
E1
(09)
1-12-2 Kawana, Fujisawa
Kanagawa 251-8522 Japan
URL: http://www.azbil.com
Specications are subject to change without notice.
Liquid Leak Switch
with Self-contained Amplier HPQ-D series
User’s Manual
Thank you very much for purchasing the HPQ-D series.
Before operating the switch described in this user’s
manual, please take note of the points below regarding
safety.
Be sure to keep this manual nearby for handy reference.
Please, read ‘Terms and Conditions’ from following URL
before the order and use.
http://www.azbil.com/products/factory/order.html
NOTICE
Be sure that the user receives this manual before the product
is used.
Copying or duplicating this user’s manual in part or in whole
is forbidden. The information and specications in this manu-
al are subject to change without notice.
Considerable eort has been made to ensure that this man-
ual is free from inaccuracies and omissions. If you should nd
an error or omission, please contact the azbil Group.
In no event is Azbil Corporation liable to anyone for any in-
direct, special or consequential damages as a result of using
this product.
© 2002-2016 Azbil Corporation All Rights Reserved.
SAFETY PRECAUTIONS
Safety precautions are for ensuring safe and correct use
of this product, and for preventing injury to the operator
and other people or damage to property.You must observe
these safety precautions. Also, be sure to read and under-
stand the contents of this user's manual.
●Key to symbols
WARNING
• This product (switch) is designed to detect a tar-
get object but does not have any control func-
tions to secure safety such as accident preven-
tion.
• The device is not incorporated in an explosion-
proof structure. Therefore, never use it in a des-
ignated place subject to explosion-proof speci-
cations.
• Absolutely don’t incinerate this product. It is made
of PFA and PVC substances that expel poisonous
gases when burnt.
■Specications
Catalog listing HPQ-D11 HPQ-D12
Supply voltage 12 to 24 V DC (ripple 10 % max.)
Current consumption 30 mA max.
Applicable containers PVC, stainless steel, etc. *1
Standard detecting object Water *2
Operating mode Light-operated
(Normal condition: Light, Liquid leakage: Dark)
Output mode Open collector of
NPN transistor
Open collector of
PNP transistor
Control Output
Load current: 50 mA max. (Resistive load)
30 V DC max., Short circuit protection
Indicator Green ON: Normal condition
Orange ON: Liquid leakage
Operating temperature -25 to +50 °C
Operating humidity 35 to 85 % RH (No condensation allowed)
Sealing IP67 (IEC Standard)
Protection False pulse protection and
reverse polarity protection
*1 Operation may become unstable depending on the mounting
surface color or surface condition.
*2 If a target object for detection other than the one specied is to be
used, make sure to conrm in advance whether the target can be
properly detected or not.
■Output circuit diagram
BROWN
BLACK
BLUE
50 mA max.
LOAD
12 to 24 V DC
OUTPUT
CIRCUITRY
HPQ-D11
CIRCUITRY 50 mA max.
HPQ-D12
BROWN
BLACK
BLUE
OUTPUT
12 to 24 V DC
LOAD
■External dimensions unit: mm
■Mounting method
Mounttheswitchhorizontally.Aerlockingthemounting
plateinposition,inserttheswitchbodyontothemount-
ingplateandxitbytiltingdownthelockingclaspofthe
switch.
●Screw fastening
Remove the knock-out holes of the mounting base,
and insert two (2) 4 mm dia. screws and fasten the
switchwithtwo(2)4mmdia.nuts. unit: mm
Handling Precautions
• The recommended tightening torque is 0.5 N•m
max.
• Verify that the amount of thread protruding
from the mounting face doesn’t exceed 13 mm.
Otherwise, the thread will interfere with the
locking clasp and could aect locking the switch
body into position.
• Application of spring washer or adhesives is rec-
ommended to protect the switch from loosening
when used in high temperature environment.
●Attachment using adhesives
Useanappropriateadhesiveandgluethemountingbase.
Handling Precautions
• Apply a thin coating of the adhesive uniformly.
Too much adhesive will cause the detecting face
to oat.
• Make sure no adhesive seeps from the edges.
• If any adhesive seeps from the switch body,
there may be diculty mounting or removing
the switch. In addition, such a condition may
interfere with the detecting capabilities of the
device.
■Handling Precautions
●Precautions on installation and wiring
•Turn o the power supply before mounting or re-
movingtheswitch.
•Neverusethisswitchforapplicationsbeingconstant-
lyexposedtoaliquid.
•epresenceofairbubblesonthesensingareaofthe
switchmayresultinunstabledetection.
•If anextensionofcordisnecessary,usea 0.3mm2
(minimum)cableofalengthof100mmaximum.
•Whenusingacommerciallyboughtswitchingregu-
lator,groundtheamegroundterminal.Otherwise,
theswitchingnoisemayresultindetectionerrors.
•Approximately50ms is requiredto reachtostable
operationaerthepoweristurnedon.
•Route the wires of the switch separately from
power lines or through an exclusive conduit.
Otherwise,anelectricalsurgemayresultinthemal-
functionoftheswitchorcausedamagetothedevice.
•Errorsmayoccurifanyliquidisonthesensingface
orifthesensingfaceisscratched.
•Ifthecordisstronglypulledoutbypullingaround,etc.,
aer mounting the switch body, it may be dislocated
fromthemountingbase.Makesuretocheckonceagain
iftheswitchisrmlyattachedaercordwiring.
●Maintenance
•WhentheHPQSeriesbecomesdirty,wipecleanwith
thesoanddriedcloth.
•MountingbaseandlockingclasparemadeofPVC.
Donotapplyanyorganicsolventssuchasbenzene,
acetone and thinner to avoid aecting the device’s
colorchangeortoavoidanypossibledamage.
●Disposal
•Absolutelydon’tincineratethisproduct.Itismadeof
PFAandPVCsubstancesthatexpelpoisonousgases
whenburnt.
•When the HPQ Series is to be scrapped, follow all
applicablelocalindustrialwastecodes.
Switch
PFA tube
Mounting plate
φ23
36.7
916.7
)(φ4
23
φ3
10.5
Knock-out holes (2) (ø4.5)
Locking clasp
5.5
9
max.13
CP-UM-5280JE
Cautions are indicated when mishandling this product
might result in minor injury to the user, or physical damage
to this product.
CAUTION
Warnings are indicated when mishandling this product
might result in death or serious injury to the user.
WARNING
Cautions are indicated when mishandling this product
might result in minor injury to the user, or physical damage
to this product.
CAUTION
Warnings are indicated when mishandling this product
might result in death or serious injury to the user.
WARNING
1st edition: Sep. 2002 (W)
7th edition: May 2016 (V)