Hach GS1440, Руководство пользователя

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N O T I C E
Do not point the measuring end of the sensor up or damage to the sensor can occur (e.g., during storage,
transport, calibration, installation and operation).
Keep the sensor at 0 to 40 °C (32 to 104 °F) or damage to the sensor will occur.
The GS1440 and GS2440EX sensors continuously measure the hydrogen sulfide (H
2
S)
concentration in liquids and air. Refer to Figure 1 .
The sensor is used with a device that supplies 4–20 mA loop power to the sensor and receives the
sensor measurements as a 4–20 mA analog signal or RS-232 digital signal.
The GS1440 is made for use in non-hazardous locations. The GS2440EX is made for use in
hazardous locations.
Figure 1 GS1440 and GS2440EX
1 Membrane 5 RS-232 connector
2 Sensor cap 6 Grounding screw (M6)
3 Status LED
3
( Table 4 ) 7 Power/4–20 mA connector
4 Attachment hook
Table 4 Status LED
Color Status
Green, one flash The 4–20 mA analog output represents 0–5 mg/L (liquids).
Green, two flashes The 4–20 mA analog output represents 0–1000 ppm (air).
Green and red flashes The sensor is in calibration/configuration mode.
Red, flashes Temporary (with calibration cap attached): Calibration was not successful.
Continuous (without calibration cap attached): There is a problem with the sensor.
3
The status LED continuously flashes while power is supplied to the sensor.
8 English