TSI Instruments 3775 User Manual

Firmware Commands B-5
R7 Legacy command to read the photometric voltage (3775
only)
Returns: 0.000–2.500 volts
Example: 2.013
RD Legacy command to read the concentration in p/cc
RV Read the version string.
Returns: Model 377x Ver B.B.B S/N AAAAAAAA
SET Commands
SAV Set analog output full scale voltage
Params 1 => 0 - 1 Volt
2 => 0 - 2 Volt
3 => 0 - 5 Volt
4 => 0 - 10 Volt
Example SAV,4 (A full scale concentration will equal
10V)
SSTART Start a new sample
Params 0 – Stop
1 - Start, data type 1
2 - Start, data type 2
Example SSTART,1 (Starts new sample)
Unit returns once/sec
Data Type 1:
UX,D,D,D,D,D,D,D,D,D,D,C,C,C,C,C,C,C,C,C,C,AN1,AN2,RIE
UX => elapsed time(sec), integer
D => tenth sec corrected counts, integer
C => tenth sec concentration, float
AN1 => analog input 1, float
AN2 => analog input 2, float
RIE => See help cmd for RIE
Data Type 2, 3776:
UX,C,C,C,C,C,C,C,C,C,C,R,R,R,R,R,R,R,R,R,R,F,F,F,F,F,F,F,F,F,F,T,T,T,T,T,T,T,T,T,T
UX => elapsed time(sec), integer
C => tenth sec concentration, float
R => tenth sec raw counts, integer
F => flowrate(cc/0.1sec), float
T => tenth sec deadtime(sec), float

TSI Instruments 3775 Specifications

General

Brand	TSI Instruments
Model	3775
Category	Laboratory Equipment
Language	English

Summary

Product Overview

Product Description

General purpose counter for detecting airborne particles down to 4 nanometers.

How it Works

Explains the process of particle growth and detection using butanol vapor.

Unpacking and Setting up the CPC

Packing List

Lists all components shipped with the Model 3775 CPC.

Setting Up

Provides step-by-step instructions for preparing the CPC for operation.

Instrument Operation

Operating Precautions

Important safety and operational guidelines before using the CPC.

Main Data Presentation Screen

Details the primary screen showing concentration data and instrument status.

Status

Technical Description

Theory

Explains the scientific principles behind condensation particle counting.

Counting Efficiency and Response Time

Particle Counting

Maintenance and Service

Replacement Parts Kits

Changing the Filters

Provides instructions and schedules for replacing various filters in the CPC.

Removing and Installing the Saturator Wick

Error Messages and Troubleshooting

Identifies common error messages and provides solutions for troubleshooting.