KROHNE ALTOSONIC V EN - Manual (Page 80)

ALTOSONIC V
Operating Manual rev02 E 7.30850.34.00 Page 80 of 106
CLNT0300.dat section 11 example Frequency input 1
7.4 Analog inputs AD card
The AD card has 16 analog inputs.
The input range is bipolar and only the positive range is used, therefore the resolution is 11 bit for 0 -
20mA (range has 2048 positions).
The linearity is ± 1 positions.
Accuracy 0.015% of reading ± 1bit
The resolution for 4-20 mA is 1638 positions .
This is sufficient for the standard volume correction:
−
The deviation approximately is 0.1% per 1°C for the temperature correction on the standard
volume.
−
For a span of 0 - 100°C and 4-20 mA this gives: 100°C / 1638 positions = 0.061 °C/ positions
The deviation in standard volume per bit then is 0.1%/°C * 0.061 °C/ positions = 0.0061% / positions
•
The AD input function can be disabled/enabled in the Initialisation file: HSET0300.ufp section
•
The specific secondary input can be set in Initialisation file CLNT0300.dat section 9 and 10.
•
The signals can be checked on value in the service window: IO
• Monitoring is also possible by its calibration program (see Manual: ALTOSONIC V UFP
Calibration and Verification I/O)
•
All inputs can have high/low alarm limitations. In case of an alarm a pre-defined override value can
be used (see CLNT0300.dat section 9)
•
Adjustable input range 0-20 mA
HSET0300.ufp section 4
CLNT0300.dat section 9: example Temperature proces parameter
CLNT0300.dat section 10: example Temperature proces on AD input
11.1 FREQ1_APPLIANCE=#6 //0 =SOLARTRON1, 1=SARASOTA1,
//2 =SOLARTON 1/2 CHOICE by digital input,
//3 =SARASOTA 1/2 CHOICE by digital input
//4 =Density Densitometer with span
//5 =Density Standaard with span
//6 =Counter for external flowmeter
//99=disabled
11.2 FREQ1_val_low =#0 //Lowerlimit Value, for FREQ1_APPLIANCE 4-5
11.3 FREQ1_val_high =#1000 //Upperlimit Value, for FREQ1_APPLIANCE 4-5
11.4 FREQ1_low =#0 //Lowerlimit Freq[Hz],(min=0 Hz ) FREQ1_APPL 4-5
11.5 FREQ1_high =#1000 //Upperlimit Freq[Hz],(max=5000 Hz) FREQ1_APPL 4-5
TEMPERATURE PROCES
9.8 MODE =#1 //Use input:0=disable, 1=AD-input, 2=Modbus
9.9 MODBUS_SERVICE=#0 //Service input:0=disable, 1=AD-input
9.10 Alarm_out =#1 //disable=0, enable=1 alarm to output
9.11 alarmLow =#0 //Low alarm below this value [øC]
9.12 alarmHigh =#100 //High alarm above this value [øC]
9.13 Override =#20 //Default static override value [øC] on alarm
9.14 Override_code =#0 //0=disable override value, 1=use default override
//2=use default batch average as override
AD TEMPERATURE PROCES
10.7 val_low =#0 //Lowerlimit proces temperature as [Celsius]
10.8 val_high =#100 //Upperlimit proces temperature as [Celsius]
10.9 curr_low =#4 //Lowerlimit current as [mA] (min. 0mA)
10.10 curr_high=#20 //Upperlimit current as [mA] (max. 20mA)
10.11 tau =#1 //Timeconstant (average) [sec]
10.12 channel =#2 //Channelnr on ad812/816 card ch2/5, 99=disable
4.1 AD_Card_Type =#0 //0=disable, 1=AD12 card, 2=AD16 card
4.2 AD_curr_in =#0 //Current inputs disable=0, enable=1