Bacharach 2820 Specifications download pdf (Page 5)

Analyzer 2810/2815/2820

Instruction 19-9222

1.0 INTRODUCTION

1.1 General

Bacharach’s line of CO

Analyzers are easy to use, but it is essential that

these Operating Instructions be read and understood by all operators

and maintenance personnel prior to using or servicing the instrument.

The 2810/2815/2820 are compact and lightweight Carbon Dioxide an-

alyzers that display the detected level of CO

in the range of either

0–10,000 ppm (2810/2815) or 0–60% (2820). The analyzer is based on

the infrared-absorption principle to detect the presence of CO

. The 2810

operates by diffusion only, while the 2815/2820 incorporates an internal

pump for drawing in gas samples. Simply turn off the pump and the

2815/2820 samples by diffusion. A sampling tube and particulate lter

are included with the 2815/2820 for remote sampling, while the 2820

also includes a desiccant lter to be used when sampling areas with high

humidity. All analyzers can store gas readings in memory, which can

later be downloaded to a personal computer via its integral IrDA commu-

nications link and the optional BACH-COM software.

1.2 Main Features

• Sampling modes:

sample draw (2815/2820) and/or diffusion (2810/2815/2820)

• Automatic compensation for elevation and changes

in barometric pressure

• Variable-pitch tone indicates CO

level (2815/2820)

• Integral pump (2815/2820)

• Battery capacity display

• Manual (snapshot) and continuous data logging of readings

with time and date stamp

• Memory capacity for approximately 100 snapshot readings and

800 sets of continuous data logged readings

• IrDA link for downloading stored data to a personal computer

• Easy calibration in fresh air

• Run-while-charging capability

1.3 Units of Measurement

Depending the model ordered, the instruments’s LCD shows CO

concen-

trations in either parts-per-million (2810/2815) or percent (2820). Please

note that 1% = 10,000 ppm, and 0.01% = 100 ppm.

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Bacharach 2820 Specifications Page 5

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