Dwyer Instruments PPM-221 Pulse Panel Meter
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Dwyer Instruments PPM-221 is a programmable pulse panel meter with K-factor calibration, 32-point linearization, and configurable relay and analog outputs.
Product details
| Model | PPM-221 |
| Manufacturer | Dwyer Instruments |
| Category | Panel Meters & Displays |
| Availability | Made to order |
Description
Overview
The Dwyer Instruments PPM-221 is a programmable pulse panel meter designed for flexible flow rate monitoring and pulse-based measurements. It offers sophisticated calibration options and multiple output formats to integrate into process control and data logging systems. The meter supports both fast pulse rates and slow accumulation modes with full customization of display and output parameters.
Key Features
- Three levels of password protection for security
- Gate function for accurate rate display of slow pulse signals
- Selectable rate display units: per second, minute, hour, or day
- K-factor calibration with up to 32-point linearization for precise measurement
- Display modes: Total, Grand Total, or Non-Resettable Grand Total
- Two or four relay output options (selectable)
- Isolated 4-20 mA analog output
- Serial communication: RS-232 or RS-422/485
- Optional external expansion modules (4-relay and digital I/O)
- Operating voltage: 12-24 VDC
- Programmable save and recall settings
Applications
- Flow rate monitoring and measurement in process control systems
- Cumulative totalizing for batch counting and material tracking
- Pulse-based process monitoring and data logging
- Integration with PLC and control systems via relay outputs
- Energy and utility measurement applications
Specifications
| Operating Voltage | 12-24 VDC |
| Pulse Input | Contact closure or electronic pulse signal |
| Rate Display Units | Selectable: per second, minute, hour, or day |
| Calibration Method | K-factor with up to 32-point linearization |
| Display Modes | Total, Grand Total, Non-Resettable Grand Total |
| Password Protection | Three levels |
| Relay Outputs | 2 or 4 relays (selectable) |
| Analog Output | Isolated 4-20 mA |
| Serial Communication | RS-232 or RS-422/485 |
| Expansion Modules | 4-relay and digital I/O options available |
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Dwyer Instruments PPM-221 Pulse Panel Meter
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