ESBD_405176_1742927911647_582-25-08787 Attachment A.pdf

Attachment A Specifications for Gas Flow Calibrator

Description:

The Calibration Laboratory is required to use a gas flow calibrator with flow cells as a primary flow standard to calibrate and/or verify secondary equipment used in the air monitoring networks. The equipment must maintain defensible, direct traceability to National Institute of Standards and Technology (NIST). Catalogs, brand names or manufacturer's references listed in the Minimum General Specifications indicate type and quality required. Brands of like nature and quality will be considered. If proposing other than the referenced brand/model number, respondent must show manufacturer, brand or trade name, product number, and provide complete descriptive information of product offered, including product operating/service manual with response.

Minimum General Specifications:

A. Gas Flow Calibrator: Mesa Mt Lab Series ML-800 Base or equivalent

1. The gas flow calibrator must verify flows in which the gas flow being verified consists of gases that are noncorrosive, noncondensing, noncombustible, and less than 70% humidity.

2. Flow through the calibrator needs to occur via pressure or vacuum.

3. Flow measurements through the calibrator must occur in single, auto, or user-specified bursts.

4. The calibrator must have pressure and temperature sensors in the flow stream to accurately calculate volumes.

5. The calibrator must be powered with an AC Adapter/Charger (12V DC, >500ma, 2.5 mm, center positive, North American standard); and have a battery system consisting of a sealed battery and accommodate 6-8 hours of battery operation.

6. The unit must operate between 15 °C and 30 °C.

7. Storage temperature must be between 0 °C and 70 °C.

8. The unit must operate at atmospheric pressure.

9. A data port with serial RS-232 connector must be present.

B. Coated Ultra-Low Flow Cell: Mesa Lab Series ML-800 Ultra-Low flow cell ML-800-3 or equivalent

1. Ultra-Low flow cell must be compatible with the Gas Flow Calibrator listed in “A” above.

2. Required flow range of 0.5-50.0 scc/min with a standardized accuracy of +/- 0.25% and volumetric flow accuracy of +/- 0.002 scc/min.

3. Required that accuracy is stated as a percent of reading (including standardization, if applicable).

4. Gas flow inlets and outlets to the cell must be 1/4-inch ID tube compression fittings.

5. All fittings must be equivalent to Swagelok® fittings.

C. Coated Low Flow Cell: Mesa Lab Series ML-800 Low flow cell ML-800-10 or equivalent

1. Low flow cell must be compatible with the Gas Flow Calibrator listed in “A” above.

2. Required flow range of 5-500 scc/min with a standardized accuracy of +/- 0.15% and volumetric accuracy of +/- 0.15%.

3. Required that accuracy is stated as a percent of reading (including standardization, if applicable).

4. Gas flow inlets and outlets to the cell must be 1/4-inch ID tube compression fittings.

5. All fittings must be equivalent to Swagelok® fittings.

D. Coated High Flow Cell: Mesa Lab Series ML-800 High flow cell ML-800-44 or equivalent

1. High flow cell must be compatible with the Gas Flow Calibrator listed in “A” above.

2. Required flow range of 500-50,000 scc/min with a standardized accuracy of +/- 0.15% and volumetric accuracy of +/- 0.15%.

3. Required that accuracy is stated as a percent of reading (including standardization, if applicable).

4. Gas flow inlets and outlets to the cell must be 1/2-inch ID tube compression fittings.

5. Fittings must be equivalent to Swagelok® fittings.

E. Case with Foam

1. The case must accommodate all four items listed in A, B, C, and D above.

SPECIAL TERMS AND CONDITIONS

A. Delivery to be made to TCEQ, 12100 Park 35 Circle, Building B, Austin, Texas 78753.

Preferred delivery response to the agency shall be within 60 calendar days after receipt of order.

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

C. At least one (1) hardcopy and / or one (1) digital manual shall accompany each instrument. The manuals shall include complete operating instructions, circuit descriptions, theory of operation, location of controls and switches, maintenance, and service instructions. The manual shall include schematic diagrams, lists of commonly replaced parts, warnings and safety precautions, etc.

D. Warranty period: complete coverage of system, parts and labor for a minimum of one year from date of acceptance following the testing period as described in Section E below.

E. The goods or materials ordered with this request will be tested upon receipt. Testing will occur by comparing flow data against a secondary primary standard at various flow rates.

Testing will not take more than forty-five (45) days. Payment will be made within thirty

(30) days after tests have been completed and goods or materials are found to meet specifications or the day that the invoice for goods or material was received, whichever is later.

SPECIAL TERMS AND CONDITIONS