|
|
|
|
|
|
Libratherm offers Microprocessor based Humidity and Temperature Controller Model HTC-3003, which has same features as the Model HTC-3000, except that it has 3 digit display for simultaneous indication of both temperature and %RH value.
The controller accepts input from the standard (Pt-100) temperature sensor and from the capacitive type RH sensor or temperature/humidity transmitter. The process values and set values are displayed simultaneously in the range 0.0-99.90oC and 0.0 – 99.90% RH respectively on 4 independent 3 digit 7-segment Red LED displays,
Since the controllers are basically designed for the stability chambers, the accurate control of temperature and humidity is achieved by operating the air heater and the boiler heater in the PID control action. and the compressor is operated in ON/OFF action with time delay facility. Since the compressors are not required to be ON at certain level of temperature, the user selectable mode is provided to program the compressor operation in AUTO, Continuous ON or Continuous OFF mode.
The controllers are ready with the serial communication port RS 232 / RS 485 for interfacing to the computer for data logging and storage.
Specially designed window based E-Chamber Software does the on line data logging and plot the online / offline graph on the PC and also allows user to enter the set points and control parameters through PC and the controller. (i.e. bi-directional communication). Two level Pass Word protected (operator & supervisory) for unauthorized alteration of the set parameters and stored data is also provided.
|
|
FEATURES:
- Precise chamber control
- Rack-mounted hygrometer
- Hygrometer utilizes primary measurement technique
- Long proven and unsurpassed humidity control system
- Highly accurate NIST traceable sensor
- Sensing system discriminates between dew and contaminants
BENEFITS:
- Reduces uncertainty
- Easy to provide NIST recertification
- Proven methodology
- Extremely stable and uniform environment
- Reliable data
- Worry-free
|
|
Honeywell Sensing and Control humidity sensors contain a capacitive sensing die set in thermoset polymers that interacts with platinum electrodes. On-chip signal conditioning ensures linear voltage versus %RH. Absorption-based humidity sensors provide both temperature and %RH outputs. Laser trimmed for stable, low drift performance. Printed circuit board or surface mount terminations provide application flexibility. Chemically resistant packages accommodate harsh environments.
Best Used For:
Refrigeration, drying, meteorology, battery-powered systems and OEM assemblies.
|
|
| ... products without technical information |
| |
The PGC 4.5 cu. ft. chamber features our unique humidity control system that enables the user to attain unsurpassed levels of RH/temperature control and uniformity.
These test chambers are designed to accurately produce those temperature and humidity conditions required for applications such as stability studies, package testing, TAPPI, MIL-SPEC, and vapor transmission.
Applications are found in such diverse industries as pharmaceutical development and manufacturing, electronic components, food, semiconductor, paper and pulp, and wherever precise humidity and temperature replications are required.
|
|
|
|
|
|
TAPPI Rooms
AN UNSURPASSED RH CONTROL OF ±0.5%
TAPPI Room PDF Parameter Generation and Control (PGC) manufactures TAPPI room systems and conditioners for existing laboratories. These systems provide the precise temperature and humidity control required by TAPPI T402 om-88.
We offer a complete package:
We manufacture your room or chamber to operate at both the TAPPI and TAPPI preconditioning specification. System can automatically cycle between the two conditions.
Complete installation on site anywhere in the world.
On-site start-up instruction.
PC based monitoring systems comes standard with each unit. System monitors temperature, relative humidity, saturator, and mechanical outputs.
Calibration and PM contracts.
Extremely precise control and uniformity within the room or chamber allows for the customer to easily validate at the targeted position.
Our unique dew point control systems utilize much less energy than other stability control systems.
Our systems do not utilize maintenance intensive boilers and steam injectors that require high purity water.
|
|
|
|
|
|
The PGC 7000 series chambers feature our unique humidity control system that enables the user to attain unsurpassed levels of RH/temperature control and uniformity.
These test chambers are designed to accurately produce those temperature and humidity conditions required for applications such as stability studies, package testing, TAPPI, MIL-SPEC, and vapor transmission.
Applications are found in such diverse industries as pharmaceutical development and manufacturing, electronic omponents, food, semiconductor, paper and pulp, and wherever precise humidity and temperature replications are required.
