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pneumatic and electro/pneumatic positioner type 824 P / 824 E / 824 X / 824 D
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pneumatic and electro/pneumatic positioner type 824 P / 824 E / 824 D are analog controller, working on the principle of comparing forces and can be extended with several additional modules. The pneumatic nominal value input signal from a pneumatic controller or from an I/P-converter module creates a force on the diaphragm, that is compared with the spring force on the feedback shaft. The resulting difference of force is moving the gate valve, that is connecting the gear with the supply air and thus controlling the movement of the valve. The type 824 D controller has the protection class IP 65. |
| body material | cast aluminium / plastic | |
| protection class | IP 54, type 824.D IP 65 according to EN 60529 | |
| fitting position | arbitrarily | |
| climate class | operation | 4K3, but -20 ... +80 °C, low temperature version-40 ... +80 °C (on explosion-protected devices see electrical data) |
| vibration resistance | < 10g according to DIN 89011 recommended continuous operation for the whole armature ≤ 3 g | |
| CE mark | compliance with EMV-directive 2004/108/EC in line with EN 61326 A1 and NAMUR NE21 08.98 | |
| controller data | gain | max. 100 |
| hysteresis | < 0,7 % of the control range | |
| threshold | < 0,5 % of the control range | |
| linearity error | < 2 % of the control range | |
| draught dependency | < 0,2 % / 0,1 bar, type 824.P < 0,1 % / 0,1 bar | |
| dimensions | see dimension drawings figures 1 to 3 | |
| weight | type 824.P | appr. 1,8 kg |
| type 824.E a. 824.X | appr. 2,0 kg | |
| type 824.D | appr. 2,8 kg | |
| pressure gauge group | appr. 0,5 kg |
| air supply pressure | 1,4...6 barg | |
| air quality | solids | class 2 ISO 8573-1 (particle size ≤ 1 µm, particle density ≤ 10 mg/m³ i.N.) |
| dew point | class 2 ISO 8573-1 (-40 °C, minimum 20 K below ambient temperature, low temperature version < -50 °C) | |
| oil content | class 2 ISO 8573-1 (≤ 0,1 mg/m³ i.N.) | |
| air consumption | < 0,6 m³/h i.N., type 824.P < 0,5 m³/h i.N) in stationary operation | |
| flow rate | 6 m³/h i.N. bei 1,4 barg |
| pneumatic | not explosion- proof | explosion- proof intrinsically safe | explosions- proof flameproof enclosure | |
|---|---|---|---|---|
| electrical connection | see figure 4 | see figure 4 | see figure 4 | |
| input signal | 0,2 ... 1 bar | 0 / 4 ... 20 mA | 0 / 4 ... 20 mA | 0 / 4 ... 20 mA |
| partial ranges | 0,2 ... 0,6 ... 1 bar | 0 / 4 ... 10 / 12 ... 20 mA | 0 / 4 ... 10 / 12 ... 20 mA | 0 / 4 ... 10 / 12 ... 20 mA |
| load resistance | 170 Ω | 170 Ω | 260 Ω | |
| required load- voltage | 3,4 V | 3,4 V | 5,2 V |
| explosion-proof | intrinsically safe zone 1+2 (gas) | II 2 G EEx ia IIC T6 EG-type examination certificate TÜV 99 ATEX 1487X | |
| flameproof enclosure | II 2 G EEx d IIC T4/T6/T6 EG-type examination certificate DMT 02 ATEX E121X | ||
| inner capacity | negligible | ||
| inner inductance | negligible | ||
| admissible ambient- temperature on connection to electric circuit with ¹) | T4 | - 55 ... + 80 °C | U₀ ≤ DC 28 V, Ik≤ 120 mA, P ≤ 3,3 W |
| T5 | - 55 ... + 70 °C | U₀ ≤ DC 38,8 V, Ik≤ 60 mA, P ≤ 2,3 W | |
| T6 | - 55 ... + 60 °C | U₀ ≤ DC 42,5 V, Ik≤ 50 mA, P ≤ 2,1 W | |
| ¹) admissible ambient temperature with other electric circuits on demand | |||
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