HTPB series from Edgetech Humidity is a family of humidity probes that offers a variety of measurement parameters with precision accuracy: RH, temperature, dew point, pressure (psia), ppmv, ppmw, gr/lbs, etc.

The probe is easily adaptable for most applications including:

• High temperature
• High pressure conditions.

HT75 - Humidity/temperature stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, operating temperature -20C to 75C, dew point range 30 to -60C, default outputs: RH, temperature and dew point.

HTB75 - Humidity/temperature/barometric pressure stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, pressure range is (barometric pressure, 300-1100mb, operating temperature -20C to 75C, default outputs: RH, temperature and pressure.

HTP 55 - Humidity/temperature/high pressure stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, pressure range is 0-200psia, operating temperature -20 to 55C, default outputs: RH, temperature and pressure.

HT115 - A remote (6ft cable) humidity/ high temperature stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, operating temperature -20C to 115C, default outputs: RH, temperature and dew point-DIS option included.

HTB115 - A remote (6ft cable) humidity/ high temperature/barometric pressure stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, pressure range is (barometric pressure, 300-1100mb, operating temperature -20C to 115C, default outputs: RH, temperature and pressure, DIS option included.

HT115N - A remote (6ft cable) humidity/ high temperature stainless steel probe with a stainless steel sinter filter, RS232 and 0-10Vdc outputs, RH measurement range is 5 to 95% with an accuracy of +/-1%, operating temperature -20C to 115C, default outputs: RH, temperature and dew point

Specification:

• 0-10Vdc, RS232 outputs
• 18-30Vdc power
• Programmable scaling and selectable measurement parameters through RS232 serial port
• Wall(W),Remote (R), pipe (P) ¾" thermocouple bore through compression fitting and duct (D)mount configurations-need to specify the mounting configuration at the time of order
• Accuracy +/- 1% nominal
• Standard 6 ft cable length
• Stain less steel sinter filter-removable

Options:

• DIS display, 4-20mA , RS232 and 2 programmable alarm relays (1 Form A (NO) 3A/250Vac
• FRSHT75 field replaceable sensors module for RH/T interchangeability accuracy to published spec
• FRSHTP55 field replaceable sensor module with RH/T/P interchangeability accuracy to published spec

Sensor Dimensions:

• Width ¾" OD
• Length 8"

About Edgetech:

EdgeTech Moisture, Humidity & Oxygen Instrumentation designs & manufactures reliable and accurate, instruments that provide measurements of dew point, oxygen, humidity and relative humidity [RH]. EdgeTech provides standard products and non-standard custom humidity instrumentation.

Contact Us

The Opti-Cal offers the opportunity to provide local calibration of RH sensors directly traceable to International Standards over a wide humidity range and at any set temperature from 50 to 120ºF. The Opti-Cal compliments Michell Instruments Inc.'s existing humidity generator range and adds the key features of temperature control, traceable reference and fast response.

Opti-Cal Product Features

• Perform RH sensor calibrations in-house
• Simple and easy to use
• Fully self-contained system
• Range 10 to 90 %RH over 50 to 120°F chamber temperatures
• Integrated traceable reference hygrometer
• Best measurement capability <2 % of reading

Great Despatch Temperature/Humidity Chambers - Ideal for use as a Steady State Chamber or Humidity Cycling Testing.

LRE Buys/Sells/Trades Used Refurbished Environmental Test Chambers, Industrial Ovens, QA Test Equipment - Brand New Equipment Also Available. We still have a Large Inventory of Despatch Temperature/Humidity Chambers available. These are very popular. Make sure you resurve yours.

These Chambers will be LRE CERTIFIED Refurbishe and include one or more of hte following features:

Contact us for a quotation and exact items included...

