DC-LVDT Indicator, Single Channel (DMI-D1 Series) Harold G Schaevitz Industries LLC

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.

Order Standard Product DMI-D1-810 here This unit features control relays, analog outputs and alarms.

Special product ordering is available. Please call the factory for more information on delivery and pricing 248-417-2622

GENERAL SPECIFICATIONS
Tech Bulletin

General

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

Power Supplies

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

Environmental

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).

Mechanical

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.

Approvals

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

LVDT Input

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.

Relay Output Modules

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.

LVDT Position Sensors by