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| SERIES | 868 | D/P Sensor Control (Air Flow Control) | ||||
| FITINGS | 19 | None, 1/4” NPT | 39 | Polyflo; (4) 1/4” tube | 49 | Swagelok; (4) 1/4" tube (compatible with copper or poly tubing) |
| MILLIAMP OUTPUT | 108 | 4 mAdc to 20 mAdc 0-5 psid | 128 | 4 mAdc to 20 mAdc 0-15 psid | 148 | 4 mAdc to 20 mAdc 0-50 psid |
| 118 | 4 mAdc to 20 mAdc 0-10 psid | 138 | 4 mAdc to 20 mAdc 0-30 psid | 168 | 4 mAdc to 20 mAdc 0-2 psid | |
NOTE: Unit includes (1) water-resistant Hubbell cord grip.
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| Output signal | 4 mAdc to 20 mAdc (milliamperes) | |
| Accuracy | ±0.2% FS (±0.10% F.S., typical) includes non-linearity, hysteresis and non-repeatability | |
| Repeatability | ±0.20% of calibrated span | |
| Temperature range | 0 °F to 180 °F/-18 °C to 82 °C | |
| Compensated temperature range | 32 °F to 120 °F/ 0 °C to 54 °C | |
| Thermal effects (over compensated temperature range) |
Less than .007% °F (.011% °C) span shift—sensitivity Less than .007% °F (.011% °C) span shift—zero |
|
| Power requirement* | 14 Vdc to 40 Vdc | |
| Power supply stability (effect on FSO) |
Less than .005% of span change in output per volt change at input terminals | |
| Burst pressure | 200 psi | |
| Combined accuracy** | 0–5 psid trans./control 0–10 psid trans./control 0–15 psid trans./control 0–30 psid trans./control 0–50 psid trans./control |
±0.34% full scale ±0.27% full scale ±0.24% full scale ±0.22% full scale ±0.21% full scale |
| Compressed air requirement | 35 psid to 150 psig supply pressure at control inlet | |
| Maximum depth measurement | 1,937 inH2O (49.0 m water) | |
* Unregulated
** Combined accuracy refers to the primary accuracy of the sensor in combination with the secondary accuracy of the D/P transmitter.
| 7333-10 | Replacement filter element |
| 7334-2 | SafeGard service kit |
| 7334-9 | Air control section kit |
| 7879-20 | Vent generator |
| 9316-4 | O-ring for D/P top plate (868) |
WARNING: This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
