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Dwyer DH-008 Digihelic Differential Pressure Controller, 0–25 in. w.c.
- Regular price
- $919.00
- Sale price
- $919.00
- Regular price
-
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Product Description P/N: DH-008
Description
Dwyer DH-008 is a Digihelic differential pressure controller with a 0–25 in. w.c. range for monitoring and controlling air pressure, velocity, or flow. It combines a digital gauge, two relay switches, and a scalable 4–20 mA output in one panel-mounted instrument.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Dwyer |
| Category | Pressure Control |
| Part Number | DH-008 |
| Subcategory | Differential Pressure Controllers |
| Product series | Digihelic Series DH |
| Measurement type | Differential pressure, velocity, or volumetric flow |
| Pressure range | 0–25 in. w.c. |
| Accuracy | ±0.5% of full scale at 25°C |
| Relay outputs | 2 SPDT, 8 A at 240 VAC resistive |
| Analog output | 4–20 mA DC, 900 Ω maximum |
| Communications | Modbus RTU, RS485, 9600 baud |
| Power supply | 100–240 VAC or 132–240 VDC; 24 VDC option |
| Display | Four-digit LCD with setpoint and alarm indicators |
| Mounting format | 1/8 DIN panel mount |
| Weight | 408 g |
Information About DH-008
The DH-008 is part of Dwyer’s Series DH Digihelic controller line for air and compatible non-combustible gases. It can be configured for pressure, velocity, or volumetric flow measurements using supported engineering units. Two SPDT relays provide adjustable setpoint control, and Modbus RTU over RS485 supports system integration. The 1/8 DIN instrument uses a four-digit LCD with status indicators for setpoint and alarm conditions.
Key Features:
-
Differential Pressure Measurement: Measures pressure differences in HVAC, ventilation, and industrial air-handling systems.
-
Pressure Range: Measures differential pressure from 0 to 25 in. w.c. (inches of water column).
-
Digital LCD Display: Features a four-digit LCD for viewing pressure readings and configured parameters.
-
Integrated Pressure Control: Combines digital pressure indication with adjustable control setpoints.
-
Dual Relay Outputs: Provides two SPDT relay outputs for controlling compatible equipment.
-
Analog Input and Output: Supports a 4–20 mA signal interface for integration with compatible process-control systems.
-
Universal Power Supply: Operates on 100–240 VAC, 50/60 Hz.
-
Modbus Communication: Supports RS-485 serial communication using Modbus RTU.
-
Environmental Protection: Features a NEMA 4X and IP66-rated enclosure for suitable demanding environments.
-
Panel Mounting: Uses a 1/8 DIN panel format with a cutout of approximately 92 × 45 mm.
The DH-008 delivers precise differential pressure monitoring and control for HVAC systems, cleanrooms, filter monitoring, and industrial ventilation applications.
Description
Dwyer DH-008 is a Digihelic differential pressure controller with a 0–25 in. w.c. range for monitoring and controlling air pressure, velocity, or flow. It combines a digital gauge, two relay switches, and a scalable 4–20 mA output in one panel-mounted instrument.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Dwyer |
| Category | Pressure Control |
| Part Number | DH-008 |
| Subcategory | Differential Pressure Controllers |
| Product series | Digihelic Series DH |
| Measurement type | Differential pressure, velocity, or volumetric flow |
| Pressure range | 0–25 in. w.c. |
| Accuracy | ±0.5% of full scale at 25°C |
| Relay outputs | 2 SPDT, 8 A at 240 VAC resistive |
| Analog output | 4–20 mA DC, 900 Ω maximum |
| Communications | Modbus RTU, RS485, 9600 baud |
| Power supply | 100–240 VAC or 132–240 VDC; 24 VDC option |
| Display | Four-digit LCD with setpoint and alarm indicators |
| Mounting format | 1/8 DIN panel mount |
| Weight | 408 g |
Information About DH-008
The DH-008 is part of Dwyer’s Series DH Digihelic controller line for air and compatible non-combustible gases. It can be configured for pressure, velocity, or volumetric flow measurements using supported engineering units. Two SPDT relays provide adjustable setpoint control, and Modbus RTU over RS485 supports system integration. The 1/8 DIN instrument uses a four-digit LCD with status indicators for setpoint and alarm conditions.
Key Features:
-
Differential Pressure Measurement: Measures pressure differences in HVAC, ventilation, and industrial air-handling systems.
-
Pressure Range: Measures differential pressure from 0 to 25 in. w.c. (inches of water column).
-
Digital LCD Display: Features a four-digit LCD for viewing pressure readings and configured parameters.
-
Integrated Pressure Control: Combines digital pressure indication with adjustable control setpoints.
-
Dual Relay Outputs: Provides two SPDT relay outputs for controlling compatible equipment.
-
Analog Input and Output: Supports a 4–20 mA signal interface for integration with compatible process-control systems.
-
Universal Power Supply: Operates on 100–240 VAC, 50/60 Hz.
-
Modbus Communication: Supports RS-485 serial communication using Modbus RTU.
-
Environmental Protection: Features a NEMA 4X and IP66-rated enclosure for suitable demanding environments.
-
Panel Mounting: Uses a 1/8 DIN panel format with a cutout of approximately 92 × 45 mm.
The DH-008 delivers precise differential pressure monitoring and control for HVAC systems, cleanrooms, filter monitoring, and industrial ventilation applications.
