Page: 6
Date: 06/09/2019
IN037 Rev 6 May 2019
T
HERMAL PROCESS EQUIPMENT SPECIALISTS
The
T2
LED located to the left of the small LED display, indicates when temperature
probe T2 is showing in the small LED display. This light is NOT activated on standard
Tankmaster controllers.
The
‘DB’
drop-back LED located to the left of the small LED display indicates when the
drop-back circuit is activated. This light is NOT activated on standard Tankmaster
controllers.
5.2
Liquid Level LED’s
The ‘
low
’ level LED indicates when the liquid level is below the low level sensor on the
level probe. This is standard on all Tankmaster controllers
The ‘
Alarm
’ level LED indicates when the liquid level is above the High High or Low
sensors on the second level probe. This LED indicator is NOT activated on standard
Tankmaster controllers configured for on one level probe.
5.3 Push buttons P1 to P3
These buttons are used to configure and display the various functions of the controller.
For the standard Tankmaster controller they are used to change the SET POINT and
should be operated as follows.
5.4 Setting the SET POINT
a) Press P1 once to display the SET POINT, which is shown in the main LED display as
‘
SP’
. The actual set point value is shown in the small LED display window below it.
b) Press P2 to decrease the set point value or P1 to increase it.
c) Once you have selected the desired set point value press P3 once to accept it.
5.5 Setting the Hysteresis
The main LED display will now show the letters HYC meaning Hysteresis Customer
setting. This is factory set to +/- 1 degree about the set point. If you wish to keep this
value press P3 once. If you wish to change it, press P1 and P2 to adjust and then press
P3 to confirm. Both displays will revert back to normal operation.
5.6 Calibration points A and B
Two potentiometers A and B have been provided to calibrate the Tankmaster against
temperature probes attached to it. These calibration points are located to the right of the
main LED display and are marked A and B. See Fig 2.
The Tankmaster is calibrated for use with a standard temperature probes, type TPOMKV
(0.5m probe with 2m flying lead) unless specified on the despatch paperwork. Should you
attach a longer temperature probe, it will be necessary to re-calibrate the controller in
order for it to display the correct temperature. Calibration point A is for calibrating