Uvisensor Installation; Clamp And Mirror Method - EIT MULTIBRITE MB100AC1 Operator's Manual

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MultiBrite Operator's Manual
The alarms will not be activated if power has recently been applied to the system. A dip switch
programmable time delay from 5 seconds to 21.25 minutes will ensure the lamps will be at full intensity
before indicating an alarm condition. The alarm output from a system may be paralleled with any additional
system alarm outputs to allow configuration of a curing system with more than 4 UV sensors. If a below-
threshold condition is detected on any UV channel, the common alarm will be enabled. Local alarms will
identify which sensor cluster initiated the alarm. The local audible alarm may be silenced by the alarm
silence switch without affecting the alarm signal to the common alarm.
To accommodate systems with sensor requirements other than those divisible by 4, individual channel alarm
monitor switches permit disconnecting any input channel from the alarm logic. This same feature allows
removing sensors form the alarm logic when the light source to a sensor is placed in the standby mode.
Power failure to the UV Monitoring System will also cause an alarm condition. Some applications may
require suppression of the alarm if the power to the Monitoring System fails. To accommodate these
applications, a power on signal is available for remote use.

UVISENSOR INSTALLATION

2.
ONLY SKILLED PERSONNEL SHOULD ATTEMPT TO INSTALL UVISENSORS. HIGH
VOLTAGES AND HOT SURFACES MAY BE PRESENT AT THE LAMP SITES. TURN
OFF ALL POWER TO THE EQUIPMENT AND ALLOW SUFFICIENT TIME FOR THE
SYSTEM TO COOL PRIOR TO INSTALLING UVISENSORS.
Do not allow the UVISENSOR body or cabling to touch the lamp, lamp cabling or end caps. Allow at least
one inch clearance between the sensor and these areas to prevent arcing or insulation damage.
Note the UVISENSOR must be mounted such that the photo detector receives some reasonable amount of
UV light. That is, the detector must be able to "see" the lamp or its reflection. It is not, however, necessary
that the detector be in the focal plane of the lamp, and it is usually not desirable to do so due to the high
temperatures that may result. In addition, caution must be exercised to avoid any contact or proximity to
high voltages typically present in UV curing systems. Further, the sensor and cable should not be in contact
with hot surfaces (temperatures above 130º F).
The cables must be routed away from sources of electrical interference to maintain a quality measurement
signal. Care must be taken to route the cable so that mechanical restriction (such as pinching) or damage
(such as a break in insulation) is avoided to maintain a high quality signal. Connect the UVISENSORS to
the BNC type connectors located on the rear of the MultiBrite.

Clamp and Mirror Method

2.1
In this arrangement the UVISENSOR is mounted so that it views an area in the IRRADIATOR around a
single UV lamp. Figure 1 shows a typical installation. To obtain a suitable mounting location, locate an area
where the center of the mounting clamp and the center of the mirror can be mounted the same distance below
the lamp. Both pieces should be mounted to avoid contact with any moving equipment. The clamp and
mirror should also be located the same distance to the side of the lamp but still remain under the lamps
reflector.
4
WARNING