Thermo Scientific TVA2020, Instruction Manual

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Introduction
Standard Specifications
Thermo Fisher Scientific TVA2020 Instruction Manual 1-9
Table 1–1 lists the standard specifications for the TVA2020.
Table 1–1. TVA2020 Product Specifications
Item Description
Accuracy PID Instrument— ± 20 % of reading or ± 0.5 ppm, whichever is
greater, from 0.5 to 2,000 ppm. Accuracy listed is achieved
using isobutylene with a 1-point calibration at 1,000 ppm
(including drift) at the temperature and humidity of the
calibration.
FID Instrument—
±
10% of reading or
±
1.0 ppm, whichever is
greater, from 1.0 to 10,000 ppm. Accuracy listed is achieved
using methane with a 1-point calibration in the range from 100
to 500 ppm (including drift) at the temperature and humidity of
the calibration.
± 10% of reading from 3,000 to 30,000 ppm with a 1-point
methane calibration at 15,000 ppm.
Repeatability PID Instrument—1% at 100 ppm of isobutylene
FID Instrument—2% at 500 ppm of methane
Dynamic range PID Instrument—0.5 to 2,000 ppm of isobutylene
FID Instrument—1.0 to 30,000 ppm of methane
Linear range PID Instrument—0.5 to 2,000 ppm of isobutylene
FID Instrument—1.0 to 30,000 ppm of methane
Minimum detectable level The minimum detectable level is defined as seven times the
standard deviation of the peak-to-peak noise.
PID Instrument—0.5 ppm of isobutylene
FID Instrument—0.5 ppm of methane
Response time using close
area sampler PID Instrument—Less than 3.5 seconds for 90% of final value,
using 500 ppm of isobutylene
FID Instrument—Less than 3.5 seconds for 90% of final value,
using 10,000 ppm of methane
Recovery time using close
area sampler PID Instrument—Less than 4.5 seconds to return to 10% of
base line from 500 ppm of isobutylene
FID Instrument—Less than 4.5 seconds to return to 10% of
base line, using 10,000 ppm of methane
Response time using
charcoal filter adapter PID Instrument—Less than 15 seconds for 90% of final value,
using 500 ppm of isobutylene
FID Instrument—Less than 15 seconds for 90% of final value
from 10,000 ppm of methane
Recovery time using
charcoal filter adapter PID Instrument—Less than 20 seconds to return to 10% of
original value, using 500 ppm of isobutylene
FID Instrument—Less than 20 seconds to return to 10% of
original value, using 10,000 ppm of methane
Standard
Specifications