• New Enviromentally Friendly Refigerants
• Brand New Watlow Controller
• Circular Chart Recorders
• Water Recycling System
• Sourd Proof Package
• Window in Door
• Castors for Easy Movement
• Shelves
• Feed-Through Port in Side Wall
• Temperature Range: -20C to +170C
• Humidity Range: 20% to 95%RH

View additional information and pricing for our extensive line of products (use the links below):

• Industrial Ovens,
• Environmental Test Chambers - Used,
• Environmental Chambers
• Environmental Test Chambers,
• Temperature Chambers,
• Temperature Chambers - Brand New
• Certified Refurbished Temperature Chambers,
• Temperature Chambers - Mechanical Refrigeration
  Temperature Chambers - LN2/CO2,
• Temperature Chambers - Brand New
• Lowest Cost Temperature Chamber,
• Thermal Shock Chambers - New and Used Refurbished
• Agree Chambers,
• Temperature Plates,
• Temperature Humidity Chambers
• Certified Refurbished Temperature Humidity Chambers,
• Temperature Humidity Chambers - Brand New
• Lowest Cost Temperature Humidity Chamber,
• AGREE Chambers Thermal Shock Chambers,
• Industrial Ovens - New and Used Refurbished,
• Industrial Ovens - Certified Used Refurbished
• Industrial Ovens - Under 20"x20"x20",
• Industrial Ovens - Over 20"x20"x20"
• Industrial Ovens - Inert Gas Ovens,
• Industrial Ovens - Clean Room
• Industrial Ovens - Burn-In,
• Industrial Ovens - Vacuum Ovens
• Industrial Ovens - Options,
• Industrial Ovens - Brand New
• Laboratory Ovens - Brand New,
• Powder Coating Ovens - 27 Cu Ft
• Powder Coating Ovens - 96 Cu Ft,
• Vacuum Ovens - All Sizes
• Furnaces - High Temperature - All Sizes
• Freezers,
• Furnaces,
• Laboratory Ovens,
• Bemco Temperature Chambers

LR Environmental Equipment Co. Inc. - CERTIFIED Used Refurbished Equipment
Environmental Chambers - CERTIFIED Refurbished and Sold with a 100% Money Back Warranty
Besides CERTIFIED Refurbished Environmental Test Chambers, LR Technologies (an affiliate Company to LRE) also offers Brand New Environmental Chambers.

With over 38 Years of Experience and 1000's of Satisfied Customers, you have found the right place to purchase your Environmental Chamber. We Have all the Environmental Chambers. Brands including Tenney, Blue M, Thermotron, Espec, Ransco, CSZ, Delta Design etc...

Types include Temperature. Temperature/Humidity, Thermal Shock Chambers, ESS, HAST, HALT etc....

What is a LRE CERTIFIED Refurbished Environmental Chamber?
When purchasing Environmental Chambers, you generally have two choices, new or used. Now there's a third category, LRE Certified Refurbished. Although they're not new, these LRE Certified Refurbished Environmental Chambers are as close to new standards as you can get. Customers are given added peace of mind because LR Environmental Equipment Co. Inc. (LRE), a 37-year-old well established Company with an excellent reputation, stands behind these superior LRE Certified Refurbished Environmental Chambers.

Equipment must pass, meet or be brought up to manufacturer's standards.

Warranty: LRE Certified Refurbished equipment is supplied with a 90 days parts and labor warranty from LRE.

Certification: A Certificate will be supplied with all LRE CERTIFIED Refurbished Environmental Chambers to certify that the chamber has been refurbished to LRE's rigorous standards.

LR Environmental Equipment Co. Inc.
12902 S. Spring Street, Los Angeles CA 90061
Phone: 800-574-2748

At the completion of the Vaisala free of charge, one day Humidity Seminar attendees will have attained a comprehensive understanding of humidity and the measurement principles related to humidity. Topics of discussion progress from fundamental humidity theory and the associated parameters that quantify humidity to the practical aspects of technology; good measurement practice; calibration; ending with examples of real world applications through case study. The one day course is taught by Vaisala engineers with extensive experience in providing humidity measurement solutions throughout a wide variety of industrial applications. Find seminar dates and locations below.

Vaisala Humidity Seminar Dates and Locations:

Date: Location:

March 19 & 20, 2008, San Francisco, CA

April 16 & 17, 2008, Fairfield, NJ

May 14 & 15, 2008, Detroit, MI

June 11 & 12, 2008, Baltimore, MD

August 13, 2008, Dallas, TX

September 8-11, 2008, Boston, MA

October 8, 2008, Toronto, ON

November 5 & 6, 2008, Chicago, IL

Sign up today!

