Honeywell International Inc. 8DL5821-1 Manuale Utente
3
Table 1: 5821 Operating Mode Choices
✝ When the 5821 is used with either external probe, an open-circuit or a short-circuit of the probe’s wiring results in an alarm on
that loop, and a trouble condition on all other programmed loops.
✝✝ Use a maximum wire length of 48 inches between the 5821 and the 470PB probe.
Operating Mode
Dip
Switch
Setting
Loop
Faults when…
Restores when…
External
Probe
✝
Cold Temp Sensing
SW1=OFF
SW2=OFF
1
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
No external
probe
probe
Hot Temp Sensing
SW1=OFF
SW2=OFF
2
temperature rises above
95
95
°F (35°C) for >10 minutes.
temperature drops below 92
°F
(33
°C) for > 4 minutes.
No external
probe
probe
Warm Temp
Sensing
Sensing
SW1=ON
SW2=OFF
2
temperature rises above
75
75
°F (24°C) for >10 minutes.
temperature drops below 72
°F
(22
°C) for > 4 minutes.
No external
probe
probe
Freezer Temp
Monitoring
Monitoring
SW1=OFF
SW2=ON
2
temperature rises above
10
10
°F
(-12
°C) for >30 minutes.
temperature drops below 7
°F
(-14
°C) for > 4 minutes.
Use T280R
external probe
external probe
Refrig. Temp
Monitoring
Monitoring
SW1=ON
SW2=ON
2
temperature rises above
42
42
°F (6°C) for >30 minutes.
temperature drops below 39
°F
(4
°C) for > 4 minutes.
Use T280R
external probe
external probe
Flood Sensing
SW1=OFF
SW2=ON
3
external probe tips are in
contact with water for >3
minutes.
contact with water for >3
minutes.
probe tips have not been in
contact with water for > 3
minutes.
contact with water for > 3
minutes.
Use 470PB ext.
probe shunted by
2.2M
probe shunted by
2.2M
Ω resistor ✝✝
Cold Temp Sensing
&
SW1=ON
1=Cold
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
Warm Temp
Sensing
Sensing
SW2=OFF 2=Warm
temperature rises above
75
75
°F (24°C) for >10 minutes.
temperature drops below 72
°F
(22
°C) for > 4 minutes.
No external probe
Cold Temp Sensing
&
SW1=OFF
1=Cold
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
Hot Temp Sensing
SW2=OFF
2=Hot
temperature rises above
95
95
°F (35°C) for >10 minutes.
temperature drops below 92
°F
(33
°C) for > 4 minutes.
No external probe
Cold Temp Sensing
&
SW1=ON
1=Cold
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
Refrig. Temp
Monitoring
Monitoring
SW2=ON
2=Refrig
temperature rises above
42
42
°F (6°C) for >30 minutes.
temperature drops below 39
°F
(4
°C) for > 4 minutes.
Use T280R
external probe
external probe
Cold Temp Sensing
&
SW1=OFF 1=Cold
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
Freezer Temp
Monitoring
Monitoring
SW2=ON
2=Freezer
temperature rises above
10
10
°F (-12°C) for >30
minutes.
temperature drops below 7
°F
(-14
°C) for > 4 minutes.
Use T280R
external probe
external probe
Cold Temp Sensing
&
SW1=OFF 1=Cold
temperature drops below
45
45
°F (7°C) for >10 minutes.
temperature rises 48
°F (9°C)
for >4 minutes.
Flood Sensing
SW2=ON
3=Flood
external probe tips are in
contact with water for >3
minutes.
contact with water for >3
minutes.
probe tips have not been in
contact with water for > 3
minutes.
contact with water for > 3
minutes.
Use 470PB
ext. probe
shunted by
2.2M
ext. probe
shunted by
2.2M
Ω resistor ✝✝