A06_Specifications.docx

Salient Characteristics S19105 The USGS Water Science Center in Sacramento, CA needs to purchase one (1) spectrophotometer with accessories. This equipment needs to be able to handle the long term use in harsh environments. This equipment will be used in both fresh and brackish water.

SPECTROPHOTOMETER, 10 cm

SALIENT CHARACTERISTICS:

1. Shall be a flow-through system.

2. Shall be compact in size, maximum 10.4 cm (4.09 inches) diameter X 77 cm (30.32 inches) long.

3. Shall have a maximum in air weight of 5.9 kg (13.0 pounds).

4. Shall have a pressure housing of acetal copolymer.

5. Shall have a minimum electrical input of 10-35 VDC.

6. Shall have a maximum current draw of 0.83 A at 12 V nominal.

7. Shall have a MCBH6M connector.

8. Shall be capable of serial outputs of RS-232, -422, or -485.

9. Shall be capable of sampling rate of 4 scans/second, nominal.

10. Shall be capable of a spectral range of 400-730 nm.

11. Shall have a bandpass of 15 nm/channel.

12. Shall have a minimum pathlength of 10 cm.

13. Shall have a beam cross-section on 8 mm (0.31 inches) diameter.

14. Shall have a minimum linearity of greater than or equal to 99% R².

15. Shall have a resolution resolution of 4 nm.

16. Shall have a minimum accuracy of +/-0.01 m‾¹.

17. Shall have an operating temperature range of 0-30°C (32-86°F).

18. Shall be capable of a maximum depth of 500 m (1640 feet).

19. Shall be capable of a sampling speed of 10 cm/second.

20. Shall include two (2) spectrophotometer cage mounting kits.

21. Shall include two (2) patch cables for spectrophotometer to pump.