Chapter 3 • Hydran 201C
i
Controllers
3-10
Rev. 6, March 2011
Part 17997
2.
Door-Mounted Alarm Indicators and Push-buttons
: The two illuminated push-
buttons are mounted on the cabinet door of the instrument. Each local indicator
latches on when the corresponding gas alarm relay is energized. The indicator
remains on when the alarm relay turns off and it must be cleared (or “acknowledged”)
by pressing the illuminated indicator. The indicator clears only when the corre-
sponding gas alarm relay has de-energized.
3.
Enclosure
: The H201C
i
-1 cabinet is rated Type NEMA 4X. With the standard
internal heater, the instrument operating temperature ranges from -40 to +55 °C (-40
to +131 °F).
An internal view of the H201C
i
-1 is presented in Figure 3-6 on page 3-11.
4.
Digital Display Circuit Board Cover
: This cover protects the display circuit board,
which includes the digital voltmeter and the connections of the two push-buttons.
5.
Electronic Circuit Board
: The circuit board incorporates all the electronic functions
of the H201C
i
-1: H201T
i
TDM pulse decoder, alarm relay drivers, configurable
analog output amplifiers, display signal conditioning, supervisory link supply,
communication ports and modem (optional) management, enclosure heater control,
and ac supply voltage selector. See Section C.3 on page C-3 for a simplified block
diagram of the circuit.
6.
Main Terminal Block
: The ac power supply, the analog output, the three alarm relays
(Alarm 1 = Gas High, Alarm 2 = Gas High-High, and System OK), the supervisory
link cables and the RS-485 LAN are connected to this 40-screw terminal block. For
wiring details, see Table D-11 on page D-8.
3.2.3
Description of the Circuit Board
The circuit board of the Hydran 201C
i
-1 is presented in Figure 3-7 on page 3-12.
7.
RS-232 Computer Port Connector, DB-9 Male (J10)
: This standard connector is used
to interface the H201C
i
-1 directly to a PC or to a smart modem. For wiring details,
see Table D-13 on page D-11. The J16 USB computer port (item 8 in Figure 3-7 on
page 3-12) is also available.
CAUTION
WARNING
ELECTRICAL SHOCK HAZARD. Voltage of 115 or 230 Vac is
present on several connecting screws of this terminal block.
Содержание Hydran 201i
Страница 1: ...GE Energy Services Digital Energy Hydran Instruction Manual 201i System ...
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Страница 36: ...Chapter 1 Introduction 1 10 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 72: ...Chapter 3 Hydran 201Ci Controllers 3 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 114: ...Chapter 5 Before Installation 5 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 143: ...Installation Part 17997 Rev 6 March 2011 6 29 Figure 6 9 Installing the CPU Module ...
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Страница 190: ...Chapter 9 Communications and Networking 9 14 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 216: ...Chapter 11 Operating the Hydran 201i System 11 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 236: ...Chapter 12 Troubleshooting 12 20 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 244: ...Chapter 13 Maintenance 13 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 254: ...Appendix B Mechanical Drawings B 2 Rev 6 March 2011 Part 17997 Figure B 3 1 5 In Adaptor ...
Страница 255: ...Hydran 201Ti Intelligent Transmitter Part 17997 Rev 6 March 2011 B 3 Figure B 4 1 In Adaptor ...
Страница 262: ...Appendix C Functional Block Diagrams C 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 282: ...Appendix F Default Values of the Parameters F 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 284: ...Appendix G Unit Conversions G 2 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 298: ...Appendix I Glossary I 12 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
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