설명The PT-104A is a four-channel, high-resolution temperature data acquisition module for use with PT100 and PT1000 RTD sensors. It can also be used to measure resistance (375 Ω and 10,000 Ω ranges) and voltage (115 mV or 2.5 V ranges). In PT100/PT1000/ resistance mode, the unit uses a four wire circuit. In voltage mode, the input connector can be treated as a differential input with ground, or two single-ended inputs. Both inputs must be 0V or above, though it does not matter which input has the higher voltage. For the 115 mV voltage range, the accuracy may vary by 2%, and the temperature coefficient will be 100 ppm/°C.
|PT-104A Platinum Resistance Data Logger|
|Range||-200 to 800°C|
(-328 to 1472°F)
|0 to 375 Ω1|
0 to 10 kΩ
|0 to 115 mV|
0 to 2.5V1
|Linearity||20 ppm||20 ppm||20 ppm|
|Accuracy @ 25°C||0.01°C1||20 ppm1||0.2%1|
|5 ppm/°C||5 ppm/°C||100 ppm/°C|
| RMS Noise|
|0.01°C||10 ppm||10 ppm|
|Resolution||0.001°C||1 µ Ω||0.156 µV|
| Conversion Time|
|Number of Inputs||4|
|Connectors||4-pin mini DIN|
|Input Impedance||>>1 MΩ|
|Power||Powered by USB or Ethernet:|
USB 1.1: 5 V ±10% @ <100 mA
USB 2.0: 5 V ±10% @ <200 mA
Ethernet: 48 V ±20% @ <40 mA (<2W)
|Environmental||20 to 30°C (68 to 86°F) for stated accuracy,|
0 to 70°C (32 to 158°F) operating,
20 to 90% RH
|Software||Logging Software for 32-bit or 64-bit editions of Windows XP|
(SP2 or greater), Vista, 7.
Software Development Kit containing drivers and example code for C,
C++, Excel and LabView.
|Ethernet Port||Conforms to IEEE 802.3 10Base-T.|
Compatible with 10/100/1000Base-T networks.
Conforms to IEEE 802.3af Power-over-Ethernet (PoE).
|USB Port||Conforms to USB 2.0 full-speed (12 Mbps)|
|Computer Interface||USB or Ethernet|
|Dimensions||36 H x 135 W x 184 mm D (1.42 x 5.31 x 7.24")|
|Weight||500 g (1.1 lb)|
|1 Quoted accuracy is for options marked|