HVAC Instruments Archives - Unique Control System

Lutron DO-5509 Dissolved Oxygen Detector

Aman Marghani — Fri, 27 Apr 2018 20:26:31 +0000

Lutron DO-5509 Dissolved Oxygen Detector is supplied with a polarographic type probe with an incorporated Temp. sensor which serves for precise Dissolved Oxygen (DO) and Temp. measurement.

Applications: Aquarium, Medical research, Agriculture, Fish hatcheries, Laboratory, Water conditioning, Mining industry, Schools & Colleges, Quality control etc.

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Dwyer AQH-20 Indoor Air Quality Meter

Aman Marghani — Fri, 27 Apr 2018 20:17:24 +0000

Dwyer AQH-20 Indoor Air Quality Meter measures carbon dioxide concentration, air temperature, and humidity percentage in one device. A large backlit LCD display shows all three parameters simultaneously. Minimum, maximum, and average readings are easily accessible through the function buttons. By pressing the hold key, the current values are held so that they can be recorded. An audible alarm warns the user that the current ambient conditions are becoming hazardous.

Features:

All-in-one unit for carbon dioxide, temperature, and humidity
Large backlit LCD for visibility in dark areas
User configurable alarms for audible indication of hazardous conditions

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Rotronic HygroPalm 21

Aman Marghani — Fri, 27 Apr 2018 20:14:43 +0000

HygroPalm 21

ROTRONIC ,Switzerland make HP21 is a highly accurate handheld indicator that displays relative humidity, temperature and dew or frost point temperature. The HP21 is perfect for spot checking HVAC installations, manufacturing or storage areas and any ambient air measurement within the temperature range of -10 to 60°C (14 to 140 °F). The HP21 is designed to meet a wide range of user requirements from the most basic applications to the most demanding applications. In spite of its high end design, the HP21 is ideal even as a simple humidity and temperature indicator.

Features:

Range of measurement: -10 to 60°C / 0 to 100 %RH
Accuracy at 23°C: 1 %RH, 0.2 K
Adjusted at 23 °C and 10, 35, 80 %RH
Service interface (UART)
Calculation of dew and frost point

Technical Specifications:

Psychrometric calculations	Dew or frost point
Calibration / adjustment	with keypad
Reproducibility Airchip	<0.02 %rh / 0.01 K
Initialisation time	Typically <3 sec.
Measurement interval	2 seconds
Display type	Graphic display. Display freely configurable
Backlight	Yes
Alarm indicators	Yes
Battery indicator	Yes
Exploitation software	ROTRONIC HW4.2 (Not part of supply)
Trend indicator	Yes
Probe adjustment by software	Yes, with service cable (Not part of supply)
Firmware update	With internet and HW4 software
User information	from Software HW4 (devicemanager)
Data processing via HW4	Graphs, statistics, analysis, qualification, etc.
Device Protection by password	Yes
Service Interface	Mini USB (UART)
Max. cable length service cable	5 m (Not part of supply )
Enclosure material	ABS
IP protection rating	IP40
Fire protection class	UL94-HB Compliant
FDA/GAMP compatibility	FDA 21 CFR Part 11 and GAMP compatible

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Honeywell H7080B Temperature and Humidity Duct Sensor

Aman Marghani — Thu, 26 Apr 2018 11:53:25 +0000

Honeywell H7080B series duct mounting humidity and temperature comes with 4~20mA/ 0~10VDC or resistance output for temperature and 4~20mA/ 0~10VDC output for humidity.

Features:

• Duct mounted

• Excellent linearity

• Good long term stability

• High reliability

• Wide sensing range

• Easy installation

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