Operating Temperature:
15O
to
35°C
(59O
to 95°F). All
specifications apply over this temperature range.
Storage Temperature:
-20”
to +
40°C
(-4O
to +
104OF).
Printer Paper:
Thermal type, 58mm (2.28”) wide x
19.8m
(65’) long
with end-of-roll indicator, Welch Allyn No. 53600. Must be stored in
dark, cool location, to prevent exposure of paper. 205 double-ear
printouts per roll.
Battery:
7.2V
nickel-cadmium rechargeable, Welch Allyn No. 72700,
approximately 60 minutes continuous use. (See pg. 24)
Tips:
Four color-coded sizes.
Probe Tone:
Frequency: 226 Hz
+3%
Amplitude: 85
f
3
dB
re 20
uPa
in an ANSI HA-1
(2cc)
coupler.
Distortion: 5% maximum total harmonic distortion in an ANSI
HA-1
(2cc)
coupler.
Pump:
Direction of sweep: positive to negative pressure.
Speed: 200
rt
20
daPa/second
average during data acquisition
period
Pressure Measurement System:
Range:
+
200
to
-300
daPa
Display resolution: 20
daPa
Accuracy:
f
15% or
+
10
daPa,
whichever is greater.
Compensation: Auto-zero with each test cycle
Admittance Measurement System:
Range: 0.2 to 3.8 mmho total
0 to 1.5 mmho for Ya
0.2 to
2cc
for + 200 Vea
Display resolution:
.l
mmho for Ya
0.2~~
for
+
200 Vea
Accuracy:
kO.1
mmho or
f
5%,
whichever is greater.
45
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