เครื่องบันทึกกราฟิก (Graphic Recorder)

Flatbed Pen Recorders Accept DC Voltage, Thermocouple and RTD Inputs

The easy-to-operate OMEGA® RD3721 and RD3722 flatbed pen recorders are sophisticated, high performance units which accept a wide range of input types. Features include a choice of measured data, bar graph or range data display modes. Versatile optional capabilities include GPIB or RS232C interface to handle data output and panel setting data, a memory card with a capacity of 256 K, mathematical functions, remote controls, alarms, outputs up to four points and °F range data display. The RD3721 comes with an electronic pen lift and printer. The RD3722 comes with a manual pen lift. Both units provide high speed recording (1600 m/sec max), an auto span shift mode and partially expanded-scale recording, whereby any portion within full scale can be expanded or reduced for each pen.

คุณสมบัติทั้วไป เครื่องบันทึกกราฟิก (Graphic Recorder)

• Accepts DC Voltage, 12 Types of Thermocouples and RTD Inputs
• Choice of Measured Data, Bar Graph or Range Data Display Modes
• Model RD3721 Has Printer and Electronic Pen Lift
• Alarm Outputs of up to Four Points (Optional )
• Optional GPIB or RS232C Interface U
• 250 mm (10") Chart
• 115/230 Vac Powered

คุณสมบัติทางทคนิค Specifications Measurements

1. Drive System: Automatic null-balancing digital servo mechanism with brushless DC servomotor
2. Type of Input: dc V, 1 mV to 200V FS; T/C Types J, K, E, T, N, C, J DIN, T DIN, R, S, B, Kp vs Au7Fe; RTD Pt100, Pt50, Ni100
3. Reference Junction Compensating Accuracy (T/C): ±0.5°C (10.9°F) for K, E, J, T, N, C, J DIN, T DIN (and KP vs Au7Fe); 1°C for R, S and B
4. Filter: 0.1, 1 Hz or OFF (selectable)
5. Zero Set: Adjustable
6. Measuring Cycle: 135 Hz
7. Standard Pen Offset Compensation: Average, max/min recording selectable, resolution on time axis: 0.05 mm, automatic sweep function for pen offset, data selectable pen offset compensation reference pen
8. Input Impedance: Approx 1Ω (Vdc and thermocouple)
9. Allowable Source Resistance: <1 KΩ (Vdc and thermocouple)
10. Maximum Allowable Input Voltage: 250 Vdc
11. Maximum Common Mode Voltage: 250 Vrms AC Common Mode Rejection: More than 150 dB at AC
12. Normal Mode Rejection: More than 50 dB at 50 or 60 Hz
13. Recording And Printing Pens: Disposable felt-tip pen cartridges (analog data)