ESBD_369757_1722028473146_582-24-02810 Attachment A.pdf

Solicitation Name: Hydrogen Sulfide Cavity Ringdown Spectrometer Solicitation Number: 582-24-02810

Attachment A Specifications for a Hydrogen Sulfide Cavity Ringdown

Spectrometer

Description: The hydrogen sulfide (H2S) Cavity Ringdown Spectrometer (CRDS) will be used for real-time air monitoring by the Mobile Monitoring Team to meet the requirements of the Texas Administrative Code, Title 30, Part 1, Chapter 112, Subchapter B, section §112.31-112.32 relating to allowable emissions of hydrogen sulfide for residential, business, commercial property, or other property.

MINIMUM GENERAL SPECIFICATIONS

1. The CRDS system must meet the following requirements.

A. Measure H2S concentration

a. The CRDS must have a guaranteed measurement range (1-sigma, 5 minutes with precision at 1 part per billion [ppb] ± 0.1 % of reading, 1-signa, 5 seconds with precision at 3 ppb ± 0.4% of reading) from 0 – 20 parts per million (ppm) for H2S.

b. The CRDS must have an operational range from 0 – 300 ppm for H2S.

c. The CRDS must have a lower detection limit (3-sigma at 5 minutes) of 3 ppb for H2S.

d. The CRDS must have a zero drift of less than 3 ppb over 24 hours (peak to peak, 50-minute average) for H2S.

B. Measure methane (CH4) concentration

a. The CRDS must have a measurement range (1-sigma, 5 minutes with a precision at 0.5 ppb ± 0.05% of reading, 1-sigma, 5.0 seconds with precision at 1 ppb ± 0.2% of reading) from 0 – 3 ppm for CH4.

b. The CRDS must have an operational range from 0 – 20 ppm for

CH4.

c. The CRDS must have a max drift of less than 2 ppb over 24 hours (peak to peak, 50-minute average) for CH4.

C. CRDS response time (based on flow through the measuring cell) must be ≤ 5 seconds.

D. The CRDS must have an operating temperature from 10 – 35 degrees Celsius (˚C).

E. The CRDS must have a storage temperature from -10 – 50 degrees Celsius (˚C).

F. The CRDS must have the following data outputs:

a. digital RS232

b. analog

c. Ethernet

d. USB

G. The CRDS must have ¼” Swagelok® inlet/outlet fittings.

Solicitation Name: Hydrogen Sulfide Cavity Ringdown Spectrometer Solicitation Number: 582-24-02810

H. The CRDS dimensions must not exceed 7" H x 17" W x 17.5" D.

I. The CRDS must have the following power requirements: 100–240 VAC;

47– 63 Hz (auto-sensing); <375 W at start-up (total).

Steady-state operation: 120 W (analyzer), 150 W (pump).

J. The CRDS weight must not exceed 47.0 pounds (lbs, 21.3 kg) for analyzer and 14.3 lbs (6.5 kg) for external pump.

K. The CRDS must have a Windows 10 operating system.

L. The CRDS must have data logging software.

2. The CRDS shall be capable of measuring hydrogen sulfide and methane in ambient air such that the concentration can be determined and delivered in real time.

ADDITIONAL TERMS AND CONDITIONS

1. All items must be bid new, of current production, and include the manufacturer’s standard parts and accessories.

2. Responsive bids must include total estimated shipping charges.

3. The warranty period should consist of complete coverage of system onsite, parts, and labor for a minimum of one year from the date of acceptance (see item #8).

4. A least one (1) electronic manual must accompany each instrument. The manuals will include complete operating instructions, circuit descriptions, theory of operation, location of controls and switches, software commands, maintenance, and service instructions. The manual will also include schematic diagrams, pneumatic flow charts, lists of commonly replaced parts, warnings, and safety precautions.

5. Technical support must be available for TCEQ staff between the hours of 8 a.m. and 5 p.m. Central Standard Time (CST) during regular business days, Monday through Friday, by telephone and electronic mail (e-mail).

6. The system ordered and received by TCEQ will be tested upon receipt.

Testing will not take more than 45 days. Payment will be made within thirty (30) days after tests have been completed and the instrument has been shown to meet specifications or the day that the invoice was received, whichever is later.

Specifications for a Hydrogen Sulfide Cavity Ringdown Spectrometer