Stevens A Series - Basic Instrument Specifications

1 Introduction
2
1.3 Basic Instrument
Specifications
Chart Drive (options)
. Quartz Multispeed Timer (QMT)
Time Scale
. Refer to Table 1
Gage Scale
. Refer to Tables 5 and 6
Float Pulley
. 375 mm or 18 in. circumference for
beaded float line or perforated tape
. Optional 750 mm or 36 in.
circumference pulley ring for beaded
float line or perforated float tape
Operating Temperature
. QMT clock drive (alkaline batteries)
0 to +40 degrees Celsius
(+32 to +104 degrees Fahrenheit)
. QMT clock drive (lead-acid battery)
-30 to +50 degrees Celsius
(-22 to +122 degrees Fahrenheit)
Shipping Weight
. 20.5 Kg (45 pounds)
Float Line/Tape
. Stainless steel cable, 125mm or 6 in.
bead spacing
. Stainless steel tape, 125mm or 6 in.
perforation spacing
Recommended Float Size (Diameter)
203 mm (8 in), 254 mm (10 in)
Instrument Size (HxWxD, Cover open)
42 x 64 x 44 cm
(16.5 x 25.1 x 17 in)
Chart
. A-25 (Metric)
. A-10 (English)
Accessories (optional)
. Guide Pulley for float line or tape
Table I
Time Scales, Quartz Multispeed Timer
(switch selectable)
Scale
cm/day
(in/day)
Major
Division
3.0 cm
(1.2 in.)
Minor
Division
.25 cm
(.1 in.)
Chart Life
1.5
(0.6)
48 hrs. 4 hrs. 4 yrs.
3.0
(1.2)
24 hrs. 2 hrs. 2 yrs.
6.1
(2.4)
12 hrs. 1 hr. 1 yr.
12.2
(4.8)
6 hrs. 30 min. 6 mos.
24.4
(9.6)
3 hrs. 15 min. 3 mos.
48.8
(19.2)
1.5 hrs. 7.5
min.
1.5
mos.
97.5
(38.4)
45 min. 3.75
min.
22.5 days