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3. Insert the nose of the sampler into the valve bore and push into place .
4. Install four (4) 7/16 –14 x 1˝ socket head cap screws and tighten evenly using a 3/8˝ hex wrench . Note: A ball tip style
wrench works best in this application .
Controller Mounting (if provided)
Failure to connect the pneumatic tubing correctly can cause damage to the sampler and/or the valve assembly .
1. Locate the controller as close as possible to the sampler . Keep pneumatic line lengths to 20 ft (6 .1 m) or less .
2. Pneumatic connections on the controller are marked A, B, C, and D, and
should be connected to the corresponding pneumatic connections on the
sampler . The connection identification letters are stamped into the bottom
side of the sampler cylinder heads .
3. Make electrical connections to the controller per the drawings included in
the controller IOM manual .
4. Connect air supply to the filter/regulator . The filter/regulator is supplied
with a 3/8-inch tube compression fitting on the inlet . The sampler requires
0 .1 ft3 (2832 cc) of compressed air per cycle . Air pressure of 80–120 psi
(5 .5–8 .3 bar) is recommended for proper operation .
Operation
Set Cycle Rate
Sampling rates should be set to provide an adequate sample composition for the size of container being used . The
sampling rate is defined as the time needed to fully extend the plunger into the process line (EXTEND), the time to
retract to discharge the collected sample (RETRACT), and the time to wait between samples in the PARK position . When
used with a Sentry SAL-DBB controller, go to the SETPOINT menu and set the EXTEND, RETRACT, and PARK setpoints .
TOTAL CYCLE time = EXTEND + RETRACT + PARK
See reference drawings for plunger annulus volume . Actual collected volumes will vary . Do not overfill the container .
Insert Sampler
This procedure assumes that installation has been performed as outlined in this manual .
1. Verify that door switch on controller is in OFF position .
2. INSTALL air lines .
3. CLOSE bleed valve .
4. REMOVE block valve lockout pin .
5. OPEN the block valve .
6. Replace block valve lockout pin .
7. Open air supply valve to controller .
Sentry ISOLOK SAL-DBB Sampler
9
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