Remote Alarm Terminal - Sanyo MDF-1155 Instruction Manual

OPERATING INSTRUCTIONS
Back-up system
Back-up system for MDF-1155ATN (Liquid N
1. Connect the liquid N
with this freezer. This work should be done by high pressure gas works specialists.
The pressure of liquid N
2. Operate the freezer until the freezer temperature reaches the required level.
3. Set the warning indicator of the recorder at 15
4. Switch on the liquid N
5. Make sure that liquid N
6. This completes the setting of the tank for automatic spouting in case the freezer temperature should
match the alarm set temperature.

Remote alarm terminal

The terminal of the remote alarm is installed at rear of
the machinery room, upper side of the electric box.
The signal is contact output. Contact capacity is 2 A
(DC 30 V)/0.1mA (DC 1 V).
a) output: normal open, connect with N.O. and
COM.
b) output: normal close, connect with N.C. and
COM.
Consult our dealer or our office for installation of the
remote alarm.
type)
2
tank with the back-up system joint by using the pipeline and the joint attached
2
tank should be regulated at 0.5 kg/cm
2
o
back-up. This completes the back-up system setting.
2
spouts into the freezing room with the liquid N
2
2
G.
C higher than the freezer temperature.
back-up test switch.
2
14