Sierra 240-VT, 241-VT Example for Setting an Output, First, set the desired units of measurement

Series 24-HP Instruction Manual Chapter 3 Operation

Example for Setting an Output

The following shows how to set Output 1 to measure mass flow with 4 mA = 0 lb/hr and 20 mA = 100 lb/hr with a time constant of 5 seconds. (All outputs are disabled while using the Setup Menus.)

First, set the desired units of measurement:

1.Use ￿￿ keys to move to the Units Menu (see page 3-9).

2.Press ￿ key until Mass Flow Unit appears. Press ENTER.

3.Press ￿ key until lb appears in the numerator. Press ￿ key to move the underline cursor to the denominator. Press the ￿ key until hr appears in the denominator. Press ENTER to select.

4.Press ￿ key until Units Menu appears.

Second, set the analog output:

1.Use ￿￿ keys to move to the Output Menu.

2.Press the ￿ key until 4-20 mA Output 1 appears.

3.Press ￿ key to access Measure selections. Press ENTER and press the ￿ key to select Mass. Press ENTER.

4.Press ￿ key to set the 4 mA point in the units you have selected for mass of lb/hr. Press ENTER and use ￿￿￿￿ keys to set 0 or 0.0. Press ENTER.

5.Press ￿ key to set the 20 mA point. Press ENTER and use ￿￿￿￿ keys to set 100 or 100.0. Press ENTER.

6.Press ￿ key to select the Time Constant. Press ENTER and use ￿￿￿￿ keys to select 5. Press ENTER.

7.Press the EXIT key and answer YES to permanently save your changes.

IM-24-HP 3-5