HONEYWELL MODEL 700/800 SIGNAL PROCESSOR AND VIEWING HEAD
66-2069EP—08 2
1. All models include Electronic self-check.
2. Flicker Frequency filter settings available for IR sen-
sor models.
3. Gain Selection available through Signal Processor.
The viewing heads, the viewing head connector, and the
15 foot cable provided are watertight, and have IP64
ratings when the connector is properly tightened with
pliers and the cable is protected from UV exposure.
The availability of both UV-sensing and IR/flicker-sensing
viewing heads ensures that the flame monitoring systems
can provide good discrimination in most single and some
multiple burners firing a single fuel. 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.
SPECIFICATIONS
Series 700 and 800 Viewing Heads
MODELS S702, S702PF, S706, AND S706PF
MODELS S802 AND S806
Electrical
24VDC Power is supplied by Signal Processor
Environmental
Viewing Head Sealing: IP64 rated when the metallic con-
nector ring is tightened with pliers and a UV protection
is provided for the cable by installing in conduit.
Ambient Temperature: -40°F to 185°F (-40°C to 85°C)
CSA for CLASS I, DIV 2, GROUPS A, B, C, D, T4A
-40°F to 149°F (-40°C to 65°C) IECEx CSA Ex nA IIC T4 Gc;
NCC/Inmetro NCC15.0071X Ex nA IIC T4 Gc IP64
IR Detector Spec
S702, S702PF, S802: Germanium photodiode with spec-
tral response 950nm to 1710nm (1/2 intensity points)
and peak spectral response at 1400nm
High Pass Filter Pickup: 33 Hz standard
IR Optical
Angle of View: 1 degree (1.45 in. dia. at 6 ft. or 3.7 cm dia.
at 1.8 m)
UV Detector Spec
S706 & S706PF, S806: UVtron with spectral response
185nm to 260nm and a peak response at 210nm
UV Optical
Angle of View: 5 degrees (1 inch per foot)
Cable & Connectors - S70X/S80X Viewing Heads
New installations - highest level of EMI shielding avail-
able:
ASY782 -->15 foot C330S cable with pre-wired ASY786
connector
.
ASY785 --> 50 foot C330S cable with pre-wired ASY786
connector.
ASY785-200 --> 200 foot C330S cable with pre-wired
ASY786 connector.
ASY786 --> Field wireable connector with shield.
Dimensions
Refer to Fig. 10 and Fig. 11.
Model 700ACSP & Model 700DCSP Signal
Processer
Electrical: Model 700ACSP
Primary Input Power: 85-265VAC, 50-60 HZ, 0.07A Max.
fused (with either V.H. connected)
Battery Backup Voltage: 22VDC to 26VDC, 0.2A DC Max.
fused (with either V.H. connected)
Electrical: Model 700DCSP
Primary Input Power: 22VDC to 26VDC, 250 mA Max.
fused (with either V.H. connected)
Battery Backup Voltage: 22VDC to 26VDC, 0.5A DC Max.,
fused (with either V.H. connected)
Outputs
Flame Relay: 2 form C contacts
Self-Checking Relay: 1 form C contact
Relay Contact Ratings: 5A at 125 VAC, 277 VAC, & 30 VDC;
1/8 HP 125 & 250 VAC
Analog Flame Signal: Isolated 0 to 20 mA or 4 to 20 mA
output for remote meters or DCS, 360 ohms maximum
resistance
Environmental
Ambient Temperature: 32°F to 140°F (0°C to 60°C)
Dimensions
Refer to Fig. 12 and Fig. 13.
Table 1. Available viewing head models and associated features.
Model
Connecto
r
Pipe Fit Connection
0.5 in. NPTM with 10-
ft (3 m) pigtail
UVTron
Sensor
IR
Sensor
High
Frequency
Filter 155Hz
Aluminu
m
Housing
Stainless
Steel Housing
S702 X X X
S702PF X X X
S706 X X X
S706PF X X X
S706PF-050
X
50 ft (15 m)
X X
S802 X X X
S806 X X X
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