• YOKOGAWA

280 Series slim, Stackable Edgewise Meters
(Great space Savers!!!)

1 ½", 2 ½" and 3 ½" extra flat Edgewise Meters
Reliable tautband or pivot & Jewell movement
(basic accuracy of ±2%)

Features

  • Accuracy: ±2%
  • ± 3% AC – rectifier type (60 Hz sine wave)
  • Full range of inputs
  • Tracking: ± 1 1/2% DC
  • Repeatability: ± 0.5% DC and rectifier type
  • Orientation: Horizontal, Vertical or specified mounting angle
  • Slim Compact design provides the answer to "space" problems
  • They can stand alone or be stacked in space-saving clusters
  • UL models available
  • ****Optional illumination available for model 287 and 288
    • AC & DC Voltmeters
    • AC & DC Ammeters, shunt rated or self contained
    • Expanded scale meter
    • Process (4-20 mADC)
    • Frequency Meters

Applications

  • Standard panel applications
  • Instrumentation – manufacturing component
  • For space challenged panels
  • When it is necessary to quickly view multiple meter readings in a control room situation. (trending)

Description

The 280 Series were designed to handle applications where panel space is at a premium. They can be mounted horizontally or vertically and meet ANSI C39.1. Unlike most edgewise meters, the 280 series provides an accuracy of ±2% of full scale in DC and ±3% for AC.

The thin element design still provides the maximum performance in the smallest of spaces. Available in 1 1/2" to 3 1/2" sizes for vertical or horizontal mounting. They can stand alone or be stacked in space-saving clusters. Built-in magnetic shielding prevents interference among meters and removes the burden of special calibration.

 
  • Literature
  • Specifications
Model: Yokogawa 286 Series 1 /12" | Model 287 Series 2 1/2" | Model 288 3 1/2 " |
Display
Scaling: Customized to any scaling desired, from linear to specialized Cos Ø, square root distributions, with color applications for visual emphasis and to any desired engineering units.
Specific Accuracies
Basic Accuracy: ±2.0% of full scale basic accuracy class.
Rectifier Type Meters: ±3% of full scale basic accuracy class.
Zero Suppressed Meters: Errors at 20% suppression = ±3% of end-scale
Higher Accuracy: 1% of Full scale or better
General specifications:
Position of use: Horizontal (scale) standard, Vertical
or to specified angle or position
Full scale deflection angle: 53 °
Full scale length: Size Arc Length
11⁄2” 1.93"
21⁄2” 1.93"
31⁄2” 2.70”
Movement: Taut Band
The absence of friction resulting from this permits greater sensitivities and provides more rugged meters . Common failures of conventional meters subjected to shock testing are cracked jewels and/or blunted pivots.
Pointer: Standard Red
Case and Cover: Clear plastic
Dielectric (Hi-pot): 1500 VRMS for 1-1/2” and 2-1/2” sizes. 2600 VRMS for 3-1/2” size.
Overload rating:

DC Voltmeters — 20% momentary and sustained; DC ammeters (momentary) — 10 times the rated current for 10 consecutive intervals of .5 second with 1 minute intervals between successive applications; DC ammeters (sustained) — 20% for 6 hours

Overshoot: 25% (max.) for 1-1/2” size, 40% (max.) for 2-1/2” and 3-1/2” sizes
Response time: 3 seconds max for µA meters
2 seconds (max.) for mA, A, mV, & V meters
Environment:
Operating Temp.: 0 to 40°C (32 to 104°F)
Storage Temp: -10 to 50°C (14 to 50°F)
Relative Humidity: 95% (non condensing)
Bezel and Mounting Hardware: Included with meter