Bronkhorst EL-FLOW Prestige - Manual (Page 29)

Bronkhorst High-Tech B.V.
EL-FLOW Prestige 29 9.17.084
3.9.4 Basic alarm and counter settings
The alarm and counter settings are most easily accessible via FlowPlot or FlowView software or any of the
Bronkhorst readout/control units (BRIGHT, E-8000). For more information about the alarm parameters see section
4.2.4, for the counter parameters see section 4.2.5.
3.9.5 Zeroing (using digital operation)
The auto-zero function is most easily accessible via FlowPlot software. Select 'Instrument Settings' and use the 'Auto
zero' button in the 'Basic' tab.
To start the auto-zero function by digital operation use the following procedure:
1. Set parameter ‘ 12 Control Mode’ to value 9 (Calibration Mode); the green LED will flash normally (0.2 sec on, 0.2 sec off)
2. Set parameter ‘ 58 Calibration Mode’ to value 9 (Auto-zero)
3. The auto-zero function has started
4. Check parameter ‘ 58 Calibration Mode’:
o
value 0 = idle (auto-zeroing succeeded), ‘ 12 Control Mode’ is set to previous value.
o
value 9 = auto-zero active
o
value 255 = error: restart auto-zero (step 2), ‘ 12 Control Mode’ is set to previous value.
3.9.6 Instrument parameter list
The table below lists the relevant parameters for the EL-FLOW Prestige, sorted by FlowDDE parameter number.
FlowDDE
parameter
Parameter name Purpose Section
1 Wink Special instrument parameter Section 4.2.2
7 Init Reset Special instrument parameter Section 4.2.2
8 Measured Value (Measure) Measurement/control Section 3.9.2
9 Setpoint Measurement/control Section 3.9.2
11 Analog Input Measurement/control Section 4.2.1
12 Control Mode Special instrument parameter Section 4.2.2
21 Capacity Fluidset property Section 4.2.3
22 Sensor Type Special instrument parameter Section 4.2.1
24 Fluid Number Fluidset property Section 4.2.3
25 Fluid Name Fluidset property Section 4.2.3
28 Alarm Info Alarm settings Section 4.2.4
55 Valve Output Measurement/control Section 4.2.1
58 Calibration Mode Special instrument parameter Section 3.9.5
86 IOStatus Special instrument parameter Section 4.4.2
90 Device Type Diagnostics Section 5.1
91 BHT Model Number Identification Section 3.9.3
92 Serial Number Identification Section 3.9.3
93 Customer Model Identification Section 3.9.3
105 Firmware Version Diagnostics Section 5.1
114 Reset Special instrument parameter Section 4.2.2
115 User Tag Identification Section 3.9.3