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Specifications
The ISOLOK MSA sampler takes 0 .5 cc of sample per cycle . With the standard controller, it can be cycled at any rate
between 180 samples per minute maximum and 2-1/2 samples per minute minimum . It meets sanitary construction
standards and carries the 3-A symbol .
Sampler Controller
Housed in a stainless steel enclosure, the ISOLOK MSA sampler controller uses solid state timing to actuate a three-way
solenoid valve that provides a compressed air pulse to operate the sampler . Services required to control the sampler
are a source of compressed air at 50 psi minimum to 120 psi maximum, and a direct current electric supply, 12 VDC .
Cycle rate [timing] adjustment is provided by the sampler controller dial .
Sample Collection Containers
Refer to your system application drawing for container mounting adapter or alternate sample collection methods
provided on your specific equipment .
Bottles
Sample collection bottles in 4, 8 and 16 oz (125, 250 and 500 ml) capacities with 24 mm threads are available and
screw directly onto the sampler body .
Bag Adapter or Vial Adapter
A typical ISOLOK MSA sampler includes a sample bag mounting adapter or a vial adapter . Either mounts onto the
discharge port in the sampler body . The bag adapter holds wire-tie plastic sample bags, while the vial adapter mounts
single-service plastic sample vials .
ƒ BAG ADAPTER . Intended to be used with single service sanitary plastic bags that close with a built-in wire tie . Sizes
up to about an 8 oz (250 ml) capacity can be supported by carefully folding the open bag mouth and wire around
the small diameter below the drip shield . Larger capacity bags are available, but should be approached with
caution, as the weight of larger samples could cause a bag to pull off of the adapter . Excessive twisting of the wire
tie of a large bag also could distort the closure tie to the point where the bag could leak during later handling .
ƒ VIAL ADAPTERS . Intended to be used with single-service sanitary plastic sample vials . For the greatest simplicity in
setting the sampling rate for a given farm load, use the largest capacity vial that is practical .
Like all connections, Sentry ISOLOK samplers must be initially installed and periodically inspected to ensure all
connectors, clamps and fasteners are firmly tightened . If screws or connectors are not propertly secured, the sampler
could leak or sustain damage .
Follow your plant safety procedures whenever maintenance or inspection is required on this sampler .
Do not weld, machine or otherwise modify the sampler or controller in any manner . Consult Sentry Equipment before
considering any changes to the sampler .
Installation
Selection of Installation Location
Both the sampler and sampler controller are intended to be installed inside equipment cabinet(s) . For milk truck
applications, these cabinets are customarily part of milk pickup tankers . (See Appendix of this manual for installation
on a milk truck .) Most sanitary standards require that these cabinet(s) be designed to protect pumps, valves and other
ISOLOK MSA Sampler
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