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Temperature/Relative Humidity Conditioner/Transmitter Probe
Relative Humidity/Temperature Transmitter, Duct Style
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- ±2% RH Accuracy ±0.6C Temperature Accuracy
- Stainless Steel NEMA 4 Housing
- Duct or Wall Mountable Mounting Hardware Included
- 4-20mA or 0-1Vdc Output Options
HX94CNPT Model Options
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*Highlighted options are not compatible. Please select a different combination.
Output Type
Additional Feature
Input Type
Input Ranges
Supply Voltage Type
Programability
The HX94 relative humidity/ temperature transmitter provides a reliable and low cost method for duct mount monitoring applications. Solid state sensors provide excellent sensitivity, fast response, and stability. Simple hookup and linearized output permit interfacing with most display and control devices. The NEMA 4 stainless steel enclosure and cable entry connection provides weather tight protection. The digital temperature and relative humidity sensor is protected by a stainless steel cap that is easily removed for cleaning.
Specifications
RELATIVE HUMIDITY
Thin-Film Polymer Capacitor
Input Voltage Range:
6 to 30 Vdc, (polarity protected)
Range/Accuracy/Repeatability:
3 to 95% RH/±2% RH/±1% RH
Voltage Output:
HX94V: 0 to 1.0 V (0 to 100% RH)
Time Constant: (for 90% response at
25°C; in moving air, 1m/sec.)
Less than 20 seconds, 10 to 90% RH
Less than 30 seconds, 90 to 10% RH
TEMPERATURE
Thin-Film 100 Ω Platinum RTD
(DIN 43760)
Input Voltage Range:
6 to 30 Vdc, (polarity protected)
Range: 0 to 100°C (32 to 212°F)
Accuracy: ±0.6°C
MECHANICAL
Housing: Stainless steel NEMA 4
enclosure
Probe: 254 x 19 mm (10 x 0.75") dia.,
305 mm (12") cable
Duct Flange: Removable, variable
25.4 to 227 mm (1 to 9") depth; 70 mm
(2.75") dia., duct hole 21 mm (0.812") dia.
4 mtg holes. 4 mm (0.156") dia. (for #6
sheet metal screws) on 51 mm (2.00") dia.
circle; wall mounting bracket included
Connections:
HX94C/94V: 4 pin mating connector
accepts 26 to 18 AWG wires
HX94CW/94VW: 1 m (3') braided
and shielded cable, PVC sheathing
HX94CNPT/94VNPT: 1⁄2" male NPT
conductor with 1 m (3') braided/
shielded cable
Weight: 198 g (7 oz) with duct flange
Do we need to purchase a power cable along with DPPT series?
Hi Shibo_F,
Thank you for the inquiry. Yes, you will need power/signal cable. 4 conductor twisted shielded cable, TX4-100, can be used for this purpose.
Best regards,
OMEGA
Date published: 2023-12-03
How is the accuracy if the probe has condensation on it? Is there an IP rating for the probe?
Hi Eddie
Thank you for the inquiry. This probe is not designed to handle condensing humidity conditions. If the sensor gets water droplets on the element it will go into saturation with max output. It would have to dry clean without corrosion to come back on line in calibration. The housing is rated NEMA 4.
Best regards
OMEGA
Date published: 2023-02-15
What is the maximum pressure at which this item can operate?
Thank you for your inquiry engtech3. Unfortunately, the HX94C is not pressure rated.
Date published: 2022-08-19
Which meter do you recommend to use with this directly to display the value?
Thank you for your inquiry. You can use our DPPT-series Platinum series universal input meter with this sensor. Here is the link to the pdf catalog: https://assets.omega.com/spec/DPPT-Series.pdf
Date published: 2023-11-22
Can I get the readings with the combination of followings? 1 HX94V + DPPT series Do I need to calibrate DPPT?
Hi Shibo_F,
The HX94V has 2 outputs so you would need 2 displays. You would need to set up and scale the display to match the calibrated range of the HX94V.
Best regards,
OMEGA
Date published: 2023-12-03
What are the accessories that are required for this one? To what instrument is the 4 pin connector connected?
Thank you for your inquiry. The primary accessories required are a power supply (shown under accessories) on product page, and 4 conductor cable to mate with supplied connector that would be then connected to an instrument to read the values. There are two 4-20 mA outputs (one for temperature, one for relative humidity) that can be connected to any instrument (panel meter, chart recorder, controller, etc.) that accepts a 4-20 mA signal and can be scaled to represent temperature or relative humidity.
Date published: 2023-03-28
Is the HX94C CE compliant?
The HX94C is not CE approved. The similar HX94BC is CE approved;
https://www.omega.com/en-us/control-monitoring/air-soil-liquid-and-gas/temperature-and-humidity-transmitters/hx94b-srs-temp-rh-sig-cond/p/HX94BC
Best regards
OMEGA
Date published: 2024-04-28
What type of mating connector is used - I need to order another one.
Thanks for your question. The mating connector is listed on the Data sheet (PDF). The model number is HX94-MC. If you add to the cart it will come up to place your order. We do have stock available.
Date published: 2019-05-03
