ISCO 4210 - Chart Longevity

4210 Flow Meter
Section 1 Introduction
1-11
Table 1-3 4210 Chart Longevity
Note
Report Generator is turned off.
Chart Speed, Inch/Hour Time to Empty Roll
4 195 Hours (8
1
/8 Days)
216
1
/4Days
132
1
⁄2 Days
0.5 65 Days
Table 1-4 Battery Life Expectancy
Flow Meter Settings Minimum Default Maximum
Reading Interval 5 Minutes 30 Seconds Continuous
Printer Off Off 4" per Hour
Report Generator Off Off Every Hour
Average Current 12 mA 40 mA 125 mA
Nickel-Cadmium
3
12.5 Days
5
3.7 Days 1.2 Days
Lead-Acid
4
20.3 Days 6 Days 1.9 Days
1. These figures are approximations based on calculations; actual
times for your flow meter may vary due to factors of battery age,
charge condition, operating temperatures, and component differ-
ences. “Minimum” settings are those providing the lowest average
current draw. “Maximum” settings are those requiring the highest
current draw. Your program should draw somewhere between the
two.
2. The default settings are the program entered at the factory. You can
reset the flow meter to the default program at any time by pressing
the 1 and CLEAR ENTRY keys at the same time.
3. The nickel-cadmium battery has a capacity of 4.0 ampere-hours at
20° C.
4. The lead-acid battery has a capacity of 6.5 ampere-hours at 20° C.
(Both batteries are assumed to be fully-charged with at least 95% of
rated capacity and in good condition. These calculations also
assume a 5% safety factor at the end of discharge. Lead-acid batter-
ies should never be completely discharged.)
5. All fractional times are rounded down, rather than up.