Attachment 1 Specifications.pdf
PDF 35 KB Posted
- Attached to
- Ammonia Analyzers
- Solicitation number
- 1232SA26Q1218
About this file
This is a specifications document for ammonia analyzers required for poultry research applications. The analyzer must utilize a flow-through measurement cell with tunable diode laser spectroscopy to continuously measure aerial ammonia (NH3) concentration. The instrument must achieve a sampling speed of at least 0.5 Hz with precision below 0.8 ppm, measurement resolution of 0.01 ppm or better, and response time of 3 seconds or less across a measurement range of 0 to 100 ppm.
The analyzer must provide an analog output signal of 4-20 mA with 12-bit output signal resolution or better and require an input voltage supply range of 10-30 VDC for integration with existing data acquisition and control systems. The startup time cannot exceed 30 seconds to enable rapid system resumption following failures and prevent dangerous ammonia concentration increases. The equipment must include at least two alarm outputs, be supplied with an interface cable for initial setup, and fit within a footprint of 300 mm length by 160 mm width by 225 mm height to accommodate integration into existing equipment enclosures with data acquisition equipment at the point of use.
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| File | Type | Posted |
|---|---|---|
| SF1449_RFQ_1232SA26Q1218.pdf |
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Attachment 1 Specifications
Salient Characteristics – Ammonia analyzers for poultry research
The analyzer must use a flow through measurement cell with tunable diode laser spectroscopy and be capable of continually measuring aerial ammonia (NH3) concentration at high speed (≥ 0.5 Hz) with a precision of < 0.8 ppm, measurement resolution of ≤ 0.01 ppm, and a response time ≤ 3 s over a measurement range of 0 to 100 ppm. The instruments must have an analog output signal (4-20 mA) with 12-bit output signal resolution or better and require an input voltage supply range of 10-30 VDC to integrate with existing data acquisition and control systems. Startup time must be ≤ 30s to allow for rapid resumption of control in the event of system failure to limit ammonia concentration rise for animal safety. Analyzers must include at least two alarm outputs.
Must be supplied with an interface cable for initial setup. The analyzer and associated necessary hardware must fit within a footprint of 300 mm (L) x 160 mm (W) x 225 mm (H) to integrate into existing equipment enclosures with data acquisition equipment at the point of use.
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