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Miniature Digital Meters

DLA-30 Digital Meter Series

AC / DC Digital panel meters. Ideal for ship to shore or generator panels.

 

Models and Sizes

DLA-30 Series

 

Features

0-99.9 AC Ammeters: 0-199 DC Amperes; 0-199 DC Voltmeters; 0-285 AC Voltmeter

Frequency, 50 or 60 Hertz

8-40 Volts DC Auxiliary Power

Completely Isolated

Terminal Block connections

Field Adjustable

.56″ Red High Intensity LEDs

 

 


959-969 Digital Panel Meter

The 959 / 969 offer a low cost, high performance replacement for many OEM DPM’s. Optional red or green backlighting available and has multiple mounting options such as window, surface, bezel and snap.

 

 Sizes

959w, 959b, 959s: 13 pins, 0.025″ square on .01″ centers
                               Replacement for existing units
969w, 969b, 969s: 15 pins, 0.025″ square on 0.1″ centers
                               Recommended for new designs

Features:

Digits: 3 1/2 digits (± 1999 counts)

Type: 0.5″ (12mm) high contrast relflective LCD

Decimal Points: 3 position, user selectable

Accuracy: ±(0.1% + 1 count) typical
                 ±(0.1% + 2 counts) typical


DMS-30PC

DMS-30PC Series

The DMS-30PC Series is a broad line of self-contained, fully operational, 3½ digit voltmeters with large, easy-to-read LED displays. The 0.56″(14.2mm) high LED’s are available in a wide variety of colors including red, orange, amber, yellow, green, aqua, blue-green, and super-blue. A high-intensity version of the red display is optional, as are low-power versions of the red, orange, and green displays. The small size (2.17″ x 0.92″ x 0.56″) of DMS-30PC meters is achieved by integrating their display, display drivers, reference circuit, and A/D converter into in a single, epoxy, encapsulated assembly. The device’s 12-pin, component-like, DIP package is both vibration and moisture proof. Each package incorporates a built-in color filter and bezel and is easily mounted in either panels or pc cards. These meters are available in four differential input voltage ranges (±200mV, ±2V, ±20V and ±200V). Input impedance is 1,000 mega ohms for the ±200mV and ±2V inputs and 1 mega ohm for the ±20V and ±200V inputs. CMRR for all devices is 86dB, and inputs are over voltage protected to ±250V. Each meter incorporates an extremely stable, double-regulated reference and is fully calibrated prior to potting. We guarantee outstanding initial accuracy (±1 count) and excellent stability (±0.15 counts/°C). All models operate from a single +5V supply, and the low-power models draw as little as 10mA (50mW total power). A DISPLAY TEST function is standard on each device. For popular applications (4-to-20mA, rms-to-dc conversion, ac line power, J and K thermocouples, etc.), the DMS-30PC Series includes a complete line of optional “plug-on” application boards that conveniently convert your meter into an application-specific instrument.

 

MODELS AND SIZES:

DMS-30PC

 

FEATURES:

Large (0.56″/14.2mm) LED display
8 LED colors
Low-power LED’s optional
Epoxy-encapsulated, 12-pin DIP with built-in color filter and bezel
Miniature size:
2.17″ x 0.92″ x 0.56″(55mm x 23mm x 14mm)
Panel or pc-board mountable
4 differential input voltage ranges
Auto-calibration, ±1 count accuracy
User-selectable decimal point placement
Single +5V supply (60mW for low-power models)
0 to +60°C temperature range
Numerous “plug-on” application boards
Low cost


