Description
Product Summary
The Supco DDM55 Manometer, INPUT+55"/-55" H2O with Differential is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. Isolate difficult pressure problems in natural gas and propane systems. Providing a differential measurement, the DDM55 accurately tests for leaks in low pressure gas systems and more.
Test instruments for HVAC/R diagnostics and system verification.
Key Features
- ⅛" ID Hoses, fitting and case included
- Backlit LCD
- Dual Input
- Left port - negative pressure
- Range ± 55" H2O
- Resolution to 0.01" H2O
- Right port - positive pressure
Specifications
| Brand | Supco |
|---|---|
| Part Number | DDM55 |
| Part Type | Test Instrument |
| Display | Dual LCD |
| Accuracy | ± 0.3%FSO (25°C) |
| Repeatability | ± 0.2% (Max. ± 0.5% FSO) |
| Linearity/Hysteresis | ± 0.29% FSO |
| Pressure Range | ± 2 psi |
| Maximum Pressure | 10 psi |
| Response Time | 0.5 Seconds typical |
| Low battery Indicator | Yes |
| Over Range Indicator | Err.1 |
| Under Range Indicator | Err.2 |
| Operating Conditions | 32°F to 122°F (0°C to 50°C) |
| Storage Conditions | 14°F to 140°F (-10°C to 60°C) |
| Power Supply | 9V Battery (Included) |
Cross Reference
The Supco DDM55 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| EM-201 | UEI® | Manometer |
| MA-12835 | MA-Line® | Manometer |
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What's Included
- (1) Supco DDM55 Manometer, INPUT+55"/-55" H2O with Differential
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
