Operation – KROHNE UFM 530 HT EN User Manual
Page 43
OPERATION
6
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UFM 530 HT
www.krohne.com
12/2013 - 4002393201- HB UFM 530 HT R02 en
3.04.00, CURR OUTP (Current output)
3.04.01
FUNCTION
The current output can be programmed for the following functions:
1) OFF: switched off, current output steady at current value for 0 %
scale.
2) ACT FLOW: proportional with the actual volume flow.
3) CORR FLOW: proportional with the corrected volume flow. Note:
this function ist only available if the converter function is set to
CORR T or CORR T+P (see function 3.02.01)!
4) F/R IND: forward/reverse indication of actual flow.
100 pct mA value for forward flow, 0 pct mA value for reverse flow.
5) VOS: proportional with the velocity of sound (range is defined in
function 3.01.11 and 3.01.12).
6) GAIN: sensor signal gain, range is 0...100 dBV.
7) AN INP 1: proportional with the signal on analog input 1. Note: this
function is only available if the converter function is set to CORR T or
CORR T+P!
8) AN INP 2: proportional with the signal on analog input 2. Note: this
function is only available if the converter function is set to CORR T or
CORR T+P!
3.04.02
DIRECTION
Direction of current output, only available when ACT FLOW or
CORR FLOW is selected in function 3.04.01. In this case there are the
following options:
1) FORWARD: the current output will only be active when the flow is
in the forward flow direction as defined in function 3.01.10.
2) BOTH: the current output will be active when the flow is in the
forward ord reverse flow direction, indicating both in the same range.
3) F/R SPEC: forward and reverse flow measurement indicated in
different range. Use this function to indicate the reverse flow in the
range from 0 mA through 0 pct mA. Note: when the flow goes from
the forward direction to the negative direction, the current output will
pass the "0 pct" mA value down to 0 mA, where it stops!
3.04.03
RANGE
Range of current output (Note: maximum reading is 22 mA!):
1) OTHER: user defined span.
2) 0...20/22 mA: 0...100 pct / limit.
3) 4...20/22 mA: 0...100 pct / limit.
3.04.04
0 pct
Setting of mA for 0% of the range.
Range: 0...16 mA (default: 4 mA).
3.04.05
100 pct
Setting of mA for 100% of the range. Note: value must be at least
4 mA greater than current value for 0% scale!
Range: 4...20 mA (default: 20 mA).
3.04.06
LIMIT
Limitation of current output. While default is 22 mA it can be switched
to 20 mA when safety system reserve higher currents as fault codes.
Range: 20...22 mA.
3.04.07
ERR INDIC
Only available for NAMUR devices. Options:
1) I
ERR
= 3.6 mA.
2) I
ERR
= 21.5 mA.