Troubleshooting Chart - Speedaire 41H528 Manuel D'utilisation

Speedaire Operating Instructions Manual
Speedaire
Cylinder Proximity Switch

troubleshooting Chart

E
Symptom
N
REED SWItCH mODEL:
G
Reed switch works
L
but LED does not light
I
S
H
Reed switch sticks
in closed position
Current or voltage leakage
when reed switch is off
Reed switch will not turn on
Reed switch turns on more
than once as magnet
passes beneath it
ELECtRONIC SWItCH mODEL:
Electronic switch
always stays on
Electronic switch
will not turn on
Electronic switch turns
on more than once as
magnet passes beneath it
Current or voltage leakage
when Electronic switch is off
magnetically Operated
®
Possible Cause(s)
1. Insufficient current draw
2. Polarity switched
1. Power load exceeding specs
2. Excessive voltage/current
spikes
3. Wire runs too long
1. Power load exceeding specs
2. Damaged reed element
1. Weak magnet strength
2. Faulty switch
3. Loose or improper wiring
1. Poles not parallel to switch
2. Dead spot on magnet
1. Excessive voltage
2. Incorrect wiring
3. Faulty switch
1. Weak magnet strength
2. Loose or improper wiring
3. Faulty switch
1. Poles not positioned properly
2. Dead spot on magnet
1. Power load exceeding specs
2. Loose or improper wiring
Corrective Action
1. Check current draw of load. It must be > 5 mA for
LED to light
2. Check polarity: Brown / Pin 1 (+) and Blue / Pin 2 (-)
if using DC power supply
1. Check current draw, power/VA and voltage of load and
compare with specs of the appropriate model sensor.
These cannot be exceeded
2. Voltage/Current spikes may be excessive for your
particular load. External transient suppression
may be required
3. Long wire runs (greater than 25') can cause
capacitance build-up and sticking will result
1. Check current, power/VA and voltage rating of load
and compare with specs of appropriate model sensor.
Those cannot be exceeded
2. Reed element was damaged. Consult factory
1. Check magnet strength on surface of sensor.
It must be >85 gauss
2. Switch is damaged. Consult factory
3. Check for proper wiring
1. Check for proper magnet polarity. The poles must be
parallel to the switch as shown in the wiring diagram
2. Check for dead spots on the magnet if polarity is correct
1. Power supply exceeds 24 VDC. Regulate if possible
2. Switch is wired incorrectly. Check wiring diagram
3. Switch was damaged possibly by transients,
or excessive current draw. Consult factory
1. Check magnet strength on surface of sensor.
It must be > 25 gauss. Check chart for sensitivity
2. Check for proper wiring
3. Switch is damaged. Consult factory
1. Check polarity of the magnet. The poles should
be oriented as shown in the wiring diagram
2. Check for dead spots on the magnet if polarity is correct
1. Check current and voltage rating of load, and
compare with specs of appropriate model sensor.
Ratings can not be exceeded
2. Check for proper wiring
4
41H528 thru 41H533