Troubleshooting Guide/Indicators - BriskHeat TTD Instruction Manual

Parameter Descriptions Continued
A3= Alarm 1 Configuration. Determines the alarm type: A3=off
alarm is disabled; A3=Lo alarm is activated if the ambient
temperature >=SP+A1 and deactivated if <+SP+A1-A0;
A3=Hi alarm is activated if the ambient temperature
<=SP+A1 and deactivated if >+SP+A1-A0.
A4= Alarm 2 Hysteresis. The differential associated with A5 pa-
rameter
A5=Alarm 2 Threshold. Number of degrees to the working set
point that initiates an alarm condition.
A6= Alarm 2 Exclusion Time. The amount of time the alarm is
disabled from instrument activation
A7= Alarm 2 configuration. Determines the alarm type: A7=off
alarm is disabled; A7=Lo alarm is activated if the ambient
temperature >=SP+A5 and deactivated if <+SP+A5-A4;
A7=Hi alarm is active if the ambient temperature <=SP+A5
and deactivated if >+SP+A5-A4
Access to all code protected parameters

Press SET for 8 seconds. The access code value 0 is shown on
the display. (Unit comes with code set at 0 from factory)

With the UP and DOWN arrows, code can be set to user needs.

Press SET to enter the code. If code is correct, the first parameter
label is shown on the display (SP)

Move to the desired parameter with the UP and DOWN keys.

Press SET to view the value on the display.

The value can be modified with the UP and DOWN arrows.

Press SET to enter the value and exit to text parameter.

Repeat until all necessary parameters are modified.

Press SET and DOWN at the same time to quit programming or
wait one minute and the display will automatically exit program-
ming mode.
®
BriskHeat Corporation. All rights reserved
TB4000 Bulb and Capillary
Temperature Controller
9
Indicators
BUZZER
In the event of alarm or error condition, the internal buzzer is activated. To
silence the buzzer, press and hold the SET and Down keys for 2 seconds.
LED INDICATIONS
• OUT = Indicates that the heater is on.
DISPLAY MESSAGES
In normal operation, the sensor temperature will be shown on the display. In
case of alarm or error, the following messages will be shown:
• Er = Memory Error / Controller Error
• -- = Short-Circuit Thermocouple Error (Disconnects output).
• oo = Open Thermocouple Error (Disconnects output).
CONTROLLER OPERATION:
Once the controller reaches set point, the heater will turn off and will not turn
on again until the temperature falls 5°F below the set point.
The controller will sound an audible alarm if the temperature at the sensor
exceeds 15°F above the set-point.
TROUBLESHOOTING GUIDE
Please read this guide prior to contacting BriskHeat
to answer the most commonly asked questions. If you are unable to identify
the problem or need additional assistance, please contact your local distributor
®
or BriskHeat at 1-800-848-7673 (U.S. & Canada), 1-614-294-3376 (World
wide), or bhtsales1@briskheat.com.
Controller does not function
1. Check fuse: Unplug the unit from its power source. Remove the fuse and
check its continuity. If the fuse is defective, replace it with an Class CC 15 amp
fuse. Fuses may be obtained from most electrical supply houses.
2. Check fuse position: Fuse is position specific. Ensure nipple of fuse is facing
down away from fuse cap.
3. Check power source: Using a voltmeter, test the power source and assure
correct voltage is present.
4. Check thermocouple: Using a thermocouple meter, test the sensor to assure
proper function.
®
BriskHeat Corporation. All rights reserved
TB4000 Bulb and Capillary
Temperature Controller
®
. This guide is designed
10