Available Viewing Head Models And Associated Features - Honeywell 700 User Manual

HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
The standard electrical connector supplied with both the 700
and 800 viewing head models has two indicator LEDs inside
it: the green LED indicates signal pulses (helpful in
alignment), and the orange LED indicates self-check activity
between the signal processor and the viewing head (Fig. 4).
The green LED also flashes once per second when the
orange LED is pulsed as the viewing head sends an ID code
back to the signal processor.
Model Connector
S702 X
S702HF X
S702PF
S702HFPF
S706 X
S706PF
S706PF-050*
S802 X
S802HF X
S806 X
*S706PF-050 has a 50-ft (15 m) pigtail
All models include the following:
1. Electronic check (no mechanical shutter) for self-check of the system.
2. All IR viewing heads respond to flicker frequencies above 33Hz, with exception of the HF versions, which only respond to
flicker frequencies above 155 Hz.
The viewing heads, the viewing head connector, and the cable
provided are watertight, and have NEMA 4 and 4X ratings
when the connector is properly tightened with pliers and the
cable is protected from UV exposure.
66-2069—01
Table 1. Available viewing head models and associated features.
Pipe Fit Connection ½ in
NPTM with 10-ft (3.0m)
pigtail
X
X
X
X
Model 700 viewing heads are also available with a 1/2 in. pipe
fitting for connecting to electrical conduits. The four
connecting wires exit through an epoxy seal in the 1/2 in. pipe
fitting. The LED indicators are not present in the pipe-fitting
option. The pipe fitting models are identified by adding "PF" to
the model number.
The available models are shown in Table 1.
UVTron Frequency
Sensor IR Sensor Filter 155Hz
X
X
X
X
X
X
X
X
X
X
The availability of both UV-sensing and IR/flicker-sensing
viewing heads ensures that the flame monitoring systems can
provide good discrimination in virtually any application. UV
sensing is appropriate for monitoring natural gas, some mixed
gases and light oil flames. IR/ flicker sensing is appropriate for
monitoring heavy oil and coal flames.
2
High
Aluminum Stainless Steel
Housing
X
X X
X
X X
X
X
X
X
Housing
X
X
X