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Click
on drawing to view large scale version
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| SmartFan
HotSpot-Z is a compact, multiple-output temperature alarm.
Trigger temperature is adjustable by means of a jumper on the
circuit board. Normally open or normally closed outputs can
drive a logic circuit, LED or piezo alarm. Alarms are referenced
to ground. An additional normally closed optically isolated
output is provided. HotSpot-Z is compatible with temperature
sensors P1 through P9 shown on Sensors
page. |
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Features
- Wide input voltage
range of 5.0 to 25.0 VDC
- Selectable alarm
trigger temperature of 45°, 50°, or 55°C (86°, 92° or 98°C
when P3 sensor is used)
- Normally open
and normally closed outputs provide nominal 8 mA to an LED
connected between the output and L. They can sink at least
4 mA at 0.4 VDC to drive a logic circuit. A piezo alarm
would be connected between NO and +. Outputs are referenced
to ground
- Optically isolated
output sinks at least 1 mA at 0.4 volts
- Optional isolated
MOS relay alarm output for high current or high voltage
applications
Normally Closed
(E,C) Alarm Output: Optically isolated to drive logic
circuits. Closed and can sink at least 1.0 mA at 0.4 volts
below trigger temperature. Open above trigger temperature
and will accept up to 30 VDC.
Normally Closed
(NC) Alarm Output: Closed below trigger temperature and
will sink 4 mA at 0.4 volts or less. Open above trigger temperature
and will accept up to 30 VDC. Applies nominal 8 mA to an LED
connected from NC to L.
Normally Open
(NO) Alarm Output: Open below trigger temperature and
will accept up to 30 VDC. Closed above trigger temperature
and will sink 4 mA at 0.4 volts or less. Applies nominal 8
mA to an LED connected from NO to L. Applies nominal power
supply voltage to a piezo alarm connected from NO to +.
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| SPECIFICATIONS |
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Part
Number
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Sensor
Type
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015Z150
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Header
on board for remote sensor
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015Z150S
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Sensor
soldered to board
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H109
|
Hardware
Pack
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| Note:
Maximum operating temperature is 65°C |
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| INSTALLATION |
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| CONNECTIONS
/ JUMPERS |
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| Power-In
Connections (J3) |
| Connect
the power supply between pins - and + on header J3 using any
voltage between 5 and 25 VDC. Power supply current is 10 mA
maximum at 12 VDC plus an additional 8 mA for an LED if used.
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| Sensor
Connection (J2) |
| There
is no polarity consideration when connecting the sensor. To
view Sensors page click here: Sensors |
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| SUGGESTED
CONNECTING HARDWARE |
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|
Ref.
Desc.
|
Header
on Board (1)
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H109
Hardware Pack
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Quantity
|
Description
|
Manufacturer
(1)
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Part
Number (1)
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J2
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22-29-2021
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Housing
Terminal (gold)
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J3
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22-29-2071
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Housing
Terminal (gold)
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2
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PCB
Support
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Richco
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CBS-4-19
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| (1)
or equivalent |
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| OPERATION
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| Setting
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| Trigger
Temperature (J1): Use this jumper to set the trigger temperature
to 45°, 50°, or 55°C. Factory setting is 50°C. If the P3 sensor
is used, trigger temperature settings are 86°, 92°, and 98°C.
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| Alarm
Outputs (J3) |
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Normally Closed,
Isolated Output: This output is intended for connection
to a logic circuit. An optically isolated NPN transistor is
connected to pins J3:E (emitter) and J3:C (collector). The
output is closed and can sink at least 1.0 mA at 0.4 VDC for
temperatures below the trigger temperature. Above the trigger
temperature, the transistor is open and up to 30 VDC can be
applied.
Non-isolated
Outputs: The NO and NC outputs can be used to provide
a logic gate or LED alarm indication.
For logic circuit
alarm indication, each alarm output can sink up to 4 mA at
<= 0.4 VDC. When open, a maximum of 30 VDC can be applied
to each output. Power for an LED alarm indication is provided
by Pin J3:L via an internal 12 mA DC constant current source.
An LED connected between NO (normally open) and L will light
above trigger temperature. An LED connected between NC (normally
closed) and L will light below trigger temperature. A piezo
alarm would normally be connected between NO and +. Above
trigger temperature, the supply voltage is applied to the
piezo alarm.
Note: L is positive
(+); NC and NO are negative (-).
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| ALARM
CIRCUIT LOGIC |
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Alarm
Output
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Above
Current Trigger
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Below
Current Trigger
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Power
Removed from Unit
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NO
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Open
Circuit
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Short
to Ground
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Open
Circuit
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OR
|
Short
to Ground
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Open
Circuit
|
Open
Circuit
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CE
|
Open
Circuit
|
Short
to Ground
|
Open
Circuit
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