CSA | Pending |
| c FM us | Pending |
| INMETRO | Pending |
| NEPSI | Pending |
| EAC Ex | Pending |
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