Frequency meter is the instrument, which measures the frequency. Frequency meter shows the number of the cycles in 1 second. Frequency meters are connected parallel to circuit which frequency will be measured like voltmeters.
Angle: 90 degrees at right angles
Grade: 0.5
Protection class: IP42
Ambient conditions: -25 ~ +40 ℃ (AC table 0 ~ +40 ℃)
Relative humidity: 25% to 80%
Resistance to mechanical impact: high mechanical shock resistance, vibration acceleration 0.7g in the conditions of satisfactory operation; can withstand acceleration 150m / s-and impact frequency per minute 80-120 times, lasted 2 hours of transport shock.
Enclosure: Enclosure protection complies with IP42
Pressure: AC 50Hz, AC2000V, which lasted 1 minute.
Weight: less than 1Kg
Working position: vertical (⊥) use.