Features

The FloPSI (Flash Programmable Status Indicator) is a compact LED module which indicates green when the input voltage is between two easily programmable levels and red when the input voltage is higher or lower. The levels are easily set and stored in Flash memory. They can be changed as often as desired. A FloPSI can be used in countless applications where a GO / NO GO indicator is required. The module incorporates three outputs, one for each colour level, allowing the user to drive external alarms or to control the process being monitored. Connection to the 10 x 10mm module is via 8-way DIL pins. A plastic snap-in bezel for panel mounting is included. For a list of compatible sensors click here. This is a popular part, normally stocked in high quantity and suitable for new designs.

Specification		Min.	Typ.	Max.	Unit
Supply voltage (V+ to 0V)		4.75	5	5.5*	V d.c.
Supply current	Display not flashing		15		mA
	Display flashing (average current)		2.5		mA
Input voltage (Vin to 0V)	Vref not connected	0		2.5	V d.c.
	Vref connected to +5.0V	0		5.0	V d.c.
Internal resolution	Vref not connected		2.5		V d.c.
	Vref connected to +5.0V		5.0		V d.c.
Accuracy (overall error) *			0.4		%
Temperature stability			100		ppm/°C
Hysteresis			2		%
Sample rate			4		samples/sec
Operating temperature range		-30		50	°C
Input impedance (unscaled input)			1		kOhm
Output high voltage (pins 5, 6, 7)		V+ -0.7		V+	V d.c.
Output high current (pins 5, 6, 7)				1	mA
Output low voltage (pins 5, 6, 7)		0		0.6	V d.c.
Output low current (pins 5, 6, 7)				1	mA

* Operation of the indicator beyond the maximum supply voltage rating may cause permanent damage to the indicator