A06 Specification.docx

Salient Characteristics Special Order S21008

FLOOD WARNING SYSTEM

21 EA, Flood Warning System:

1. This equipment purchase is to upgrade the existing infrastructure and is the local Flood Information and Notification System.

2. Shall be designed to fit into an WSC-owned enclosure and includes DIN rail terminals for sensor connections.

a. System shall be no larger than 40.64 x 35.56 x 15.24 cm (16 x 14 x 6 in.) once assembled on backplate to fit into enclosure.

3. Shall allow interface viewing via PC or mobile device web browser and access via a Wi-Fi, cellular, or USB connection.

4. Each unit shall include one (1) Encoder; Modulator and Sensor Interface, one (1) Water Level Datalogger, and one (1) UHF Radio listed below.

Encoder, Modulator and Sensor Interface:

5. Shall provide reverse polarity protection.

6. Shall operate with 9 to 18VDC.

7. Shall provide shared serial activity for GPS, Radio, and RS-232.

8. Shall have at least one (1) RS-232 port and one (1) USB port for Micro-B.

9. Shall operate within a temperature range of -40° to at least 60°C.

10. Shall have communication rates of 1200 to 57,600 bps for RS-232 and 9600 to 460.8kbps for I/O ports, or better.

11. Shall maintain a current drain at 12VDC of not more than 1.5mA when in idle mode and 40mA in GPS Fix mode.

12. Drift shall not exceed +/- 0.17 seconds per day (without GPS sync, in a 40°C temperature change).

13. Shall have channels available for tipping bucked/switch closure count accumulator, single-ended analog input, digital for limited SDI-12 or high/low state, switched power for powering sensors, and ground at a minimum.

14. Shall have radio interfaces for TX, PTT, switched battery, ground and RCFSK modulation for 100 mV to 1000mV (+/-50 mV) at a minimum.

15. Shall provide report of time and event driven reports for battery, clock status, tipping bucket, analog input (mV or mA), digital (SDI-12 or High/Low State).

16. Shall be RoHS and CE compliant.

Water Level Datalogger:

17. Shall be a measurement and control datalogger.

18. Shall have operating temperature range from -40° to +70°C.

19. Shall have at least six (6) single-ended or three (3) differential individually configured analog inputs.

20. Shall have at least eight (8) pulse counters.

21. Shall have at least two (2) voltage excitation terminals.

22. Shall have USB Micro B and RS-232 communications ports.

23. Shall have at least one (1) Switched 12 Volt.

24. Shall have at least seven (7) terminals configurable for digital input and output including status high/low, pulse width modulation, external interrupt, and communication functions.

25. Shall have -100 mV to +2500 mV input limits.

26. Shall have analog voltage accuracy of ±0.04% of measurement + offset at 0° to 40°C and ±0.1% of measurement + offset at -40° to +70°C, does not include sensor or measurement noise.

27. Shall have 24-bit ADC.

28. Shall have 16 to 32 Vdc power requirements.

29. Shall communicate using PakBus, Modbus, DNP3, SDI-12, TCP, UDP, and other standard protocols at a minimum.

30. Shall have real-time clock accuracy of at least ±1 min. per month.

31. Shall have Ethernet, PPP, RNDIS, ICMP/Ping, Auto-IP(APIPA), IPv4, IPv6, UDP, TCP, TLS, DNS, DHCP, SLAAC, NTP, Telnet, HTTP(S), FTP(S), SMTP/TLS, and POP3/TLS internet protocols.

32. Shall have at least a 3-year warranty against defects in materials and workmanship.

33. Shall have at least 80 MB serial flash for CPU drive/programs and at least 30 MB serial flash for data storage.

34. Shall maintain a current drain at 12VDC of not more than 1.5mA when in idle mode and 5mA for 1 Hz scan with 1 analog measurement or better.

Radio:

35. Shall consist of a wireless data telemetry type radio.

36. Shall be capable of operating at 406.150 MHz UHF frequency that complies with the WSC licensed agreement with the FCC.

37. Shall have operating temperature range from -30C to at least 60C.

38. Shall have at least sixteen (16) switch selectable, channels.

39. Shall be capable of single to two frequency simplexes by using a synthesizer frequency source.

40. Shall be capable of 12.5 or 25.0 kHz channel bandwidths.

41. Shall have at least one (1) BNC female antenna connector.

42. Shall have at least one (1) 9 pin D male plug.

43. Shall run at a voltage range from 9 to 16 volts DC.

44. Transmitter shall have adjustable power output settings from 1 to 5 Watts.

45. Spurious emissions shall be no more than - 70 dB.

46. Shall have FM modulation with hum and noise no more than -40 dB at 12.5 kHz and 25 kHz bandwidth.

47. Shall be capable of 100 microvolts RMS at 60% peak dev. modulation sensitivity, at a minimum.

48. Shall have receiver sensitivity of .25 uV and .35 μV at a minimum.

49. Shall have receiver selectivity of -50 dB at 12.5 kHz and -60 dB at 25 kHz bandwidth at a minimum.

50. Shall have intermodulation ratio of -65 dB, at a minimum.

51. Spurious emissions shall be no more than - 60 dB.