SP-Series
3 1/2 DIGIT with 0.48 LCD
The SP-35XMV is a compact 3 1/2 digit, 4 wire DC millivolt meter. By connecting across a 50 mV/100 mV current shunt the meter can be user calibrated to read DC current. An internal header selects HI side or LO side shunt configuration. A wide range power supply allows the meter to be connected to most common battery powered systems.
Input Configuration:........Differential. Header selectable for HI side
or LO side shunt configurations.
Input Impedance:............. 500K
Full Scale Ranges:.......... 1999A or 199.9mV
A/D Converter:.................12 Bit Dual Slope A/D Converter
Accuracy:.........................(0.05% of reading + 2 digits)
Temperature Coefficient: 100ppm/C Typical
Warm Up Time:................10 seconds to specified accuracy.
Conversion Rate:.............3 reading per second
Display:.............................0.48" 3 1/2 Digit Liquid Crystal Display
(LCD)
Decimal Selection:..........User Selectable
Positive Overrange:.......1 (MSD) is displayed with all other digits
blank
Negative Overrange:......1 (MSD) and - sign are displayed with all
other digits blank
Power Supply (std):......... 20 to 100V DC or 18 to 36V AC
Operating Temperature:..0C to 60C
Storage Temperature:.....0C to 70C
Relative Humidity:...........95% (non condensing)
Case Dimensions:........... Bezel 2.752 x 1.165 (69.9 x 29.6mm) Depth behind Bezel 3.33(84.5mm) plus 0.662 (16.82mm) for connector
Weight:.............................143 gms (5 oz) when packed
SP-Series, low cost meters signal power for polarity indication
SP-35X............... 3.5 digit LCD, Signal Powered by DC voltage
SP-35XMV........... 3.5 digit LCD DCMV Input, 20-100VDC or 18-36VAC Pwr
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SP-35XMV
Connector Pinouts
The Texmate SP-35XMV are connectable using the TB-KIT screw terminal blocks provided with the meter. For greatest convenience, order a Texmate Push-On screw terminal connector. Alternatively, a pcb edge connector can be used.(see connector options on page 3)
Zero(cid:27)
Adjust
Span(cid:27)
Adjust
Rear View
Top View
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Span Pot
Zero Pot
Shunt
Configuration
Header
Polarity Header
SHUNT CONFIGURATION HEADER
Allows the meter to be configured for HI side or LO side shunts.
If one end of the shunt is connected to the negative terminal of the battery, the configuration is known as a LO side shunt. This is true for both positive ground and negative ground circuits. For this configuration, insert the jumper clip in the LO side position.
If one end of the shunt is connected to the positive terminal of the battery, the configuration is known as a HI side shunt. This is true for both positive ground and negative ground circuits. For this configuration, insert the jumper clip in the HI side position.
SPAN Potentiometer (Pot)
The 15 turn SPAN pot is always on the left side (as viewed from the back of the meter). Typical adjustment is 100% of the input signal range.
ZERO Potentiometer (Pot)
The ZERO pot is always to the right of the SPAN pot (as viewed from the back of the meter). Typically it enables the displayed reading to be offset 1000 counts.
Polarity Display Header
This header allows the Polarity indication to be displayed normally, displayed reversed or to be disabled completely.
To Measure Amps with an External Shunt 1) Connect up the SP-35XMV meter as per the appropriate connection diagram. Be sure to select the correct LO side or HI side position on the internal Shunt Configuration Header.
2) With zero current flowing through the Shunt, adjust the Zero
Pot so that the display reads 000.
3) Pass a known current through the shunt and adjust the
SPAN pot for the desired reading.
4) If decimals or descriptors are required, position jumper clips
on the Decimal and Descriptors Header.
5) The SP-35XMV is now calibrated and ready to use.
To Measure Millivolts
1) Select the LO side position on the internal Shunt
Configuration Header and the 1XX.X Decimal point.
2) With zero input, adjust the Zero Pot so the display reads
000.
3) With a known input in the 200mV range adjust the SPAN
pot for the desired reading.
4) The SP-35XMV is now calibrated and ready to use as a
200mV DC Millivolt meter.
The SP-35XMV, when used with its companion meter SP-35X, is an elegant solution to the problem of measuring and displaying voltage and current in DC powered systems. Our customers have used this combination of meters in DC power supplies, DC generators and in battery back-up systems.
Features such as the low current consumption, wide supply range, large 0.8 display, built in V DC and A DC descriptors, simple connections and user friendly re-scaling to match shunts from 50 mV to 100 mV have made the SP-35X and SP-35XMV the choice of OEMs worldwide.
*Not Included
Texmates individual screw ter mi nal blocks offer a convenient al ter na tive to edge connectors for many ap pli ca tions, allowing com plete in stal la tion, con figu ra tion and calibration with out the need for soldering.
Slide each terminal block over the PCB until the hole aligns.
Insert the re tain ing screw to secure.
Each kit includes: 3 plastic blocks with metal contacts, 4 screws with spade connectors, 1 metal contact and 3 quick disconnects.
Part Number: TB-KIT
Push-On Screw Terminals
They provide the greatest convenience and ease of use
Texmates exclusive optional Push-On Connectors combine an edge card connector and a 10 position screw terminal block.
Push-On Connectors are ordered preconfigured for each specific power supply voltage and each optional power supply available for the SP-Series.
Part Number: CN-PUSH/SP
Optional PCB Edge Connector PCB Edge Connector
A standard 20-pin edge con nec tor (two rows of 10 pins on 0.156" centers) may also be used to connect the SP-35XMV meter. Order part no. CN-L10.
SHUNT
50 mV or
100 mV
The SP-35X measures DC voltage up to 199.9V. A companion meter, the SP-35XMV measures DC current. The two meters combined in stacking cases are ideal for voltage and current measurements in battery powered systems. To simplify the installation when used together, specify the stackable case option to mount both meters in a single cutout.
P.N.: EM-CASCLRTOP & EM-CASCLRBTM
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PANEL CUTOUT
FRONT VIEW
SIDE VIEW
TOP VIEW
When extra panel mounting tightness is required, optional Screw Mounting Clips can be purchased seperately and attach to the sliding mounting side clips
option metal
screw mounting clip
Standard Options for this Model Number
Special Options and Accessories
Part Number
Description
BASIC MODEL NUMBER
SP-35XMV.....3.5 digit LCD DCMV Input, 20-100VDC or 18-36VAC Pwr
Part Number
4SPECIAL OPTIONS (Specify Inputs & Req. Reading) ZRS-CM.....Non-Std Scale Changes, 3.5 Digit Meters........
Description
4ACCESSORIES
CN-L10......Edge Connector with Solder eyelet, 10 Pin Dual...
CN-PUSH/SP.Push-on Screw Terminal Block Conn............
TB-KIT.......Terminal Block Connector Kit (3)...............
EM-CASCLRTOP & EM-CASCLRBTM..................................the stackable case option to mount 2 meters in a single cutout
1934 Kellogg Ave., Carlsbad, CA 92008 Tel: 1-760-598-9899 1-800-TEXMATE Fax: 1-760-598-9828 Email: [email protected]
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Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.