Operation – KROHNE UFM 530 HT EN User Manual

Page 43

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OPERATION

6

43

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.

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