GRAS 12HF 用于低噪声系统的单通道电源模块
GRAS 12HF 用于低噪声系统的单通道电源模块
Connection: Traditional 200 V
通道数: 1
GRAS 电源模块 12HF 是用于单通道低噪声测量的电源，使用 GRAS 低噪声测量系统 40HF、40HH 或 40HT 的匹配低噪声前置放大器和高灵敏度传声器。
Technology
12HF 提供:
-
用于电容式传声器的极化电压（200 V）
-
为传声器前置放大器供电的电压电源（±15 V）
-
用于选择压力或自由场设置的前面板开关响应
Specifications
CONDITIONING
.
Frequency response (±0.2 dB)
Hz
2 to 20 k
Output channel(s)
1
Output impedance
Ω
30
Direct coupling input to output
No
Linear mode
No
Type
Traditional power supply (LEMO)
Input channel(s), traditional power supply
1
Preamplifier supply
V
+-15
Polarization voltage
V
200
Overload indication
Yes
PC controlable
No
POWER AMPLIFIER
.
External filter option
No
Power amplifier overload detection
No
Power supply, battery
4 x LR14 (C)
Power supply, external
Vdc
6 to 20
Battery low indication
Yes
Fuse
mA
315 (fast)
Temperature range, operation
°C / °F
-10 to +50 / 14 to 122
Weight
g / oz
620 / 21,870
GRAS Sound & Vibration 保留更改规格和配件的权利，恕不另行通知。
Ordering info
标配
标配一个电源适配器: | (根据订单所在国而定) |
GRAS AB0002 | Power supply 230 VAC to 15 VDC. EU-connector |
GRAS AB0006 | Power supply 230 VAC to 15 VDC. UK-connector |
GRAS AB0003 | Power supply 120 VAC to 15 VDC. USA-connector |
选配
| 12HF-S20 | 12HF Power Module (Excluding Power Supply) |
