Det-Tronics SW9200x Slickwatch IR Oil Detection System - Manual (Page 6)

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MODE
The MODE selector switch permits adjustment of the
instrument’s response time and testing of the alarm
relays.
Align
A shorter response time (approximately 2 seconds) is
used only during the alignment and testing process.
Operate
A longer response time (approximately 20 seconds) is
used during normal operation to compensate for short
term signal variations and to prevent the oil alarm from
activating on short oil slicks.
Test
Test mode activates the oil alarm circuits.
OIL ALARM
Adjust
The OIL ALARM adjustment potentiometer is used to set
the threshold at which the RATIO voltage energizes the
oil alarm relay. The OIL ALARM is adjustable from 10%
full scale to 100% full scale. This adjustment is disabled
when the Film Thickness Discriminator optional p.c.
board is used. When the Selectable Criteria Alarm
optional p.c. board is installed, this control sets the
threshold at which the selectable criteria alarm circuit is
activated.
Figure 2—Front Panel Controls
ZERO
OUTPUT
OPERATE
ALIGN
TEST
O
V
mA
LO
MID
HI
CALIBRATION
ADJUSTMENT
SET-
POINT
RATIO DENOM NUM
MODE
SENSITIVITY
VAPOR ALARM OUTPUT
SIG GND OUT OPT
OUTPUT
SELECT
A1395
SPARE
FUSE
1 A
FUSE 1 A
ADJUST