Proline Promag 51
Commissioning
Hauser
53
6
Commissioning
6.1
Operation subject to legal metrological control/
"custody transfer measurement"
Promag 51 is a flowmeter for operation subject to legal metrological control with cold water in
Europe – in accordance with Measuring Instruments Directive 2004/22/EC, Annex MI-001.
The measuring system operates within a temperature range of +0.1 to +30 °C and can be deployed,
for example, in the supply of drinking water: Examples are given on
The Promag 51 "custody transfer mode" is implemented with a totalizer display for metrological
control and, optionally, with the measurement-specific transmission of volume pulses via the pulse
output.
To ensure correct measurement in custody transfer procedures, the piping and the measuring tube
must always be filled with liquid.
Also comply with country-specific regulations when constructing a measuring system.
6.1.1
Subsequent verification
The Measuring Instruments Directive regulates the placing on the market and putting into use of
measuring devices subject to legal metrological control.
The measuring equipment user/operator of an Promag 51 measuring system for legal metrological
control is required to apply for subsequent verification in accordance with national regulations.
The date for subsequent verification (year number) can be given on a special sticker.
6.1.2
Setting-up custody transfer mode
The devices are locked and lead-sealed when delivered to the customer.
In the case of the remote device version, the connection between the transmitter and sensor might
have to be subsequently lead-sealed on site by an authorized Endress and Hauser service technician
or by the measuring equipment owner/operator.
Proceed as follows if the device is operational and not in custody transfer mode:
1.
Break the lead seal and loosen the sealing screws (
41, A).
2.
Open the electronics compartment cover of the transmitter.
3.
Configure the functions important for custody transfer measurement
(e.g. "PULSE CT APPROV").
!
Note!
A detailed description of the functions is provided in the separate "Description of Device
Functions" manual BA081D/06/…
4.
The device is locked by entering the custody transfer code "5100" in the function OPERATION
ACCESS CODE (see also "Description of Device Functions" manual BA081D/06/…).
Once the device is locked, all the functions for recording, processing and displaying measuring
values are protected against change. These functions are indicated by a keyhole symbol (
`
) in
the separate device functions manual.
5.
Screw on the cover of the electronics compartment.
6.
Lead-seal the device
7.
The device is in custody transfer mode. The flow measurement values can now be used in
commercial transactions.