Elgas DATCOM, Руководство по эксплуатации

Страница: 168 / 228

11
Function Description
166
User 1 821 to 830 Depending on the service switch, the parameters are divided
into groups. For the effect of the service switch, see Table 31.
Parameters influencing metrological properties:
 Setting the substitute values to calculate the conversion
factor
 Setting the units for the system quantities (Tb, Pb,
combustion heat), of reference conditions for combustion
heat calculation
 DST mode setting (summer / winter time)
 Setting the parameters for storing the billing archive
 Unit and constants of the quantity, configuration of the
pulse input of metrological variables
 Setting the values for counters of volumes other than Vb,
Vbs
 Assigning the influence of the service switch to
parameter entering
 Changing the compressibility calculation method
Other parameters:
 Adding to or reducing non-metrological quantities
 Setting the parameters of non-metrological quantities -
name, marking, unit, constants
 Saving to the appropriate data archive
 • setting the input quantity connection with the output in
the form of the user equation
 Setting the communication parameters
 Setting the descriptive data - station name
 Setting the measurement frequency and the archiving
frequency
User 2 831 to 840 permits:
 Setting the gas composition (via keypad only)
 Setting the system time (when using CTR, this setting is
only possible for the "Administrators" group)
User 3 841 to 850
 Permits reading data from the device
 (does not permit writing to the device)
 Setting the access password
Table 33: Password Groups and their Specification
Notes:
Administrator with password identifier 801 is authorized to:
- Set passwords for the other administrators (ID 801 to 810)
- Set passwords with IDs 811, 821, 831 and 841
The first user in each group (ID 801, 811, 821, 831 and 841) is allowed to assign passwords to
other users in the same group.
11.6.3 Levels of Access
From the point of view of modifying parameters and other operations with the device, it is possible
to divide the users of devices according to different levels of access.