Additionally, PGC’s SmartPad microprocessor controller is a user-friendly system that provides optimum accuracy and control. The SmartPad is equipped with direct readings in both temperature and humidity. It also features 40-segment programming for automatic cycling and ramping and soaking excursions. High-low or deviation alarms as well as digital communications ports are standard features.
The interior chamber is constructed of very durable, corrosion resistant stainless steel. Low watt density heaters are used that also contribute to the unit’s longer life.
Should your application require it, the chamber airflow can be factory configured from the standard horizontal flow to vertical. Other options include extended ranges, chart recorders, a window in the outer door, and a clear inner door with optional iris opening. System includes free logging software.
|
|
|
|
|
|
PGC has been providing high quality walk-in chambers since the mid-1970's. These environmental chambers have applications in diverse disciplines such as pharmaceutical stability testing, TAPPI and ASTM testing, biological and biotechnological research, electronics, and many other applications.
Our many years of experience in designing, manufacturing and installing walk-in rooms enable us to provide the user with unparalleled expertise. PGC's staff will assist in planning your room to meet your specific needs.
PGC will provide sole-source responsibility for both room construction and its conditioning equipment. Using modular insulated panels having either a 32 Rvalue (four inch) or a 40 R-value (five inch), enables PGC to deliver maximum efficiencies and uniformities.
FEATURES:
- RH uniformity to ±0.5%
- Temperature uniformity to ±0.5°C
- Multi-range rooms from -30°C to +60°C
- Humidity ranges from 10% to 90% RH
- Modular insulated panels
- Rooms factory-tested prior to
- shipment
BENEFITS:
- Unsurpassed humidity performance
- Superb temperature stability
- Flexibility of operation
- Increased measurement options
- Ease of assembly
- Assurance of proper operation
|
|
AN UNSURPASSED RH CONTROL OF ±0.5%
Stability Room PDF Parameter Generation and Control (PGC) manufactures pharmaceutical stability rooms and chambers for the storage of products that require environmental conditions that must adhere to ICH guidelines.
We offer a complete stability package:
* We manufacture your room or chamber to operate at any ICH condition including: 25°C/60% RH, 30°C/75% RH, 30°C/65% RH, 40°C/75% RH, and 5°.
* Complete installation on site anywhere in the world.
* Validation packages (IQ, OQ, PQ) utilizing state of the art mapping systems.
* 21 CFR part 11 compliant monitoring systems.
* Calibration and PM contracts.
Extremely precise control and uniformity within the room or chamber allows for the customer to easily validate at the targeted position.
Our unique dew point control systems utilize much less energy than other stability control systems.
Our systems do not utilize maintenance intensive boilers and steam injectors that require high purity water.
|
|
Moisture Measurement on Bulk Materials
The Moisture Meter LB 350 has been designed to measure the moisture content of a variety of different products.
For example:
- in bunkers
- on weighting tanks
- on feeding tanks
The large measuring volume of up to 1 meter in diameter assures a representative measured value.
|
|
|
|
|
|
The Honeywell 4112 dew point transmitter represents a technological breakthrough in moisture measurement. Absolute moisture in processes at high pressure and temperatures up to 185 degrees Celsius (365 degrees Fahrenheit) higher than existing equipment is now a reality, opening the door to better product quality, improved thermal efficiency and longer process equipment life. The probe will also stand short temperature excursions to 204 degrees Celsius.
The H4112 dew point transmitter is a direct intrusion, FM approved dew point and dry bulb temperature transmitter for industrial environments. The transmitter measures dew point and dry bulb (process temperature) simultaneously with local indication and retransmitted 4-20 mA outputs. The transmitter is designed to meet the moisture measuring requirements of a wide variety of industrial processes. End-users can now measure moisture where they had previously been unable to do so because of temperature limits, contaminants and harsh environments.
Advanced probe/sensor design virtually eliminates temperature effects and parasitic capacitance interference. New advanced materials and sensor assembly techniques enhance performance in high process temperature conditions. H4112 also has superior tolerance to contaminants. Common solvents, dirt, oil and other pollutants do not affect the stability or accuracy of the sensor. Polymer coatings on the sensor have excellent environmental tolerance ensuring accurate and repeatable dew point measurements
|
|
|
|
