Athena PIM Provozní pokyny stáhnout pdf (Strana 20)

4.4 Low Temperature Alarm Mode Switch: This switch gives the

operator the ability to defeat both the low temperature audio

alarm, and output connector relay operation. This feature is

useful to avoid sounding an alarm during startup or cooling

down procedures. The undertemperature LED is unaffected

by this switch. All overtemperature alarm indications are also

unaffected by this switch.

a. Low Temp. Alarm Active : In this position, undertem-

perature alarm indications operate normally.

b. Low Temp. Alarm Inhibit : In this position, an under-

temperature condition of 30 deg F (17 deg C) or more

below setpoint will

not

sound the audio alarm. Also, the

output connector relay will

not

be energized. The under-

temperature LED is unaffected, and will flash as usual.

4.5 Remote Standby Option: It is possible to wire the main frame

for remote standby operation as outlined in the following

procedure.

a. Locate the appropriate communications connector for the

zone to be occupied by the SAM. This is on the upper strip

of connectors on the rear of the model “MFC” main frame.

b. Carefully wire an isolated set of normally open relay

contacts, rated at 5 volts and1/2 amp, to pins 8 and 12

of the main frame connector. Note that this relay is

not included.

c. When the remote relay is energized, SAM will be placed in

the standby mode of operation.

d. A SAM must be installed for this option to work.

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Athena PIM Provozní pokyny Strana 20