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RD8904
Paperless Recorder
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-4 | $5,164.45 |
| 5-9 | $4,906.23 |
| 10-24 | $4,802.94 |
| 25-49 | $4,596.36 |
| 50-99 | $4,493.07 |
| 100+ | $4,389.78 |
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Product Specs
<< See all Product Models| Brand |
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| Accuracy | ± 0.05 % |
| Accuracy Detail | Voltage: ±0.05%, Current: ±0.05%, Thermocouple Type: J, K, T, E, N: ±1°C; R, S, B: ±2°C, RTD: ±0.4°C |
| Additional Features 1 | 4 Spare I/O slots |
| Approvals | CE, EMC |
| Burnout Current | 200 nA |
| CMRR | 120 dB |
| Cutout Dimensions | 138 x 138 mm |
| Data Interface | Ethernet, Modbus |
| Dielectric Strength | 3000 Vac 50/60 Hz for 1 minimum |
| Display Note | 6.1" TFT LCD, 640X480 pixel resolution, 256 colors |
| Display Resolution | 640 X 480 Pixels |
| Display Size | 155 mm (6.1 in) |
| Display Type | LCD |
| Enclosure Ratings | IP20, IP30 |
| Enclosure Ratings Note | Safety: CE; EN61010-1 (IEC1010-1) Overvoltage category II, pollution degree 2 EMC Emission: EN50081-1, EN61326 (EN55011 class B, EN61000-3-2, EN61000-3-3) Immunity: EN50082-2, EN61326 (EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-11, EN50204) |
| Height | 144 mm |
| Impedance Input | Thermocouple: 2.2 MΩ, RTD: 1.3 kΩ, Voltage: 2.2 MΩ, Current: 70.5Ω |
| Input Current | -3 to 27 mA |
| Input Note | Sensor Lead Resistance Effect: Thermocouple: 0.2 µV/Ω, 3-wire RTD: 2.6°C/Ω of resistance difference of 2 leads, 2-wire RTD: 2.6°C/Ω of resistance sum of 2 leads; Max Rating: -2 Vdc Minimum, 12 Vdc Maximum (1 min for mA input) |
| Input Type | Thermocouple, RTD, Voltage, Current |
| Input Voltage | 0 to 50 mVdc, 0-1 Vdc, 0-5 Vdc, 1-5 Vdc, 0-10 Vdc |
| Insulation Resistance | 20 MΩ @ 500 Vdc |
| Isolation | 430 Vac breakdown voltage among channels |
| Length | 174 mm |
| Measurement Type | Universal |
| Memory | Storage Memory on Board: 8 MB; CF Card: 128 MB standard; optional 1 GB |
| Mounting | 1/2 DIN Panel Mount |
| NMRR | 55 dB |
| Number of Inputs | 4 |
| Operating Temperature, Max | 50 °C |
| Operating Temperature, Min | 5 °C |
| RTD Type | Pt100 |
| Relative Humidity | 20 to 80% RH |
| Resolution | 18 bits |
| Sampling Rate | 5 Hz (5 updates/second) |
| Sensor Break Detection | Sensor opened for thermocouple, RTD and mV inputs; below 1 mA for 4 to 20 mA input, below 0.25V for 1 to 5V inputs, unavailable for other inputs; Within 1 second for thermocouple, RTD and mV inputs; 0.1 second for 4 to 20 mA and 1 to 5V inputs |
| Shock Resistance | 30m/s² (3g) for Operation, 100 g for Transportation |
| Storage Temperature, Max | 60 °C |
| Storage Temperature, Min | -25 °C |
| Supply Power Note | 90 to 264 Vac, 47 to 63 Hz, 60 VA, 30 W max (standard); 11 to 18 or 18 to 36 Vdc 60 VA, 30 W max (optional) |
| Supply Power Type | AC |
| Supply Voltage | 90 to 264 Vac |
| Temperature Measurement Range | J: -120 to 1000°C,K: -200 to 1370 °C,T: -250 to 400 °C,E: -100 to 900 °C,R: 0 to 1780 °C,S: 0 to 1780 °C,N: -250 to 1300 °C,B: 0 to 1820 °C,L: -200 to 900 °C;Pt100(Din): -210 to 700°C,Pt100(Jis): -200 to 600°C |
| Thermal Effects | ±1.5 µV/°C for all inputs except mA input ±3.0 µV/°C for mA input |
| Thermocouple Type | J, K, T, E, R, S, B, N, L |
| Vibration Resistance | 10 to 55 Hz, 10 m/s² for 2 hours |
| Width | 166 mm |
| See All Specs | |
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