Fluke Biomedical ASM-990 Series - Manual (Page 6)

ASM-990 Series
Operators Manual
1-2
Environmental
a. Operating environment: -10 degrees C to +50 degrees C; 20% to 95% humidity, up to 2000 meters
altitude
b. Storage environment: -25 degrees C to +65 degrees C
c. Temperature – The unit is designed to operate satisfactorily in a range of -10 degrees C to +50
degrees C. Measurements logged at ambient temperature (+22 degrees C) will not vary more than
+/- 15% from those taken at the extremes. (Refer to ANSI N42.17A, paragraph 8.1.1.)
d. Temperature Shock – Measurements logged at temperatures of –10 degrees C or +50 degrees C
will not vary more than +/- 15% when the unit is taken from either of those temperature extremes to
a nominal +22 degrees C in less than five minutes. (Refer to ANSI N42.17A, paragraph 8.2.1.)
e. Humidity – Per ANSI N42.17A, paragraph 8.3.1, the mean instrument response will not vary more
than +/- 15% over the non-condensing relative humidity (RH) range of 40-95% and a nominal
temperature of 22 degrees C from the mean instrument response at 40% RH and a nominal
temperature (+22 degrees C).
f. Mechanical Shock – The unit can withstand a shock test in accordance with CEI/IEC International
Standard 61010-1. The measurements taken before and after the mechanical shocks will not be in
variance by more than +/- 15%.
g. Splashproof – The unit is designed to withstand a fine water spray for a period of two minutes, at 4
L/m, with the spray nozzle located approximately 2m from the unit. Readings shall not vary by more
than +/- 15% from the mean of a set of reference readings after it is subjected to the spray. (Refer
to ANSI N42.17A, paragraph 8.7.1 and 8.7.2.)
Power Requirements
The ASM-990 series operates on two “D” size batteries, internally connected in a series array to create a
+3 VDC power level to the unit. Recommended battery types are nickel metal hydride (NiMH)
rechargeable, or alkaline. Readings taken with fresh batteries will be within 10% of those taken with used
batteries, provided the voltage level from the battery array remains at a minimum of +2.0 VDC.
Electrical Specifications for Probe/Sensor Port
Voltage Level (output): 450 VDC to 1250 VDC
Max. Current: 50 μA
Regulation: +/- 10% of initial setting