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ADD FURNACE CO.,LTD. 
44 ซอยบรมราชชนนี 70 ถนนบรมราชชนนี แขวงศาลาธรรมสพน์ เขตทวีวัฒนา กรุงเทพฯ 10170 
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TECHNICAL DATA   
SPECIFICATION 
 
Models 
C7061A: 
C7061F: 
 
Self-checking UV flame detector in standard 
housing. 
Self- checking UV flame detector in explosion 
proof housing. Designed for use with: 
Color: Violet. 
Mounting flange (with heat block) and faceplate are 
separate to provide heat insulation and seal-Off. 
C7061F1003: 
Meets requirements (explosion-proof): EEx d IIC T6 
Construction: cast-aluminum Cover 
•
 
SLATE with R8001S1071 Flame Amplifier Module, or 
•
 
7800-series with R7861 Flame Amplifier 
 
 
Ambient Operating temperature ratings 
C7061A    -40°C to +70°C (-40°F to +160°F) 
(derate ambient 1°F for every 13°F of aspirator 
temperature over 160°F). 
C7061F:   -20°C to +70°C (-22°F to +160°F) 
 
Storage temperature ratings 
•
 
-51°C to +85°C (-60°F to +185°F)
 
 
Voltage and Frequency (applies to shutter) 
C7061A1020 115/230 VAC, 50/60 
Hz C7061F1003 115/230 VAC, 50/60 
Hz 
The System operates correctly at a nominal voltage (-15%, 
 
Flame Signal 
Measured at the flame signal terminals or via a display. 
SLATE: 2.0 to 8.0 Volts 
Color: Violet. Mounting flange (with heat block) and 
faceplate are separate to provide heat insulation and seal- 
Off. 
Enclosure 
C7061A1020: 
Meets IP66 enclosure requirements (indoor, outdoor 
protection; rain-tight, dust-tight, hose-directed water). 
 
C7061F1003:   IP65 according to DIN 40050 
 
Weight 
C7061A1020: 3.3 kg (7.3 Ib) 
C7061F1003: 6.3 kg (13.9 Ib) 
 
Mounting and orientation 
C7061A: Mounting flange with 1- i n c h NPT internal 
threads for attaching to sight pipe, including 
1 to 3/4-inch adapter bushing for 3/4-inch mount 
C7061F:   Mounting f lange with 1-inch NPT internal threads 
for attaching to sight pipe. 
For allowable mounting positions of model C7061A and F, 
see Page 9. 
R7861A: 1.25  to 5.0 Volts  Wiring Connections 
 
Flame Signal amplifier 
R8001S1071 Dynamic Self-Check Ultraviolet Amplifier 
Module 
R7861A1026, 1034 Dynamic Self-Check Ultraviolet amplifier 
(Order separately) 
 
Interchangeability 
Models C7061A1020 and C7061F are not interchangeable 
with 
 
Shutter frequency 
0.2 Hz, nominal. Interrupts the line-of-sight of the detector 
about  12  times  per  minute  to  provide  self-checking.  Any 
malfunction in the flame detection system results 
in a safety shutdown. 
 
 
Pressure rating of quartz viewing window 
C7061A1020: 138 kPa (20 psi) maximum. 
C7061F1003: 690 kPa (100 psi) maximum 
 
Dimensions 
C7061A1020: see figure 1. 
C7061F1003: see figure 2. 
Housing 
C7061A1020: 
Construction: cast-aluminum cover. 
C7061A1020: 
Terminal block 
Threaded lead wire opening in faceplate: 
1/2-14 NPSM internal threads for attaching conduit. 
One brass cable gland standard with housing. 
 
C7061F1003: 
Terminal block: 
Terminal block inside the housing, wire clamp type, 
removable screws (terminal lugs can be used). 
Cable entry holes: 
One brass cable gland Ex classification: EEx d IIC, is 
standard provided in the housing. 
Inner sheath diameter 6 to 12 mm 
Outer sheath diameter 8.5 to 16 mm 
Tightening torque: 
•
 
cable gland into rear cover plate: 20 Nm 
•
 
cap into cable gland: 3 Nm 
Serviceability 
Field replaceable viewing window and ultraviolet sensing 
tube, coil and shutter assembly. 
 
Maximum cable length 
30-50 
m between sensor and amplifier, depending on local 
conditions (presence of noise, parallel cables, etc.) 
Design life 
Ultraviolet sensing tube: 40,000 hours continuous  operation.