GE Hydran 201i Instruction Manual page 203

Hydran* 201i Instruction Manual
ELECTRONIC UNIT
Hardware Microprocessor; watchdog; clock
Software Real-time operating system; menu-driven interface
Functions -
Communications User selection (one port at a time):
Display Backlit liquid crystal display (LCD); 2 lines x 16 characters
Keypad Keypad 6 keys: Enter, Up, Down, Change, Esc and End
Alarm Contacts Gas High, Gas High-High and System Fail
Analog Output Isolated 4–20 mA; 0–2,000 ppm range; isolation 2,000 Vac RMS;
MISCELLANEOUS
Enclosure Type NEMA 4X; white, cylindrical aluminum housing; 186mm
Electronic
Modules
Enclosure
Heating/Cooling
Brass Adaptor With 1.5-in male NPT threads (standard); mounting on
MA-033 Rev. 14.0, 12-Nov-18
Gas level, hourly trend and daily trend readings
- Gas level and gas trends an fail alarms
- History data logging (Short Term, Long Term, Events and
Service)
- Periodic sensor test
- Calibration, configuration and self-test
- Networking
- Remote embedded software upgrading
- Remote control via Hydran 201Ci Controller (optional
modem)
- Hydran protocol or ModBus protocol over Supervisory link
(RS-485)
USB Type B female connector for host computer
Supervisory link to connect to PC or H201Ci Controller
One NO and one NC contact (type C) per alarm
Resistive load: 3A @ 250 VAC; 3A @ 30 VDC
10 V load maximum; 500-ohm @ 20 mA
(7.3in) diameter x 180 mm (7-1/8 in)
Totally enclosed CPU and I/O electronics
300-W heating plate; convection cooling; maintain unit between
15 and 65°C (59 and 149°F)
Page 203