AC-LVDT Indicator, Single Channel (DMI-A1 Series)

Description

The DMI-D1 Series DC LVDT Indicator is an accurate, high performance, programmable single channel DC LVDT indicator that delivers precise measurement for applications using DC LVDT (Linear Variable Differential Transformer) inputs. The 5-digit alphanumeric LED display provides easy to follow setup prompts for all LVDT parameters using the intuitive text configuration menus.

Used in conjunction with DC LVDTs, DMI-D1 Series Indicators make up a comprehensive, reliable, measurement system. The combination can be applied to a wide variety of demanding measurement applications, such as in process gaging in automated assembly machinery, differential measurements in thickness gaging, and other comparative measurements. Utilize the unit's optional relays and you have an economical solution when you need control functions for comparative and direct measurements in smaller automated systems.

The DMI-D1 Series DC LVDT Indicator is designed to be upgradeable for expansion of capabilities. You can order this as an indicator only and if you decide later to add an option like RS-232, to utilize the remote utility software package or to add communication to data acquisition software, it can be done at the factory.

The DC LVDT input module of the DMI-D1 Series DC LVDT Indicator is designed to drive and condition the signal from an LVDT transducer. The module contains 2 high-speed micro controllers and a 16-bit A/D converter. It communicates with the selected controller internally via the .2C data bus.

The 16-bit A/D converter has over 130 dB noise rejection at the excitation frequencies and is capable of 40 Hz averaged output on 45 samples. Scrolling text menus provide quick access to a range of configuration modes for easy DC LVDT application setup.

If you require 2 sensor channels we also offer a dual channel LVDT Indicator Controller model number DMC-D2.

Features

115-240 VAC operation

Four independently
programmable set points

Supports all standard LVDTs

Optional User Selectable Features

0-10VDC analog output

4-20 mA or 0-20 mA sourcing

24VDC operation

Four 5.0A relays and 115 VAC operation

Four 5.0A relays and 24 VAC operation

RS-232 serial output

Ethernet

Free Software for meter configuration and LVDT calibration (with RS-232 option)

Digital Display: 7-segment, 0.56” (14.2 mm) LEDs.
Display Color: Red.
Display Range: -19999 to 99999.
Display Selectable Update Rate: 10 times per second.
Display Dimming: 8 brightness levels. Front panel selectable.
Polarity: Assumed positive. Displays – negative.
Annunciators: 6 red LEDs on front panel.
Front Panel Controls: PROGRAM, UP, and DOWN buttons

Standard high voltage AC power supply, 115 V AC,
or
optional low voltage DC power supply, 24 V DC.

Operating Temperature: 0 to 50°C (32°F to 122°F).
Storage Temperature: -20°C to 70°C (-4°F to 158°F).
Relative Humidity: 95% (non-condensing) at 40°C (104°F).

Case Dimensions: 1/8 DIN, 96x48 mm (3.78” x 1.89”).
Case Depth: 137 mm maximum (5.39”).
Case Material: 94V-0 UL rated self-extinguishing polycarbonate.
Weight: 11.5 oz (0.79 lbs), 14 oz (0.96 lbs) when packed.

CE: As per EN-61000-3/4/6 and EN-61010-1

Excitation Voltage : 24 V DC.
Temperature Coefficient: ± 50 ppm/° C of full scale (typical).
LVDT Input: 1M input impedance.
Analog to Digital: Dual scope 17 bipolar converter.
Output Rate: 10 Hz averaged response output.
Line Frequency Rejection: 50 or 60 Hz noise rejection.

Plug into carrier board from rear:

1. Four Relay Module: Available with four 5 A Form A Relays*.

*Form A Relay Specifications: 5 A 240 V AC. Isolation 3000 V. UL and CSA listed.

Ordering Information

Optional power, analog output, communication and calibration configuration suffixes

• -2xx for operating on 24 V DC
• -9xx for 4 5A relays and 24 V DC operation
• -8xx for 4 5A relays and 115 V AC operation
• -x1x 0-10VDC analog output
• -x3x 4-20 mA sourcing
• -xx1 for serial ASCII RS-232
• -xx2 for Ethernet communications
• For specifications on other Macro Sensors LVDT signal conditioners, please visit the signal conditioner page.

Example: DMI-D1-212 is equipped with the following: 1. -2xx 24 V DC Operation; 2. -x1x 0-10 V DC output; 3. -xx2 Ethernet Communication


click the image for an enlarged view Instruction Manual Tech Bulletin Software: Digital Controller Configuration Utility Ethernet FAQ	Description The DMI-D1 Series DC LVDT Indicator is an accurate, high performance, programmable single channel DC LVDT indicator that delivers precise measurement for applications using DC LVDT (Linear Variable Differential Transformer) inputs. The 5-digit alphanumeric LED display provides easy to follow setup prompts for all LVDT parameters using the intuitive text configuration menus. Used in conjunction with DC LVDTs, DMI-D1 Series Indicators make up a comprehensive, reliable, measurement system. The combination can be applied to a wide variety of demanding measurement applications, such as in process gaging in automated assembly machinery, differential measurements in thickness gaging, and other comparative measurements. Utilize the unit's optional relays and you have an economical solution when you need control functions for comparative and direct measurements in smaller automated systems. The DMI-D1 Series DC LVDT Indicator is designed to be upgradeable for expansion of capabilities. You can order this as an indicator only and if you decide later to add an option like RS-232, to utilize the remote utility software package or to add communication to data acquisition software, it can be done at the factory. The DC LVDT input module of the DMI-D1 Series DC LVDT Indicator is designed to drive and condition the signal from an LVDT transducer. The module contains 2 high-speed micro controllers and a 16-bit A/D converter. It communicates with the selected controller internally via the .2C data bus. The 16-bit A/D converter has over 130 dB noise rejection at the excitation frequencies and is capable of 40 Hz averaged output on 45 samples. Scrolling text menus provide quick access to a range of configuration modes for easy DC LVDT application setup. If you require 2 sensor channels we also offer a dual channel LVDT Indicator Controller model number DMC-D2.	Features 115-240 VAC operation Four independently programmable set points Supports all standard LVDTs Optional User Selectable Features 0-10VDC analog output 4-20 mA or 0-20 mA sourcing 24VDC operation Four 5.0A relays and 115 VAC operation Four 5.0A relays and 24 VAC operation RS-232 serial output Ethernet Free Software for meter configuration and LVDT calibration (with RS-232 option)