Fluke Biomedical 943-35 - Manual (Page 7)

Introduction
Specifications
1
1-3
Detector
Dimensions 943-35: 9.5 x 2.5 in (24.1 x 6.4 cm)
943-36, 943-36H: 9.5 x 2.5 in (24.1 x 6.4 cm)
943-37, 943-237A: 10.5 x 2.5 in (26.7 x 6.4 cm)
Weight Approximately 3 lbs (1.4 kg)
Housing Material Stainless Steel
End Window Material 943-36, 943-36H: Aluminum
943-35,943-37, 943-237A: Stainless Steel
Photomultiplier Tube 2 inch photocathode, 10-stage, integral crystal
Crystal Size 943-35, 36, 36H: 1.5 in diameter x 1 in thick
943-37,943-237A: 2 in diameter x 2 in thick
Crystal Material 943-3X: Sodium Iodine (Nal)
943-23X: Sodium Iodine (Nal) with Americium
Power Requirement +1000 VDC @ 500, +15 VDC @ 15 mA,
-15 VDC @ 50 mA
Connector MS3106E 2427B (supplied with detector)
Detector Cable Length 8 feet (2.4 meters) (supplied with detector)
Cable Type 50-111: (two 50 ohm coax and two #18 AWG)
Interconnecting Cable 50-100: (one 50 ohm coax, one 75 ohm coax, two #18 AWG, four #18
AWG twisted pairs)
Operating Temperature 32° to 122°F (0° to 50°C), (160°F for 943-36H)
Storage Temperature 32° to 122°F (0° to 50°C), (160°F for 943-36H)
Relative Humidity 0 to 95% non-condensing
Maximum Pressure 15 psig (without well)
Preamplifier
Rise Time < 250 ns
Input Impedance > 50 kilo ohms
Output Coupling AC
Voltage Gain 6.1 V/V
Configuration Voltage Sensitive
Current Polarity Negative
Output Impedance 50 Ohms
Maximum Cable Length 1500 Feet
Max. Pulse Amplitude @ -6 VDC
Max. Cable Length