This page is designed to help you determine a part number for a Sierra Model 640 Thermal Mass Flow meter.  Once completed simply press the submit button at the bottom of the page and we will email or fax you a quotation.

PLEASE ENTER THE INFORMATION BELOW:

CUSTOMER NAME EMAIL ADDRESS PHONE NUMBER FAX NUMBER

The first step in creating a part number is determining the insertion length you require.  The Model 640 is an insertion meter which can be purchased with various insertion lengths depending on the line size you are measuring in.

Next, choose the enclosure you require for your application.

Enclosures
NEMA 2 Remote NEMA 2 Remote NEMA 4X Remote NEMA 4X with Junction Box

Next, what type of input power do you require for your meter.

Input Power
15 VDC 24 VDC 100 VAC 115 VAC 230 VAC

Next, select the output signal you require

Output Signal
0-5 VDC
4-20mA

Next, select the local display options.

Electronic Display
No Readout
Digital Flow Readout
Combined Flow Rate and Totalizer

Option #1
Calibrated Low Flow Alarm Calibrated High Flow Alarm Calibrated High & Low Window Alarm

Finally, please enter the flow rate you expect to be measuring.   A range is acceptable if you are not sure of the exact rate.

Flow Rate
Flow Rate

Simply press the SUBMIT button and we will email or fax you a quotation for the meter you have selected.