The Motion Sensors (MSI) PCA121S Digital to Analog Converter is a convenient and low cost device
that will provide current and/or voltage based analog output from pulsed signals when these are needed to drive plotters, recorders,
printers, and other data acquisition equipment.
Its intended use is with sensors, preamplifiers, and other devices that produce digital, pulsed output when analog
output is also desired.
The PCA121S can be used, for example, with our Digi-Pulse (DP),
Hall Effect (HE), and Magnetoresistive (MR) sensors, as well as our PA1001A
and PA2001 series of preamplifiers. The PCA121S can also be used with our Intrinsically Safe products
when it is mounted on the "safe" side of the barrier.
Features and Specifications
Input Power:
Voltage: 8 to 30 VDC
Reverse polarity protected
Pulse Input:
Frequency range: 0 to 12.8 KHz
Pulse type: 0 to 5 TTL/CMOS (other types of pulse inputs also available; contact factory for details)
Max. distance from sensor to preamp: 100'
Current Output:
Accuracy: +/- 0.05% of full-scale +/- 200 PPM
Available range: 4-20 mA
Output suitable for driving, floating or grounding loads
Maximum loop impedance: 500 ohms
Response time: 3 seconds for 10% to 90%
Voltage Output:
Accuracy: +/- 0.05% of full-scale +/- 200 PPM
Available range: 0 to 5 VDC or 0 to 10 VDC, user selectable
Impedance: <10 ohms
Response time: 3 seconds for 10% to 90%
Temperature Range:
Operating: -40°F to +185°F (-40°C to +85°C)
Storage: -40°F to +302°F (-40°C to +150°C)
Physical Dimensions:
2.58" x 1.5" x 0.41"
Enclosures:
Unit is intended for mounting in a conduit box. Custom configuration for other housings
available. Enclosure is not required but is recommended to protect unit from moisture, dirt, etc.
