1.1 Introduction
We appreciate your business and your choice of Welker products. The installation, operation, and maintenance liability for this
equipment becomes that of the purchaser at the time of receipt. Reading the applicable
Installation, Operation, and
Maintenance
(IOM)
Manuals
prior to installation and operation of this equipment is required for a full understanding of its
application and performance prior to use.*
If you have any questions, please call Welker at 1-281-491-2331.
*The following procedures have been written for use with standard Welker parts and equipment. Assemblies that have been modified may have additional
requirements and specifications that are not listed in this manual.
1.2 Product Description
The Welker
Essentials™ Gas Sampler
is a low-cost sampler designed to extract samples from the center one-third (¹⁄₃) of a
pressurized gas pipeline and collect them in a connected sample cylinder. Its high durability and low maintenance requirements
make it the ideal sampler for remote field locations.
The Essentials™ Gas Sampler is comprised of a sample probe, Welker IR-7 Instrument Regulator, Welker MPS-2 Micropurge
Sample Pump, and solenoid. The compact design of this probe mounted sampler eliminates long tubing runs and sample lag
time. By minimizing the distance between the product source and the MPS-2, the Essentials™ Gas Sampler ensures quality
sample grabs. With every actuation, pressure is applied to the top of the MPS-2 piston, fully displacing the trapped sample into
the sample cylinder.
The Essentials™ Gas Sampler can be connected to a Programmable Logic Controller (PLC) or other signal control system to
operate the solenoid. Alternatively, the Essentials™ Gas Sampler can be supplied with a Welker 6Tc Timer/Controller, which is
capable of operating the solenoid for timed or proportional to flow sampling.
For this manual, the term "PLC," or Programmable Logic Controller, will be used to refer to the PLC, EFM, flow computer, or
other signal control system used by the customer to activate and operate the solenoid.
Welker may custom design the Essentials™ Gas Sampler to suit the particular application and specifications of each customer.
SECTION 1: PRODUCT INFORMATION
4
IOM-222
MODEL: ESSENTIALS™ GAS SAMPLER
REV: A
13839 West Bellfort Street, Sugar Land, TX 77498
welker.com
Service Department 281.491.2331
