SP-Series
3 1/2 DIGIT with 0.48 LCD
The SP-35X is a signal pow ered meter designed for ease-ofuse. The 2 wire meter is powered from the signal, and does not require a separate power supply. This meter has AutoPolarity indication. The polarity in di ca tion may be disabled or reversed by repositioning jumper clips on internal header pins.
Each SP-Series meter is provided with a set of screw terminal blocks that can accept either bare wire or crimp-on 0.110" x 0.032" insulated disconnects. The SP-Series pin out is designed so that a standard PCB edge connector can also be used instead of the screw terminal blocks if desired.
DC Volts Single-ended measurement with a Resolution of 100 milliVolt.
Input Configuration:.......Single-ended
Input Impedance:............For inputs above 100V........50K to 60K 40V to 100VDC inputs...... 30K to 50K 3.5V to 40V inputs..............10K to 30K
Full Scale Ranges:.........199.90 V DC last digit Dummy Zero.
Minimum voltage that can be measured is approx. 3.5V DC. Recommended minimum input is 5V DC
A/D Converter:................12 bit dual slope A/D converter
Accuracy:.........................(0.05% of reading + 2 counts)
Temperature Coefficient:..100ppm/C typical
Warm Up Time:...............10 seconds to specified accuracy
Conversion Rate:.............3 readings per second
Display:.............................0.48" Liquid Crystal Display (LC D)
Decimal Selection:..........None Fixed at 1XX.X
Positive Overrange:........1 (MSD) is displayed with all other digits
blank.
Negative Overrange:.......1 (MSD) and - sign are displayed with all
other digits blank.
DC Volts Differential measurement with a Resolution of 100 milliVolt.
Power Supply:.................No power supply needed. Powered from the input signal
Operating Temperature:...0 C to +60 C
Storage Temperature:.....-20 C to +70 C
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 0z) when packed
SP-35X............... 3.5 digit LCD, Signal Powered by DC voltage
SP-35XMV........... 3.5 digit LCD DCMV Input, 10-100VDC or 18-36VAC Pwr
Page 1
SP-35X
Span Adjust
Pot
Connector Pinouts
The SP-35X interconnects by means of TB-1 screw terminal clips, which are provided at no cost with the meter. A PCB edge connector (CN-L10) with 0.156 pitch and dual 10 pin rows may also be used. Texmates proprietary PUSH-ON Connector may also be used. Connector options are shown on page 3.
Span(cid:27)
Adjust
Rear View
Top View
HI LO
Rollover
Adjust Pot
Polarity
Header
ROLLOVER Adjust Potentiometer
Zero Trim (cid:23)
Potentiometer
The single turn Rollover Adjust Pot is accessed by removing the meter from the case. It is adjusted at the factory and usually does not need to be readjusted
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 20% of the input signal range.
Polarity Display Header
This header allows the Polarity indication to be displayed normally, displayed reversed or to be disabled completely.
Pin 1 - Input Hi: This is the signal high input to the meter.
Voltages from 3.5V to 199.9V DC may be measured.
Pin 2 - Input Lo: This is the signal low input to the meter.
Voltages from 3.5V to 199.9V DC may be measured.
Page 2
1) Apply a known DC volt to the meter. Typically, the calibra-
tion voltage used is +190V DC.
2) Adjust the span pot so that the meter displays the correct
reading (+190.0 in this example).
3) Reverse the input connections to the meter so that a negative input is being applied (190V DC in this example).
4) Adjust the Rollover Pot so that the meter reads correctly
(190.0 in this example).
5) The meter is now calibrated and ready for use.
The SP-35X, when used with its companion meter SP-35XMV, 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.
SHUNT
50 mV or
100 mV
*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
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-35X meter.
Order part no. CN-L10.
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.
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
Part Number: CN-PUSH/SP
Page 3
PANEL CUTOUT
FRONT VIEW
SIDE VIEW
TOP VIEW
option metal
screw mounting clip
When extra panel mounting tightness is required, optional Screw Mounting Clips can be purchased seperately and attach to the sliding mounting side clips
Standard Options for this Model Number
Special Options and Accessories
Part Number
4BASIC MODEL NUMBER
Description
SP-35X.......3.5 digit LCD, Signal Powered by DC voltage.....
Page 4
Part Number
Description
List
4SPECIAL OPTIONS (Specify Inputs & Req. Reading) ZRS-CM.....Non-Std Scale Changes, 3.5 Digit Meters........
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
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.