5. Installation
18
PNEG-2174
Sampler - Model GRA
Material Sample Transport Lines
The tubing used to transport material samples must be compatible with the operating environment and the
material sampled. Typically a 3.00" I.D. flexible hose is slipped over the discharge tube and held in place
by a worm clamp. The hose is then routed to allow material to flow via gravity to a convenient collection
point. At that point, the hose may be connected to a collection jar bracket or a Sample Collection System
cabinet.
Rigid tubing may also be used if desired for the sample transport line.
Make all connections airtight and make sure all interior surfaces of joints are smooth and flush. Any ragged
or raised tube ends will collect dust and debris as well as retard material flow. Air leaks can interfere with
the pressure or vacuum conveying and sampling system. Escaping sample material can contaminate
surrounding atmosphere and equipment.
Controller Location
1. Use vibration isolation pads when mounting the control enclosure or mount the controller in a
vibration free location.
2. Unless ordered for severe duty, locate controller so it is protected from water and dust.
3. Unless an explosion-proof rated controller was specifically ordered, DO NOT locate the controller in
a hazardous area.
4. Most applications require that the sampler be in easy view of the controller.
System Wiring
Refer to the certified electrical drawing(s) for specific wiring requirements.
The controller was completely assembled and tested with the sampler before it left the factory. The
electrical installation must comply with OSHA Regulations, the National Electrical Code and all other
applicable federal, state and local codes and regulations.
If wiring between the controller and the sampler unit is run through rigid conduit, use a short length of
flexible conduit to connect wiring to the sampler. This will isolate the rigid conduit from any vibration
originating in the product conveying line and sampler.
Electrical Power Requirements, System
110/120 VAC 50/60 Hz, Single Phase, 10 Amp Service.
Optional - 220/240 VAC 50/60 Hz, Single Phase, 5 Amp Service.
Refer to the certified electrical drawing(s) for specific wiring requirements. InterSystems strongly
recommends that electrical service to the sampling system be an isolated line. Voltage fluctuations and
line noise can affect the controller's circuit board, thus causing the sampler to malfunction.
Controller
110/120 VAC, 50/60 Hz, Single Phase, 4 Amp Max. (Includes motor power requirements).
Optional - 220/240 VAC, 50/60 Hz, Single Phase, 2 Amp Max. (Includes motor power requirements).
Solenoid Valve Coil
110/120 VAC, 50/60 Hz, Single Phase, 7 Watts.
Optional - 220/240 VAC, 50/60 Hz, Single Phase, 7 Watts.
