TSI Instruments 4000 Series User Manual

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ASCII Modes
Mode A – ASCII, comma delimited
If the comma delimited ASCII mode is chosen, the acknowledge
sequence of “OK” <CR> <LF> is sent followed by the data. The
readings returned are separated by commas and the termination
sequence is a <CR> <LF>.
If the command generated an error, an error code “ERRn” <CR>
<LF> will be returned where n represents an error code 0 through 9.
See the end of this section for a list of possible error codes.
Mode C – ASCII, comma/<CR> delimited
This mode is useful if the captured data will be imported into a
spreadsheet program. If Mode C is chosen, the acknowledge
sequence of “OK” <CR> <LF> is sent followed by the data. If you
requested only one parameter, the returned data will be separated by
<CR> <LF>. If you requested more than one parameter, these
parameters will be separated by a comma. Each group of readings
will then be separated by <CR> <LF>. The termination sequence is
<CR> <LF>.
If the command generated an error, an error code “ERRn” <CR>
<LF> will be returned where n represents an error code 0 through 9.
See the end of this section for a list of possible error codes.

TSI Instruments 4000 Series Specifications

General

Measurement Parameters	Velocity, Temperature
Data Storage	10, 000 data points
Accuracy	±0.015 m/s or ±1% of reading
Particle Size Range	Not applicable
Display	LCD
Operating Humidity	0 to 95% RH (non-condensing)

Summary

Chapter 1 - Models and Accessories

Model Designations

Details specific model numbers, gas calibration, flow range, and adapter types.

Chapter 2 - Measurements Available

Flow Rate Measurement

Explains how flow rate data is obtained via analog or serial interfaces.

Chapter 4 - Design Considerations, Mechanical

Important Safety Notes

Covers hydrogen safety and intrinsic safety aspects of the flowmeters.

Filtration Requirements

Chapter 5 - Design Considerations, Electrical

Power Requirements

Specifies voltage, current, and connection type for the flowmeter's power supply.

Output Signal, Analog

Describes the default analog output voltage range for mass flow measurement.

Chapter 7 - Specifications

Flow Measurement

Details measurement ranges and accuracy for different models and gases.

Accuracy (continued)

Provides accuracy specifications for Nitrogen and Nitrous Oxide gases.

Appendix C - Digital Serial Interface

Command Set Summary

Overview of data format, buffering, and command structure for serial communication.

Commands for Flow Rate, Volume, and Temperature Measurement

Details commands for acquiring flow rate, volume, and temperature measurement data.

Measurement Setup Commands

Setup Commands for Analog Output