Registrations are on a first come, first served basis. The Seminar is FREE, but due to a class size limit, we ask that you commit to attend if you reserve a seat. You can register by the following methods:

• Register online
• E-mail: seminars@vaisala.com
• Call: 1-888-VAISALA (824-7252)

Who should attend:

• Engineers, technicians, managers and anyone with an interest in further understanding of humidity and humidity measurement principles
  

• Vaisala instrument owners desiring a more comprehensive understanding of the Vaisala humidity measurement technology including sensor performance, calibration, operation and application

Factory- calibrated Temperature and Relative Humidity Sensors Pair with SURECROSS™ Wireless Network

Minneapolis, MN—August 7, 2008—Banner Engineering Corp. introduces the SureCross™ Temperature and Humidity Sensor, robust instrumentation optimized for use with the company's SureCross Wireless Network.

The SureCross Temperature and Humidity Sensor is factory-calibrated to determine relative humidity to ±2% or ±3.5% (depending on model) and delivers temperature accuracy to ±0.3° C for simple critical data monitoring. Manufactured with a rugged metal housing and IP67 electronics, it provides maintenance-free operation in a wide variety of environmental monitoring applications.

Banner designed a proprietary serial sensor interface that enables the Temperature and Humidity Sensor and the wireless Node to operate on a FlexPower™ battery supply for up to 20 years. Fixed and remote-mount Node and sensor models enable a wide range of installation scenarios, including in-duct and freestanding applications. For remotely mounted sensors, cables in lengths up to 3 meters are available. A hydrophobic membrane filter for general applications and a sintered stainless steel filter for hostile drying areas are available to meet the requirements of the most demanding environments.
The sensor can be paired with a Node that includes an integral battery supply or an external power source including battery, solar or 10-30V dc. With an external power supply, two Temperature and Humidity sensors can be used with a single wireless Node. Each Node is equipped with an LCD and data is displayed in degrees C or F and relative humidity is in a percentage from 0-100%. The Node can be installed as a stand-alone device, or it can work in conjunction with a Gateway, the wireless network controller. The SureCross Wireless Network provides a robust, reliable wireless solution with bidirectional fully acknowledged data transmission. This network employs Frequency Hopping Spread Spectrum (FHSS) and Time Division Multiple Access to ensure the most reliable data delivery possible. The Gateway supports multiple communication outputs and seamlessly integrates with existing wired control systems.

If radio frequency links are lost, all relevant outputs can be set to user-defined conditions until the links are reestablished. This deterministic wireless capability makes the products simple to install and more cost-effective than conduit, delivering a reliable, long-lasting solution.

"Monitoring the optimal temperature and humidity in controlled storage areas is crucial to ensuring optimum product quality—and if this environment is not sufficiently maintained, the stored products can quickly become compromised," said Chris Dales, Senior Application Engineer, Banner Wireless Division. "The Temperature and Humidity Sensor delivers highly accurate results that are simply transmitted using the communications-integrity-ensured SureCross Wireless Network, and users can select the power method that works best for their individual applications." Dales adds, "With this arrangement, if temperature or humidity exceed acceptable limits, a remotely located Gateway can issue an alarm to management personnel, minimizing the risk of product damage or loss."

Applications. The SureCross Wireless Network equipped with the serial sensor interface and factory-calibrated Temperature and Humidity Sensors deliver dependable monitoring in a broad range of environments, including:

• Large-scale refrigeration and cold chain storage systems
• Greenhouses
• Warehouse areas
• Pharmaceutical
• HVAC
• Textiles
• Energy management
• IT resources and data centers

In addition, several unique features of the SureCross Temperature and Humidity Sensor and Wireless Network make them particularly effective and easy to use:

• Provides relative humidity measurement with ±2% or ±3.5% accuracy (model specific)
• Delivers temperature accuracy of ± 0.3° C and resolution of 0.1° C
• Features a proprietary serial sensor interface optimized for use with FlexPower
• Offers multiple filter options to meet a wide range of environmental requirements
• Ensures signal transmission reliability by pairing FHSS technology and TDMA architecture with bidirectional communications
• Offers alarm capabilities through a remote SureCross Gateway to inform management personnel when temperature or humidity has exceeded acceptable levels
• Provides time-efficient installation and cost-effective, convenient operation relative to any wired solution

Learn more about the SureCross Temperature and Humidity Sensor and Wireless Network options.

