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10. Technical data
10.2 Additional instrument data
Power supply Batteries: 4x 1.5V round cell alkaline IEC LR6 Type AA
Rech. batt.: 4x 1.5V IEC KR 15/51 Type AA
Rech. batt. 4x 1.5V IEC KR 15/51 Type AA cascaded with plug
block: (testo 325XL only)
Mains unit: 8V /1A (Part no. 0554 1084)
Rechargeable battery life at 20°C Approx. 8h (pump on, light off)
Battery life at 20°C Approx. 8h (pump on, light off)
Storage/Transport temperature - 20 to + 50°C
Operating temperature -5 to + 45°C
Weight incl. rechargeable battery 450g
Housing material ABS
Dimensions (h x w x l) 52x 68x 216mm
Switch-off threshold for CO 4500ppm
Memory (testo 325XL only) 20 memory blocks
Recharging time/rech. batt. pack 4h (when recharged in analyser)
(testo 325XL only)
Warranty Instrument: 2 years
CO, CO/H2 measuriong cells: 12 months
02 measuring cells: 18 months
Probes and sensors: 24 months
Thermocouples: 6 months
10.3 Calculation fundamentals
Fuels and their calculation formulae
Fuel K
gr
1
K
net
1
K1
1
Q
gr
1
Q
net
1
MH
2
O
1
H
1
CO
2max
O
2
ref.
Natural gas 0.35 0.39 40 53.42 48.16 0.0 24.4 11.9 3
Light Oil 0.48 0.51 53 45.60 42.80 0.0 13.0 15.5 3
Heavy Oil 0.51 0.54 54 42.90 40.50 0.2 11.5 15.8 3
LPG 0.42 0.45 48 50.00 46.30 0.0 18.2 13.8 3
Butane
2
0.43 0.46 48 49.30 45.80 0.0 17.2 14.1 3
Coal
2
0.62 0.45 63 26.75 25.50 13.0 4.0 18.4 7
1
Fuel-specific factor
2
testo 325XL only
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