ZIRCONIA OXYGEN PROBE OUTPUT (mV) - Novatech Controls

3.8 CONNECTING THE OUTPUT CHANNELS
The two 4–20 mA DC output channels are capable of driving into a 600 _ load. Refer to Figure 3.8.
3.9 CONNECTING THE ALARMS
Figure 3.8 Connections for Transmitter Output Channels.
The alarm relay functions are described in detail in Sections 4.2 and 4.3. Each relay, except for the horn relay, has
normally closed contacts. The contacts will open in alarm condition. The horn relay has normally open contacts.
All systems should have the alarm relay RL5 connected to Terminals 26 and 27, and the probe low temperature
relay RL3 connected. The probe calibration and horn relays are optional. Alarm wiring should be shielded.
3.10 CONNECTING THE HORN RELAY
The horn relay operates as a true alarm system and can be connected directly to a horn. The horn relay is latching
and can be reset by pressing the alarm button. Refer to Figure 3.9.
3.6 NOVATECH OXYGEN ANALYSER