| Measurement parameter |
Measuring range |
Accuracy (± 1 digit) |
Resolution |
t90 |
| Temperature |
-40° to 2,192 °F |
±0.9 °C (0.0 to 212.0 °F)
±0.5 % of m.v. (remaining meas. range) |
±0.1 °F (-40 - 1,832 °F)
±1 °F (remaining meas. range) |
|
| Draft measurement |
-4.01 to 16 inH2O |
±0.008 inH20 or ± 5% of m.v. (-0.2 to 0.24 inH20)
±0.01 inH20 (0.24 to 1.2 inH20)
±1.5% of m.v. (1.2 to 16.00 inH20) |
0.004 inH20 |
|
| Pressure measurement |
0 to 120 inH20 |
±0.2 inH20 (0.0 to 20.0 inH20)
±1% of m.v. (20.0 to 40 inH20)
±1.5 % of m.v. (remaining meas. range) |
0.04 inH20 |
|
| O2 measurement |
0 to 21 vol.% |
±0.2 vol.% |
0.1 vol.% |
< 20 sec |
CO measurement
(without H2 compensation) |
0 to 4,000 ppm |
±20 ppm (0 to 400 ppm)
±5% of m.v. (401 to 2,000 ppm)
±10% of m.v. (2,001 to 4,000 ppm) |
1 ppm |
< 60 sec |
CO measurement
(H2-compensated) |
0 to 8,000 ppm |
±10 ppm or ±10% of m.v. (0 to 200 ppm)
±20 ppm or ±5% of m.v. (201 to 2,000 ppm)
±10% of m.v. (2,001 to 8,000 ppm) |
1 ppm |
< 60 sec |
CO measurement
(H2-compensated) (testo 330-2 LX with automatic dilution) |
0 to 30,000 ppm |
±100 ppm (0 to 1000 ppm)
±10% of m.v. (1001 to 30,000 ppm) |
1 ppm |
|
CO measurement
(H2-compensated) with activated measuring range extension (testo 330i LX) |
0 to 30,000 ppm |
±200 ppm or ±20 % of m.v. (0 to 30,000 ppm) |
1 ppm |
|
CO measurement
(not H2-compensated) with activated measuring range extension (testo 330i LX) |
0 to 15,000 ppm |
±200 ppm or ±20 % of m.v. (0 to 15,000 ppm) |
1 ppm |
|
| Efficiency testing (Eta) |
0 to 120% |
0.1% |
|
|
| Flue gas loss |
0 to 99.9% |
|
0.1% |
|
CO2 determination
(digital calculation from O2) |
Display area 0 to CO2 max |
±0.2 vol.% |
0.1 vol.% |
< 40 sec |
| Option NO measurement |
0 to 3,000 ppm |
±5 ppm (0 to 100 ppm)
±5% of m.v. (101 to 2,000 ppm)
±10% of m.v. (2,001 to 3,000 ppm) |
1 ppm |
< 30 sec |
Ambient CO2 measurement
(with CO probe) |
0 to 500 ppm |
±5 ppm (0 to 100 ppm)
±5 % of m.v. (>100 ppm) |
1 ppm |
approx. 35 sec |
Gas leak measurement for combustible gases
(with gas leak detector probe) |
Display range 0 to 10,000 ppm CH4/C3H8 |
Signal visual indication (LED) audible indication by buzzer |
|
< 2 sec |
Ambient CO2 measurement
(with ambient CO2 probe) |
0 to 1 vol.%
0 to 10,000 ppm |
± 50 ppm or ± 2% of m.v. (0 to 5,000 ppm)
± 100 ppm or ± 3% of m.vl. (5,001 to 10,000 ppm) |
|
approx. 35 sec |
Differential pressure, flow velocity and temperature
(via fine pressure probe) |
±10,000 inH20
0.15 to 3 m/s max. -40 to 2,192 °F (dependent on probe) |
±0.001 inH20 (0 to 0.04 inH20) plus ±1 digit
±3% of m.v. (0.04 to 40 inH20) plus ±1 digit
±0.9 °F (-40 to 212 °F)
±0.5 % of m.v. (remaining meas. range) plus probe accuracy |
0.1 m/s
0.1 °F |
|