Instruction manual

RFT9709 Transmitter Instruction Manual 29
Startup
continued
Wiring Startup TroubleshootingBefore You Begin Mounting
3.3 Event registers
Event registers are provided for security requirements for custody
transfer applications. When the RFT9709 is configured for security
mode 8 (see
Security modes
, page 49), the RFT9709 meets security
requirements for custody transfer described in National Institute of
Standards and Technology (NIST) Handbook 44.
Event registers record one change for each change "session." A change
session begins when the transmitter is taken out of security mode 8, and
ends when security mode 8 is reentered. After a change session is
ended, security event registers will increase by one (1) if any of the
parameters listed in Table 3-1 have been changed. Each register counts
up to 999, then rolls over to zero. Event registers cannot be reset.
Event registers can be read using a special version of the ProLink
program. The HART Communicator cannot be used for viewing these
registers. (Contact the factory for additional ProLink information.)
Table 3-1.
Parameters that affect
event registers
Configuration register
Mass flow cutoff
Flow damping
Volume flow cutoff
Flow direction
Primary mA scaling factors
Secondary mA scaling factors
Primary mA output trim
Secondary mA output trim
Primary mA output assignment
Secondary mA output assignment
Control output assignment
Master reset
Calibration register
Mass flow units
Volume flow units
Auto zero calibration
Density calibration
Flow calibration factor
Meter factors
Frequency output scaling factors
• Frequency
•Rate
Density calibration factors
• Density A and Density B
• K1, K2, and FD
• Density temperature coefficient
Pressure compensation factors
• Flow factor
• Density factor
• Flow calibration pressure
09start.fm Page 29 Tuesday, March 2, 1999 9:16 AM