Sensaphone CELL682 - Manual (Page 26)

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Cell682 User’s Manual
Figure 9: Input A2 configured for temp, A3 configured for 4-20mA
Temperature: The unit will accept 2.8K or 10K thermistors. These should be wired
to an Analog Input terminal and the adjacent ground terminal. For compatible
thermistors check the accessory list or thermistor data in the appendices. 10K
Thermistor temperature range: -60ºF to 175ºF (-51ºC to 79ºC).
4–20mA: A 4–20mA transducer requires you to have an external DC power supply
for the transducer. Connect the positive wire of your transducer to the positive ter-
minal of your DC power supply. Connect the negative terminal of the transducer
to an Analog Input terminal on the Cell682. Connect the negative terminal from
your power supply to the adjacent ground terminal on the Cell682.
Figure 10: A thermistor and a 4–20mA transducer connected to the unit
wiring recoMMendations
The Cell682 will work fine in indoor environments using unshielded cable. When
wiring will be subject to long lengths (>100’) or if run outdoors, it is highly recom-
mended that shielded cable be used and that the shield be connected to an earth