Armstrong International
IOM-246-V2.0
Steam QM-3 Calibration
Page 9 of 14
Calibrating the Heater
Calibration #5: Calibrating the Heater
1. Turn off Steam QM-3 and unplug from power source.
2. Release latch on Harting connector and unplug from the Steam QM-3 cabinet.
3. With a calibrated ohmmeter measure the resistance between pin 8 and 16 on the Harting plug. The reading should
be between 100Ω and 200Ω (normal is about 150Ω). If the reading is lower than 100Ω or higher than 200Ω replace
the
heater.
4. If the reading is in accepted range, record it. The reading will need to be entered after the Steam QM-3 is powered up.
5. Plug the Harting plug into the Steam QM-3 cabinet, plug in the power cord, and turn on the Steam QM-3.
6. On the Steam QM-3 display pad, press left and right arrows simultaneously to access the code menu.
7. To access the resistance calibration menu, enter 069 using the up and down arrows to change numbers,
and the left and right arrows to change the position.
65
ß
8. Move the arrow to the Rheater line ( using up and down arrows).
9. Move the arrow to left of value and enter measured value rounded to nearest whole ohm value
(example 153.3 is entered as 153).
10. Confirm the re-calibration of the resistance of the heater by signing the relevant box on the re-calibration certificate.
noTE:
Any corrections to the calibration certificate must be done following good documentation practices. The error is crossed
through by a single line. The correction is written alongside with an explanation if necessary. The correction is signed and dated.
Harting plug being removed
Harting plug pin 8 and 16
Resistance calibration menu 069
Calibration
Rheater
P
10W
30W
Rheater
146
T3
`
m
65
ß
01
Heater
