Instruction manual

Technical Data
86 Installation and Operations Manual
11.4 Output
11.5 Auxiliary Energy
Output signal 4 to 20 mA (invertible) with HART protocol (e.g. for multidrop connection to
the 4590 Tank Side Monitor):
This version can be operated via the PC operating software FieldCare. The
device supports both point-to-point and multidrop operation. For
measurements with mm accuracy, the measured value must be transmitted via
the HART protocol in order to ensure the required accuracy.
Signal on alarm Error information can be accessed via the following interfaces:
• Local display:
• Error symbol (see page 34)
• Plain text display
• LEDs: red LED continuously on = alarm, red LED flashes = warning
• Current output
• Digital interface
• Galvanic isolation
• 500 V between
• power supply and ground
• power supply and signal
Ripple HART 47 to 125 Hz: Uss = 200 mV (at 500 )
Max. noise
HART
500 Hz to 10 kHz: Ueff = 2.2 mV (at 500 )
Electrical
connection
T12 housing with separate terminal compartment
Load HART Minimum load for HART communication: 250 
Cable entry Cable gland: 2 x M20x1.5
Cable entry: 2 x G½ or 2 x ½NPT
Supply voltage see page 27
Power
consumption
• Max. 330 mW at 16 V
• Max. 500 mW at 24 V
• Max. 600 mW at 30 V
• Max. 700 mW at 36 V
Current
consumption
Max. 21 mA (50 mA inrush current)
Power supply Integrated into the Tank Gauging system via Varec’s 4590 Tank Side Monitor
(recommended operation mode).