SP 5-1200-BL LASCAR, SP 5-1200-BL Datasheet - Page 3

• Manufacturer Part Number: SP 5-1200-BL
• Description: Loop Powered Meter
• Manufacturer: LASCAR

Specifications of SP 5-1200-BL

• No. Of Digits / Alpha: 3
• Meter Function: DC Voltmeter
• Meter Range: 4V To 25V
• Digit Height: 18mm
• Operating Temperature Range: 0°C To +50°C
• Meter Signal Input: Voltage
• Character Size: 0.7"
• Meter Output: Voltage
• Lead Free Status / RoHS Status: na

SP 5-1200-BL
Specifications liable to change without prior warning
APPLICATIONS
SCREW TERMINAL FUNCTIONS
V+
0V
BL+
BL-
SCALING
This module cannot be re-scaled for other voltage or current scales.
Measuring a voltage in the range 4 to 25V d.c.
Powering the LED backlighting from the voltage being
measured. The additional load of the backlighting on the
voltage being measured
The voltage regulator may require a heatsink to limit its
temperature rise. Ensure that the maximum input specification
of the voltage regulator considerable exceeds the maximum
peak voltage that can be experienced on the supply line being
monitored.
Positive power supply to the meter / voltage being measured.
0V power supply to the meter / voltage being measured.
Positive power supply to the LED backlighting.
Negative power supply to the LED backlighting.
When the jumper link is placed over both pins, located next to the screw terminals, this connects the 0V of the LED
backlighting to the 0V of the signal being measured. This allows for 3-wire operation of the module.
This connection should only be made if both power supplies can share a common 0V line.
V+
0V
V+
0V
+4 to +25Vd.c.
0V
+7.5 to +25Vd.c.
may cause this voltage to drop.
BL+
BL-
O/P
7805*
www.lascarelectronics.com
0V
I/P
* High input
SP 5-1200-BL
voltage version
S1
+4 to +25Vd.c.
Powering the LED backlighting from a separate supply.
Close switch S1 to turn on the backlighting.
Note: - add a series resistor R if the backlighting
Issue 5
supply voltage is higher than 5V d.c.
0V
January/2007
V+
0V
2-Wire Signal-Powered Meter
BL+
BL-
R
S1
M.C.
V
0V
BL
No: 695 - Page 3 of 3
Applies to SP 5-1200/2
R =
R is not needed
if VBL=5V (then
connect BL- to 0V)
VBL - 5V
0.05