Technical data Liquiphant FTL62 HART
54 Endress+Hauser
• Sensor temperature
• Terminal current
The terminal current is the read-back current on terminal block. Visibility depends on
order options or device settings
• Terminal voltage
Visibility depends on order options or device settings
Supported functions
• Burst mode
• Additional transmitter status
• Device locking
15.2.8 Wireless HART data
• Minimum start-up voltage: 10.5 V
• Start-up current: > 3.6 mA
• Start-up time: < 8 s
• Minimum operating voltage: 10.5 V
• Multidrop current: 4 mA
15.2.9 Heartbeat Technology
Heartbeat Technology module
The software package consists of 3 modules. These three modules combined check,
evaluate and monitor device functionality and process conditions.
• Heartbeat Diagnostics
• Heartbeat Verification
• Heartbeat Monitoring
15.3 Environment
15.3.1 Ambient temperature range
The following values apply up to a process temperature of +90 °C (+194). At higher
process temperatures, the permitted ambient temperature is reduced (see diagram).
• Without LCD display: –40 to +70 °C (–40 to +158)
• With LCD display: –40 to +70 °C (–40 to +158) with limitations in optical properties,
such as display speed and contrast
Can be used without limitations: –20 to +60 °C (–4 to +140 °F)
Optionally available:
• –50 °C (–58 °F) with restricted operating life and performance
• –60 °C (–76 °F) with restricted operating life and performance,
Below –50 °C (–58 °F): devices can be permanently damaged
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