MD 900 Series

1/3” DC Photosensor Module

Technical Specifications

Supply voltage

5 V dc

Supply current

< 280 mA

Settling time

< 1s (time to stabilize HV after supply voltage applied)

Over-illumination protection:

active quenching control (internal)

Current to voltage conversion factor

1 V/ 20nA (other values on request)

Output signal

0 ... 10 V dc **)

Output offset

± 3mV

Gain

0...3 V via ext. OpAmp circuit)

Active Quenching Control

TTL-Pulse, active high, RESET: internal via timer, typ. 1 s, external

via 5 V-pulse

Frequency bandwidth

DC to 1 kHz (other values on request, max. 20 kHz)

GATE voltage V

gate

5 V: h to l set time V

5 V: l to h set time V

High voltage pre-adjusted

1500 volts

Maximum ratings

Input voltage

+5.5 V

Operating temperature

5 to 40 °C

Storage temperature

-20 to 50 °C

Weight

~ 350 g

Operating Conditions

Performance Characteristics

Spectral response

0,1

1

10

100

100

200

300

400

500

600

700

800

900

Wavelength (nm)

C 911

C 942

C 962

C 921

C 952

C 972

C 943

C 973

C 983

C 982

C 922

C 944

Current Amplification vs Control Voltage

1,E+02

1,E+03

1,E+04

1,E+05

1,E+06

1,E+07

1,E+08

1,E+09

0,9

1,4

1,9

2,4

2,9

Control Voltage / V

*) Additional models on request

**) for long term operation: max. average output voltage of <

5 V (anode current of <100 nA) is recommended