Hanna Instruments HI520 - Page 9

9 Specications
Analog outputs
2 or 4 independent outputs
0 – 22 mA configurable as:
` 0 – 20 mA
` 4 – 20 mA
` 22 mA as alarm signal
Analog output accuracy ±0.2 % f.s.
Digital
communication
• RS‑485 serial port for remote monitoring and control (Modbus)
• USB‑C port to retrieve log files and firmware upgrading
Relays
Up to 5 relays, independently configurable for process variables, Hold and Cleaning
functions
Electromechanical relay outputs
5 A – 250 Vac; 5 A – 30 Vdc (resistive load)
Fuse protected: 5 A, 250 V slow blow fuse
Alarm relay for all
measurement alarms
Electromechanical relay SPDT contact output
5 A – 250 Vac; 5 A – 30 Vdc (resistive load)
Fuse protected: 5 A, 250 V slow blow fuse
Data logging
• Interval log, up to 100 files, maximum 8600 records on each stored file.
When the maximum limit is reached, the most recent file will automatically erase
the oldest one.
• Event log, maximum 100 records.
When the maximum limit is reached, the last record overwrites the oldest one.
Power supply
100 – 240 Vac ±10 %; 50/60 Hz; 15 VA;
fuse protected (2 A, 250 V slow blow fuse)
Power consumption 15 VA
Installation category II
Enclosure* Single case ½ DIN, IP65 ingress protection
Weight Approximately 1.6 kg (3.5 lb.)
Dimensions
Width 144.0 mm (5.7”)
Height 144.0 mm (5.7”)
Depth 151.3 mm (6.0”)
Environment –20 to 50 °C (–4 to 122 °F); maximum 100 % RH non‑condensing
* For a water tight seal, tighten the four front casing screws to 13.3 lbf•in (1.5 N•m, max. 2.0 N•m), of torque.