TS4000
25
3.6.2 Start-up Process
NOTE:
Powering on and off of the TS4000 is controlled from the external power supply; refer
to the power supply manual for instructions. If there is a problem with the start-up or
testing of the TS4000, contact General Monitors Customer Support. For contact
information, refer to Section 8.0.
Upon first power-up, the TS4000 should be allowed to stabilize while the Interface Module
attains the proper operating temperature. The TS4000 goes through the following process
during this time period:
•
During the Start-Up Mode, the LED display reads “
SU
”
•
The display will briefly read “
F5
” upon initial start-up or when the electrochemical cell is
replaced. The user needs to perform a sensor calibration to clear “
F5
”.
•
The unit then enters Operational Mode. It displays the current reading for the
electrochemical cell in the following format
:
•
##.#
for FS concentrations ( < ) less than 50
•
###
for FS concentrations (
≥
) greater than or equal to 50
NOTE:
If the reading is over the range of the electrochemical cell, the TS4000 registers “
OR
”.
3.7 Maintaining Explosion Proof Integrity
The TS4000 Base Unit and Interface Module are rated explosion proof for use in the following
hazardous locations:
•
CSA: Class I, Division 1, Groups B, C, D and Class I, Zone 1, Ex d IIB+H
2
, T6
Some of the factors that influence the explosion proof integrity of the TS4000 housing are:
•
Strength of the enclosure material
•
Thickness of the enclosure walls
•
Flame path between the housing and cover
•
Flame path of threaded joints
•
The acceptable limits for explosion proof housings that are used in Class I hazardous
locations are defined in CSA Standard C22.2 No. 30-M1986
Anytime the TS4000 Base Unit cover bolts or the Interface Module are loosened while power is
on, it is necessary to declassify the area. When replacing the cover, the gap between the lid
and the housing should be less than .0015 inch or .038 mm. Make sure that the flame-path is
free of dirt and debris before replacing the cover. Verify this by tightening the cover bolts to a
torque setting of 50 inch-pounds and using a feeler gauge to ensure the gap between the cover
and the housing is less than .0015 inch or .038 mm.
There are three unused entry holes in each TS4000 Base Unit housing: one on the left, one on
the right, and one on the bottom. These entry holes are used as follows:
•
To attach the TS4000 integral magnetic switch and wiring conduits to other devices, or
