Setup; Inlet System - Thermo Scientific 5028i Instruction Manual

Installation

Setup

The Flow screen (read only) displays the volumetric flow rate in liters
per minute. The flow is measured by the internal pressure board sensors.
Attach the small sample tube adapter to the Model 5028i inlet.
Depending upon your NIST-traceable volumetric flow transfer standard
(FTS), you may either attach your FTS now or add the flow audit
adapter to accommodate any flexible tubing that your FTS may require.
Allow 60 seconds to stabilize the flow after connecting.
Record the Model 5028i Volumetric Flow Rate as Qm and the FTS
flow rate as Qi, assuring that both are being recorded in units of actual
liters per minute. Take three readings each from Qm and Qi and average
the respective values. Use the following equation to calculate the percent
difference:
If %D is within ±4%, then the Model 5028i volumetric flow rate
acceptance test has passed. If the Model 5028i volumetric flow rate is
slightly out of tolerance, ±5%, the acceptance test should be classified as
marginal. If the volumetric flow rate performance is outside this range,
please perform a volumetric flow calibration.
For more information about the volumetric flow rate calibration, see the
"Calibration" chapter.
Setup
Setting up this monitor includes siting the monitor per local
government agency requirements, creating a waterproof inlet system
installation with vertical support, connecting the inlet system to
the instrument through the dynamic heater system, connecting
vacuum lines, establishing datalogging setting, and making the power
connections.

Inlet System

When siting the inlet system, it is best to first establish the instrument
location and height within the air monitoring station. From whatever
chosen surface the instrument is to rest on (rack or table top), add
approximately 17 inches to that height to allow for overall height of the
5028i monitor.
Next allow approximately 40 inches to attach the heated sample tube
to the top of the 5028i via 5/8-inch OD tubing unions that use Teflon
ferrules.
Thermo Fisher Scientific Model 5028i Instruction Manual 2-7