1.1.1 International Power Settings
Switch AC voltage selector switch to 220 or 115 VAC as
applicable. Select 115 VAC for use on power systems
between 90 and 130 VAC (JP, US, CA). Select 230 VAC for
use on power systems between 180 and 260 VAC (EC, AU).
1.1.2 Power Cord
Connect power cord to power input then into main wall
socket. The standard male power plug on the back of the
ILT1700 accepts power cords from many different countries
and power systems.
1.1.3 Select AC Power Source
Switch AC / BAT selector to AC position for operation
using an alternating current power supply. The internal
lithium batteries will automatically recharge whenever the
ILT1700 is plugged into an external power supply. The
rechargeable Batteries(NICAD ONLY) must initially be
charged before the first use on battery power.
1.1.4 Plug In Detector
Connect detector to sensor input via the 15 pin D-Sub-
Min connector labeled SENSOR INPUT. The D connector
is wider on the top than on the bottom. The plug must be
aligned properly with the socket for the two to mate.
1.1.5 For More Information
Refer to section 2.2 for more detailed information
1.2 Front Panel Set Up:
1.2.1 Turn Power On
Press POWER switch. AC LED indicator should be
illuminated. If not check rear panel switch to ensure it is in
the AC position. (see section 10.4 if unit does not power up)
1.2.2 Store Sensitivity Factors
Enter sensitivity factor from detector calibration
certificate.
a. Press Factor Display button.
b. Press FACTOR SELECT button until 0 appears in
window above button.
c. Enter sensitivity factor by pressing MSD,LSD &
EXP buttons. Enter the number and exponent as it is
shownon your calibration certificate. This factor is now
permanently stored as factor number 0.
d. Repeat steps b & c for additional factors. Ten factors
can be stored in this manner. Remember to increment
button to next factor number before entering new factors.
1.2.3 Display Data
Press DATA/FACTOR/DISPLAY button. ILT1700 is now
ready to display data.
1.2.4 Bias Selection
Press 5V Bias button if you are using vacuum photodiode
type detector (SED240 or SED220), or for flash
measurements.
1.2.5 Zero The Detector
Cover detector with opaque object, wait ten seconds and
press ZERO button. For ambient zero simpl y press zero button
for over one second and release. (will subtract current zero from
all future readings) To return to internal zero, unplug the
detector and press zero.
1.2.6 Select Measurement Mode
Select measurement function by pressing either D.C. (signal)
button or INT button for continuous or integrated readings.
Remember INT will sum up the signal over that integration
time and D.C. mode will read the average steady state
light levels.
1.3 Begin to Measure
1.3.1 Install Detector
Plug a detector into the Sensor Input. Select the
appropriate calibration factor for that sensor combination
using the factor select button.
1.3.2 Zero the Detector
First you must decide if you want a dark zero, or an
ambient zero. An ambient zero will subtract the ambient light
levels from future readings, remove the black protective cap
and press zero for over one second. If you want a dark zero,
assure the black cap is on or cover sensor with an opaque
object, wait 10 seconds then press zero for over one second.
Wait for zero LED to turn off. (for high gain and thermopile
detectors, do not hold the sensor while zeroing , and be sure to
completely block all light with an opaque object )
1.3.3 Operating in D.C. Signal Mode
The ILT1700 default operating mode is D.C.(signal)
mode. If the D.C. LED is not lit, press the D.C. button to
enter D.C. mode. The ILT1700 samples continuously,
updating the display every half second.
To measure as a percentage of a known peak value, first
establish the peak condition, then press the SET 100% button.
ILT1700 reads as a PERCENTAGE of the set value.
To measure within a fixed range, turn off the Auto Range
feature by pressing the AUTO RANGE button. The exponent
on the display will not change when the Auto Range LED is
off. The ILT1700 default setting is Auto Range On.
Hold a reading temporarily by pressing the
HOLD button. This freezes the display for use in a
darkroom.
1.3.4 Operating in Integrate Mode
Press the INT button to begin integrating
(summing) all readings. This feature is useful for making
dose measurements.
Press the HOLD button to temporarily pause
the display. The integration continues, however, allowing
you to write down interim readings.
Press the HOLD button again to continue
displaying the ongoing integration.
Note: the Zero level that you set previously is
subtracted continuously from all integrated readings. You
can reset the Zero and integral in Integrate mode by pressing
the ZERO
button in the dark or ambient condition.
Press the D.C. button to stop the integration.
6
1.1 Power
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