Teledyne 3350 - Microprocessor based control room monitor for personnel safety - Manual (Page 18)

3 Installation Model 3350
3-2
Teledyne Analytical Instruments
3.2 Installation
The 3350 is designed to be wall-mounted, in a general purpose, area.
The unit should be installed at viewing level in a sheltered area, if possible.
The installation consists of installing the MFC, connecting the rechargeable
battery (if applicable) and connecting the instrument to AC power..
Refer to the Outline diagram D-70679 for the physical dimensions of
the analyzer.
For CE Compliant Installation: If the unit is installed without the
power cord, a switch or circuit breaker must be installed in close proximity to
the analyzer to break both sides of the line with a rating of 3A at 250V~
minimum. The minimum recommended wire is 16 AWG 250VAC.
3.3 Installing the Micro-Fuel Cell
The Micro-Fuel Cell is shipped separately from the instrument and must
be installed before operating the instrument. Turn the instrument off and
disconnect the AC power.
To install the cell in the probe assembly:
1. Remove the probe from its holder on the outside of the
instrument case and remove the cell from its sealed shipping
package.
2. Unscrew the cap from the top of the probe assembly.
3. Remove the shorting clip from the cell.
4. Place the cell in the probe with the terminal end facing down
toward the probe contacts and the soft membrane surface facing
the outside.
5. Replace the probe cap, making sure that it is all the way down
and seated on the probe body, then replace the probe assembly
into its holder.
3.4 Electrical Connections
Figures 3-1 through 3-4 show the two alternate Model 3350 AC power
connections. The first illustration fig. 3-1 shows the AC powered version,
and the second illustration fig. 3-2 shows the DC battery backup version.
Both versions have identical connections for the External Probe, alarms, and
both digital and analog concentration outputs. For detailed pinouts, see the
wiring/interconnection drawings in the Drawings section at the rear of this
manual.