About Banner. Banner Engineering is the world's leading manufacturer of wireless networks, photoelectric and ultrasonic sensors, vision sensors, electronic machine guarding systems, fiber optic assemblies and precision measurement systems.

For further information, contact Banner Engineering Corp., 9714 Tenth Avenue North, Minneapolis, MN 55441. PH: 888.373.6767 (Toll-free North America), or 001.763.544.3164 (International). FAX: 763.544.3213.

PGC's 1500-3000 CFM system is a durable, high quality piece of humidity/temperature conditioning equipment for scientists and engineers whose research, testing, or quality control applications require environmental testing and simulation within extremely narrow tolerances.

PGC conditioners are two-temperature generators. Within the unit, a water spray temperature and a leaving air temperature are precisely controlled. A portion of the air always passes through a water spray where it is cooled to the temperature of the water and saturated. The air is then reheated to the desired dry-bulb temperature and returned to the conditioned area. The temperature of the water spray will approach the dew point of the process air. By controlling dew point temperature and dry-bulb temperature, a very constant relative humidity is maintained.

If the area to be conditioned has changing internal loads or requires make-up air, the Cascade System should be selected. This system adds a humidity sensor to the control loop that will reset the water spray temperature to compensate for load changes.

Air Flow

Air returning from the conditioned space passes through a return duct and, depending on the position of the face and by-pass damper, a portion is directed through a water spray and the balance by-passes the spray. The portion of the air subjected to the sprayed coil is cooled to within approximately 1.0ºC of the spray water temperature. This essentially saturated air passes through a mist eliminator and mixes with air that by-passed the sprayed coil. The mixed air is forced across an electric air heater by a fan. The conditioned air is then supplied, via ductwork, to the work or test area.

Air Control

A proportioning control system compares the dry-bulb temperature, measured by an RTD, to the air temperature set point. A pulsed output, which is ordinarily "on" 50% of the time when stabilized, is supplied to the air heater control circuit. A second analog output positions the by-pass damper so that the amount of air by-passed is directly proportional to the percentage of air heat applied. If the air temperature drops below the selected set point, the controller calls for more heat; i.e., the "on" time of the heater increases. The face and by-pass damper begins to compensate so that more returning air by-passes the spray coil, returning the pulsed output to the normal 50% "on" condition. Conversely, if the air temperature increases above the set point, the heater is pulsed less and more air is directed through the spray chamber.

Water Control

A platinum RTD in the water line supplies feedback to the proportioning controller, the output of which adjusts a refrigeration valve and a water heater. Water spray temperature is controlled within ±0.1ºC.

Relative Humidity Control (Cascade)

The desired relative humidity is set to within ±0.1%. The proportioning controller receives a feedback signal from a relative humidity sensor and, if necessary, causes the water temperature set point to be changed. The output of the RH controller, like that of the air temperature controller, is normally "on" 50% of the time; i.e., time on equals time off. If the relative humidity drops by as little as 0.2%, the "on" time of the controller will increase and reset the water temperature higher by approximately 0.1ºC. This will, in turn, increase the relative humidity to the selected set point, returning the controller output to a 50% duty cycle.

Benefits:

· Precise

Better than ±0.5ºC and ±1.0% RH is provided by the 1500-3000 CFM unit.

· Easy

The 1500-3000 CFM unit sits on casters and can be rolled right up to the area to be conditioned.

· Durable

316 stainless steel interior with heliarc-welded seams.

· Proven

PGC has been building humidity chambers since the mid-1970s using a principle established and proven since the 1930s.

Standard Features:

· Mechanical, conditioning, and control components come complete in one unit

· Adjustable over-temperature safety thermostat for both air and water

· High quality solid state control circuit

· 316 stainless steel

· Pebbled exterior finish

· Automatic liquid-level device

· Magnetic seal chemical pump for water spray circulation

· Centrifugal fan for circulating air through conditioned area

· Low watt density heaters to ensure long life

· Low water safety cutout