IL1700 RESEARCH RADIOMETER

10 Decade Dynamic Range 0.1 Percent Linearity 40 Decade Integration Range Light Integration up to 18 Years 10 Calibration Factors in Memory Direct Reading in any Units Remote Control of Functions Darkroom Hold Reading Feature Selectable Reverse Bias (0 or 5 V) 115/230 VAC, 8-15 VDC, Battery Power Built-In NiCad Battery Recharger Analog Recorder Output (0-1 volt) RS232C and TTL Digital Outputs Automatic Zeroing Automatic 100 Percent Automatic Ranging (On/Off)

The 'ZERO' button nulls the ambient signal to zero. The 'D.C.' button selects direct measurement mode. The 'INT' button selects light dose integration mode. The 'HOLD' button freezes the display and sends data to the optional printer.

The 'AUTO RANGE' button selects either automatic or fixed range. The 'AUTO 100%' button sets the displayed signal to 100 percent.

The '5 V BIAS' button provides an additional 5 volt reverse bias for flash integrations and for all vacuum photodiode detectors.

The 'DATA/FACTOR DISPLAY' button selects either detector output or sensitivity factor display.

The 'FACTOR SELECT' button increments through the 10 sensitivity factor memory registers.

The 'MSD', 'LSD' and 'EXP' buttons allow the user to adjust the sensitivity factor.

The 'POWER' button turns the power on/off.

An AUTO SHUT-OFF feature automatically turns off the instrument if idle for more than 10 minutes in battery mode.

'BAT' and 'AC' LED's indicate the power source, with low battery warning.

The 'CHG' LED indicates batteries recharging.

The 'OUTPUT RECORDER/TTL' port allows simultaneous autoranging analog recorder output (0-1 volt) and TTL digital data (0-5 volts).

The 'AC VOLTAGE' switch selects 115 or 230 VAC.

The 'COMPUTER/PRINTER' switch configures the standard 'RS232C DIGITAL OUTPUT' connector to match DTE or DCE equipment.

The 'SOURCE AC/BAT' switch selects AC or battery power.

The '90-130/180-240 VAC' power input plug accepts the provided AC power cable.

The detector cable plugs into the 'SENSOR INPUT', which also provides voltages of +15 V, 5 V, and -9 V for various sensor probes.

The 24 line, card edge connector labeled 'ACCESSORY INPUT' allows various input/output functions: auxiliary power input, recorder output, RAM voltage check for constant memory, and remote operation of 'ZERO', 'D.C.', 'INT', and 'HOLD' functions.

ELECTRICAL / MECHANICAL:

Dynamic Range: 2 x 10^-13 to 2 x 10^-3 A.
Min. Resolution: 0.01 x 10^-11 Amperes.
Linearity: ±0.1%, top 8 decades; ±0.2%, ±1 digit, bottom 2 decades.
Display: 3 1/2 digit + 1 1/2 digit exp.
Display Range: 1.000 x 10^-19 to 9.99 x 10⁺¹⁹ display units.
Input Impedance: Virtual Ground (op-amp summing node).
AC Power: 90-130 / 180-240 V, 50-400 Hz.
DC Power: 8-15 V external, or 6 internal 'C' cells.
Max Power: 11 Watts.
RS232C Output: DTE or DCE, ± 8 V.
TTL Output: 0 to 5 V.
Recorder Output: 408 Ω impedance, 100 to 1000 mV, ranging every decade, current limited.
Size: 90 mm x 220 mm x 240 mm (3.5" x 8.7" x 9.4").
Weight: 2.3 kg (5.1 lbs.).

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