Chentronics iScan 3 - Thermal Protection

RELATED DOCUMENT – MUST COMPLY WITH SCHEDULE DOCUMENT(S):
CERT-iS3 MNL, CDM-10000105, 106, 107, 108, 109, 110,
113, 119, 167, 188, 191, 192
FOR A LIST OF RELEVANT PATENTS
AND TRADEMARKS PLEASE SEE
CHENTRONICS.COM/LEGAL-NOTICES
iScan®3 MANUAL
PAGE 7 OF 22
ISO 9001 CERTIFIED
DRAWN BY:
AR
ON:2021-MAY-14
LAST REV BY:
AR
ON:2022-AUG-01
DCO No.
14724
DWG. No. MNL-ISCAN3
REV. F
THIS DRAWING OWNED BY CHENTRONICS. IT IS
CONDITIONALLY LOANED AND IS TO BE RETURNED UPON
REQUEST. THE BORROWER BY RECEIVING IT HAS AGREED
NOT TO REPRODUCE NOR COPY IT IN WHOLE OR IN PART NOR
TO FURNISH INFORMATION FROM IT TO OTHERS NOR TO
MAKE ANY USE OF IT THAT IS OR MAY BE INJURIOUS TO
CHENTRONICS. FOR MORE INFORMATION, PLEASE CONTACT
CHENTRONICS AT +1.607.334.5531.
TOLERANCE NOTES
FABRICATED TOLERANCES
≥ 2 ft (610 mm) ± 0.250 in (6.4 mm)
< 2ft (610 mm) ± 0.125 in (3.2 mm)
MACHINED TOLERANCES
± 0.050 DECIMAL DIM (1 PLACE)
± 0.010 DECIMAL DIM (2 PLACES)
± 0.005 DECIMAL DIM (3 PLACES)
MNL-ISCAN3
REMOTE FILE SELECT
The Remote File Select feature provides a means for selecting one of the configuration files within the
scanner. Single-Burner, “SB,” models have limited programmability, while Multi-Burner, “MB” models
have a high degree of programmability, as outlined in the table below.
2.2 Thermal Protection
The iScan®3 Flame Scanner has redundant safety features for exposure above the maximum temperature
rating. The modes of operation are described below:
Mode
Internal Temperature (T
INT
)
4-20 Output Setting
Indicator Light Setting
Relay Operation
Normal
T
INT
≤ 95°C
Normal (4-20 mA)
Normal
Normal
Warning
95°C < T
INT
< 100°C
3mA steady
Alternate left half yellow 0.5s
/ right half yellow 0.5s
Normal
Fault
100°C < T
INT
≤ 105°C
2mA steady
Blink yellow 0.5s on 0.5s off
Relays Open and will not
Close
Disable
T
INT
> 105°C
1mA steady
Yellow Solid
Relays Permanently Open
and will not Close
Scanner PN
USER PROGRAMMABLE FEATURES (with iScan Software)
4-20 mA
Signal
Mapping
4-20 mA
Calibrate
4-20
mA
Gain
Secondary Relay:
Redundant Flame
N.O. or N.C. -or-
Fault N.O. or N.C.
Detection
Settings:
Gain, Freq,
Threshold
Multiple Files
Select
(Max of 4)
Response Times
(Flame On/
Flame Off)
04005000-SB
YES
YES
YES
YES
NO
NO
NO
04005000-MB
YES
YES
YES
YES
YES
YES
YES