Hach 3654 Portable H2/N2 Analyzer manual Accessories and Attachments, Model 32311 Flow Meter

3654 Portable H2/N2 Analyzer - Accessories and Attachments 41 of 66

5 Accessories and Attachments

5.1 Model 32311 Flow Meter

A flow meter is available as an option, to attach to the top of the flow chamber, instead of the flow rate adjustment valve usually supplied. This can be used to set an accurate flow rate of the sample. This is especially useful with small volume packages such as small cans and bottles.

This flow meter simply replaces the standard adjustment valve, as illustrated in Fig 5-1below.

Fig 5-1:Standard Adjustment Valve (left) and Flow Meter (right)

If using this flow meter option, you must ensure that you first recalibrate the instrument with the flow meter attached before you take any measurements. In addition, any measurements made must be made using exactly the same flow rate setting as used for the calibration.

The recommended flow rate should be set at 50%, though a minimum flow rate (for small volume packages) of 30% can be used. To set the flow rate, adjust the knob at the top of the flow meter until the center point of the bead indicates the desired flow rate.

Operator Manual ORBISPHERE