Super Systems AC20 - Manual (Page 88)

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INPUTS INPUTS INPUTS INPUTS INPUTS
A) A) A) A) A) MAIN INPUT MAIN INPUT MAIN INPUT MAIN INPUT MAIN INPUT
T y p e : T y p e : T y p e : T y p e : T y p e :
- 0 to 1500 mV (when mV sensor output or oxygen are selected
as primary controlled variable).
- 1000 to 1300 mV (when carbon potential or dew point is
selected as primary controlled variable).
NOTE:
NOTE: NOTE: NOTE: NOTE: if the probe input value is out of the 1000 to 1300 mV,
the range automatically becomes 0 to 1500 mV.
Input type Input type Input type Input type Input type: isolated from others measuring inputs and digital
inputs.
Carbon range: Carbon range: Carbon range: Carbon range: Carbon range: 0.00 to 2.00%
Dew point range:
Dew point range: Dew point range: Dew point range: Dew point range: -100 to 100 °F or -75 to 40 °C
Oxygen range: Oxygen range: Oxygen range: Oxygen range: Oxygen range: 0.0 to 25.0 %
R e s o l u t i o n : R e s o l u t i o n : R e s o l u t i o n : R e s o l u t i o n : R e s o l u t i o n : 0.1
mV range: mV range: mV range: mV range: mV range: 0 to 1500 mV
Cargon resolution:
Cargon resolution: Cargon resolution: Cargon resolution: Cargon resolution: 0.01%
Dew point resolution
Dew point resolution Dew point resolution Dew point resolution Dew point resolution: 1°F (1°C)
mV resolution
mV resolution mV resolution mV resolution mV resolution: 1 mV
A c c u r a c y :
A c c u r a c y : A c c u r a c y : A c c u r a c y : A c c u r a c y :
+ 0.02 digits for 0.40 to 1.60 % of the carbon range.
+ 0.03 digits for the remaining carbon range.
Temperature drift: Temperature drift: Temperature drift: Temperature drift: Temperature drift:
- 350 ppm/°C when the range is 1000 to 1300 mV.
- 200 ppm/°C when the range is 0 to 1500 mV.
Input impedance
Input impedance Input impedance Input impedance Input impedance: > 100 M Ω
Sampling time: Sampling time: Sampling time: Sampling time: Sampling time: 125 ms (typical).
Display updating time
Display updating time Display updating time Display updating time Display updating time: 375 ms.
Insulation voltage:
Insulation voltage: Insulation voltage: Insulation voltage: Insulation voltage: 500 VAC
Probe resistance:
Probe resistance: Probe resistance: Probe resistance: Probe resistance: up to 100 K Ω
Accuracy on probe resistance measurement: Accuracy on probe resistance measurement: Accuracy on probe resistance measurement: Accuracy on probe resistance measurement: Accuracy on probe resistance measurement: 2% f.s.v.
B) TEMPERATURE INPUT B) TEMPERATURE INPUT B) TEMPERATURE INPUT B) TEMPERATURE INPUT B) TEMPERATURE INPUT
Thermocouple type:
Thermocouple type: Thermocouple type: Thermocouple type: Thermocouple type: K, S, R, B
Input type
Input type Input type Input type Input type: not isolated from others measuring inputs and
digital inputs.
Sampling time:
Sampling time: Sampling time: Sampling time: Sampling time: 1125 ms if carbon monoxide/remote set point
input is used.
750 ms otherwise.
Accuracy Accuracy Accuracy Accuracy Accuracy: + 0.2% f.s.v. + 1 digit @ 25 °C and nominal power
supply voltage.
Temperature drift: Temperature drift: Temperature drift: Temperature drift: Temperature drift: < 200 ppm/°C of full span
Source impedance:
Source impedance: Source impedance: Source impedance: Source impedance: 100 Ω max.
Current for TC open detection: Current for TC open detection: Current for TC open detection: Current for TC open detection: Current for TC open detection: -100 nA.
Cold junction
Cold junction Cold junction Cold junction Cold junction: automatic compensation from 0 to 50 °C.
Cold junction accuracy
Cold junction accuracy Cold junction accuracy Cold junction accuracy Cold junction accuracy : 0.1 °C/°C