| Display |
| Scaling: |
Flat Arc Curve Syle, 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. |
| Expanded Scale Voltmeters: |
0.5% of full scale |
| Frequency Meters: |
± .15Hz @45-55Hz and 55-65Hz, ±0.093Hz @
58-62Hz, ±1.5Hz @350-450Hz |
| Zero Suppressed Meters: |
Errors at 20% suppression = ±3%
of end-scale |
| Higher Accuracy: |
1% of Full scale or better |
| |
| Position of use: |
Vertical (scale) standard
or to specified angle or position |
| Full scale deflection angle: |
95 °-All DC meters
90°- All AC Iron Vane |
| Full scale length: |
Size |
DC Meters |
AC Meters |
| 11⁄2” |
1.66” |
------ |
| 21⁄2” |
2.29” |
2.15” |
| 31⁄2” |
2.85” |
2.70” |
| 41⁄2” |
4.01” |
3.80” |
| Movement: |
Taut Band |
The absence of friction permits greater sensitivities, this rugged Yokogawa band is ideal for applications that require quick respose, repeatability or experience vibration.
because there are no moving parts, common
failures of conventional pivot and jewel meters such as
cracked jewels and/or
blunt pivots are no longer a problem. |
| Pivot and Jewel |
| In this design the coil and pointer are
supported by polished steel pivots at each
end which fit into jewel bearings. Pivot and
jewel meters are recommended for high vibration
environments. The
mechanism’s inherent stability and strengthprovide accuracy, repeatability and preformance are almost equal
to the taut-band mechanism. However, hardened jewels and pivot points eventually wear out, causing repeatability and friction problems towards the end of the meter's life. |
| Case: |
ABS plastic, Black |
| Cover: |
ABS or polycarbonate cover and window. |
| Insulation Level: |
All meters (except 11⁄2”), 2600
Vrms Hi-pot, 11⁄2”-1500 Vrms Hi-pot. |
| Overload rating: |
Voltmeters (AC and DC) - 50%
momentary, 20% sustained. Ammeters
(AC and DC) momentary; 10 times the
rated current for 10 consecutive intervals
of .5 second with a 1 minute interval
between successive applications; sustained:
20% for six hours. |
| Burden Data: |
AC Ammeter 5 amps @ 60 Hz, 0.5VA, Max. .5 Power factor lagging, AC voltmeter - unity power factor. |
| Severe-duty meters: |
Conform to CSA or UL 1437 requirements in 2-1/2” - 4-1/2” sizes. |
| Response time: |
3 seconds (Max.) - Microammeters
2 seconds (Max.) - All other DC ratings
2.5 seconds (Max.) - All AC ratings
Maximum 40% overshoot |
| General: |
| Operating Temp.: |
0 to 40°C (32 to 104°F) |
| Storage Temp: |
-10 to 50°C (14 to 50°F) |
| Extreme temperature range: |
-20°C to 65°C (-4 to 149°F)
Tropicalized or IP54 sealed units available |
| Relative Humidity: |
95% (non condensing) |
| Dimensions |
| 1 1/2" Meters |
Download PDF File |
| 2 1/2" Meters |
Download PDF File |
| 3 1/2" Meters |
Download PDF File |
| 4 1/2" Meters |
Download PDF File |
| Bezel Dimensions |
Download PDF File |
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