Features
3½ Digit LCD Voltmeter
LED Backlighting
200mV Full Scale Reading
9 Pin SIL Connection
IP65 Splashproof Protection
The SP 400 is a 3½ digit LCD voltmeter with 9mm (0.36") digit height and LED backlighting. It features 200mV d.c. full scale reading, auto-zero and auto-polarity. The meter plugs directly into a 9-way SIL socket and can be fitted into a panel via the fixing clip. Splashproof protection to IP65 is achieved by fitting the seal supplied. Note: This module now features revised backlighting connections.
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 |
4.75 |
5.0 |
*** |
V d.c. |
| Backlight supply current @ 5V d.c. |
|
40 |
80**** |
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 5V, see Application section of the data sheet
**** This specification linearly derates to 50mA @ 50°C
;)
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