TSI Instruments 4000 Series User Manual

49
CBT
Clears the begin-trigger level that was set with SBTx±nnn.nn. Begin-
trigger function is disabled. The flowmeter will return an acknowledge
sequence of “OK” <CR> <LF> as a response.
Example 1) CBT
CET
Clears the end-trigger level that was set with SETx±nnn.nn. End-
trigger function is disabled. The flowmeter will return an acknowledge
sequence of “OK” <CR> <LF> as a response.
Example 1) CET
SSRnnnn
Sets the sample rate at which the data is returned.
SSR Denotes set sample rate.
nnnn Denotes number of milliseconds per sample, range 1 to 1000.
(‘0005’ denotes 5 milliseconds per sample, leading zeros
must be included).

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