Setting The Temperature; Set-Point Setup; Reference Probe (-R Models Only) - Fluke 917 Series User Manual

917X Series Metrology Wells

Setting the Temperature

Stability Alarm (STAB ALARM)
The audible alarm described in "Stability Limit" is turned on or off using this param-
eter. Select either "On" or "Off" using the right/left arrow keys and press "ENTER" to
accept the selection.
3.5 Setting the Temperature
The users guide explains in detail how to set the temperature set-point of the calibrator
using the front panel keys. The procedure is summarized here.
3.5.1

Set-point Setup

1. From the main screen, press "ENTER" once to access the "CONTROL SET
2. Press +/- to set a positive or negative temperature. If the "-" symbol is not
NOTE: Each time the instrument is turned off and back on, the "CONT
ENABLE" parameter is set to "Off".
3. The "CONT ENABLE" parameter enables or disables active heating or cooling
4. The scan rate of the instrument can be set from 0.1 to 99°C/min, however
When the set-point temperature is changed the controller will switch the thermoelec-
tric modules or heater on or off to raise or lower the temperature. The displayed well
temperature will gradually change until it reaches the set-point temperature. The well
may require 5 to 10 minutes to reach the set-point depending on the span. Another 5 to
10 minutes is required to stabilize with ±0.1°C of the set-point. Ultimate stability may
take 15 to 20 minutes more of stabilization time.
3.6 Reference Probe (-R models only)
The reference probe section of the user manual explains in detail how to set up the
reference probe of the calibrator using the front panel keys. The procedure is summa-
rized here.
16
POINT" menu.
present, the temperature is assumed to be positive. Use the number keys to set
the desired temperature. Press "ENTER" to set the temperature and continue
setting up the set-point information. If the other information in the set-point
menu does not need to be edited at this point, press "EXIT" to return to the
main screen
of the instrument. This parameter must be set to "On" for the instrument to heat
or cool. Using the right/left arrow keys, select "On" to allow the instrument to
heat or cool or select "Off" to disable heating and cooling.
the actual scan rate is limited by the natural heating or cooling rate of the
instrument. Use the number keys to set the desired scan rate and press
"ENTER".