Lakeshore 335 - 1.3 Model 335 Specifications; 1.3.1 Input Specifications

1 . 3 M o de l 3 35 S p e c i f i ca ti on s 7
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1.3 Model 335
Specifications
1.3.1 Input
Specifications
Sensor
temperature
coefficient
Input range Excitation
current
Display
resolution
Measurement
resolution
Electronic
accuracy
(at 25 °C)
Measurement temperature
coefficient
Electronic
stability
1
Diode Negative 0 V to 2.5 V 10 µA ±0.05%
2,3
100 µV 10 µV ±80 µV ±0.005%
of rdg
(10 µV + 0.0005% of rdg)/°C ±20 µV
0 V to 10 V 10 µA ±0.05%
2,3
1 mV 20 µV ±80 µV ±0.01%
of rdg
(20 µV + 0.0005% of rdg)/°C ±40 µV
PTC RTD Positive 0 ) to 10 ) 1 mA
4
1 m) 0.2 m) ±0.002 )
±0.01% of rdg
(0.01 m) + 0.001% of rdg)/°C ±0.4 m)
0 ) to 30 ) 1 mA
4
1 m) 0.2 m) ±0.002 )
±0.01% of rdg
(0.03 m) + 0.001% of rdg)/°C ±0.4 m)
0 ) to 100 ) 1 mA
4
10 m) 2 m) ±0.004 )
±0.01% of rdg
(0.1 m) + 0.001% of rdg)/°C ±4 m)
0 ) to 300 ) 1 mA
4
10 m) 2 m) ±0.004 )
±0.01% of rdg
(0.3 m) + 0.001% of rdg)/°C ±4 m)
0 ) to 1 k) 1 mA
4
100 m) 20 m) ±0.04 )
±0.02% of rdg
(1 m) + 0.001% of rdg)/°C ±40 m)
0 ) to 3 k) 1 mA
4
100 m) 20 m) ±0.04 )
±0.02% of rdg
(3 m) + 0.001% of rdg)/°C ±40 m)
0 ) to 10 k) 1 mA
4
1 ) 200 m) ±0.4 )
±0.02% of rdg
(10 m) + 0.001% of rdg)/°C ±400 m)
NTC RTD
10 mV
Negative 0 ) to 10 ) 1 mA
4
1 m) 0.15 m) ±0.002) ±0.06%
of rdg
(0.01 m) + 0.001% of rdg)/°C ±0.3 m)
0 ) to 30 ) 300 µA
4
1 m) 0.45 m) ±0.002 ) ±0.06%
of rdg
(0.03 m) + 0.0015% of rdg)/°C ±0.9 m)
0 ) to 100 ) 100 µA
4
10 m) 1.5 m) ±0.01 ) ±0.04%
of rdg
(0.1 m) + 0.001% of rdg)/°C ±3 m)
0 ) to 300 ) 30 µA
4
10 m) 4.5 m) ±0.01 ) ±0.04%
of rdg
(0.3 m) + 0.0015% of rdg)/°C ±9 m)
0 ) to 1 k) 10 µA
4
100 m) 15 m) +0.002%
of rdg
±0.1 ) ±0.04%
of rdg
(1 m) + 0.001% of rdg)/°C ±30 m) ±0.004%
of rdg
0 ) to 3 k) 3 µA
4
100 m) 45 m) +0.002%
of rdg
±0.1 ) ±0.04%
of rdg
(3 m) + 0.0015% of rdg)/°C ±90 m) ±0.004%
of rdg
0 ) to 10 k) 1 µA
4
1 ) 150 m) +0.002%
of rdg
±1.0 ) ±0.04%
of rdg
(10 m) + 0.001% of rdg)/°C ±300 m)
±0.004% of rdg
0 ) to 30 k) 300 nA
4
1 ) 450 m) +0.002%
of rdg
±2.0 ) ±0.04%
of rdg
(30 m) + 0.0015% of rdg)/°C ±900 m)
±0.004% of rdg
0) to 100 k) 100 nA
4
10 ) 1.5) +0.005% of
rdg
±10.0 ) ±0.04%
of rdg
(100 m) + 0.002% of rdg)/°C ±3 ) ±0.01%
of rdg
Thermocouple Positive ±50 mV NA 1 µV 0.4µV ±1 µV ±0.05%
of rdg
5
(0.1 µV + 0.001% of rdg)/°C ±0.8µV
1
Control stability of the electronics only, in ideal thermal system
2
Current source error has negligible effect on measurement accuracy
3
Diode input excitation can be set to 1 mA
4
Current source error is removed during calibration
5
Accuracy specification does not include errors from room temperature compensation
TABLE 1-3 Input specifications