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HONGKONG XIEYUAN TECH CO., LIMITED
Add: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan, China
Contact: Ms. Lily
Email: lily@hkxytech.com
WhatsApp/Skype: +86 13789949182
2-wire HART 7 temperature transmitter
RTD, TC, potentiometer, linear resistance and bipolar mV input
Single input, dual input or 2 channels (2x4 terminals)
Wide ambient operating temperature of -50 to +85°C
Total accuracy from 0.014%
2.5 kVAC galvanic isolation
Full assessment to IEC61508 : 2010 for use in SIL 2/3 applications
Application
Temperature measurement of a wide range of TC and RTD types.
Conversion of wide span linear resistance and potentiometer inputs to 4...20 mA.
Conversion of bipolar mV signals to 4...20 mA.
Integration into asset management schemes.
Critical applications requiring superior accuracy and/or sensor redundancy and drift detection.
Technical characteristics
True dual input transmitter, accepts the widest range of dual input combinations.
Sensor redundancy - output automatically switches to secondary sensor in event of primary sensor failure, maintaining uptime.
Sensor drift detection - alerts when sensor differential exceeds user-defined limits, for maintenance optimization.
Dynamic variable mapping for process data in addition to the primary variable e.g. dual input features 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.
IEC 61508 : 2010 full assessment up to SIL 3 together with enhanced EMC Functional Safety testing to IEC 61236-3-1.
Meets NAMUR NE21, NE43, NE44, NE89 and NE107 compliant diagnostics information.
Mounting / installation / programming
DIN rail mounting with up to 84 inputs per meter.
Configuration via PReset using PR5909 Loop Link /HART modem, or by Asset Management tool (e.g. Pactware, AMS, HART communicator) for which all relevant DD, eDD and DTM files are available
The 6437A can be mounted in zone 2 and zone 22 / Class I, Division 2, Groups A, B, C, D.
| Environmental Conditions | |
| Operating temperature | -50°C to +85°C (standard) -40°C to +80°C (SIL) |
| Storage temperature | -50°C to +85°C |
| Calibration temperature | 23...25°C |
| Relative humidity | < 99% RH (non-cond.) |
| Protection degree | IP20 |
| Mechanical specifications | |
| Dimensions (HxWxD) | 109 x 23.5 x 104 mm |
| Weight (single input / dual input) | 150 g / 160 g |
| Weight (2 channels) | 185 g |
| Wire size | 0.13...2.08 mm2 AWG 26...14 stranded wire |
| DIN rail type | DIN EN 60715/35 mm |
| Screw terminal torque | 0.5 Nm |
| Vibration | IEC 60068-2-6 |
| 2...25 Hz | ±1.6 mm |
| 25...100 Hz | ±4 g |
| Common specifications | |
| Supply | |
| Supply voltage | 7.5*...48** VDC |
| Power dissipation, per channel | ≤ 850 mW |
| Additional min. supply voltage when using test terminals | 0.8 V |
| Min. load resistance at >37 V supply | (Vsupply – 37) / 23 mA |
| Isolation voltage | |
| Isolation voltage, test / working | 2.5 kVAC / 55 VAC |
| Response time | |
| Response time | 70 ms |
| Programmable damping | 0...60 s |
| Polarity protection | All inputs and outputs |
| Warm-up time | < 5 min. |
| Start-up time | < 2.75 s |
| Programming | Loop Link & HART |
| Write protection | Jumper or software |
| Signal / noise ratio | > 60 dB |
| Long-term stability, better than | ±0.05% of span / year (±0.18% of span / 5 years) |
| Signal dynamics, input | 24 bit |
| Signal dynamics, output | 18 bit |
| Effect of supply voltage change | < 0.005% of span / VDC |
| Accuracy | See manual for details |
| EMC immunity influence | < ±0.1% of span |
| Extended EMC immunity: NAMUR NE21, A criterion, burst | < ±1% |