SP200 Martel Electronics, SP200 Datasheet - Page 4

• Manufacturer Part Number: SP200
• Description: LCD DPM 200MV 3.5 DIGIT
• Manufacturer: Martel Electronics
• Series: SPr
• Type: Voltmeterr

Specifications of SP200

• Measuring Range: 200mVDC
• Display Style: Black Characters, Green Background
• Display Type: LCD
• Display Face Size: 1.38" L x 0.88" W (35.1 x 22.4mm)
• Display Digits: 3.5
• Display Digits - Height: 0.384" (9.75mm)
• Backlight: Green
• Mounting Type: Panel Mount
• Termination: PC Pins
• Voltage - Supply: 3.5 ~ 5.25V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 227-1051

SP 200
Specifications liable to change without prior warning
±200mV
SCALING
Two resistors Ra and Rb
may be used to alter the
full scale reading (FSR) of
the meter - see table. The
meter will have to be re-
calibrated by adjusting the
calibration potentiometer
on the rear of the module.
APPLICATIONS
Do not connect more than one meter to the same power supply if the meters cannot use the same signal
ground. Taking any input beyond the power supply rails will damage the meter.
Measuring a single ended input
voltage referenced to supply, i.e. the
input voltage and the meter's power
supply share the same 0V rail.
V
+
-
supply
220nF
12
11
Measuring supply voltage and current to a load.
Display DP1, DP2 or DP3 by connecting to GND, as required.
INH
INL
7805
GND
V+
1
3
RO
V+
RI
+5V
10uF
470nF
0V
8
7
10
*Ensure that Ra is rated for high voltage use.
8
7
Voltage
Current
Vin
I
RO
RI
COM
Measuring an input voltage referenced to
a floating supply, i.e. the input voltage
and the meter's power supply are isolated
from each other.
in
±200mV
GND
www.lascarelectronics.com
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
V+
+
1
3
-
INH
INL
2000V*
200mA
200 A
20mA
200V
2mA
20V
FSR
2V
11
12
SP 200
S
1
10
12
11
V
A
910k
INH
INL
COM
1M
1M
1M
Ra
0R
0R
0R
0R
GND
Ra=1M
Rb=1k
V+
Shunt
Issue 3
1
3
Rs
RO
100R
100R
100k
10R
V+
RI
10k
Rb
1k
1k
1R
3½ Digit Backlit LCD Voltmeter Module
0V
8
7
Load
October/2001
I
4-20mA
Measuring a 4-20mA loop current.
The meter's power supply must be isolated
from the 4-20mA current loop.
Vin or in
S selects between voltage and current display.
Ra and Rb shown scaled for 200V .
Rs = 200mV (e.g. 0.1
R
1
L
I
+
I-
+
-
R= Reading at 20mA
I
220k
I
Ra
5k
R
M.C.
160
Rb
Set Zero
10
12
12
11
11
for 2A range)
INH
INL
COM
INH
INL
Applies to SP 200/1
SP 200
GND
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V+
FSR
1
3
RO
RI
V+
Page 4 of 4
Page 4 of 4
0V
8
7