TSI Instruments 4100 Series User Manual

4
Chapter 2 - Measurements Available
Flow Rate Measurement
Flow rate data can be obtained through the linearized analog output
or via the serial interfaces.
Flow rate can be output in units of standard liters per minute (Std
L/min*) or in volumetric units of liters per minute (L/min). Refer to
Appendix C
for a description of the two measurements. Selecting
between the two measurements is accomplished through the serial
interfaces. Refer to the Command Set
section for instructions.
*TSI instruments define standard conditions as 21.1°C (70° F) and
101.3 kPa (14.7 psia, 1 bar).
Temperature Measurement
These flowmeters have an independent sensor in the flow tube to
measure the gas temperature. The information is used for internal
temperature compensation of the flow sensor element and for
converting flow from standard to volumetric units. This flow

TSI Instruments 4100 Series Specifications

General

Brand	TSI Instruments
Model	4100 Series
Category	Measuring Instruments
Language	English

Summary

Chapter 1 - Models and Accessories

Model Designations

Table outlining different model numbers, their gas calibration, flow range, and inlet/outlet adapters.

Chapter 2 - Measurements Available

Flow Rate Measurement

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

Chapter 3 - Mechanical Interface

Inlet / Outlet Connections

Chapter 4 - Design Considerations, Mechanical

Important Safety Notes

Covers hydrogen safety and intrinsic safety warnings for the flowmeters.

Filtration Requirements

Stresses the need for clean gas and upstream filters to protect the sensor.

Inlet Flow Conditioning

Liquids

Warns against submerging the flowmeter or allowing liquids into the flow tube.

Chapter 5 - Design Considerations, Electrical

Power Requirements

Specifies voltage, current, and connector type for power supply.

Output Signal, Analog

Describes the default analog output range and scaling for different models.

Digital Interfaces

Pin-out for Mini-DIN Connector

Chapter 6 - I/O Signal Description

RS-232 Bi-Directional Interface

Analog Output of Mass Flow Rate

Appendix C - Digital Serial Interface

Command Set Summary

Overviews data format, buffering, and command structure for serial communication.

Command Format

Data Acquisition for flow, temperature, and pressure

Error Codes

Lists and explains various error codes encountered during serial communication.