sales@masibus.com
PDH Programmable Frequency Transducer
A Sonepar Company
Product Overview
The Masibus PDH frequency transducer is designed to measure the line frequency of both sine wave and distorted waveforms. It converts this frequency input into a load-independent DC current or voltage output signal, with the output being proportional to the measured frequency.
This device is equipped with two load-independent, galvanically-isolated analogue outputs that can be configured for different input ranges and output curves. Frequency transducers are commonly used to interface with Controllers, Data-Loggers, PLC's, Analog/Digital Indicators, and RTUs. The PDH transducer offers accuracy class 0.2 with up to 3 KV isolation.
Masibus frequency transducers are known for their exceptional accuracy, repeatability, and reliability. They are preferred by OEMs and end-users for their excellent long-term stability.
Key Features
- ✔️ High accuracy class 0.2
- ✔️ Confirms to IEC 60688
- ✔️ Site-configurable inputs ranges & outputs
- ✔️ Onsite selectable output type (DC current / DC voltage)
- ✔️ Load-independent accuracy on all outputs
- ✔️ Available in single or dual output type
- ✔️ Programming port for easy configuration
- ⚙️ Fast response
- ✔️ Excellent long term stability
- ✔️ Good isolation & impulse resistance
- ✔️ Transient protected
- ⚙️ DIN-Rail mounting
Applications
- Generating/transmission distribution stations
- Building management
- Load dispatch center
- Power equipment's OEMs
- HT/LT panels
- Substation automation
- SCADA
- Local and central monitoring systems
- Energy management system
Technical Specifications
| Configuration | Single phase input | Environmental |
Operating Temperature: 0 to +55℃ Storage Temperature: -40° to 85°C Relative Humidity: 25-95% non-condensing Warm up Time: 15 minutes Installation Category: CAT III for < 300V AC Protection Class: IP40 (Housing), IP20 (Terminals) Pollution Degree: 2 |
|---|---|---|---|
| Input |
Measuring Frequency range: 40 to 70 Hz Nominal Input Voltage (Un): 57.7 V to 500 V Burden: <0.3VA at Un Maximum Overload Voltage: 1.2 x Un continuously, 2 x Un for 1 s (with up to 10 repetitions at 10 s intervals) |
Mechanical |
Mounting Type: DIN-Rail Dimension (in mm): 71H x 61W x 112D Case Material: ABS Weight: 0.4 Kg Connector Type: Metal screw Conductor Size for Terminals: ≤ 4 mm² |
| Analogue Output |
Accuracy Class: 0.2 No. of Outputs: 2 Output Type: 4-20mA, 0-20mA, 0-10V, 0-5V, 1-5V DC (Site-configurable) Maximum Load Resistance: ≤750 Ω for 20 mA, ≥ 2 k Ω for 10 V (for each output) Response Time: <400mS Ripple: <0.4% peak to peak |
Communication Ports | Mini USB type: For on-site configuration |
| Standards Compliance | Accuracy as per IEC 60688 | ||
| Auxiliary Power Supply |
Universal aux. supply: 85-265VAC, 50/60Hz or 100-300VDC (Burden: < 5.5VA (2.2W)) DC aux. Supply: 20-60VDC (Burden: < 2.2W) |
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| Isolation (Withstanding Voltage) |
Between primary terminals* and secondary terminals**: At least 3000 V AC for 1 minute Between primary terminals*: At least 3000 V AC for 1 minute Between secondary terminals**: At least 500 V AC for 1 minute *Primary terminals indicate aux power terminals & input terminals. **Secondary terminals indicate analog O/P-1 and analog O/P-2. Insulation resistance: 200MΩ or more at 500 V DC between Input/Output/Power/Case and grounding terminal. |
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Input - Output Signal Curves
The following describes the relationship between the input frequency and the output signal for different configurations:
Curve A: Linear
The output signal changes linearly with the input frequency.
Curve B: Linear with Live Zero
The output signal starts from a non-zero value (live zero) and changes linearly with the input frequency.
Curve C: Compressed Upper Region
The output signal is compressed in the upper range of the input frequency, meaning changes in frequency have a smaller impact on the output in this range.
Curve D: Compressed Lower Region
The output signal is compressed in the lower range of the input frequency, meaning changes in frequency have a smaller impact on the output in this range.
Ordering Code
| Model | Auxiliary Power Supply | Analogue Output |
|---|---|---|
| PDH | U1: 85-265VAC, 50/60Hz or 100-300VDC U2: 20-60VDC |
Output Type-1: 1 (4-20mA), 2 (0-20mA), 3 (0-5V), 4 (1-5V), 5 (0-10V) Output Type-2: N (None), 1 (4-20mA), 2 (0-20mA), 3 (0-5V), 4 (1-5V), 5 (0-10V) |
Cable Accessory (Extra Cost)
| Part No. | Description |
|---|---|
| TT7SCC | Configuration cable |
