!
ONLY use 3 V GLD CR2032Lithium batteries or
similar, as there is a serious risk of
EXPLOSION if other types are used. When dis-
posing of used batteries follow the instructions
and precautions printed on the battery.
3.
Reinsert the Jumper
21
(M).
n
Thermal Probe
This Control panel has an on-board connector
31
for a
KST
thermal probe (accessory item). The probe will op-
timize the backup battery charge process, by regulating
the charge voltage in accordance with the temperature
of the backup battery.
Work carefully through the following instructions (refer
to the figure on page 10):
1.
Connect the probe 9 to the connector
31
(PTC) on
the PCB.
2.
Measure the Probe temperature.
3.
Using the graph in Figure 26 and/or Table 3, find
the value (in accordance with the battery tempera-
ture) that the Switching Power supply output volt-
age will be based on.
4.
Using the trimmer
54
, adjust the voltage on the ter-
minal board
55
to the required value.
5.
Attach the probe to the backup battery, in such a
way as to obtain optimum heat transfer.
30
-10
-5
0
5
10
15
20
25
30
35
40
45
50
13,0
13,5
14,0
14,5
VOL
TA
G
E
(V
)
TEMPERATURE (°C)
a)
13,7
22
Figure 26
Switching Power Supply Output Voltage graph. To find the Output Voltage using the graph: — indicate the
Probe temperature on the
TEMPERATURE (°C)
axis; draw a line from the temperature value point up to the curve
a)
;
draw a line from the intersection point across to the
VOLTAGE (V)
axis; adjust the Output Voltage of the Switching
Power Supply to the resultant value. For example, if the Probe temperature is 22 °C, the Output Voltage of the
Switching Power Supply must be set at 13.7 V.
TEMPERATURE (°C)
-10
-5
0
5
10
15
20
25
30
35
40
45
50
VOLTAGE (V)
14.5 14.4 14,3 14,1 14,0 13,9 13,7 13,6 13,5 13,4 13,3 13,2 13,1
Table 3
Switching Power Supply Output Voltage chart. To find the Output Voltage using the chart: — select the near-
est value to the Probe temperature on the
TEMPERATURE (°C)
row; read the corresponding value on the
VOLTAGE
(V)
row; adjust the Output Voltage of the Switching Power Supply to the indicated value. For example, if the Probe tem-
perature is 22 °C, the Output Voltage of the Switching Power Supply must be set at 13.7 V.