Operating Temperature:
to
to 95°F). All
specifications apply over this temperature range.
Storage Temperature:
to +
to +
Printer Paper:
Thermal type, 58mm (2.28”) wide x
(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:
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
Amplitude: 85 3
re 20
in an ANSI HA-1
coupler.
Distortion: 5% maximum total harmonic distortion in an ANSI
HA-1
coupler.
Pump:
Direction of sweep: positive to negative pressure.
Speed: 200 20
average during data acquisition
period
Pressure Measurement System:
Range:
200
to
-300
Display resolution: 20
Accuracy: 15% or 10
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
for + 200 Vea
Display resolution: mmho for Ya
for 200 Vea
Accuracy:
mmho or
whichever is greater.
45
