PRODUCT OVERVIEW
The ADB Sensor Tester (ADBT) has been designed to test 4B adjustable depth bearing (ADB) style
temperature sensors in the field. During planned maintenance or periodic testing, the ADBT can be
used as a diagnostic tool to verify the alarm and shutdown sequences of the control unit are functioning
as expected. The unit operates in two testing modes, direct (heated) and indirect (simulated).
In direct mode, an integrated heating block within the ADBT heats the ADB sensor probe to the desired
trip point, and allows quick and easy real life testing of the sensor and temperature monitoring system.
Using indirect mode allows simulated testing of NTC type sensors within the network of 4B’s T500
Hotbus control unit. By connecting the ADBT to a TN4 node, testing of the node and the network is
accomplished by simulating the temperature above the sensor’s trip point and monitoring the response
of the control unit.
WARNING
• Do
NOT
use when hazardous dust is present
• Only use ADB Tester with 4B ADB bearing temperature sensors for direct (heated) testing
• Only use 4B HOTBUS-TN4 temperature nodes for indirect (simulated) testing
PAGE 6
Testing Temperature Controls
+/- 10°F (5°C) Increments
Power
On / Off
LED
Temperature
Display
Heater Block Input
for ADB Probe
(Direct Mode)
Temperature
Simulation
Output Cable
(Indirect Mode)
Temperature
Simulation
Control Knob
(Indirect Mode)