22
Appendix A
Instrument Operating Conditions:
Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II
Relative Humidity (Models 8386/8386A):
Range:
0 to 95% RH
Accuracy
6
: ±3% RH
Resolution: 0.1% RH
Wet Bulb Temperature (Models 8386/8386A)
Range:
40 to 140°F (5 to 60°C)
Resolution: 0.1°F (0.1°C)
Dew point (Model 8386/8386A):
Range:
5 to 120°F (-15 to 49°C)
Resolution: 0.1°F (0.1°C)
Heat Flow (Models 8386/8386A):
Range:
Function of velocity, temperature, humidity, and
barometric pressure
Measurements available: Sensible heat flow, latent heat flow, total heat
flow and sensible heat factor
Units measured:
BTU/hr, kW
Static / Differential Pressure (Models 8385/8385A/8386/8386A):
Range
7
:
-5 to +15 in. H
2
O (-9.3 to +28.0 mm Hg, -1245 to +3735 Pa)
Accuracy:
±1% of reading ±0.005 in. H
2
O (±1 Pa, ±0.01 mm Hg)
±0.02%/°F (±0.03%/°C)
Resolution: 0.001 in. H
2
O (1 Pa, 0.01 mm Hg)
Duct Size (all models):
Range:
1 to 250 inches in increments of 0.1 inches (1 to 635 cm in
increments of 0.1 cm)
Data Storage Capabilities (all models):
Range:
Up to 1394 samples and 275 test IDs (one sample can contain
all eleven measurement types)
Logging Interval (all models):
Intervals:
2 sec, 5 sec, 10 sec, 20 sec, 30 sec, 60 sec, 2 min, 5 min, 10
min, 20 min, 30 min, 60 min
