Features

The SP 400-BLUE features a 200mV d.c. measurement range with auto-zero and auto-polarity. The module has a low battery warning and decimal points are user selectable. The SP 400-BLUE features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. Blue LED backlighting ensures excellent readability under low light conditions. The module is easily fitted into the panel, using the fixing clip provided. The module's low cost means it will suit high and low volume applications. The design of the panel meter's housing ensures splash proofing using the supplied seal.

This is a popular part, normally stocked in high quantity and suitable for new designs.

Specification		Min.	Typ.	Max.	Unit
Accuracy (overall error) *			0.1		% (±1 count)
Linearity				±1	count
Sample rate			2.5		samples/sec
Operating temperature range		0		50	°C
Temperature stability			100		ppm/°C
Supply voltage	V+ to GND configuration	3.5	5.0	7.5**	V d.c.
	V+ to V-	6.0	9.0	15.0**	V d.c.
Supply current	V+ to GND configuration		350		uA
	V+ to V-		175		uA
Backlight supply voltage			7.5***	8.0	V d.c.
Backlight supply current @ 7.5V d.c.			9		mA
Input leakage current (Vin=0V)			1	10	pA

* To ensure maximum accuracy, re-calibrate periodically
** Operation of the meter beyond maximum supply voltage rating may cause permanent damage to the meter.
*** An external series resistor is required above 7.5V, see Application section of the data sheet
**** This specification linearly derates to 5mA @ 50°C