DSPEC 50
®
and DSPEC 502
®
Digital Gamma-Ray Spectrometer User’s Manual 932502G / 0618
Power 100–240 V ac, 47–63 Hz, 110 watts. For 100 or 120 V ac line voltage, one fuse, 2 A
(SB) size 3AG required. For 230 or 240 V ac line voltage, two fuses, 1 A(T) size 5×20 mm
required.
CE Conforms to CE standards for radiated and conducted emissions, susceptibility, and low-
voltage power directives.
6.2. Feature Mask Bits
The following table describes the feature bits from the SHOW_FEATURES and
SHOW_FEATURES_EXT commands. If the feature is supported in the DSPEC 50 the bit is set
to 1; if the feature is not supported, the bit is 0.
Bit Meaning
0 Software-selectable conversion gain
1 Software-selectable coarse gain
2 Software-selectable fine gain
3 Gain stabilizer
4 Zero stabilizer
5 PHA mode functions available
6 MCS mode functions available
7 List mode functions available
8 Sample mode functions available
9 Digital Offset (e.g., 920)
10 Software-selectable analog offset
11 HV power supply
12 Enhanced HV (SET_HV, SET/SHOW_HV_POL, SHOW_HV_ACT)
13 Software-selectable HV range (ENA_NAI, DIS_NAI)
14 Auto PZ (START_PZ_AUTO)
15 Software-selectable manual PZ (SET/SHOW_PZ)
16 Battery-backed, real-time clock (SHOW_DATE/TIME, SHOW_DATE/TIME_START)
17 Sample changer support (SET/SHOW_OUTPUT, SHOW_INPUT)
18 One-button acquisition (ENA/DIS/SHOW_TRIG_SPEC, MOVE)
19 Nomadic (likely to move between opens)
20 Local app data (SET_DATA_APP, SHOW_DATA_APP)
21 Software-retrievable serial number
22 Power management commands
23 Battery status support (SHOW_STAT_BATT)
24 Software-selectable AMP polarity (SET/SHOW_GAIN_POLAR)
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