PDD: Pulse Discharge Detector

Highly sensitive Pulse Discharge Detector (PDD).

The Peak Performer 1 PDD uses a highly sensitive Pulse Discharge Detector (PDD) which has been designed specifically for process applications in UHP gases.

The PDD is used to measure trace impurities down to part per billion levels, while offering a common operating platform for simple, accurate measurements.

The PP1 technology has proven to offer a more cost-effective and user friendly alternative to other process GC's. In addition, Peak Labs practical experience and ability to customize to suit your applications makes Peak Labs your partner, not just your supplier.

Technical Information

The Peak Performer 1 PDD gas chromatograph (GC) has been optimized for nitrogen as an impurity in UHP gases to simplify the chromatography and consistency of the process application.

Accuracy

• + / - detection limit or 10% of reading, whichever is higher.

Range

5000 : 1

Examples

2 ppb – 10 ppm w/1 mL sample loop  

5ppb-25ppm w/ 200 uL sample loop

Operation

Run time:

• 400 seconds < (depending on application)

Operating Temperature:

• 55 - 85 ^°F (13 - 30 ^°C )

Gas Supply Requirements:

1. Carrier:
   
   • Purified research grade helium
   • Supply pressure 70 – 110 psig with 5% stability to purifier
   • Total flow ~200 sccm (plu ~ 50 cc per actuation)
2. Actuator:
   
   • Purified research grade helium or equivalent regulated @ 70 psig

Data Collection / Communication (Standard)

• Backlit 3" x 5.25" touch screen
• Visual chromatogram and numerical results
• On-board integration with re-run capability
• Chromatograms collected and archived via standard 9 - pin com-port in .csv format (data is excel compatible)
• Analog (0-1 VDC) trending available

Dimensions / Electrical

• 27" L x 17" W x 7" H
• 25 lbs.
• 115 VAC, 50 – 60 Hz / 220 VAC, 50-60 Hz
• 1.5 amp maximum

Accessories and other features

• Trend outputs
• Analysis averaging
• Auto start/stop capability
• 4-20 mA Output