Version 1.0 rev 14 Aug 2019
67
Balor
Environmental Specifications
Usage
Indoor use only
Altitude Limit for Air-cooling
Up to 6000 m
Altitude Limit for Water-cooling
Up to 6000 m
Operating Temperature
-30°C to 30°C ambient (using standard Shutter)
Storage Temperature
-30°C to 50°C
Operating Relative Humidity
< 70% (non-condensing)
Ingress Protection
IP20
Overvoltage Category
CAT II. An overvoltage category of CAT II means that the equipment is designed to
cope with transient voltages above the rated supply that would be experienced by any
product connected to a mains socket in a building.
Rated Pollution
Pollution Degree 2. Normally only non-conductive pollution occurs. Occasionally,
however, a temporary conductivity caused by condensation must be expected.
Ventilation Requirements
Ensure that ventilation slots are not obstructed when in air cooled mode.
Cooling Specifications
•5
Balor has two variants for cooling: Liquid Cooled Only and Flexi Cooled. Flexi offers both air and liquid cooling
capability, and both variants offer the same liquid cooling temperature of -30
o
C. However, the Liquid Cooled Only
variant is supplied without air vents, useful for minimizing any residual thermal bloom from the camera body in extremely
temperature controlled environments, such as in Radial Velocity experiments.
During air cooling, the user must be aware of the ambient air temperature and altitude at which the camera is operated
as both will have an impact on the extent of sensor cooling. The table below offers a guide to selecting the available
sensor cooling set points under different environmental conditions. The table also shows the recommended liquid
temperature with minimum flow rate of 2 L·min
-1
in order to achieve -30
o
C sensor temperature for both the Liquid Cooled
Only and Flexi cooled systems.
Sensor Temperature
-30°C
-10°C
0°C
Altitude
Liquid cooling
(recommended coolant temperature)
Air Cooling
(maxiumum ambient air temperature)
Sea level
16°C
25°C
30°C
< 3000 m
16°C
15°C
20°C
< 6000 m
16°C
5°C
10°C
The user must also be aware of the possibility of condensation forming on the camera, for further information refer
to Appendix C.
Footnotes
1. Figures are typical and target specifications and therefore subject to change.
2. Dark current are typical median values, measurement is averaged over the sensor area excluding any regions of blemishes.
3. Quantum efficiency as supplied by the sensor manufacturer.
4. Linearity is measured from a plot of Signal vs. Exposure Time as per EMVA 3.0.
5. Specified minimum temperature with coolant assumes coolant temperature of 16°C at a flow rate of 2 litres per minute, measured
at the camera head. Air cooling performance is at the ambient temperature listed. Note that cooling performance may be affected
by the distance between camera head and coolant system.
