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Dwyer Humidity Transmitter: 1/2 in NPT, 4 to 20 mA, 0%to 100% Relative Humidity Range - Hazardous Location Transmitters with Display
DwyerHazardous Location Transmitters with Display

Dwyer Humidity Transmitter: 1/2 in NPT, 4 to 20 mA, 0%to 100% Relative Humidity Range

The DWYER Humidity Transmitter is a hazardous location transmitter with display, model HHT-EU-LCD, featuring a 1/2 in NPT connection and a 4 to 20 mA output. It measures relative humidity from 0% to 100% and requires…

SKU 3G-OTH-185206

Brand
Dwyer
Item
Humidity Transmitter: 1/2 in NPT, 4 to 20 mA, 0%to 100% Relative Humidity Range
Category
Hazardous Location Transmitters with Display
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Technical Specifications

Dwyer
Manufacturer Part Number
HHT-EU-LCD
Type
4 to 20 mA, Female
Standards
FM
Power Required
16.5 to 28V DC
Relative Humidity Range
0%to 100%
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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER Humidity Transmitter is a hazardous location transmitter with display, model HHT-EU-LCD, featuring a 1/2 in NPT connection and a 4 to 20 mA output. It measures relative humidity from 0% to 100% and requires a power supply of 16.5 to 28V DC. This FM-approved device is designed for use in hazardous environments.

Frequently Asked Questions

What is the DWYER HHT-EU-LCD humidity transmitter used for?

The DWYER HHT-EU-LCD is a hazardous location transmitter with display that measures relative humidity from 0% to 100%. It is used in industrial environments requiring FM-approved equipment, such as chemical plants or refineries, where reliable humidity monitoring is critical for process control and safety.

What are the specifications of the DWYER HHT-EU-LCD humidity transmitter?

The DWYER HHT-EU-LCD humidity transmitter has a 1/2 in NPT connection, 4 to 20 mA output, and measures 0% to 100% relative humidity. It requires 16.5 to 28V DC power and is FM-approved for hazardous locations. The female thread design suits standard industrial installations.

Where to buy the DWYER HHT-EU-LCD humidity transmitter worldwide?

3G Electric supplies the DWYER HHT-EU-LCD humidity transmitter worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this FM-approved hazardous location transmitter.

How to install the DWYER HHT-EU-LCD humidity transmitter?

Install the DWYER HHT-EU-LCD in a hazardous location using the 1/2 in NPT female connection. Ensure power supply is 16.5 to 28V DC and wiring supports 4 to 20 mA output. Follow standard practices for FM-approved equipment: verify area classification, use proper conduit seals, and avoid exceeding the rated humidity range.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer hazardous location transmitters with display. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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DWYER Temperature/Humidity Transmitter: 1/2 in NPT, -40 to 140 Degrees F, 4 to 20 mA, Female (MPN HHT-IT-LCD). Key specifications — Brand: DWYER; Standards: Intrinsically Safe; Sensing Element Type: Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Power Required: 9.5 to 28V DC; Temperature Range: -40 °F to 140 °F.
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DWYER Temperature/Humidity Transmitter: 1/2 in NPT, -40 to 140 Degrees F, 4 to 20 mA, Female (MPN HHT-IT-LCD). Key specifications — Brand: DWYER; Standards: Intrinsically Safe; Sensing Element Type: Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Power Required: 9.5 to 28V DC; Temperature Range: -40 °F to 140 °F.