Nortec Industries NHRS Series - Manual (Page 11)

10-10
Page 2
2008-02-18
1. CONTROLS
A. STANDARD CONTROLLERS
(1) NORTEC has a wide range of modulation packages for use with the NHRS
humidifiers. The packages all provide humidity controllers complete with point for
accuracy up to ±3%. For accuracy up to ±1% a high precision humidistat is
required.
B. FULLY INTEGRATED MODULATION ADAPTER
(1) The NORTEC NHRS includes all the circuitry necessary to accept a modulating
signal from most modulating humidity controllers with a set point supplied by
others. This allows the unit to easily interface with a Building Automation System.
(2) For more accuracy, the set-point is controlled at the humidifier and the integrated
controller can accept a direct transducer signal. The accuracy of the humidifier to
changing conditions will be dependant on the accuracy of the signal.
C. SIGNAL BY OTHER
(1) When modulating humidity controllers or transducer signals are supplied by others,
the NHRS humidifier can accommodate most standard signals, including:
(a) 0-10 vdc
(b) 2-10 vdc
(c) 0-5 vdc
(d) 1-5 vdc
(e) 0-20 mA
(f) 4-20 mA
Figure 1. Display Panel