Omega Engineering OS1592 - Manual (Page 10)

The Emissivity setting as well as the temperature Engineering unit (°F or °C) are
stored in the non-volatile memory. Removing the main power will not erase or
change these settings.
3.1 - Changing the Temperature from °F to °C (or vice versa)
Press the key to go to either the MAX , MIN, or DIF display mode.
Press the key to change the temperature display from °F to °C or vice
versa. The analog output 1 (1 mV/Deg) also follows the temperature
display unit.
3.2 - Turning on the Display Backlight
Press the key to go to either the MAX, MIN, or DIF display mode.
Press the key to turn the display backlight ON or OFF.
3.3 - Using the Alarm Function
1. Press the key to go to the HAL display mode.
2. Press either the or keys to set the high alarm value.
3. Press the key to enable the high alarm function. The icon
appears on the display.
If the temperature exceeds the high alarm set point, the unit goes into
an alarm condition. The icon on the display flashes, the alarm red
LED turns on, and the internal relay energizes. The relay contacts are
brought out to the terminal block J101 for ease of access.
4. To disable the high alarm function, press the key again, and the
icon disappears.
1- The alarm temperature value as well as the alarm status are stored in the non-
volatile memory. As a result, removing main power will not erase or change these
settings.
2- The alarm deadband is 10°C or 18°F.
3.4 - Analog Output vs. Temperature
The following equations relate the analog outputs of 4-20mA, 0/5VDC,
0/10VDC to measured temperature:
4-20mA: Measured Temperature =
[
(mA Output – 4) x (T2 - T1)
]
+ T1
16
SET
MODE
OS1592 Infrared Fiber Optic Thermometer/Transmitter
3
5
NOTE:
NOTE:
MODE
MODE
°F–°C
SET