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Honeywell
Honeywell DR4500A Classic Series Circular Chart Recorder
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Parámetros clave
Display
Vacuum fluorescent alphanumeric; 6-digit PV + 8-digit secondary; 21-segment deviation bargraph
Chart
12-inch circular chart; 5000+ preprinted charts available; pen-drawn analog traces (Classic)
Pens Channels
One-pen (1 input) or two-pen (2 inputs) models
Input Types
Thermocouple, RTD, 4–20 mA, 0–10 V and other low-level actuations; user-configurable type/range
Sampling Rate
Each input sampled 3 times per second
Digital Indication Accuracy
1 digit
| Parámetro | Valor |
|---|---|
| Display | Vacuum fluorescent alphanumeric; 6-digit PV + 8-digit secondary; 21-segment deviation bargraph |
| Chart | 12-inch circular chart; 5000+ preprinted charts available; pen-drawn analog traces (Classic) |
| Pens Channels | One-pen (1 input) or two-pen (2 inputs) models |
| Input Types | Thermocouple, RTD, 4–20 mA, 0–10 V and other low-level actuations; user-configurable type/range |
| Sampling Rate | Each input sampled 3 times per second |
| Digital Indication Accuracy | 1 digit |
| Input Impedance | 4–20 mA: 250 Ω; 0–10 V: 200 kΩ; others: 10 MΩ |
| Control | Optional 1 or 2 PID digital controllers (On-Off, PID-A, PID-B, PD with manual reset); Accutune II™; fuzzy overshoot suppression |
| Transmitter Power | Integral 22–26 Vdc (50 mAdc @ 24 Vdc) for up to two transmitters |
| Communications | Optional Modbus RS-485 |
| Alarms | Integral soft alarms; optional SPST alarm relays |
| Enclosure | Molded case, panel or surface mount; gasketed door with glass or acrylic; optional UL/FM NEMA4X door |
| Span Response | 6 s maximum with no filtering |
| Totalizer | Optional one or two 8-digit totalizers with multiplier and low-flow cutoff |