SM-Series
General Features
The SM-35MV is one of Texmate's new SM-series meter range.
This range, which includes meters with LCD and LED displays, offers many unique features designed to simplify installation, calibration and scaling. All SM-series meters are pin-compatible. This allows different versions of SM meters to be interchanged within the same application without necessitating wiring or panel cutout changes.
All SM-series meters are 5 V DC powered with bipolar singleended inputs. The meters feature Display Hold, Display Test and Auto-Polarity indication. The polarity indication may be disabled or reversed by repositioning jumper clips on internal header pins. The SM-series of meters are designed to be user scalable to almost any engineering unit of readout. On-site scaling and recalibration is facilitated by multi-turn potentiometers that provide continuous fine and coarse adjustment within each of the three header-programmable full scale ranges.
The SM-35MV (LED display) and SM-35XMV (LCD display) are specially designed for low voltage inputs and provide three header-programmable input ranges of 20 mV, 200 mV, and 2 V full scale. Both the SM-35XMV and SM-35MV have zero-offset adjustment potentiometers as a standard feature. The three ranges provided with the SM-35X (LCD display ) and the SM-
35 (LED display) are 2 V, 20 V, and 200 V full scale and both of these meters can be ordered with an optional zero-offset adjustment potentiometer for use in zero-offset application (e.g.
1-5 V).
Typical Application Connections
DC VOLTMETER
The SM-Series is shipped in a standard Slim Bezel case. The Slim Bezel case is compatible with the CM, SP, PM, & TM Series of meters. The SM-Series can be ordered in End Mount cases for twin mounting or combinations of multiple center mount cases and two end mount cases for stack mounting.
BEZEL
Input Configuration:........Single-ended, with provision to offset the zero
of the reading displayed
Input Impedance:............1M minimum
Full Scale Ranges:.........20 mV DC 200 mV DC 2 V DC (Standard
Range) (All ranges are header selectable)
A/D Converter:................12 Bit Dual Slope
Accuracy:........................(0.05% of reading + 2 digits)
Temp Coefficient:...........100ppm/C typical
Warmup Time:.................One minute to specified accuracy
Conversion Rate:.............3 readings per second
Display:.............................0.56" High Efficiency LED "Display Hold"
feature
Decimal Selection:...........User programmable to 3 positions
Over-range Indication:...When input exceeds full scale on any range being used, the most significant 1 digit and + or symbol is displayed with all other digits blanked.
Power Supply:..................+4.5 to +5.25V DC at 225mA
Operating Temperature:...0 C to +50 C
DC AMMETER (Requires external shunt)
Storage Temperature:.....-20 to +70 C
Relative Humidity:..........95% (non-condensing)
Case Dimensions:...........Bezel (2.755W x 1.170H) 69.68mmW x 29.72mmH. Depth behind bezel (3.315) 84.2mm plus (0.685) 17.4mm for connector.
Weight:..............................88 gms (3.1 oz)
143 gms (5 oz) when packed
SM-Series LED Displays SM-Series LCD Displays
SM-35..................3.5 digit Red LED, 2/20/200VDC, 5VDC Pwr SM-35MV............3.5 digit Red LED, 0.02/0.2/2VDC, 5VDC Pwr
SM-35X................3.5 digit LCD, 2/20/200VDC, 5VDC Pwr SM-35XMV............3.5 digit LCD, 0.02/0.2/2VDC, 5VDC Pwr
December 5, 2005 SM-35MV Data Sheet (SM02)
Texmate, Inc. Tel. (760) 598-9899
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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.