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8.4 Parameter table for the local display (S303 or S304)
8.4.1 Parameter 1: Display scale
The instrument will show the measurement signal
D3 = 0 in 000...100 [%] of Range with no decimal point (default)
D3 = 1 in 04.00 … 20.00 [mA] with a fixed decimal point, 2 digits before and after the decimal point.
If the 4-20mA loop is electrically not properly connected and therefore not closed,
the display will show OL (open Loop) to indicate this status.
D3 = 2 in 99.99 … 9999 [mg/m3] with a floating decimal point 99.99[mg/m3] or 999.9[mg/m
3
] or
9999[mg/m
3
]
To change the display scale, follow the below procedure
Navigate to Parameter 1
Key the desired value (1, 2 or 3) into the instrument.
Safe the result by pressing K3
From now on the instrument will show the measurement result in the desired unit.
8.4.2 Parameter 2: Averaging time [sec]:
S303 or S304 averaging (running average) time has been adjusted to 50 seconds in the factory, but can be
adjusted freely between 0 and 6000 seconds (1 h 30 min).
8.4.3 Parameter 3: 20 mA scaling (Range setting)
After Auto setup the 20 mA signal has been adjusted to be 20 times the dust level present during the period
automatic setup was running. This level represents 100%.
No. Description Display 303 304
1 Display scale D3 = 0 = 0.0...100.0 [%] of Range, default x x
D3 = 2 = [mg/m
3
], shows - - - - if mg/m
3
is disabled
x
2 Averaging time [sec] 000...300 [sec], default = 50 [sec] x x
3
20 mA scaling (Range setting)
000…999 [%], default 100%
determined by the value after Auto setup (20 times Baseline)
4 Alarm limit A [%] of Range 000...100 [%] of Range, default = 25% of Range (8mA) x x
5 Alarm limit B [%] of Range 000...100 [%] of Range, default = 100% of Range (20mA) x x
6 Alarm delay time [sec] 000...180 [sec], default = 30 [sec] x x
7 Flow velocity in [m/s] at 4 [mA] 000...99.9 [m/s], default = 0 [m/s] x
8 Flow velocity in [m/s] at 20 [mA] 000...99.9 [m/s], default = 0 [m/s], no compensation x
9 Zero & Span check interval 000...999 [hour], default = 0 [hour], no check x
0 Command parameter 001 Reset to factory defaults x x
002 Enable mg/m
3
calibration
x
003 Disable mg/m
3
calibration
x
1.
Display Intercept a (Integer) to show [mg/m
3
] -99...099 [mg/m
3
], default = 0 [mg/m
3
]
x
2.
Display Intercept a (Decimal) to show [mg/m
3
] 000...999 [mg/m
3
], default = 0 [mg/m
3
]
x
3.
Display Slope b (Integer) to show [mg/m
3
] 000...999 [mg/m
3
/mA], default = 0 [mg/m
3
/mA]
x
4.
Display Slope b (Decimal) to show [mg/m
3
] 000...999 [mg/m
3
/mA], default = 0 [mg/m
3
/mA]
x
5. 20 mA scaling in 000…999 [IEU] x 1 000 000 20 mA scaling in 000…999 [IEU] x 1 000 000 x
6. 20 mA scaling in 000…999 [IEU] x 1 000 20 mA scaling in 000…999 [IEU] x 1 000 x
7. Info: Firmware Version Info: Firmware Version x x