Alnor APM 150, Owner'S Manual, Page: 77 / 78

ELECTRONIC BALOMETER
®
SPECIFICATIONS*
Measurement Units C degrees Celsius
F degrees Fahrenheit
cfm cubic feet per minute
l/s liters per second
m
3
/h cubic meters per hour
With Optional Probes fpm feet per minute
m/s meters per second
fps feet per second
mph miles per hour
km/h kilometers per hour
Rh relative humidity
Resolution
Volume Flow 0.1 up to 100
1 cfm above 101
Velocity 0.1 fpm from 20 to 100 fpm
1 fpm from 100 to 6000 fpm
0.001 m/s from 0.1 m/s to 1 m/s
0.01 m/s from 1 m/s to 10 m/s
0.1 m/s from 10 m/s to 30 m/s
Temperature
0.1°C or °F
Relative Humidity
0.1%
Range
Volume Flow 50 to 2000 cfm
24 to 945 l/s
85 to 3400 m
3
/h
Temperature
32–122°F (0–50°C)
Accuracy
Volume Flow (Supply) ±3% of reading (±7 cfm),
(±3.3 l/s), (±12 m
3
/h)
Volume Flow (Exhaust)
±4% of reading (±7 cfm),
(±3.3 l/s), (±12 m
3
/h)
Temperature ±0.5% of reading ±1°F (0.5°C)
Pressure Drop Across
Balometer
0.01 in H20 (differential pressure)
@ 500 cfm, 2.5 Pascals (differential
pressure) @ 236 l/s or 850 m
3
/h
Balometer Hood Sizes 16 x 16 in; 2 x 2 ft; 2 x 4 ft;
1 x 4 ft; 1 x 5 ft; 3 x 3 ft;
(400 x 400 mm; 600 x 600 mm;
600 x 1200 mm; 300 x 1200 mm;
300 x 1500 mm; 900 x 900 mm)
Display .45 in high, 4 digit, 7 segment LCD
.15 in high, 2.5 digit, 7 segment
memory indicator and 19 parameter
indicators.
Memory Capability Up to 100 sets of readings
Averaging Capability
Up to 100 readings
Summing Capability
(Volume) 99E
9
in all units
Meter Dimensions 7.5 x 3.2 x 1.3 in (190 x 80 x 33 mm)
Meter Weight
11 oz (315 g)
Operating Weight
With 2 x 2 ft hood 8 lb, 12 oz (4 kg)
Packaged Dimensions 27 x 14 x 27 in (686 x 356 x 686 mm)
Packaged Weight
21 lb, 6 oz (9.7 kg) with one hood
Power Source 3 AA 1.5V alkaline batteries
Battery Life 10 hrs. minimum with continuous use
Power Saving Feature
Selectable auto shut-off
Model Description Part no.
APM 151 Complete with base, meter, one 2 x 2 ft 634-593-410
(600 x 600 mm) hood, soft carrying case,
two year limited warranty and owner’s manual
APM 153 Same as APM 151 plus one each 2 x 4 ft 634-593-411
and 1 x 4 ft hood
APM 155
Same as APM 153 plus one each 3 x 3 ft 634-593-412
and 1 x 5 ft hood
APM 150 Meter and pouch only 632-200-125
APM 150 Kit with APM 150, Model 175 air 632-200-120
velocity/temperature probe, soft carrying
case, two year limited warranty and owner’s
manual
Hood
Kit A
(2 x 4 ft, 1 x 4 ft) 634-593-115
Hood
Kit B
(1 x 5 ft, 3 x 3 ft) 634-593-125
Balometer 16 x 16 in (400 x 400 mm) 634-543-001
Hood
175
Fixed probe for air velocity and 634-431-023
temperature
220B Probe for measuring relative humidity 633-220-110
and temperature
275 45-in telescoping articulating probe for 634-431-021
air velocity and temperature
Micro
Printer
Thermal printer with battery charger 638-493-010
8521 and 2 rolls of paper
Thermal printer paper 538-493-010
Computer interface cable 634-493-404
*Specifications are subject to change without notice.