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Dynalco LMD-120A Current Loop- PoweredDigital Indicator
LMD-120A面板儀表（4-20mA回路供電）
面板儀表（4-20mA回路供電）
LMD-120A Panel Meter電流回路供電數字指示器

使用方便。由4–20 mA信號回路輸入供電；不需要外部交流或直流。Easy to use. Powered by the 4–20 mA signal loop input; requires no external AC or DC.

DYNALCO LMD-120A Panel Meter電流回路供電數字指示器技術資料下載

LMD-120A描述

儀表：3?或4?數字LCD，4-20 mA電流回路供電指示器
顯示壓力，溫度或任何其他與4-20 mA輸入成比例的變量。
直徑3-3 / 8英寸的外殼堅固，密封和防潮，適用于室內或室外應用。
現場可調。無需外部電源。
批準了CSA I類，1區，A，B，C和D組。

特征

*第三方認證：CSA：（LR45322）I類，第1部分，A，B，C和D組。本質安全：通過通過CSA認證的單通道齊納勢壘連接時，額定最大28.5伏，最小300Ω。

- 儀表：3個半數字或4個半數字LCD，4-20 mA電流回路供電指示器
METER: 3?- or 4?- digit LCD, 4-20 mA current loop-powered indicator

- 顯示與4-20 mA輸入成比例的壓力、溫度或任何其他變量。
Displays pressure, temperature, or any other variable proportional to the 4-20 mA input.

- 3-3/8英寸的外殼堅固耐用，密封性好，適用于室內或室外應用。
3-3/8 inch diameter housing is rugged, sealed, and spray- proof for indoor or outdoor applications.

- 現場可調。無需外部電源。
Field-adjustable. No external power required.

- CSA Class I, Division 1, Groups A, B, C, & D approved.

Product Data Sheet
March 2009 Instrumentation & Controls
LMD-120A Panel Meter
Download Info:
LMD-120A Data Sheet
LMD-120A Manual
LMD-120A Agency Approval

Product Code: LMD-120A

規格參數：

- Standard SAE gasketed and spray-proof case;fits panels with 33/8 in. openings.
- High noise immunity; no power line or supply connections.
- Liquid crystal display (LCD); no outdoor fadeout;0.4 in. high digits.
- Ease of calibration; field-adjustable to any readout range by integral multiturn zero and span potentiometers, decimal point switches,and fifth-digit fixed zero switch.
- Bipolar display; positive and negative readouts.
- Rugged and reliable.

- Input Signal: 4 to 20 mA.
- Display: 3? digits (1 digit resolution) or 4? digits (10-digit resolution), bipolar. The display can be extended to 4? digits by entering a fixed zero in the least significant digit position via a user-selectable switch.

- Span and Zero Adjust: 25-turn potentio-meters permit adjustment of the display to any desired span from 100 up to 2000 units and for any required initial
reading from –1000 to +1000. (4 mA input for initial reading; 20 mA input for maximum indication.)

- Typical calibrations: 0 to +1999, –500 to +500,+800 to +1000, etc. The fifth digit (dummy zero) can be turned on for readouts up to +19990.
- Loop Burden: Less than 2 volts, i.e. 100 Ω at 20mA.
- Environment Temperature: 0oF to +165oF (–18oC to +74oC).

Weight: l lb, maximum (0.454 kg).

2-Year Warranty

LR45322 Class I, Division 1,Groups A, B, C, & D
*See Third-Party Approvals *Third Party Approvals: CSA: (LR45322)
Class I, Division 1, Groups A, B, C, & D.Intrinsically safe: when connected through a CSA-certified single channel Zener barrier rated 28.5 volts maximum, 300 Ω minimum.

- LMD