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CHK Power Quality Pty Ltd, Technical Note: Miro PCM Button Interface, 1 June 2022, rev 1.00

Address: Unit 1, 3 Tollis Place, Seven Hills, NSW 2147, Sydney, Australia

Telephone: +61 2 8283 6945; Fax: +61 2 8212 8105

Website: www.chkpowerquality.com.au; Enquiries: s[email protected]

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Technical Note: Miro Points Condition Monitor

(PCM) Button Interface

This guide introduces the Miro PCM button interface and

the different functionalities they offer.

Introduction

The Miro Points Condition Monitor (PCM) has a button user

interface to allow the instrument to be put into training and

maintenance modes on-site, without needing to connect

locally or remotely with a PC. Both the Pneumatic (Miro

PCM-P) and Electric (Miro PCM-E) variants use this same

interface.

Buttons

Two buttons are available, ‘F1’and ‘F2’as seen in Figure

1. ‘F1’is used for ‘forward’or ‘OK’, while ‘F2’is used for

‘back’, ‘next option’or ‘cancel’.

LCD Pages

The function of the buttons varies depending on which LCD

page is currently being displayed. For a point monitoring

application, disabling every LCD page except Points in the

Configurations tab via Citrus can simplify the use of the

buttons (Figure 2).

If not currently displayed, the user can quickly switch to the

Points pages (or any other enabled pages) using the

buttons as described in the next section.

If the Points pages need to be hidden, deselect Points in

the configuration. This will prevent the LCD auto scrolling to

the Points pages, though the Points sub-pages can still be

accessed manually via the buttons as described in the

‘Points Menu’section of this note.

Other Pages

When the LCD is displaying a page that is not part of the

Points pages, the buttons work as follows:

Pressing the ‘F1’button switches to the next page.

Pressing the ‘F2’button switches to the previous page. If

Points was selected in the LCD configuration page and if

any of the Points pages is currently being shown on the

LCD, pressing ‘F1’or ‘F2’will make the LCD only scroll

through the 3 different Points pages. To leave the Points

pages, wait for the LCD to auto-cycle back to the non-Point

pages.

Pressing both ‘F1’and ‘F2’buttons simultaneously will

always open the Points Menu.

Points Pages

The ‘F1’and ‘F2’buttons can be used to step through the

3 different Points pages:

•Status.

Voltage/current (for Miro PCM-E) or pressure/flow

(for Miro PCM-P) for all channels

•Last A-Side operation (Normal or Reverse)

•Last B-Side operation (Normal or Reverse).

Applies only to the Miro PCM-E.

The 3 different pages can be seen below in Figures 3 to 6.

Figure 2 - Miro LCD Page Configuration tab

Figure 1 –Bottom view of the Miro PCM

instrument

Figure 3 - Last points operation screen for A-side

CHK Power Quality Pty Ltd, Technical Note: Miro PCM Button Interface, 1 June 2022, rev 1.00

Address: Unit 1, 3 Tollis Place, Seven Hills, NSW 2147, Sydney, Australia

Telephone: +61 2 8283 6945; Fax: +61 2 8212 8105

Website: www.chkpowerquality.com.au; Enquiries: s[email protected]

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Points Menu

Figure 7 shows the Points Menu page. ‘F2’is used to scroll

through the menu items via the cursor. ‘F1’activates a

menu item. The user will be asked to confirm the item by

pressing ‘F1’again or cancel by pressing ‘F2’. The Points

menu can always be accessed by pressing both ‘F1’and

‘F2’simultaneously. Exiting the Points menu will take you

to the Points pages regardless of whether Points has been

selected in the LCD configuration or not. To leave the

Points pages, wait for the LCD to auto-scroll back to the

non-Point pages as previously mentioned.

Maintenance Mode

This will start 2 hours of maintenance mode. To set the

Miro PCM into maintenance mode, go to the Points menu

and move the cursor to ‘Maintenance Mode’using the ‘F2’

button and select it using the ‘F1’button. Upon selection,

the device will ask to confirm selection as seen in Figure 8.

Press ‘F1’to confirm selection or ‘F2’to cancel.

Upon confirmation, the instrument will be put into

maintenance mode and the word ‘MAINTAINENCE

MODE:’along with a counter starting from 7200 (seconds)

will appear on the LCD screen permanently until the

counter counts down from 7200s to 0s as shown below in

Figure 9.

While the instrument is in maintenance mode, all points

operations will be listed as ‘Maintenance’in the AsMoSys

database, and no alarms or alerts will be generated even

when an operation is determined as ‘Possible Issue’or

‘Critical’. Figure 10 shows the operations when in

Maintenance mode.

If the Miro PCM instrument is powered down while in

Maintenance mode and then powered up again, the Miro

PCM resets and will default to normal operations mode.

This can be seen on the LCD where the text,

Figure 9

Figure 4 - Last points operation screen for B-side

Figure 6 - Status page for Miro PCM-E showing real time voltage and

current

Figure 7 - Status page for Miro PCM-P showing real time pressure

and flow

Figure 10 - Miro LCD page Points Menu screen

Figure 5

Figure 8 - The LCD screen showing the instrument in

maintenance mode

CHK Power Quality Pty Ltd, Technical Note: Miro PCM Button Interface, 1 June 2022, rev 1.00

Address: Unit 1, 3 Tollis Place, Seven Hills, NSW 2147, Sydney, Australia

Telephone: +61 2 8283 6945; Fax: +61 2 8212 8105

Website: www.chkpowerquality.com.au; Enquiries: s[email protected]

Get more from your

‘MAINTAINENCE MODE:’is not displayed. The Miro PCM

will have to be set into Maintenance mode again, as

required.

Start Training

This will start the training process. During training mode,

the instrument will log 30 point operations and create

reference traces. Upon approval of the reference traces by

authorised personnel, the reference traces will be used to

determine whether point operations are ‘Good’, ‘Possible

Issue’ or ‘Critical’.

To set the Miro PCM to training mode, navigate to the

Points menu, move the cursor to ‘Start Training’using the

‘F2’button and select it using the ‘F1’button. Upon

selection, the device will ask to confirm selection as seen in

Figure 11. Press ‘F1’to confirm selection or ‘F2’to cancel.

Upon confirmation, the instrument will be put into training

mode. There will be no visual indicator to say that the Miro

PCM instrument has been put into training mode on the

LCD, but on the AsMoSys database event log, there will be

events that state when training started and when training

finished. Please refer to Figure 12.

During training mode and before approval of the training

data, no point operation will be classified as either ‘Good’,

‘Possible Issue’ or ‘Critical’ on the AsMoSys database.

Instead, operations will be listed as ‘Training Not Complete’

during the training period or as ‘Awaiting Limit Approval’,

when the training limits have yet to be approved. Point

events that occur during this time will also be listed as

‘Unapproved’. Please see Figure 13.

Figure 11

Figure 13

Figure 12

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