Detcon TP-524D-HRT - Manual (Page 36)

Model TP-524D-HRT
TP-524D-HRT Instruction Manual Rev. 0.3 Page 32 of 48
Figure 16 FP Calibration Screen
4.4.3.3 Sensor Calibration using the HRT Bridge
Calibration of a sensor using the HRT Bridge follows the same principle as calibrating the sensor via the
magnetic interface. Since most of the calibration information can be found in Section 3.4 Calibration Mode, it
is important to have the sensor manual on hand when performing sensor calibration.
Auto Zero
Auto Zero function is not used with the TP-524D-HRT Sensor.
Auto Span
The Auto Span function is used to calibrate the sensor. Unless otherwise specified by the associated sensor
manual, span calibration is recommended at 50% of range.
Material Requirements:
 Handheld Communicator or PC and interface for HRT Bridge.
 Detcon PN 600-610000-000 Splash Guard with integral Cal Port -OR-
-Detcon PN 943-000006-038 Threaded Calibration Adapter
 Detcon PN 985-241100-321 In-Line Humidifying Tube
 Detcon PN 942-010112-025 H2S Span Gas (recommended) or other suitable span gas source containing
H2S gas in air balance. A fixed flow rate of 200-500cc/min is recommended.
NOTE: Refer to Section 3.4 Calibration Mode (AutoSpan) for information regarding Span
Gas, flow rates, cross interference, or other sensor specific criteria.
Auto Span consists of entering “Autospan Cal” and following the display. The procedure will ask for the
application of span gas. The applied gas concentration must be equal to the Autospan gas level setting. The
factory default setting and recommendation for span gas concentration is normally 50% of range. If a span gas
containing the recommended concentration is not available, other concentrations may be used as long as they