Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D
6 OPTIONAL HARDWARE AND SOFTWARE
Optional equipment offered with the M100AH includes:
1. Rack mount with slides (P/N 00280)
2. Rack mount without slides, ears only (P/N 01470)
3. Zero/Span valves assembly (P/N 0178603)
4. 4-20mA, isolated outputs (P/N 01471)

6.1 Rack Mount Options

The Rack Mount option including slides and ears, permits the Analyzer to be mounted in a
standard 19" wide x 24" deep RETMA rack. The Rack Mount option can also be ordered without
slides for applications requiring the instrument to be rigidly mounted in a RETMA rack.

6.2 Zero/Span Valves

The Zero/Span Valve option consists of a manifold with four valves. See Figure 2-5 for valve
location. Connections are provided on the rear panel for two (low and high) span gas and zero
gas inputs to the valves (See Figure 2-2). These valves can be actuated by several methods
shown in Table 6-1.
Table 6-1: Zero/Span Valve Operation
Mode Description Reference Section
1. Front panel operation via
CALS and CALZ
buttons.
Calibration Section 8 - Manual Zero/Span Check.
2. Automatic operation
using AUTOCAL
Setup and use of AUTOCAL is described in Table 6-2,
and Section 8.3.
3. Remote operation using
the RS-232 interface
Setup described in Table 7-1. Operation of AUTOCAL
described in Section 6.3 and Section 7.5.
4. Remote operation using
external contact closures
Section 8.5 - Automatic operation using external contact
closures. Table 8-7.
6-1