Humidity Stability Test Chambers
Nor-Lake Scientific Humidity Stability Test Chambers represent a patent-pending advancement in laboratory climate control, distinguished as the first in the industry to utilize natural hydrocarbon refrigerants. These chambers deliver exceptional performance through the integration of a programmable logic PID controller, variable speed compressor, and ultrasonic humidification technology.
Industries and Applications
Nor-Lake Scientific Stability Humidity Stability Test Chambers are ideal for ICH Q1A stability testing, shelf life, package testing and accelerated aging for a variety of product and packaging in these industries:
- Environmental
- Industrial
- Life Science
- Clinical
- Any Application with Controlled Temperature
Performance Specifications
Performance data is based on cabinet set at +23°C, 50% RH ambient conditions, type T-24 Ga. thermocouples with 1.0 oz. brass slugs attached and no product in the chamber. Data may vary if; ambient conditions change, product load is added, or other changes cause interference to chamber airflow.
Temperature Uniformity
+/-1°C @ +4°C to +70°C. The published temperature uniformity is derived from the maximum deviation of 9 thermocouples are placed on 3 horizontal planes, each plane having the thermocouples evenly spaced diagonally across the shelf from the left and right inner wall, and the middle sensor placed in the approximate geometric center of the shelf.
Humidity Variation
+/-3% @ +10°C to +70°C (humidity controlled range) and RH within performance graph. Humidity variation is derived from the maximum deviation of the humidity sensor during the test period.
Model Specifications
| Model |
Doors |
Shelves |
Width" |
Depth" |
Height" |
Refrigerant |
H.P. |
Amps |
| NSRI231WSW/0H |
1 Solid |
3 Adj. Sliding |
26 ⅞ |
36 ⅜ |
81 ½ |
R290 |
1/3 |
12 |
| NSRI231WSG/0H |
1 Glass |
3 Adj. Sliding |
26 ⅞ |
35 ¾ |
81 ½ |
R290 |
1/3 |
12 |
| NSRI492WSW/0H |
2 Solid |
6 Adj. Sliding |
54 |
36 ⅜ |
81 ½ |
R290 |
1/3 |
12 |
| NSRI492WSG/0H |
2 Glass |
6 Adj. Sliding |
54 |
35 ¾ |
81 ½ |
R290 |
1/3 |
12 |
Control System
A fully programmable PID, proportional integral derivative, control with non-volatile memory provides a user interface through an LCD display. All set points are adjustable by one multi-function interface key pad. The standard control includes: Fully programmable ramp soak functions with 21 schedule points, product and air temperature Centigrade scale, alarm/temperature logging, system mode indicator heating/cooling, high/low audible/visual alarms, real time clock, power failure alarm, sensor failure alarms, service prompts and user password entry system. The modular system includes expansion slots on the control board for the ability to add options at a later date.
Controller Display Features
- Air Temperature °C scale
- Relative Humidity %
- LCD Display
- Real time clock
- Real time Date
Alarm and Protection Features
- Heating/Cooling mode switchable
- Hi/lo audible and visual alarms
- Power failure alarm
- Sensor failure alarm
- Password protected
Standard Features
- Smart Controller with full array of alarms
- Top mounted, variable speed compressor
- Full Chamber Plenum for uniform temperatures
- Tool-less removable and reconfigurable interior storage
- Self-closing door/ Heavy duty door handle
- Probe access port (3/4")
- Floor drain
- 304 Stainless steel interior
- Keyed door lock
- White-powder coated steel exterior
- High Visibility LED Lighting
- Cabinet is foamed-in-place with EPA compliant high density; polyurethane foam insulation
- Hydrocarbon natural refrigerant (R290)
- Multi-element, independent proportional electric heating
- Condensate evaporation
- 10-60 PSI demineralization water supply required
- Uses standard NEMA 5-15 Plug
- System turns off refrigeration when not needed saving energy
- ETL Listed
Optional Accessories
Water Recycler
The water recycler is designed to be a standalone water source. The water recycler can utilize clean tap water and collected condensate from a Humidity Stability Chamber, eliminating the need for a piped water supply. The water recycler also eliminates the need for a drain, as all condensate is filtered and recycled back to the cabinet. (Installation required)
Temperature Monitoring Device
WiFi enabled, single or dual probes.
Additional Shelves
304 Stainless Steel Perforated Sliding Shelves
IQ/OQ/PQ Validation Packages
Available upon request.
Access Port 2"
Provided with a spring-loaded cover on the side of the cabinet. (Installation Required)
