PALC 3 Volt Model PALC With Cover

This model:


Terminal Function Diagram

PALC 3 Volt Model Layout



General Specifications
Input/Output Configuration
A/D conversion channel Range: 0 - 5.12 V
Resolution: 10 bits (5.0 mV/bit)
Accuracy: ±10 mV
Programmable software multiplier: 1 to 64
Digital Encoder channel Two Index Modes:

A) Up/down counter tracks input position. Counter rollover range 1 to 65635.
B) Synchronized by external signal.

RPM channel Speed: 60 - 65535 RPM (for sample period 1 sec).
Programmable software divide: 1 to 8 poles.
Interface: 5 V TTL level input.
Frequency/Event Counter channel Frequency: 0 - 30,000 Hz
Event Counter: 16 bit, 0 - 65535
Clocking Logic: high to low transition.
Interface: 5 V logic level input.
Digital Input configuration (ST) Logic Low < 1.0 V
Logic High > 4.1V
Digital Input configuration (TTL) Logic Low < 0.8 V
Logic High > 2.1 V
Digital Output configuration (CMOS) Source 5 mA @ 3.5V
Sink 7mA @ 1.5V.
MAX all I/0 pins except Power Switch Input Voltage: -0.3 to 6.0 V
Input Current: 200 mA any input or combination of inputs combined.
MAX MOSFET Power Switch Current: 2.0 A switched to GND, open drain.
Open Circuit Voltage: 32 V, zener diode protected.
On Resistance: 0.06 ohm
Various Parameters Specification
Voltage Reference Output Voltage: 5.12 V ± 0.5%
Maximum Current: 100 mA
0.3 ohm output switch.
Serial Data Output Format Text row. Time (HH:MM:SS.D) or sample count (nnnnnn) column, followed by up to eight columns of data. Delimiter is space.
Output data terminator: CR+LF or CR only.
Input data terminator: CR+LF, CR, LF (auto-detected).
Sample Signal Outputs Green LED. Indicates sample action.
External test pin provides a 2 V pulse during a sample action. This may be used to signal external instruments.
Dimensions Enclosure ABS black plastic.
4.35 x 2.2 x 1.1 (inches).
4 x 0.17 diameter mounting holes.
Specific To PALC M4-3V
Parameter Specification
Communication RS-232 57600 Baud, 1 stop bit, no parity, no handshaking.
ASCII text.
Internal Sample Timebase Rates: 1Hz, 2Hz, 5Hz, 10Hz, 20Hz, 30Hz, 50Hz, 60Hz
Period: 00:01 to 10:59 min:sec
Supply Voltage 2V to 4.5V. Supplied by 2 size AA cells.
Battery Life
(alkaline cells, outputs unloaded)
30 days continuous service while converting and sending by RS-232 to host computer.
Approximately 3 years in sleep mode.
Current Drain
(digital inputs terminated, outputs unloaded)
5 mA typical while active and driving an active RS-232 serial port.
3 mA typical while active but not driving a port (used as a controller for example).
180 uA typical in sleep mode.
Low Battery Indication [LOWBAT] text is prepended to output data string if battery voltage is less than 2.1V.

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