Dynalco LMD-120A Current Loop- PoweredDigital Indicator
LMD-120A面板仪表（4-20mA回路供电）
面板仪表（4-20mA回路供电）
LMD-120A Panel Meter电流回路供电数字指示器

使用方便。由4–20 mA信号回路输入供电；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电流回路供电数字指示器技术资料下载

LMD-120A描述

仪表：3?或4?数字LCD，4-20 mA电流回路供电指示器
显示压力，温度或任何其他与4-20 mA输入成比例的变量。
直径3-3 / 8英寸的外壳坚固，密封和防潮，适用于室内或室外应用。
现场可调。无需外部电源。
批准了CSA I类，1区，A，B，C和D组。

特征

*第三方认证：CSA：（LR45322）I类，第1部分，A，B，C和D组。本质安全：通过通过CSA认证的单通道齐纳势垒连接时，额定最大28.5伏，最小300Ω。

- 仪表：3个半数字或4个半数字LCD，4-20 mA电流回路供电指示器
METER: 3?- or 4?- digit LCD, 4-20 mA current loop-powered indicator

- 显示与4-20 mA输入成比例的压力、温度或任何其他变量。
Displays pressure, temperature, or any other variable proportional to the 4-20 mA input.

- 3-3/8英寸的外壳坚固耐用，密封性好，适用于室内或室外应用。
3-3/8 inch diameter housing is rugged, sealed, and spray- proof for indoor or outdoor applications.

- 现场可调。无需外部电源。
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

规格参数：

- 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