Honeywell 700 ユーザーズマニュアル

35

66-2069—02

• Powered 700AC or 700DC correctly connected to a 

compatible viewing head.

• Multimeter able to take voltage and resistance 

measurements.

• For 700AC signal processors, an 85V AC to 265V AC 

power source.

• For 700DC signal processors, a 22V DC to 26V DC power 

supply.

• Light source* capable of generating a flame on condition. 

 

* Generally an incandescent bulb will work for IR viewing head 

sensors and a deep UV light or flame will work for UV viewing 

head sensors

1. Ensure the 700AC or 700DC signal processor under 

test is correctly connected to a compatible viewing head 

and is fully operational.

2. While performing the proof test, disconnect or disregard 

the signal processor outputs so that any outputs due to 

testing do not affect the overall safety system and 

potentially cause a hazardous situation.

3. Record all previously entered user programmable 

settings so that you can restore them to their desired 

values after the proof test.

1. Remove power to the signal processor and, using a 

multimeter, ensure continuity between ‘SC COM’ and 

‘SC OFF’.

2. Reapply power to the signal processor and, using a 

multimeter, ensure continuity between ‘SC COM’ and 

‘SC ON’.

3. Use a light source to generate a flame on condition and, 

using a multimeter, ensure continuity between ‘RF A 

COM’ and ‘RF A ON’, and between ‘RF B COM’ and ‘RF 

B ON’.

4. Remove any light source to generate a flame off 

condition and, using a multimeter, ensure continuity 

between ‘RF A COM’ and ‘RF A OFF’, and between ‘RF 

B COM’ and ‘RF B OFF’, after the FFRT (Flame Failure 

Response Time) has elapsed.

5. Measure the current draw of the signal processor with 

its viewing head attached and ensure it is less than 

0.07A RMS for 700AC signal processors and 250mA for 

700DC signal processors.

6. Measure the DC voltage between ground ‘VH GND’ and 

‘VH +V’ going to the viewing head. Ensure it is between 

20 and 26 V DC.

7. Change one of the settings of the signal processor and 

store the changed setting. Remove power to the signal 

processor for 10 seconds. Restore power to the signal 

processor and ensure the stored value has remained 

unchanged.

8. Use your light source to generate flamecounts of 

between 12 and 22 on the signal processor. Note the 

flamecount.

a. Increase the gain and store the setting. Ensure the 

flamecount increased.

b. Decrease the gain and store the setting. Ensure the 

flamecount decreased.

9. Restore all original settings as recorded in Setup and 

reconnect the signal processor to the safety system.

When required, decommissioning of the 700 should be 

performed in accordance with requirements of the overall 

safety system.