Rishabh EQ Series

90° Quadratic (EQ48, EQ72, EQ96 and EQ144)
AC DIN Analog Panel Meters With Moving Iron Movement


  • Full Line of Quadratic 90° arc meters
  • Interchangeable scales
  • Mechanism – Iron vane movement
  • Pivot and Jewel suspension – Rugged – ideal if subjected to vibration
  • Available in 48×48, 72×72, 96×96 and 144x144mm
  • Overload of 120% of rated capacity, continuous
  • Accuracy: DC ±1.5% of full scale
  • Tracking: ± 2% DC
  • Overshoot: 10% of scale length
  • IP54 or Tropicalized meters available
  • Wide Range of inputs – to customer’s specifications


  • Military, Marine, Railroad and off road applications
  • Ideal for adverse (dusty) environments or severe applications, meets UL-1437 or IEC 144 or IP54
  • Rugged, High Shock Movement ideal for rough environments


The Rishabh EQ 90° quadratic series is designed for applications that require reliable true RMS readings independent of waveform or harmonics. Rishabh’s patent iron vane movements come with sapphire jewels and hardened steel pivots, providing reliable readings, even in less than favorable environments that are susceptible to vibration or shock. Rishabh movements also offer outstanding meter performance, providing exceptional accuracy, tracking and repeatability.

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Scales are easily interchangeable for maximum scaling flexibility. The scale display area allows for the use of large, easy to read numerals and divisions. The EQ Analog AC metering DIN meters comply with DIN EN60051 (IEC51) requirements, with a standard accuracy of ±1.5% of full scale or better. The EQ Series is available as 48, 72, 96 and 144 mm sizes and is manufactured from self-extinguishing polycarbonate.

  • Literature
  • Specifications

Literature and Technical Information

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Panel Instrumentation

++ EQ_Series -90° Moving Iron DIN Panel Meters
Model: Rishabh EQ Iron Vane Analog DIN Panel Meters- c/w pivot and Jewel movement
Scaling: Customized to any scaling desired with color applications for visual emphasis and to any desired engineering unit.
Specific Accuracies
Measured Quantity: AC current or voltage
AC Accuracy: ±1.5% of full scale
Frequency Meters: ± .15Hz @45-55Hz and 55-65Hz, ±0.093Hz @ 58-62Hz, ±1.5Hz @350-450Hz
Custom Accuracy: 1% or better of Full scale or better (specify)
General Specifications
Full scale deflection angle: 90°
Scale plate: Standard DIN – one piece scale plate
Arc Length: EQ48 EQ72 EQ96 EQ144
41 mm 61 mm 97 mm 146 mm
Scale characteristics: Near Linear 10% above nominal full scale value
Movement: Moving Iron Movement (spring suspension with Pivot & Jewel) – critically damped with silicon oil
Case: Molded polycarbonate with glass
Window: Glass with polycarbonate black bezel
Overload rating: Continuously 1.2 x nominal rated voltage or current
EQ48 – x10 (Max. 200A) – 5 sec max
EQ72, EQ96, EQ144 – x10 – 5 sec max
EQ72, EQ96, EQ144 – x40 (Max. 250A) – 1 sec max
Response time: ≤2 s per DIN EN 60061-1
Case Dimensions
Case: EQ48 EQ72 EQ96 EQ144
Bezel: 48 x 48 mm 72 x 72 mm 96 x 96 mm 144 x 144 mm
Depth: 53 mm 53 mm 53 mm 53 mm
Cutout: 45 +0.6 68 +0.7 92 +0.8 138 +1
weight: 0.1 kg 0.16 kg 0.2 kg 0.4 kg
Insulation Class: Group A – VDE0110
Rated Insulation Voltage: EQ48: 300V, EQ72/96/144: 1000V
Insulation Resistance: 50 Mohm @ 500 VDC
Installation Category: EQ48: 300V Cat III, EQ72/96/144: 600V Cat III
Vibration Resistance: 10-55-10 Hz/1.15mm
1.5gnat 50 Hz
Shock Resistance 1.5gn, 11 ms
Operating Temp.: 0 to 50°C (32 to 122°F)
Storage Temp: -10 to 65°C (14 to 149°F)
Extreme temperature range: -20°C to 65°C (-4 to 149°F)
Tropicalized or IP54 sealed units available
Relative Humidity: ≤ 75% (non condensing)