Hansen Technologies HGD-EC-NH3-100 Specifications, Applications, Service Instructions & Parts page 10

3. Select the instrument (default is "18TMAH") from
the list of available gas detectors
4. When prompted, enter the passkey (default is "123456")
5. Go to configure tab to setup device. When prompted,
enter unlock code to access device configuration.
(default is "1234")
APP CALIBRATION PROCEDURE
To calibrate the sensor using the APP:
1. Fit calibration adapter to the gas detector lid.
2. If using a variable flow regulator, adjust the gas flow
to approximately 0.3 L/min
Begin ZERO adjustment:
3. On APP, Home Tab > Calibrate > manually enter
values for zero gas.
4. Apply zero gas (or ambient except for CO2 or O2 if
ambient air free of target or cross-sensitive gases).
Confirm the start of calibration:
5. Press the Start Zero button.
Complete ZERO adjustment:
6. APP will countdown to completion. If calibration is
successful, proceed to Step 12.
7. Turn off gas flow from zero gas.
8. Replace zero gas with calibration gas in preparation
for span adjustment.
Begin SPAN adjustment:
9. Manually enter values for calibration gas.
10. Apply calibration gas at the concentration listed
on the cal gas concentration label (located on top
of the instrument).
Confirm the start of calibration:
11. Press the Start Span button.
Complete SPAN adjustment:
12. APP will countdown to completion. If calibration is
successful, proceed to Step 18.
13. Turn off gas flow from calibration gas and remove
the calibration adapter.
14. Allow detector to recover / stabilize before the
instrument returns to normal operation
(green LED).
A100h
JANUARY 2020
APP BUMP TEST PROCEDURE
Bump tests are required following installation of
detector or after replacement of sensing element.
Bump tests are also performed to verify the instrument
functionality. The steps to perform a bump test with the
Hansen Gas Detector APP:
1. Connect adapter and gas cylinder according to the
instructions in the General Calibration Procedure.
2. If desired, disable / silence external annunciators
(e.g., shutdown valves, notification of authorities,
etc.): Home Tab > Calibrate > Bump > toggle Take
Offline to disable communications to external
devices.
3. Apply a sufficiently high concentration of the
target gas to trigger alarms, but NOT pure
refrigerant or hydrocarbons (e.g., do not use a
butane lighter).
4. Once thresholds have been exceeded, relays
should activate, digital outputs should transmit
the gas concentration and on APP, gas
concentration should be displayed, the instrument
status should be "Low Alarm" or "High Alarm" and
alarms states should be "On."
5. Turn off gas flow and remove the calibration adapter.
6. Allow detector to recover / stabilize before the
instrument returns to normal operation (green LED).
APP COMPONENTS
DESCRIPTION
1 Alias - user configured sensor name
2 Serial Number - sensor 8 digit serial number
3 Target Gas - gas type currently detected by sensor
4 Status Ring - visual indicaAon of various sensor states (see below)
5 Live Measurement - current measurement
6 Measurement Unit - unit of measure (PPM/PPB/%LEL/%VOL)
STATE STATUS RING
Warm-up Green
Normal Green
Low Alarm Yellow
High Alarm Red
Offline Orange
Fault Orange
NegaAve Gas Fault Orange
Zero Cal. Fault Orange
Span Cal. Fault Orange
10
FIG. 13
DESCRIPTION
Gas Detector stabilizing aUer power on or restart
Normal operaAon
Measurement below low alarm set point
Measurement above high alarm set point
Sensor not acAvely monitoring gas or in maintenance mode
Fault detected
Sensor calibraAon drfited below zero, recalibrate
Error during zero calibraAon, zero recalibraAon required
Error during span calibraAon, span recalibraAon required