热切换极性反转电源
斯派曼的MXR系列是调节良好的高性能DC-DC转换器。MXR的低波纹规格使其成为质谱仪和电子显微镜[1]的理想选择。MXR20在300uA时的额定电压为20kV，MXR30在300uA时的额定电压为30kV。两者都封装在屏蔽金属外壳中，可提供模拟或RS[1]232数字控制选项。这些装置具有控制输出极性反转的逻辑信号输入。提供电压、极性和电流监测器。数字版本还具有光隔离联锁输入（HV启用/禁用）。MXR系列易于定制以满足OEM要求，可提供电流控制、改进的纹波性能以及更高的电压和电流能力。
典型应用:
- 质谱分析
- 电子显微镜
- 毛细管电泳
- 静电印刷
规格
(Ref. 128116-001 REV. J)
OPTIONS
MXR can be ordered as an analog or a digital controlled unit. See How To Order information below.
Custom captive cable options available upon request.
SPECIFICATIONS
Input Voltage:
24Vdc (±5%)
Input Current:
≤1.25 A nominal continuous
≤4.5 A peak during reversing
Output Voltage:
0V to ±20kV (MXR20)
0V to ±30kV (MXR30)
Output Current:
<300μA
Voltage Regulation:
Load: <50ppm of maximum output voltage for a no load to full load change
Line: <20ppm of maximum output voltage for a 5% input line change
Programming and Monitor Accuracy:
±2% Voltage Programming/Monitor
Ripple:
20kV: 100mVp-p
30kV: 150mVp-p
Stability:
1hr = 10ppm max. after 1 hr warm-up
8hrs = 20ppm max. after 1 hr warm-up
Temperature Coefficient:
10ppm/°C
Reversing Time:
2s for +20kV to -20kV or +30kV to -30kV
settling to <3ppm, faster versions are available
Environmental:
Temperature Range:
Operating: 10˚C to 50˚C
Storage: -35˚C to 85˚C
Humidity:
0% to 85%, non-condensing
Cooling:
Convection cooled
Dimensions:
2.05˝ H X 8.47˝ W X 9.45˝ D (52mm X 215mm X 240mm)
Weight:
8.80 pounds (4.0kg)
Input Connectors:
Analog units: Power and Control: 12 way Samtec FWS 12-04-T-S-RA
Digital Units:
Power: 2 way Molex Mini-fit Jr 39-30-1022
Control: 10 way ‘IDC Ribbon cable’ connector 3M N3793-5302RB
Output Connectors:
Standard output is GES HB30 receptacle (GES p/n: 7331051). Mating plug is GES HS30 (p/n: 7331050, not included). Mating cable assembly can be ordered separately, see How To Order information below.
Regulatory Approvals:
UL recognized component (RC). File number E354595. Compliant to IEC/UL 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use; CAN/CSA-C22.2 No.61010-1. CE marked to EN 61010-1. UKCA marked to BS EN 61010-1. RoHS compliant. As the unit is designed for incorporation within the user's system it is not tested against any specific EMC standards. Compliance with any relevant EMC standards on a system level are the responsibility of the equipment designer.
ANALOG UNITS—POWER AND CONTROL 12 PIN SAMTEC FWS CONNECTOR
| PIN | SIGNAL |
|---|---|
| 1 | Current monitor output 0-10V = 0V to 500μA Zout=10kΩ, Accuracy ±5% |
| 2 | +24Vdc Input |
| 3 | Voltage monitor output 0-10V = 0V to Max V Zout=10kΩ, Accuracy ±2% |
| 4 | N/C |
| 5 | N/C |
| 6 | N/C |
| 7 | Voltage program input 0-10V = 0V to Max V Zin>1MΩ, Accuracy ±2% |
| 8 | Polarity set input, TTL levels: LO = +VE, HI/Open = -VE |
| 9 | Signal ground |
| 10 | Ground return for +24Vdc |
| 11 | N/C |
| 12 | Polarity status output LO (<200mV, source 1.5kΩ) = +VE, HI (+24V, source 2.2kΩ) = -VE |
DIGITAL UNITS—POWER 2 PIN MOLEX MINI-FIT JR
| PIN | SIGNAL |
|---|---|
| 1 | +24Vdc Input |
| 2 | Ground return for +24Vdc |
DIGITAL UNITS—CONTROL 10 PIN IDC RIBBON CONNECTOR
| PIN | SIGNAL |
|---|---|
| 1 | Transmit data (output) with respect to pin 2 |
| 2 | Serial signal ground return (if required) |
| 3 | Receive data (input) with respect to pin 2 |
| 4 | N/C |
| 5 | N/C |
| 6 | N/C |
| 7 | Interlock opto-isolator input (0mA = Voltage Inhibit) see* |
| 8 | Interlock opto-isolator signal return |
| 9 | Polarity set opto-isolator input (0mA = -VE) see* |
| 10 | Polarity set signal opto-isolator signal return |
| How to Order: | |
|---|---|
| Standard | Part No.: MXR20PN24 Part No.: MXR30PN24 |
| Digital (option): | PART No.: MXR20PN24/DCC2 PART No.: MXR30PN24/DCC2 |
| Mating cable, length 2m: |
Part No.: HVC30/1S/1279 |
表和图
DIMENSIONS: in.[mm]
SIDE VIEW
TOP VIEW
FRONT VIEW (Digital)
FRONT VIEW (Analog)