DMS-30-LCD Series

DMS-30LCD Series

Outstanding features and benefits of Hoyt’s industry leading DMS-20LCD Series of 3½ Digit LCD Panel Meters, DMS-30LCD meters or larger, more easily readable displays at slightly higher power consumptions. Like all DMS Series LCD meters, these miniature (2.17” x 0.92” x 0.43”), epoxy-encapsulated devices oer component-like ease-of-use, outstanding reliability and easy installation in either panels or pc-cards. DMS-30LCD devices operate from a single +5V supply or a 9V battery. Battery-operated units typically draw 350μA and consume a mere 3.2mW. Backlit models are available for low-light applications; though we have found many designers prefer Hoyt’s unique low-power LED meters in those circumstances. Offering 4 optional input voltage ranges (±200mV, ±2V, ±20V or ±200V), DMS-30LCD meters have an extremely user-friendly input structure. They can be used in differential or single-ended modes. Input impedance is a minimum 800k. CMRR is typically 86dB. CMV is ±2V, and inputs are over voltage protected to ±100V. Each meter incorporates an extremely stable, double regulated reference and is fully calibrated at our factory prior to encapsulation. We guarantee outstanding initial accuracy (±1 count) and excellent stability over temperature (±0.15 counts/°C). These extremely rugged meters are moisture and vibration proof and never require adjustment or re-calibration. For popular applications (4-to-20mA, rms-to-dc conversion, ac line power, J and K thermocouples, etc.), the DMS-30LCD Series includes a complete line of “plug-on” application boards that conveniently convert your meter into an application-specific instrument.

MODELS AND SIZES:

DMS-30LCD

 

FEATURES:

Large (0.4″/10.2mm), enhanced-contrast, LCD display
Single +5V supply or 9V battery
Power as low as 3.2mW
Miniature size:
2.17″ x 0.92″ x 0.43″ (55mm x 23mm x 11mm)
Epoxy-encapsulated, 12-pin DIP
Backlit displays optional
4 dierential input voltage ranges
High accuracy, ±1 count (±0.05%)
Autopolarity changeover and overrange indication
User-selectable decimal point placement
Numerous “plug-on” application boards
0 to +60°C temperature range


DMS-20PC-FM

DMS-20PC-FM Series

Hoyt’s new DMS-20PC-FM Series are the world’s smallest, self-powered, ac frequency meters. Simply connect the ac line to the two rear input terminals, and the unit is fully operational with no additional components or auxiliary power required! Two, 50/60Hz models operate over input voltage ranges of 85-140Vac or 170-264Vac. A third, 400Hz model operates over an input voltage range of 85-140Vac. Despite their small size (1.38″ x 0.88″ x 1.0″), DMS-20PC-FM meters feature large 0.40″/10.2mm red LED’s that can be read easily from 15 feet away. An ultra-stable, quartz-crystal-controlled, embedded microcomputer provides accuracies of ±0.1Hz (50/60Hz models) or ±1.0Hz (400Hz model) over the entire operating temperature range of –25 to +60°C. Epoxy encapsulated plastic packages provide excellent protection against the harsh environments normally encountered by emergency backup power generators. DMS-20PC-FM meters are the exact same size as Hoyt’s popular AC Line Voltage Monitors (models DMS-20PC-X-LM).

 

MODELS AND SIZES:

DMS-20PC-FM

 

FEATURES:

 

Self-powered, no external supplies required
3 models: 47.0-99.0Hz (85-140Vac)
47.0-99.0Hz (170-264Vac)
350-450Hz (85-140Vac)
Screw terminals simplify panel mounting
Ideal for emergency power equipment
Small 1.38″ x 0.88″ x 1.0″ packages
Epoxy encapsulated for harsh environments
Large (0.40″/10.2mm) red LED displays


DMS-20PC-4/20 Series

DMS-20PC-4/20 Series

The DMS-20PC-4/20 Series are the world’s first loop-powered digital panel meters with a large, easy-to-read, bright red, LED display. All operating power is derived directly from the loop current itself—no external power supply is required! The large, 0.37″/9.4mm digits exhibit uniform intensity over the entire 4-20mA operating range. Additionally, the total maximum loop voltage drop is only 5V! Users no longer have to settle for difficult-to-read LCD displays in loop-powered applications. Both gain (span) and oset (zero) adjustments are performed with on-board, precision, 20-turn potentiometers. All decimal-point and range-change selections are made on a six position DIP switch featuring vibration-resistant, gold-plated contacts. Unlike competitive meters, there are no jumpers or solder gaps to open or close. Connections to the current loop are made via a reliable, two-position, screw-type terminal block. The DMS-20PC-4/20’s DIP switch and adjustment potentiometers accommodate hundreds of dierent input-current/output-reading combinations. This versatility practically eliminates the need to order more costly, long-lead-time, factory-customized “specials” in applications in which several dierent-range meters are required. An optional bezel assembly, featuring screw fasteners and a rubber seal, simplifies panel mounting and provides excellent resistance to environmental dust and moisture. All these outstanding features combine to make the DMS-20PC-4/20 Series the perfect meters for prototype and OEM 4-20mA current-loop instrumentation.

