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Service
The red LED pulses once and the service icon is visible at power on along with the letters
SER. The number is +ve when the unit has been used for <12 months and -ve when >12
months after a service. i.e.
Maximum number of days that can be displayed after a service is -999.
The service reminder counts down from 365 days and provides visual reminders the meter
requires recalibration based on our recommendations.
The service reminder countdown only starts after the meter has been measuring flow for
more than 5 minutes since last service.
The service icon and the red LED provide visual reminders about service status. If the
spanner icon is visible in normal use the meter has passed one year since last service. As the
time since last service increases the spanner icon will flash, first slowly and then fast. After
36 months since a service the red LED will also flash once per minute.
NB. The red LED flash can be disabled by pressing and holding the flow and temperature
unit buttons for >2 sec, a confirmatory pulse of the LED is issued.
Months
Days
since SER
to SER
0
365
11
30
12
0
36
-730
NB. 4000 hours of use will cause the same service warnings as 36 months.
Calibration
Flow measurement equipment, such as flow meters and flow blocks, should be calibrated
annually or after every 4,000 hours of use. Calibrate the equipment more frequently if it is used
or stored in environments where the equipment is exposed to dust or vibrations.
Accessories
Only use approved parts and accessories, using other parts could cause permanent damage
or compromise safety.
8
Service icon
During SER
Normal
During SER
screen
operation
Solid
Not Visible
Slow Flash
Solid
Slow Flash
Slow Flash
Fast Flash
Fast Flash
LED indicator
SER screen time/
intervention
Normal
screen
operation
1 Pulse
Not Visible
1 Pulse
Not Visible
Press flow unit
1 Pulse
Not Visible
button to dismiss
1 Pulse
Press flow unit
1 Pulse
every
button to dismiss
minute
Intervention
needed for LED
during normal
needed
operation
3 sec
None
3 sec
None
None
Press and hold flow
and temperature
unit buttons to stop
pulse
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