2150EX AV Flow Module - Isco

2150EX Area Velocity Flow System
Section 2 Preparation and Installation
Measure the voltage between
Test Point 1 and H5 (negative
terminal).
2A replaceable fuse
NEVER
CHARGE IN
POTENTIALLY
EXPLOSIVE ENVIRONMENT
BATTERY VOLTS (TP1)
FUSED
INPUT
VOLTAGE
MAXIMUM 50 CELSIUS
AMBIENT DURING CHARGE
MAXIMUM CHARGER RATING
20 VOLTS 2 AMPERES
Um = 250V
Un = 20V
(-) NEGATIVE (+) POSITIVE
H19
Front
Back
There is a 60K ohm resistor in series with the voltage sensing
circuit. The voltage reading measured on the circuit board may
have slight variance, depending on the voltmeter used.
Figure 2-8 Detailed view of charging circuit board
Fuse replacement
To access the 2A charge fuse (F1), remove the two mounting
screws holding the circuit board inside the compartment lid.
Replace the fuse with the specified Littelfuse 216002 or
Cooper/Bussman S501 only (part #411-9922-60).
Charger options
See Appendix B for a complete listing of part numbers
and ordering information.
1. The 2-Amp charger (part #68-2000-044) includes a connect
cable ending in alligator clips, indicator lights for maximum
output and float voltage, and protection against
reverse polarity. It can charge the 2196EX in about 6
hours. The charger is user-switched for 120/240VAC,
50/60Hz applications.
2. The Isco Model 965 five-station battery charger has five
2-pin amphenol connector ports on the front. The 965 provides
greater charging voltage, and can therefore charge to
a higher capacity than the other chargers offered. However,
because of this, the module should not remain connected
to it beyond the charging period. The charger is
user-switched for 120/240VAC, 50/60Hz applications.
2-16