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Device manual 6490B / 6490B-y / 6590B
W. Bälz & Sohn GmbH & Co. Koepffstraße 5 D-74076 Heilbronn Telefon (07131) 1500-0 Telefax (07131) 1500-21
9. Overview of configuration level, data list
Configuration point Display Setting Remarks
Optimisation
OPt 0 No optimisation
1 Optimisation active
Proportional band Pb 1.0% to 999.9%
Three-position controller Pb = 0 tn > 0; db = dead band
Integral action time tn 1s to 2600s
Two-position controller tn = 0 db conforms to switching hysteresis
Derivative action time td 1s to 255s; PI-control at td = 0
Dead band db 0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units] at dP = 3
Valve actuating time t.P 5s to 300s
Alarm 1 AL.1 0 No alarm, also not in case of sensor failure
1 Alarm A, depending on the setpoint, also in case of sensor failure
2 Alarm B, fixed limit value, also in case of sensor failure
3 Alarm C, band transgression around the setpoint, also in case of sensor failure
4 Alarm B, fixed limit value, alarm at under-temperature, also in case of sensor
failure
Alarm 1, type A (at AL.1=1) A1.A
0 to ± scope of measuring range [phys. unit]
Alarm 1, type B (at AL.1=2/4) A1.b measuring range: dI.L to dI.H [phys. unit]
Hysteresis for A1.A/A1.b HY.1 0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Alarm 1, type C lower limit A1.C 0 to - scope the of measuring range [phys. unit]
(at AL.1=3)
Hysteresis, lower limit for A1.C HY.1 0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Alarm 1, type C upper limit A1.C. 0 to + scope of the measuring range [phys. unit]
(at AL.1=3)
Hysteresis, upper limit for A1.C HY.1. 0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Decimal point dP 0 Display without decimal point e.g. 1234
1 Display with 1 decimal e.g. 123.4
2 Display with 2 decimals e.g. 12.34
3 Display with 3 decimals e.g. 1.234
Scaling low dI.L Displayed value at start of scale, -999 to dI.H-1 [phys. unit]
Scaling high dI.H Displayed value at full scale, dI.L+1 to 9999 [phys. unit]
Setpoint limiting low SP.L usually dI.L to SP.H [phys. unit] SP.L = SP.H: fixed setpoint not valid
Setpoint limiting high SP.H usually SP.L to dI.H [phys. unit] SP.L > SP.H: two setpoints for SP.2
Second setpoint * SP.2 dI.L to dI.H [phys. unit], switch over via digital input SP.2
Setpoint ramp SP.r 0 to scope of measuring range [phys. unit (°C) per min/hour]
Ramp direction, time unit rA.d 0 phys. unit/min, rising and falling setpoint ramp
1 phys. unit/min, only rising setpoint ramp
2 phys. unit/min, only falling setpoint ramp
3 Ramp deactivated (similar to SP.r = 0)
4 phys. unit/hour, rising and falling setpoint ramp
5 phys. unit/hour, only rising setpoint ramp
6 phys. unit/hour, only falling setpoint ramp
* option
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