Getting started

After completing the installation of both MCULOG control unit and the MSP900SH transmitter, the next stage is to switch on.

1. Familiarise yourself with the front panel fascia.

Key to figure:

c 4-line LCD with backlight. d Keypad with 6 function keys.

e Status LED – flashes once per second if okay.

Note: The model type is shown on the LCD display in the bottom, right-hand corner.

Front Panel Fascia of MCULOGW

2. Switch on the MCULOG by applying the power. Wait for the primary display (inset, right) to appear.

During this time, the MCULOG will read parameters from the MSP900SH transmitter.

If being used for the first time, it will prompt for the Bottom Reference of the MSP900SH transmitter and then automatically set-up the 4-20mA output span over this range. If you do not want to commission the system now, simply switch off the power – the same prompt will then re-appear when switching on the next time.

If you are commissioning the system, edit the Bottom Reference with the arrow-keys and then press the yellow key to confirm the value. The Bottom Reference can be changed at a later stage but it is better to get it correct now. Should you press the red (ESC) key, the MCULOG will continue and the Bottom Reference prompt will re-appear when switching on the next time.

Once the start-up is completed, the primary display should appear, showing the measured depth of the liquid in the tank. The value on the primary display is the P.V. (Primary Variable).

3. Familiarise yourself with the primary display.

Primary Display

Key to figure:

1.Off-line/on-line status. (Locked padlock = on-line) (See page 10)

2. Digital input status. (o = de-energised, = energised)

3.Measured variable (P.V.) and units of measurement.

4.Bar graph of 4-20mA output of MCULOG.

5. Relay (RL) status. (o = de-energised, = energised)

6.Digital communication in progress. (Absent if idle)

7.Shows specific model type.

Note: If a “Find Instrument” screen appears and remains, power off. Check the cabling and then try again. If the problem persists, follow the on-screen prompts until the primary display appears.

(IP2042/QS)

January 2006