 

MODELS AND SIZES:

DMS-20PC-4/20

 

FEATURES:

 

Industry’s first loop-powered meter with a large, easy-to-read, LED display!
Self-powered, no external supply required
Unipolar, Bipolar and Positive Reading Models
Large, 0.37″/9.4mm digits
Excellent display intensity
High-quality, 20-turn, span (gain) and zero (oset) adjustments
DIP-switch selectable range and decimal points
Hundreds of input/readout combinations
Vibration-resistant package; Reliable screw-terminal input connections


DMS-20PC-1-LM

DMS-20PC-1-LM Series

Murata Power Solution’s DMS-20PC-1-LM is a component-size, self-contained, low-cost ac voltmeter for true line measurements. It requires no additional components or auxiliary power. Simply plug it into any wall outlet and instantly read voltages from 85 to 264Vac (47-63Hz). The large (0.37″/9.4mm), bright red, blue or green LED display makes the DMS-20PC-1-LM easily readable under any lighting conditions. DMS-20PC-1-LM employs half-wave sinusoidal averaging (rms calibrated) and has a display resolution of 1Vac over its full input range. Packaged in a red-fi lter case with builtin bezel, the meter is fully encapsulated for ruggedness. All units are overvoltage protected to 300Vac. This low-cost meter is ideal for industrial, laboratory, offi ce and fi eld-service applications. Its miniature size is perfect for design into high-end consumer electronics, laboratory instrumentation and other products requiring accurate ac line monitoring

MODELS AND SIZES:

 

DMS-20PC-LM

 

FEATURES:

 

Plugs directly into USA-style wall outlets
Screw terminals for panel mounting
Small 1.38″ x 0.88″ x 1.0″ packages
Large, easy-to-read, red, blue or green LED displays
Fully encapsulated for harsh environments
Half-wave averaging, rms calibrated
UL, CSA and IEC1010-1 certified
Very low cost!


DMS-20PC 0/5 Series

DMS-20PC-0/5 Series

Hoyt’s DMS-20PC-0/5 Series are the world’s smallest, full-featured, 0-5V input process control monitors. Their large, easy-to-read, 0.37″/9.4mm LED displays are available in a choice of 4 LED color/intensity options: standard red, standard green, super-bright red, and low-power red. Two power supply input ranges are also available: the industry-standard +5V and a wide-range +5V to +40V (which typically draws 9mA at +24V). Gain (span) and oset (zero) adjustments are performed with on-board, precision, 20-turn potentiometers. All decimal-point and range-change selections are made on an 8-position, vibration-resistant, gold-plated DIP switch. Unlike competitive meters, there are no jumpers or solder gaps to open or close, and to further enhance reliability, the entire assembly utilizes 100% soldered connections. Both power-supply and input-signal connections are made via reliable screw-type terminal blocks. The DMS-20PC-0/5’s DIP switch and potentiometers accommodate hundreds of input voltage/ output-reading combinations. This practically eliminates the need for more costly, long-lead-time, factory “specials” in applications which use several dierent-range meters. A supplied bezel assembly––featuring metal fasteners and a rubber gasket––simplifies panel mounting and also provides excellent resistance to environmental dust and moisture. All these outstanding features combine to make the DMS-20PC-0/5 the perfect meter for prototype and OEM, 0-5V input, process control monitoring.

