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DIAPHRAGM FAILURE DETECTOR
(INTRINSICALLY SAFE COMPONENTS)
OPERATOR’S MANUAL
67237
RELEASED: 5-31-01
REVISED: 4-13-10
(REV. D)
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
(for 1-1/2”, 2” a nd 3” Metallic Diaphra gm Pumps with Cast Iron or Stainless S teel center bodies)
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the re sponsibility of the employer to place t his information in the hands of t he operator. Ke ep for future reference.
SENSOR DATA
Protection The components meet the r e-...................
quirements for Class 1, Divi-
sion II, Group C environment.
Voltage 30 VDC max......................
Sensor Type Electro-Optic.................
Sensor Material Polysulfone...............
GENERAL DESCRIPTION
An Aro diaphragm pump equiped with the Aro Diaphragm Failure De-
tector warnsof adiaphragm failure bysensingthe presenceof liquid in
theairchamberofthepump.Thissystemusesaliquidsensorineachof
the two air chambers.
OPERATING INSTRUCTIONS
1. Supply voltageforthecomponentscanbe throughthe 95087cable
or through the 95088 adapter (see pinout information on page 2).
2. The cable can be connected to operate an output device as re-
quired (valve, buzzer, light, etc.).
3. To clean the sensors, disconnect the 96270-1 sensors from the
95088 adapter. Unthread the sensors from the air caps. Clean the
prism of the sensors with a mild detergent or water. WARNING:
Chlorinated hydrocarbons MUST NOT BE USED
for cleaning.
See note in 5 below.
4. To reassemble, appl y PTFE tape or #80725 Permatex to t he
threadsof eachsensorandthreadto theaircap.NOTE: Torquethe
sensorstoNOMORE THAN120 in. lbs (13.56Nm).
Reconnectthe
sensors to the 95088 adapter.
5. Note: Cleanthe sensorsevery 1,000,000 cycles orevery3 months
of use.
96270-1 Sensor (2)
95088 Adapter
95087 Cable
10 m (32.8 ft)
INSTALLATION AND WARNINGS
NOTE: The power supply cable is not furnished with the unit and must
be supplied by the customer.
ALLWIRING MUSTCOMPLY WITH ALLLOCAL AND/ OR NATION-
AL ELECTRICAL CODES.
S Electrical codes that apply must be strictlyadhered to; failure todo
so may lead to shock hazard or serious injury.
S Somelocalelectrical codesmayrequiretheinstallationofrigidcon-
duit.
S The diaphragm failure detector components must beinstalled by a
qualified electrician in compliance with all national, state and local
codesand regulations to reducetherisk of electrical shock orother
serious injury during installation and operation.
S AROisnotresponsibleforaccidentsresultingfrom improperinstal-
lation of components or hardware.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 276-4658 FAX (800) 266-7016
© 2010 CCN 99856692
www.ingersollrandproducts.com