An ISO 9001 : 2015 Company

4 Digit Frequency Meter / 4 Digit RPM Meter (Model : FDM4S, RPM4AS, RPM964AS, FDM964S, FDM72x1444SA, FDM72x1444SB, FDM1444SA, FDM1444SB)

Specifications

Measuring Method : Interval Measurement Method using Microcontroller
Display Type : Red LED (Standard)
Maximum Display : 9999 Counts for 4 Digit Meters
Resolution : 0.01 to 1 for 4 Digit depending on range 1 RPM for RPM Meter
Decimal Selection : Auto (FDM4S & FDM964S) / Factory Set (For Others)
Maximum Overload : Voltage : 1.2 times continuous
VA Burden (Typical) : Auxiliary : < 4.5 VA, Voltage Input : < 0.5VA
Environment : Calibration : 27°C±5°C, Operating : 0 to 50°C, RH < 70%, Storage : -10 to 60°C, RH < 70%
Dielectric Strength : 2.5 kV at 50 Hz for 1 min. between Input - Auxiliary - Case - Terminals
Case / Housing Material : DIN Black ABS, Dimension as per DIN 43700
Mounting Clamps : Sturdy,Moulded ABS with suitable Hardware
Connectors : Terminal Block : Thermoplastic (UL 94V-0) with Tin Plated Brass Terminals
Faceplate / Lens : Red Antiglare Faceplate with Annunciators

Ordering Information

Model, Input Frequency Range / RPM Range (for RPM Meter), Input Voltage, Auxillary Supply & Accuracy Class

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