Testo 327 Data sheet
Combustion and Heating System Analysis
Combustion Efficiency
Analyzers
This basic efficiency analyzer is designed for
heating technicians installing or servicing
burners, boilers, furnaces and other
combustion appliances to ensure each
system’s safe operation and efficiency.
These sturdy, lightweight analyzers are
rugged and reliable with durable sensors
that come standard with a three-year
warranty – the best in class! The 327-1
operates longer in the field with minimal
routine maintenance. Once every three to
four years simply order a do-it-yourself
maintenance sensor and supplies for
replacement in the field, not in the factory!
KEY POINTS
• 3-year Sensor Warranty
• 4-line display
• 5 hr. Li-Ion rechargeable battery
• Self-service kits available
• Collect additional test data for a single report
• Generate reports with IR printer (opt.)
• Rugged single line probe connection
• Pre-programmed with 8 fuels
testo
327-1
PLUS testo Exclusive!
Includes BioHeat
®
5 fuel code
All testo combustion
analyzers use CO
sensors filtered for
Nitric Oxide (NO) gas
– found in most flue
gas. Unfiltered CO
sensors can lead to
reading errors of 25%
or more.
TECHNICAL DATA
O2(Oxygen):
Range: 0 to 21%
Resolution: 0.1%
CO (Carbon Monoxide):
Range: 0 to 4,000 PPM
Resolution: 1 PPM
Temperature:
Range: -40 to 932 ºF
Resolution: 0.1 ºF
Pressure (Differential):
Range: +/- 80" WC
Resolution: 0.01" WC
Pressure (Draft):
Range: +/- 16" WC
Resolution: 0.001" WC
Calculates:
Combustion Efficiency, Excess Air, CO2, CO-Air Free
Operating temp. range: 23°F to 113°F
Storage temp. range: -4°F to 120°F
Dimensions: 8.5" x 2.7" x 1.9"
Weight: 1.1 lbs
Battery: Li-Ion rechargeable battery
(5 hrs)
Power Supply: 120 VAC
Download a FREE Combustion Application Guide
at www.testo.us/AppGuides
www.testo.us
800-227-0729
Combustion and Heating System Analysis
Combustion Efficiency
Analyzers
327-1
(O2only): 0563 3101*
327-1
(CO only): 0563 3102
327-1: 400563 3271
327-1
Basic Kit: 0563 3203 72
327-1
Printer Kit: 0563 3203 71
327-1 Smoke
Test Kit: 400563 3274
O
2
CO X X X X X
Draft Pressure, Stack
Temperature
Efficiency, Excess Air, CO2,
CO Air-Free
Power Supply X X X X X X
Spare particle filters X X X X X
System Case X X X X
Printer X X
Smoke Spot Tester X
– Ordering Information
X X X X X
X X X X X X
X X X X
Recommended Accessories
(Included with some kits)
Printer with 7 rolls of paper ....................................PN 400563 5604
Additional Accessories, Spare Parts
and Replacement Parts
Spare (10 hr.) Li-Ion battery w/ charger..................PN 0554 1087
Smoke spot tester kit ............................................PN 0554 0307
Adapter for pressure testing ..................................PN 0554 1203
Adapter for Differential temp. (2 probes).................PN 0554 1204
Spare particle filters ...............................................PN 0554 0040
Printer paper (6 rolls) .............................................PN 0554 0568
Replacement O2cell ..............................................PN 0390 0047
Replacement CO cell.............................................PN 0390 0046
Replacement (5 hr.) Li-Ion battery ..........................PN 0515 0114
Replacement (10 hr.) Li-Ion battery ........................PN 0515 0100
Replacement thermocouple (12") ..........................PN 0430 0384
Hose extension - 9 ft. ............................................PN 0554 1202
12" modular flue gas probe w/ 7' hose ..................PN 0600 9763
Service Kits and Replacement Parts
for previous models 325 and 300
Self service kit for 325-1
(includes sensors and wear items).....................PN 400700 3251
Self service kit for 325M
(includes sensors and wear items).....................PN 400700 3252
Self service replacement O
(325-1 & 325-2 only) .........................................PN 0390 0069
Self service replacement O2sensor
(300/325M & XL) ...............................................PN 0390 0085
Self service replacement CO measuring cell
(325-1 & 325-3 only) .........................................PN 0390 0168
Self service replacement CO (H2comp.) cell
(325XL only H2Comp.)......................................PN 0390 0245
Self service replacement CO cell
(325M only) .......................................................PN 0390 0297
Replacement thermocouple for probes
(325) .................................................................PN 0430 0071
Self service replacement O2cell
(300) .................................................................PN 0390 0078
Self service replacement CO cell
(300) .................................................................PN 0390 0072
cell
2
* = analyzer only, no probes, no case, can upgrade to combustion analyzer
www.testo.us
800-227-0729
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