Specifications

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inPt – (Lin1) Selects a Linear Input Voltage setting (0-50mV) for use with the
ETS Model 554 RTD Temperature Sensor & Sensor Interface PC Board (0-
1VDC Input, 0-50mVDC Output).
unit – (°°C), (°°F) Selects process units. The process units can be changed
independent of the calibration settings. In other words, changing the setting from
°C to °F or any other units will not affect the calibration settings, it will only
change the units displayed.
5.3.5 LEVL 3 (Level 3)
Level 3 is the output configuration level. There are also features for calibration
adjustment and performance data reading.
OUTPUT CONFIGURATION
SP1.d – (SSd1) Do not change. Assigns heating control to the appropriate
output.
SP2.d – (SSd2) Do not change. Assigns cooling control to the appropriate
output.
SAFETY SETTINGS
Burn – (uP.SC) Do Not Change. Sensor burnout/break protection. This safety
setting will protect a system if the sensor quits working. All systems will be shut
down if the temperature rises above the hi.SC setting.
rEv.d – (1r.2d) Do Not Change. Select output modes: Direct/Reverse. Select
Reverse for Heating and Direct for Cooling.
rEv.l – (1n.2n) Do Not Change. Selects Temperature LED display mode.
Normal mode is selected for each LED. In normal mode, the lower left (red) LED
will light when the microprocessor calls for the cooling system and the upper left
(green) LED will light when the microprocessor calls for the heating system.
SPAn – (-60) Do Not Change. Changing the SPAn will affect unit calibration.
NOTE
The calibration settings (SPAn & ZEro) should not be altered. All calibration
should be performed on the Model 554 Sensor (Temp. & RH) directly, or through
the calibration potentiometers on the Model 518 ‘Sensor Interface Board’. The
SPAN adjustment pot on the ‘Sensor Interface Board’ is far more accurate than
the microprocessor setting.
ZEro – (0.0), (32.0) Zero sensor error, see SPAn.