 

MODELS AND SIZES:

 

DMS-20PC-0/5

 

FEATURES:

 

Accepts 0-5V and 0-10V inputs
Large, easy-to-read, 0.37″/9.4mm LED display
Choice of 5 LED power/color options
High input impedance, 100k
+5V to +40V model draws 9mA typ.
Miniature size: 1.38″ x 1.25″ x 0.95″
High-quality, 20-turn, span (gain) and zero (offset) adjustments
DIP-switch selectable range and decimal points
Vibration-resistant package; Reliable screw-terminal input connections
Hundreds of different input/readout combinations


DMS-20PC

3½ Digit, LED Display, Digital Panel Voltmeters combine a precision A/D converter; a factory-trimmed, highly stable, voltage reference; and a large (0.37″/9.4mm), easy-to-read LED display in a single package that is only slightly larger than the display itself. Displays are oered in either red, orange, amber, yellow, green or blue colors. High-intensity and low-power (35mW total) red LEDs are also optional. These low-cost meters are fully self-contained and fully functional. Their subminiature (1.38″ x 0.88″ x 0.48″), epoxy-encapsulated cases incorporate built-in color fi lters and bezels; are moisture and vibration proof; and function well in the harshest environments. Their 12-pin, dual-in-line confi guration oers component-like, plug-in convenience and maximum versatility. Operating temperature range is 0 to +60°C. The meters come with one of four, dierential, input voltage ranges: ±200mV, ±2V ±20V or ±200V. Input impedance is a minimum 800k. CMRR is typically 86dB (dc to 60Hz), and CMV is ±2V. Input overvoltage protection (on the non-inverting input) is ±250V. Devices are fully calibrated at the factory to an accuracy of ±1 count (±0.05% of full scale range) and never require calibration or adjustment. A DISPLAY ENABLE function permits the display to be disabled for “power-down” operation. All models have a DISPLAY TEST function. Standard red LED models oer an optional DISPLAY HOLD function. Small size, low cost and adjustment-free reliability make the DMS-20PC Series the best choice for all your 3½ digit, LED, DPM applications.

 

MODELS AND SIZES:

 

DMS-20PC

 

FEATURES:

 

Lowest-cost LED meters
Sub miniature size:
1.38″ x 0.88″ x 0.48″ (35mm x 22mm x 12mm)
Large (0.37″/9.4mm) LED display
Choice of 6 LED colors
High-intensity or low-power (7mA) red LEDs optional
Epoxy-encapsulated, 12-pin DIP package with built-in
color filter and bezel
4 dierential input voltage ranges
Factory calibrated, ±1 count accuracy
Single +5V power supply
User-selectable decimal point placement
DISPLAY ENABLE function for “power-down” mode
DISPLAY TEST and HOLD (optional) functions
0 to +60°C temperature range


DMS-20LCD-2/3-DCM

DMS-20LCD-2/3-DCM

Hoyt’s DMS-20LCD-2/3-DCM, self-powered, +90V and +150V voltage monitors set new standards for quality, performance, size and cost. Simply apply dc power to the two rear terminals and the unit is fully operational—no additional components or connections are required! Their large, 0.37”/9.4mm, LCD displays feature built-in “VDC” annunciators and can be easily read from 10 feet. Two models are available: one for +42Vdc nominal operation (+18.0 to +90.0V range, ‘-2-DCM’), the other for +120Vdc nominal operation (+50.0 to +150.0V range, ‘-3-DCM’). Reverse polarity protection and 0.1V resolution are standard on both models. Like their +12V (‘-0-DCM’) and +24V (‘-1-DCM’) counterparts, DMS-20LCD-2/3-DCM meters utilize a precision analog-to-digital converter and ultra-stable passive components to achieve excellent performance over the wide operating temperature range of 0 to +60°C. A rugged, ABS plastic package provides excellent protection against shock and vibration. DMS-20LCD-DCM’s are the most accurate, LCD-display, dc-voltage monitors available at any price.

 

MODELS AND SIZES:

DMS-20LCD-2/3

 

FEATURES:

Self-powered, 2-wire operation
+18.0 to +90.0Vdc or +50.0 to +150.0Vdc ranges
Ideal for 42V automotive systems and 120V chargers
Reverse polarity protected; 0.1V resolution
Built-in “VDC” annunciator
Large (0.37″/9.4mm) LCD displays
Subminiature 1.38″ x 0.88″ x 0.66″ packages
Rugged, ABS package