Fisher Scientific I903C, Operation Manual

Page: 34 / 56

Isotemp ULT Chest 5-3 Fisher Scientific
Section 5
Maintenance
The following instructions describe the battery replacement procedure for
specific models.
1. Open the front door by grasping the handle and pulling.
2. Locate the battery power switch (Figure 5-1). Turn the battery power
switch to the Off position (O).
3. Remove the four screws holding the recorder bezel to gain access to the
battery.
4. Remove the three nuts securing the battery bracket. See Figure 5-1.
5. Remove the bracket and old battery. Discard properly. Install the new
battery and secure.
6. Reconnect the battery (red to positive and black to negative).
7. Replace the recorder bezel.
8. Turn the battery power switch to Standby mode ( ).
9. Close lower panel door.
1. Open the front door by grasping the handle and pulling.
2. Locate the battery power switch (Figure 5-2). Turn the battery power
switch to the Off position (O).
3. Remove the two nuts securing
the battery bracket. See Figure
5-2.
5. Remove the bracket and old
battery. Discard properly. Install
the new battery and secure.
6. Reconnect the battery (red to
positive and black to negative).
7. Replace the recorder bezel.
8. Turn the battery power switch to
Standby mode ( ).
9. Close lower panel door.
Replace Battery(s)
All Models Except 3 cu ft
3 cu ft Models
O
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
aaaaaaaa
O
System
battery
Battery
switch
Thermocouple
interconnect jack
Figure 5-2. Battery and Switch location