Deluxe combustion efficiency analyzer with optional PC interface
BRAND : TPI
MODEL : 712

• All the features of the 709R PLUS checks combustibles in flue, optional PC interface

712 Applications
Tuning of residential and furnaces and domestic boilers
Ambient and stack testing for CO
CO safety measurements in and around combustion sources
Temperature checking, including superheat and hydronic differential temperatures
Detecting gas leak in gas lines and around gas fueled appliances. Dual input differential manometer with 3 selectable units of measure: kPa, mBar, inH20

712 Combustion Accessories

A765: Rubber Boot
• Protective rubber boot for the following meters: 707, 708. 709, 709R, 712 and 714

A787: Carrying Case
• Soft carrying case with shoulder strap

GK11M: K-type thermocouple

• Fiberglass insulated multi-purpose beaded thermocouple probe.

712 Specifications
Carbon Monoxide ( CO) Measurement
Range 0 to 10, 000 ppm
Resolution 1 ppm
Accuracy + / -5ppm or 5% of reading whichever is greater

Oxygen ( 02) Measurement
Range 0 to 25%
Resolution 0.1%
Accuracy ± 0.3%

Carbon Dioxide ( CO2)
Range 0 to 25%
Resolution 0.1%
Calculated Value

Nitric Oxide Measurement
N/ A

NOX Measurement
N/ A

Temperature Measurement
Range -40 to 1472° F, or -40 to 800° C
Resolution 1° F or ° C
Accuracy ( K-type) ± 0.3% , ± 2° F or ± 1° C

Draft/ Pressure Measurement
Selectable Ranges mBar, kPa, and inH2O
Ranges -150 mBar to + 150 mBar -15 kPa to + 15 kPa -60 inH2O to + 60 in H20
Resolution 0.01mBar
Accuracy ± 0/ 5% fsd

Gross/ Net Efficiency
Range 0 to 100%
Resolution 0.1%
Calculated Value

CO/ CO2 Ratio
Range 0 to 0.999
Resolution 0.001
Calculated Value

Combustible Gas Level Indication
Yes ( For flue gasses)

Operating Temperature
14° F to 122° F ( -10° C to 50° C)

Charger Input Voltage
110V to 230V ( 50/ 60Hz)

Selectable Fuels
Natural Gas, LPG, Light Oil, Heavy Oil, Bituminous Coal, Anthracite Coal, Coke, Butane, Wood, Bagasse

Display Type
Backlit 3 line LCD

Data Storage
50 Locations

Data Logging
Yes ( 5 pages)

Print Capability
Yes, via optional IR printer ( A740)

PC Communication
Yes via optional IR adapter ( A767)

Date & Time Function
24 Hour Real Time Clock

Dimensions
200mm x 90mm x 60mm

Weight
500g

Conformity
BS7927 ( and the draft BS7967)