TSI Instruments 4000 Series User Manual

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SAZnnn
Sets the zero intercept for the analog output. The zero intercept nnn
is in units of mV. If nnn = 010, at zero flow the analog output will be
10 mV. This command will accept a negative offset formatted as
SZ-nnn. The zero adjustment range is –100 mV to 100 mV. Note that
this command sets the zero intercept only and is not a true “zero
adjust.” The analog output cannot go negative.
SAZ Denotes Set Analog Zero intercept.
nnn Denotes number of mV for the zero flow intercept.
Use the SAVE command to permanently store the new zero intercept
value as the new power-on default.
Example 1) SAZ030 Sets zero intercept of zero flow to +30 mV
Example 2) SAZ-050 Sets zero intercept of zero flow to –50 mV.
Note that the analog output cannot go negative.
SSRnnnn
Sets the sample rate that the data is returned at.
SSR Denotes set sample rate.

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