Table of Contents
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Product Data Document
420DS-6d /
D301311X012
June 2011 - Page 5
•
Ambient temperature effect on RTD
measurement: ±0.01°C / ºC max
•
Long Term Stability at Constant Conditions:
±0.25ºC / month max
Digital Inputs
•
Number of points: up to 4 dedicated DI and 4
selectable DI (2 DI/DO, 2 DI/HSC)
•
Non-interrupting inputs
•
Internally sourced, dry contact single ended
inputs
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Input Voltage Range: Internally sourced dry
contact input - 3.3 Vdc
•
On state: >1.6 V, Off state <1.3V
•
Input current :
4 DI selectable 60 µA for low power applications
or 2 mA for in-plant noise immunity
2 DI/DO selectable 200 µA or 2.2 mA
2 DI/HSC selectable 200 µA or 2.2 mA
•
Input filtering: 15 ms time constant (contact
bounce)
•
Power consumption:
All 8 inputs ON: 0.005 watt
(4 inputs @ 66 µA and 4 @ 200 µA)
All 8 inputs ON: 0.075 watt
(4 inputs @ 2 mA and 4 @ 2.2 mA)
Digital Outputs
•
Number of points: 2 dedicated, 2 selectable DO
(2 DI/DO)
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Output type: solid state open drain MOSFET
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Operating voltage range: 10 - 31Vdc
•
Maximum operating frequency: 20 Hz
•
Current sink capability: 400 mA at 16 V (6 V
system), 400 mA at 30 V (12/24 V system)
•
Power consumption:
Not applicable to DOs
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
ControlWave
Analog Inputs
•
Number points: 3 AI optional
•
AI Resolution: 14 bit
•
Input Configuration: Externally sourced. Single–
ended inputs - jumper selectable 4–20 mA or
1–5 Vdc. Terminal block connections provided
for external source.
•
Input Impedance: 1 megΩ - 1 5 Vdc;
250 Ω - 4-20 mA
•
Input Filtering: 12 Hz
•
Channel Settling Time: 600 ms to be within
0.01% of input signal
•
Input accuracy:
0.1% of span at 25
0.2% of span -40
o
C to 70 2
•
Power consumption:
Not applicable
Analog Output
•
Number of Channels: 1 AO optional
•
Output configurations: Selectable externally
sourced 4-20 mA or 1-5 Vdc:
250 ohm with 12 V external source
650 ohm with 24 V external source
1-5 Vdc @ 5mA max., 11 to 30 Vdc external
source
•
D/A resolution: 12 bit
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Accuracy:
0.1% of span @ 25
+ 3% of span @ 25
0.3% of span @ -40 to 70
3% of span @ -40 to 70
•
Power consumption – 1 output:
Analog current output: 0.1 watt
Analog voltage output: 0.1 watt
Express
®
o
C
o
C
o
C for current output; 0.1%
o
C for voltage
o
C for current 0.3% +
o
C for voltage
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