2-Wire 4-20 Ma Sink - Honeywell Touchpoint 1 Technical Manual

Note Honeywell Analytics recommend the use of half full-scale gas for calibration
purposes (contact a distributor for the supply of calibration gas).
The controller now displays the actual gas measurement at the gas detector.
12 Adjust the reading to the actual concentration of the calibration gas applied to the
sensor.
Use the Up/Down buttons.
13 Press the OK button.
The display shows a 10 second countdown.
If the set span succeeds the display shows GOOD.
If the set span fails the display shows FAIL and returns to the
beginning of the set span mode.
After successfully setting the span the display returns to the
menu selection mode.
14 Switch off the calibration test gas and remove the flow
adapter from the detector.
15 Refit any accessory to the detector.
16 Return Touchpoint 1 to normal operation.
Press the Cancel button. Alternatively select a different menu
option.

2-wire 4-20 mA Sink

This describes connection to gas detectors such as Sensepoint Toxic.
1 Set up the gas detector.
Refer to the detector's user manual for details describing how to set up the detector.
2 Check that all power and electrical connections to the controller, and electrical
connections to the gas detector are correct.
For gas detector access see its user manual. For detector to controller wiring details see page 19.
3 Follow step 2 on page 35.
4 Check for a minimum voltage of 16 Vdc at the gas detector.
For detectors other than Sensepoint Toxic/Oxygen refer to their operating instructions.
5 Check that the Touchpoint 1 display shows the correct gas units and range for the
detector in use.
If not follow the procedure on page 38 to change the gas units and range.
6 Follow step 4 on page 35, to step 16 on page 36.
TP1MAN Issue 3 Apr 06 (MAN0630)
Commissioning
ALARM POWER FAULT
36