KROHNE UFM 530 HT EN - Manual (Page 39)

OPERATION
6
39
UFM 530 HT
www.krohne.com 12/2013 - 4002393201- HB UFM 530 HT R02 en
Installation menu
No. of menu Display text Setting/description and functions
3.01.00, FLOW (Volume flow parameters)
3.01.01 FULL SCALE Full-scale value for 100% volume and flow rate units (see
function 1.01.01). The selection of units may be limited to SI units
only.
Available units: m 3 /s, m 3 /min, m 3 /hr, L/s, L/min, L/hr,
US.Gal/s, US.Gal/min, US.Gal/hr, bbls/hr, bbls/day or free user
configurable unit, set by using function 3.07.05...3.07.07).
3.01.02 ZERO VALUE Although zero calibrated at the factory the flow sensor might still give
an offset flow reading, at "zero" flow in the pipeline. Available
settings:
1) FIXED: factory zero setting.
2) MEASURED: value measured with function 3.01.03 (ZERO CAL).
3.01.03 ZERO CAL Zero calibration (see function 1.01.03). Note: Carry out only at "zero"
flow and with completely filled measuring tube!
Duration approximately 15s with display
indicating "BUSY":
1) STORE NO: preserve old zero value.
2) STORE YES: store new zero value.
3.01.04 MASTER TC The master time constant apply for the display and the current and
pulse outputs. It does not apply for totalisation and for the current
output in F/R setting. If required, a different time constant value can
be set for the pulse/frequency output under Function 3.05.06.
Range: 0.02...99.99 s.
3.01.05 LF CUTOFF Low-flow cut-off for display and outputs.
1) NO: fixed tripping points (ON = 0.1%, OFF = 0.2%).
2) YES: see function 3.01.06 and 3.01.07.
3.01.06 CUTOFF ON Cut off "active" value.
Range: 1 through 19% of Q
100%
.
3.01.07 CUTOFF OFF Cut off "de-active" value. Note: value "off" must be greater than value
"on"!
Range: 2 through 20% of Q
100%
.
3.01.08 METER SIZE The nominal diameter of the measuring tube. See the flow sensor
nameplate. Selection of size from meter size table:
25...3000 mm / 1...120".
3.01.09 GK VALUE At the factory, each flow sensor is calibrated and supplied with a
calibration constant (GK). This constant can be found on the flow
sensor nameplate and must equal the value on the flow sensor
nameplate.
Range: 0.02...20.
3.01.10 FLOW DIR The forward flow direction is indicated with an arrow on the flow
sensor. Available settings:
1) POSITIVE: If the actual flow is in the direction of the arrow then the
flow is in the positive direction and the converter will have a positive
flow reading.
2) NEGATIVE: reversed reading of the converter, useful when the
process flow direction is changed so the flow sensor will not need to
be reversed.