Greyline Instruments OCF-6.1 Primer

Next Generation Greyline Open Channel Flow & Tank Level Meter!

The NEW Greyline OCF 6.1 Open Channel Flow & Tank Level Meter allows you to continuously monitor,
display, totalize, and data log flow through any flume or weir, or measure the level or range of fluids in
tanks or vessels.

The OCF 6.1 is still the most user-friendly open channel flow & tank level meter on the market. New
features include a standard 26-million point data logger with software for easy reporting, expanded
flume and weir selections, CE approvals, and optional Modbus® RTU communications.

With the now standard data logger, there is no more differentiating factor between the SLT and OCF
product line, therefore, the SLT 5.0 will be discontinued in favor of using the OCF 6.1. Additionally, we’ve
realized cost savings through the new hardware design, and we’re happy to pass the savings along to
our reps, distributors, and customers. The price for the OCF 6.1 is less than the price of the OCF 5.0, and
slightly above the price of the SLT 5.0, a great value either way!

We will maintain an inventory of parts for repair and recalibration of legacy product.

OCF 6.1 Key Features & Benefits:

• Non-contacting ultrasonic sensor for safe and maintenance free measurement

• Large LCD display with built-in keypad for easy and fast configuration

• On-screen flow reports and standard 26 million point data logger. Get the data easily, and in the
way you prefer

• Isolated 4-20mA output, two relays, and optional Modbus® give you flexibility for connecting to
control systems

• Expanded flume & weir selections to meet modern choices of primary elements

• CE, and cCSAus hazardous location approvals for the sensor allow for installation in the most
challenging environments